resolve file referencing on webinar creation time ...

Providers/XBaseFileProvider.cs

@@ -192,7 +192,7 @@ namespace xFileService.Providers
                 //
                 // Preparing Index ...
                 int index = GetLastIndex(providedForId);
-                if (index > 0)
+                if (index >= 0)
                 {
                     index++;
                 }
@@ -627,7 +627,7 @@ namespace xFileService.Providers
 
             //
             var lastIndex = GetLastIndex(providedForId);
-            if (lastIndex == 0)
+            if (lastIndex == -1)
             {
                 //
                 // This Means there isnot any Reference ...
@@ -642,16 +642,7 @@ namespace xFileService.Providers
             else
             {
                 //
-                // Check Provided Index Exists or not ...
-                var isExists = model.References.Any(r => r.Index == forIndex);
-                if (!isExists)
-                {
-                    //
-                    // Normalize For Index ...
-                    if (forIndex > lastIndex + 1)
-                    {
                 forIndex = lastIndex + 1;
-                    }
 
                 //
                 // Add New Reference ...
@@ -662,10 +653,6 @@ namespace xFileService.Providers
                     ReferencedTo = $"{providedForId}"
                 });
             }
-                else
-                {
-                }
-            }
 
             //
             // Update Data Base ...

Providers/XFileProvider.cs

@@ -1545,6 +1545,7 @@ namespace xFileService.Providers
 
             //
             // Fill Data for Update ...
+            var itemEntity = item.FromDto();
             entity = entity.UpdateData(
                 updateWith: item,
                 propertyBlackList: new List<string>
@@ -1555,7 +1556,14 @@ namespace xFileService.Providers
                     nameof(XFile.References),
                 }
             );
-            entity.References = item.References.ToListString();
+
+            //
+            if (!itemEntity.IsNullOrDefault())
+            {
+                entity.References = itemEntity.References;
+            }
+
+            //
             if (entity.IsNullOrDefault())
             {
                 XException.InvalidData.Throw();