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Asked: 2026-05-28T16:41:11+00:00

I am having a Datagrid that gets populated with values from a DataTable. In

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I am having a Datagrid that gets populated with values from a DataTable. In my program i have four buttons: Goto First, Last, Next and Previous, as the name name indicates i have to select the rows based on the selection made using these buttons. Everything seems well if i use the below code to get the row (for example first row).

DataGridRow row =(DataGridRow)userControl.m_DataGrid.ItemContainerGenerator.ContainerFromIndex(0);
row.IsSelected = true;

But the code throws null value when there is more rows than the height of the Datagrid(When scrollbar comes into picture).

Please help me out of this issue. I think this is because of the view problem.

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1 Answer

  1. Editorial Team

    Due to virtualization the containers are only created when the object is in view, so you could first scroll the item into view using the respective method, wait for the creation of the container and then select it.

    As this is rather messy i would suggest binding the IsSelected to a property on your item using a style for DataGridRow (set it as ItemContainerStyle). Then you can just set the property to true and scroll the item into view if need be.

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