diff --git a/Controllers/XWebinarServiceControllerBase.cs b/Controllers/XWebinarServiceControllerBase.cs
index b1e1bb7..99c735b 100644
--- a/Controllers/XWebinarServiceControllerBase.cs
+++ b/Controllers/XWebinarServiceControllerBase.cs
@@ -13,6 +13,7 @@ using xIdentityService.Interfaces;
 using xModels.Dtos;
 using xWebinarService.Interfaces;
 using xWebinarService.Models.Dtos;
+using Microsoft.AspNetCore.Http;
 
 namespace xWebinarService.Controllers
 {
@@ -52,10 +53,14 @@ namespace xWebinarService.Controllers
         /// Create Webinar ...
         /// </summary>
         /// <param name="item"></param>
+        /// <param name="tags"></param>
+        /// <param name="files"></param>
         /// <returns></returns>
         [HttpPost("Create")]
         public virtual async Task<ActionResult<XWebinarDto>> CreateWebinar(
-            [FromBody] XWebinarDto item
+            [FromBody] XWebinarDto item,
+            [FromQuery] string tags = null,
+            [FromForm] IFormFileCollection files = null
         )
         {
             //
@@ -77,9 +82,12 @@ namespace xWebinarService.Controllers
                 }
 
                 //
+                var tagList = tags.ParseListString<string>();
                 var result = await WebinarProvider
                     .CreateWebinar(
                         item: item,
+                        files: files,
+                        tags: tagList,
                         connectionId: connectionId
                 );
 
@@ -200,33 +208,6 @@ namespace xWebinarService.Controllers
             }
         }
 
-        /// <summary>
-        /// Retrieve all Exists Webinar Ids ...
-        /// </summary>
-        /// <returns></returns>
-        [HttpGet("Ids")]
-        public virtual ActionResult<IEnumerable<Guid>> GetWebinarIds()
-        {
-            //
-            // Do ...
-            try
-            {
-                //
-                var result = WebinarProvider
-                    .GetWebinarIds();
-
-                //
-                return Ok(result.
-                    ToDynamicObject());
-            }
-            catch (Exception ex)
-            {
-                //
-                var result = GetExceptionActionResult(ex);
-                return result;
-            }
-        }
-
         /// <summary>
         /// Query Webinars ...
         /// </summary>
@@ -258,12 +239,12 @@ namespace xWebinarService.Controllers
         }
 
         /// <summary>
-        /// Query Webinar Ids ...
+        /// Query Owned Webinars ...
         /// </summary>
         /// <param name="query"></param>
         /// <returns></returns>
-        [HttpGet("QueryIds")]
-        public virtual ActionResult<XQueryResult<Guid>> QueryWebinarIds(
+        [HttpGet("QueryOwned")]
+        public virtual async Task<ActionResult<XQueryResult<XWebinarDto>>> QueryOwnedWebinars(
             [FromQuery] XQuery query
         )
         {
@@ -272,8 +253,52 @@ namespace xWebinarService.Controllers
             try
             {
                 //
-                var result = WebinarProvider
-                    .QueryWebinarIds(query);
+                // Retrieve User Info ...
+                var userInfo = await GetUserInfo();
+
+                //
+                var result = await WebinarProvider
+                    .QueryOwnedWebinars(
+                        query: query,
+                        userInfo: userInfo
+                    );
+
+                //
+                return Ok(result.
+                    ToDynamicObject());
+            }
+            catch (Exception ex)
+            {
+                //
+                var result = GetExceptionActionResult(ex);
+                return result;
+            }
+        }
+
+        /// <summary>
+        /// Query Joinable Webinars ...
+        /// </summary>
+        /// <param name="query"></param>
+        /// <returns></returns>
+        [HttpGet("QueryJoinable")]
+        public virtual async Task<ActionResult<XQueryResult<XWebinarDto>>> QueryJoinableWebinars(
+            [FromQuery] XQuery query
+        )
+        {
+            //
+            // Do ...
+            try
+            {
+                //
+                // Retrieve User Info ...
+                var userInfo = await GetUserInfo();
+
+                //
+                var result = await WebinarProvider
+                    .QueryJoinableWebinars(
+                        query: query,
+                        userInfo: userInfo
+                    );
 
                 //
                 return Ok(result.
@@ -708,5 +733,209 @@ namespace xWebinarService.Controllers
             }
         }
         #endregion
+
+        //
+        #region File Actions ...
+        /// <summary>
+        /// Upload Specified Files for Specified Webinar ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="files"></param>
+        /// <returns></returns>
+        [HttpPost("{id}/Files")]
+        public virtual async Task<ActionResult<IEnumerable<XFileDto>>> Upload(
+            [FromRoute] Guid id,
+            [FromForm] IFormFileCollection files
+        )
+        {
+            //
+            // Do ...
+            try
+            {
+                //
+                // Retrieve User Info ...
+                var userInfo = await GetUserInfo();
+                var connectionId = GetConnectionId();
+
+                //
+                var result = await WebinarProvider
+                    .Upload(
+                        id: id,
+                        files: files,
+                        userInfo: userInfo,
+                        connectionId: connectionId
+                );
+
+                //
+                return Ok(result.
+                    ToDynamicObject());
+            }
+            catch (Exception ex)
+            {
+                //
+                var result = GetExceptionActionResult(ex);
+                return result;
+            }
+        }
+
+        /// <summary>
+        /// Remove Specified (All) Files of Specified Webinar ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="ids"></param>
+        /// <returns></returns>
+        [HttpDelete("{id}/Files")]
+        public virtual async Task<ActionResult<IEnumerable<XFileDto>>> Remove(
+            [FromRoute] Guid id,
+            [FromQuery] string ids = null
+        )
+        {
+            //
+            // Do ...
+            try
+            {
+                //
+                // Retrieve User Info ...
+                var userInfo = await GetUserInfo();
+                var connectionId = GetConnectionId();
+
+                //
+                var result = await WebinarProvider
+                    .RemoveFiles(
+                        id: id,
+                        ids: ids,
+                        userInfo: userInfo,
+                        connectionId: connectionId
+                );
+
+                //
+                return Ok(result.
+                    ToDynamicObject());
+            }
+            catch (Exception ex)
+            {
+                //
+                var result = GetExceptionActionResult(ex);
+                return result;
+            }
+        }
+
+        /// <summary>
+        /// Retrieve Specified Webinar's Files ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <returns></returns>
+        [HttpGet("{id}/Files")]
+        public virtual async Task<ActionResult<IEnumerable<XFileDto>>> GetFiles(
+            [FromRoute] Guid id
+        )
+        {
+            //
+            // Do ...
+            try
+            {
+                //
+                var result = await WebinarProvider
+                    .GetFiles(id);
+
+                //
+                return Ok(result.
+                    ToDynamicObject());
+            }
+            catch (Exception ex)
+            {
+                //
+                var result = GetExceptionActionResult(ex);
+                return result;
+            }
+        }
+        #endregion
+
+        //
+        #region Tags Actions ...
+        /// <summary>
+        /// Attach Specified Tags To Specified Webinar ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="tags"></param>
+        /// <returns></returns>
+        [HttpPost("{id}/Tags")]
+        public virtual async Task<ActionResult> TagsAttach(
+            [FromRoute] Guid id,
+            [FromQuery] string tags
+        )
+        {
+            //
+            // Do ...
+            try
+            {
+                //
+                // Retrieve User Info ...
+                var userInfo = await GetUserInfo();
+                var connectionId = GetConnectionId();
+
+                //
+                var tagsList = tags.ParseListString<string>();
+                await WebinarProvider
+                    .TagsAttach(
+                        id: id,
+                        tags: tagsList,
+                        userInfo: userInfo,
+                        connectionId: connectionId
+                );
+
+                //
+                return Ok();
+            }
+            catch (Exception ex)
+            {
+                //
+                var result = GetExceptionActionResult(ex);
+                return result;
+            }
+        }
+
+        /// <summary>
+        /// Detach Specified Tags From Specified Webinar ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="tags"></param>
+        /// <returns></returns>
+        [HttpDelete("{id}/Tags")]
+        public virtual async Task<ActionResult> TagsDetach(
+            [FromRoute] Guid id,
+            [FromQuery] string tags
+        )
+        {
+            //
+            // Do ...
+            try
+            {
+                //
+                // Retrieve User Info ...
+                var userInfo = await GetUserInfo();
+                var connectionId = GetConnectionId();
+
+                //
+                var tagsList = tags.ParseListString<string>();
+                await WebinarProvider
+                    .TagsDetach(
+                        id: id,
+                        tags: tagsList,
+                        userInfo: userInfo,
+                        connectionId: connectionId
+                );
+
+                //
+                return Ok();
+            }
+            catch (Exception ex)
+            {
+                //
+                var result = GetExceptionActionResult(ex);
+                return result;
+            }
+        }
+        #endregion
     }
 }
\ No newline at end of file
diff --git a/Interfaces/IXWebinarProvider.cs b/Interfaces/IXWebinarProvider.cs
index 71801fa..49c7747 100644
--- a/Interfaces/IXWebinarProvider.cs
+++ b/Interfaces/IXWebinarProvider.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq.Expressions;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.SignalR;
@@ -106,6 +107,37 @@ namespace xWebinarService.Interfaces
         /// <returns></returns>
         Task<XQueryResult<XWebinarDto>> QueryWebinars(XQuery query);
 
+        /// <summary>
+        /// Conditional Query Webinars ...
+        /// </summary>
+        /// <param name="whereClause"></param>
+        /// <param name="query"></param>
+        /// <returns></returns>
+        Task<XQueryResult<XWebinarDto>> ConditionalQueryWebinars(
+            Expression<Func<XWebinarDto, bool>> whereClause,
+            XQuery query            
+        );
+
+        /// <summary>
+        /// Query Owned Webinars ...
+        /// </summary>
+        /// <param name="query"></param>
+        /// <returns></returns>
+        Task<XQueryResult<XWebinarDto>> QueryOwnedWebinars(
+            XQuery query,
+            XUserClaimsInfoDto userInfo = null
+        );
+
+        /// <summary>
+        /// Query Joinable Webinars ...
+        /// </summary>
+        /// <param name="query"></param>
+        /// <returns></returns>
+        Task<XQueryResult<XWebinarDto>> QueryJoinableWebinars(
+            XQuery query,
+            XUserClaimsInfoDto userInfo = null
+        );
+
         /// <summary>
         /// Query Webinar Ids ...
         /// </summary>
@@ -204,11 +236,13 @@ namespace xWebinarService.Interfaces
         /// <param name="forProvidedId"></param>
         /// <param name="files"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <returns></returns>
         Task<IEnumerable<XFileDto>> Upload(
             Guid id,
             IFormFileCollection files,
-            XUserClaimsInfoDto userInfo = null
+            XUserClaimsInfoDto userInfo = null,
+            string connectionId = null
         );
 
         /// <summary>
@@ -217,11 +251,13 @@ namespace xWebinarService.Interfaces
         /// <param name="forProvidedId"></param>
         /// <param name="ids"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <returns></returns>
         Task<IEnumerable<Guid>> RemoveFiles(
             Guid id,
             string ids = null,
-            XUserClaimsInfoDto userInfo = null
+            XUserClaimsInfoDto userInfo = null,
+            string connectionId = null
         );
 
         /// <summary>
@@ -240,12 +276,14 @@ namespace xWebinarService.Interfaces
         /// <param name="tag"></param>
         /// <param name="id"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <param name="forceAttachToFiles"></param>
         /// <returns></returns>
         Task TagAttach(
             string tag,
             Guid id,
             XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
             bool forceAttachToFiles = true
         );
 
@@ -255,12 +293,14 @@ namespace xWebinarService.Interfaces
         /// <param name="tag"></param>
         /// <param name="id"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <param name="forceAttachToFiles"></param>
         /// <returns></returns>
         Task TagDetach(
             string tag,
             Guid id,
             XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
             bool forceDetachFromFiles = true
         );
 
@@ -270,12 +310,14 @@ namespace xWebinarService.Interfaces
         /// <param name="tags"></param>
         /// <param name="id"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <param name="forceAttachToFiles"></param>
         /// <returns></returns>
         Task TagsAttach(
             IEnumerable<string> tags,
             Guid id,
             XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
             bool forceAttachToFiles = true
         );
 
@@ -285,12 +327,14 @@ namespace xWebinarService.Interfaces
         /// <param name="tags"></param>
         /// <param name="id"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <param name="forceDetachFromFiles"></param>
         /// <returns></returns>
         Task TagsDetach(
             IEnumerable<string> tags,
             Guid id,
             XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
             bool forceDetachFromFiles = true
         );
 
@@ -298,10 +342,14 @@ namespace xWebinarService.Interfaces
         /// Detach all Attached Tags for Specified File ...
         /// </summary>
         /// <param name="id"></param>
+        /// <param name="connectionId"></param>
+        /// <param name="forceDetachFromFiles"></param>
         /// <returns></returns>
         Task TagsDetach(
             Guid id,
-            XUserClaimsInfoDto userInfo = null
+            XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
+            bool forceDetachFromFiles = true
         );
         #endregion
     }
diff --git a/Interfaces/IXWebinarServiceControllerActions.cs b/Interfaces/IXWebinarServiceControllerActions.cs
index f6a76d6..49a14a4 100644
--- a/Interfaces/IXWebinarServiceControllerActions.cs
+++ b/Interfaces/IXWebinarServiceControllerActions.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 using xModels.Dtos;
 using xWebinarService.Models.Dtos;
@@ -18,22 +19,32 @@ namespace xWebinarService.Interfaces
         /// Create Webinar ...
         /// </summary>
         /// <param name="item"></param>
+        /// <param name="tags"></param>
+        /// <param name="files"></param>
         /// <returns></returns>
-        Task<ActionResult<XWebinarDto>> CreateWebinar([FromBody] XWebinarDto item);
+        Task<ActionResult<XWebinarDto>> CreateWebinar(
+            [FromBody] XWebinarDto item,
+            [FromQuery] string tags = null,
+            [FromForm] IFormFileCollection files = null
+        );
 
         /// <summary>
         /// Update a Webinar  ...
         /// </summary>
         /// <param name="item"></param>
         /// <returns></returns>
-        Task<ActionResult<XWebinarDto>> UpdateWebinar([FromBody] XWebinarDto item);
+        Task<ActionResult<XWebinarDto>> UpdateWebinar(
+            [FromBody] XWebinarDto item
+        );
 
         /// <summary>
         /// Retrieve Specified Webinar ...
         /// </summary>
         /// <param name="id"></param>
         /// <returns></returns>
-        Task<ActionResult<XWebinarDto>> GetWebinar([FromQuery] Guid id);
+        Task<ActionResult<XWebinarDto>> GetWebinar(
+            [FromQuery] Guid id
+        );
 
         /// <summary>
         /// Retrieve all Exists Webinars ...
@@ -41,25 +52,32 @@ namespace xWebinarService.Interfaces
         /// <returns></returns>
         Task<ActionResult<IEnumerable<XWebinarDto>>> GetWebinars();
 
-        /// <summary>
-        /// Retrieve all Exists Webinar Ids ...
-        /// </summary>
-        /// <returns></returns>
-        ActionResult<IEnumerable<Guid>> GetWebinarIds();
-
         /// <summary>
         /// Query Webinars ...
         /// </summary>
         /// <param name="query"></param>
         /// <returns></returns>
-        Task<ActionResult<XQueryResult<XWebinarDto>>> QueryWebinars([FromQuery] XQuery query);
+        Task<ActionResult<XQueryResult<XWebinarDto>>> QueryWebinars(
+            [FromQuery] XQuery query
+        );
 
         /// <summary>
-        /// Query Webinar Ids ...
+        /// Query Owned Webinars ...
         /// </summary>
         /// <param name="query"></param>
         /// <returns></returns>
-        ActionResult<XQueryResult<Guid>> QueryWebinarIds([FromQuery] XQuery query);
+        Task<ActionResult<XQueryResult<XWebinarDto>>> QueryOwnedWebinars(
+            [FromQuery] XQuery query
+        );
+
+        /// <summary>
+        /// Query Joinable Webinars ...
+        /// </summary>
+        /// <param name="query"></param>
+        /// <returns></returns>
+        Task<ActionResult<XQueryResult<XWebinarDto>>> QueryJoinableWebinars(
+            [FromQuery] XQuery query
+        );
 
         /// <summary>
         /// Remove Specified Webinar ...
@@ -143,5 +161,64 @@ namespace xWebinarService.Interfaces
             [FromQuery] Guid webinarId
         );
         #endregion        
+
+        //
+        #region File Actions ...
+        /// <summary>
+        /// Upload Specified Files for Specified Webinar ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="files"></param>
+        /// <returns></returns>
+        Task<ActionResult<IEnumerable<XFileDto>>> Upload(
+            [FromRoute] Guid id,
+            [FromForm] IFormFileCollection files
+        );
+
+        /// <summary>
+        /// Remove Specified (All) Files of Specified Webinar ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="ids"></param>
+        /// <returns></returns>
+        Task<ActionResult<IEnumerable<XFileDto>>> Remove(
+            [FromRoute] Guid id,
+            [FromQuery] string ids = null
+        );
+
+        /// <summary>
+        /// Retrieve Specified Webinar's Files ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <returns></returns>
+        Task<ActionResult<IEnumerable<XFileDto>>> GetFiles(
+            [FromRoute] Guid id
+        );
+        #endregion
+
+        //
+        #region Tags Actions ...
+        /// <summary>
+        /// Attach Specified Tags To Specified Webinar ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="tags"></param>
+        /// <returns></returns>
+        Task<ActionResult> TagsAttach(
+            [FromRoute] Guid id,
+            [FromQuery] string tags
+        );
+
+        /// <summary>
+        /// Detach Specified Tags From Specified Webinar ...
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="tags"></param>
+        /// <returns></returns>
+        Task<ActionResult> TagsDetach(
+            [FromRoute] Guid id,
+            [FromQuery] string tags
+        );        
+        #endregion
     }
 }
\ No newline at end of file
diff --git a/Providers/XWebinarProvider.cs b/Providers/XWebinarProvider.cs
index cad02da..1ca3435 100644
--- a/Providers/XWebinarProvider.cs
+++ b/Providers/XWebinarProvider.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Linq.Expressions;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.SignalR;
@@ -334,6 +335,7 @@ namespace xWebinarService.Providers
                         tags: tags,
                         id: entity.Id,
                         userInfo: userInfo,
+                        connectionId: connectionId,
                         true //
                     );
                 }
@@ -366,6 +368,10 @@ namespace xWebinarService.Providers
             string connectionId = null
         )
         {
+            //
+            // Since Medias and Tags Manages Separatly, here 
+            // we dont need to ensure that ...
+
             //
             // Validate ...
             bool isValid =
@@ -584,7 +590,6 @@ namespace xWebinarService.Providers
             // Since in Resourceable Entities we have to Search on Locales
             // we Must Implement Senario Custom ...
             var totalEntities = await WebinarRepository.GetAllAsync();
-            Console.WriteLine($"Query Reading All ...");
 
             //
             var list = new List<XWebinarDto>();
@@ -596,7 +601,6 @@ namespace xWebinarService.Providers
             }
             var items = list.AsEnumerable();
             var totalItemsCount = items.Count();
-            Console.WriteLine($"Query Reading Item's Tasks ...");
 
             //
             // Apply Filter ...
@@ -605,9 +609,6 @@ namespace xWebinarService.Providers
                 //
                 items = items
                     .ApplyFilter(query.Filter);
-
-                //
-                Console.WriteLine($"Query Apply Filter ...");
             }
             int filteredItemsCount = items.Count();
 
@@ -629,8 +630,6 @@ namespace xWebinarService.Providers
                         query.SortBy,
                         query.IsAscending
                     );
-                //
-                Console.WriteLine($"Query Apply Sorting ...");
 
                 //
                 // Apply Paging ...
@@ -640,8 +639,6 @@ namespace xWebinarService.Providers
                         query.Page,
                         query.PageSize
                     );
-                //
-                Console.WriteLine($"Query Apply Paging ...");
             }
 
             //
@@ -661,6 +658,170 @@ namespace xWebinarService.Providers
             return result;
         }
 
+        /// <summary>
+        /// Conditional Query Webinars ...
+        /// </summary>
+        /// <param name="whereClause"></param>
+        /// <param name="query"></param>
+        /// <returns></returns>
+        public async Task<XQueryResult<XWebinarDto>> ConditionalQueryWebinars(
+            Expression<Func<XWebinarDto, bool>> whereClause,
+            XQuery query
+        )
+        {
+            //
+            // Validate ...
+            if (query.IsNull() || whereClause.IsNull())
+            {
+                XException.InvalidArgs.Throw();
+            }
+
+            //
+            // Normalize ...
+            query = query.NormalizeQuery(DataSercviceConfiguration);
+
+            //
+            // Compile Expression ...
+            var whereFunc = whereClause.Compile();
+
+            //
+            // Since in Resourceable Entities we have to Search on Locales
+            // we Must Implement Senario Custom ...
+            var totalEntities = await WebinarRepository.GetAllAsync();
+
+            //
+            var list = new List<XWebinarDto>();
+            foreach (var entity in totalEntities)
+            {
+                //
+                var dto = await ToXWebinarDto(entity);
+
+                //
+                // Validate and Check Conditions ...
+                if (!dto.IsNullOrDefault() && whereFunc(dto))
+                {
+                    list.Add(dto);
+                }
+            }
+            var items = list.AsEnumerable();
+            var totalItemsCount = items.Count();
+
+            //
+            // Apply Filter ...
+            if (!query.Filter.IsNullOrEmpty())
+            {
+                //
+                items = items
+                    .ApplyFilter(query.Filter);
+            }
+            int filteredItemsCount = items.Count();
+
+            //
+            // Count Pages ...
+            var totalPagesCount = query.CountPages(totalItemsCount);
+            var filteredPagesCount = query.CountPages(filteredItemsCount);
+
+            //
+            // Apply Paging and Sorting ...
+            if (totalItemsCount > 0 &&
+                filteredItemsCount > 0)
+            {
+                //
+                // Apply Sorting ...
+                items = items
+                    .ToList()
+                    .ApplySorting(
+                        query.SortBy,
+                        query.IsAscending
+                    );
+
+                //
+                // Apply Paging ...
+                items = items
+                    .ToList()
+                    .ApplyPaging(
+                        query.Page,
+                        query.PageSize
+                    );
+            }
+
+            //
+            // Prepare Result ...
+            var result = new XQueryResult<XWebinarDto>
+            {
+                Page = query.Page,
+                Items = items.ToList(),
+                PageSize = query.PageSize,
+                TotalPages = totalPagesCount,
+                TotalItems = totalItemsCount,
+                TotalFilteredPages = filteredPagesCount,
+                TotalFilteredItems = filteredItemsCount
+            };
+
+            //
+            return result;
+        }
+
+        /// <summary>
+        /// Query Owned Webinars ...
+        /// </summary>
+        /// <param name="query"></param>
+        /// <returns></returns>
+        public async Task<XQueryResult<XWebinarDto>> QueryOwnedWebinars(
+            XQuery query,
+            XUserClaimsInfoDto userInfo = null
+        )
+        {
+            //
+            // Validate ...
+            var isValid = !query.IsNullOrDefault() &&
+                !userInfo.IsNullOrDefault();
+            if (!isValid)
+            {
+                XException.InvalidArgs.Throw();
+            }
+
+            //
+            Expression<Func<XWebinarDto, bool>> whereClause = d => d.OwnerId == userInfo.UserId;
+            var result = await ConditionalQueryWebinars(
+                query: query,
+                whereClause: whereClause
+            );
+            return result;
+        }
+
+        /// <summary>
+        /// Query Joinable Webinars ...
+        /// </summary>
+        /// <param name="query"></param>
+        /// <returns></returns>
+        public async Task<XQueryResult<XWebinarDto>> QueryJoinableWebinars(
+            XQuery query,
+            XUserClaimsInfoDto userInfo = null
+        )
+        {
+            //
+            // Validate ...
+            var isValid = !query.IsNullOrDefault() &&
+                !userInfo.IsNullOrDefault();
+            if (!isValid)
+            {
+                XException.InvalidArgs.Throw();
+            }
+
+            //
+            // Create an Expression to Check Specified Webinar is Joinable by Provided User Info or not ...
+            Expression<Func<XWebinarDto, bool>> whereClause = d =>
+                d.OwnerId == userInfo.UserId ||
+                d.Type == XWebinarType.Public ||
+                WebinarSubscriberRepository.AsQueryable().Any(ws => ws.WebinarId == d.Id && ws.SubscriberId == userInfo.UserId);
+            var result = await ConditionalQueryWebinars(
+                query: query,
+                whereClause: whereClause
+            );
+            return result;
+        }
+
         /// <summary>
         /// Query Webinar Ids ...
         /// </summary>
@@ -1246,11 +1407,13 @@ namespace xWebinarService.Providers
         /// <param name="forProvidedId"></param>
         /// <param name="files"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <returns></returns>
         public async Task<IEnumerable<XFileDto>> Upload(
             Guid id,
             IFormFileCollection files,
-            XUserClaimsInfoDto userInfo = null
+            XUserClaimsInfoDto userInfo = null,
+            string connectionId = null
         )
         {
             //
@@ -1279,7 +1442,8 @@ namespace xWebinarService.Providers
                 result = (await WebinarFileProvider.Upload(
                     files: files,
                     forProvidedId: id,
-                    userInfo: userInfo
+                    userInfo: userInfo,
+                    connectionId: connectionId
                 ))
                 .ToList();
             }
@@ -1295,11 +1459,13 @@ namespace xWebinarService.Providers
         /// <param name="forProvidedId"></param>
         /// <param name="ids"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <returns></returns>
         public async Task<IEnumerable<Guid>> RemoveFiles(
             Guid id,
             string ids = null,
-            XUserClaimsInfoDto userInfo = null
+            XUserClaimsInfoDto userInfo = null,
+            string connectionId = null
         )
         {
             //
@@ -1322,9 +1488,10 @@ namespace xWebinarService.Providers
 
             //
             var result = await WebinarFileProvider.Remove(
-                id,
-                ids,
-                userInfo
+                forProvidedId: id,
+                ids: ids,
+                userInfo: userInfo,
+                connectionId: connectionId
             );
             return result;
         }
@@ -1362,12 +1529,14 @@ namespace xWebinarService.Providers
         /// <param name="tag"></param>
         /// <param name="id"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <param name="forceAttachToFiles"></param>
         /// <returns></returns>
         public async Task TagAttach(
             string tag,
             Guid id,
             XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
             bool forceAttachToFiles = true
         )
         {
@@ -1395,7 +1564,7 @@ namespace xWebinarService.Providers
                 {
                     //
                     // Attached Tag to Webinar ...
-                    await WebinarTagProvider.Attach(tag, id);
+                    await WebinarTagProvider.Attach(tag, id, connectionId);
 
                     //
                     if (forceAttachToFiles)
@@ -1408,7 +1577,13 @@ namespace xWebinarService.Providers
                             //
                             foreach (var media in medias)
                             {
-                                await WebinarFileProvider.Provider.TagAttach(tag, media.Id);
+                                //
+                                await WebinarFileProvider.Provider.TagAttach(
+                                    tag,
+                                    media.Id,
+                                    userInfo,
+                                    connectionId
+                                );
                             }
                         }
                     }
@@ -1423,12 +1598,14 @@ namespace xWebinarService.Providers
         /// <param name="tag"></param>
         /// <param name="id"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <param name="forceAttachToFiles"></param>
         /// <returns></returns>
         public async Task TagDetach(
             string tag,
             Guid id,
             XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
             bool forceDetachFromFiles = true
         )
         {
@@ -1454,7 +1631,7 @@ namespace xWebinarService.Providers
                 try
                 {
                     //
-                    await WebinarTagProvider.Detach(tag, id);
+                    await WebinarTagProvider.Detach(tag, id, connectionId);
 
                     //
                     if (forceDetachFromFiles)
@@ -1467,7 +1644,13 @@ namespace xWebinarService.Providers
                             //
                             foreach (var media in medias)
                             {
-                                await WebinarFileProvider.Provider.TagDetach(tag, media.Id);
+                                //
+                                await WebinarFileProvider.Provider.TagDetach(
+                                    tag,
+                                    media.Id,
+                                    userInfo,
+                                    connectionId
+                                );
                             }
                         }
                     }
@@ -1482,12 +1665,14 @@ namespace xWebinarService.Providers
         /// <param name="tags"></param>
         /// <param name="id"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <param name="forceAttachToFiles"></param>
         /// <returns></returns>
         public async Task TagsAttach(
             IEnumerable<string> tags,
             Guid id,
             XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
             bool forceAttachToFiles = true
         )
         {
@@ -1521,6 +1706,7 @@ namespace xWebinarService.Providers
                             tag,
                             id,
                             userInfo,
+                            connectionId,
                             forceAttachToFiles
                         );
                     }
@@ -1535,12 +1721,14 @@ namespace xWebinarService.Providers
         /// <param name="tags"></param>
         /// <param name="id"></param>
         /// <param name="userInfo"></param>
+        /// <param name="connectionId"></param>
         /// <param name="forceDetachFromFiles"></param>
         /// <returns></returns>
         public async Task TagsDetach(
             IEnumerable<string> tags,
             Guid id,
             XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
             bool forceDetachFromFiles = true
         )
         {
@@ -1574,6 +1762,7 @@ namespace xWebinarService.Providers
                             tag,
                             id,
                             userInfo,
+                            connectionId,
                             forceDetachFromFiles
                         );
                     }
@@ -1586,10 +1775,14 @@ namespace xWebinarService.Providers
         /// Detach all Attached Tags for Specified File ...
         /// </summary>
         /// <param name="id"></param>
+        /// <param name="connectionId"></param>
+        /// <param name="forceDetachFromFiles"></param>
         /// <returns></returns>
         public async Task TagsDetach(
             Guid id,
-            XUserClaimsInfoDto userInfo = null
+            XUserClaimsInfoDto userInfo = null,
+            string connectionId = null,
+            bool forceDetachFromFiles = true
         )
         {
             //
@@ -1612,7 +1805,23 @@ namespace xWebinarService.Providers
                 try
                 {
                     //
-                    var tags = await WebinarTagProvider.RemoveTagsFor(id);
+                    var tags = await WebinarTagProvider.RemoveTagsFor(id, connectionId);
+
+                    //
+                    if (forceDetachFromFiles)
+                    {
+                        //
+                        var medias = await WebinarFileProvider.GetAllFor(id);
+                        if (!medias.IsNull() && medias.HasChild())
+                        {
+                            //
+                            foreach (var media in medias)
+                            {
+                                //
+                                await WebinarFileProvider.Provider.TagsDetach(media.Id, userInfo, connectionId);
+                            }
+                        }
+                    }
                 }
                 catch { }
             }