[Solved] How to Flush the GridView properly?

[Jitin]

Hi,

In my application, I am having to load the same instance of grid with different data sets at different times. I try to flush out the grid every time I load new dataset. Still, I am seeing exceptions when I load the grid the second or third time or later. The exceptions indicates that the grid is somehow still attached to its old dataset. This usually happens when a user applies filter or column sorting and then go on to load another dataset. Here is code that I use to flush the grid completely before loading new data.

Do I need to add something here or follow different approach?

      this.radTargetGridNodes.SelectedItem = null;
      this.radTargetGridNodes.FilterDescriptors.Clear();
      this.radTargetGridNodes.FieldDescriptors.Clear();
      this.radTargetGridNodes.Columns.Clear();
      this.radTargetGridNodes.GroupDescriptors.Clear();
      this.radTargetGridNodes.TableDefinition.ChildTableDefinitions.Clear();
      this.radTargetGridNodes.Records.Clear();
      this.radTargetGridNodes.ItemsSource = null;

Thanks,
Jitin

[Pavel Pavlov]

Hi Jitin,

It seems you have hit a bug in RadGridView . It is definitely not normal for RadGridView to throw exceptions when changing the ItemsSource. Can you please help us resemble the problem here. As soon as we can reproduce the behavior here we will  try to provide a fix. Some code  or a sample project demonstrating how the exception occurs would be of great help for us .


Regards,
Pavel Pavlov
the Telerik team

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[Jitin]

Hi Pavel,

My current solution is in a very disconnected format. Everything is driven by web services from various sources. I will have to create another project with mocked-up data for you. I will attach it in this post later.

Thanks,
Jitin