RadMultiColumnComboBox how to add SortDescriptors to GridViewItemsSourceProvider?

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MultiColumnComboBox
ClausDC
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ClausDC asked on 17 May 2022, 08:12 AM | edited on 17 May 2022, 09:06 AM

How can I add Sorting to the DropDown GridView, so that when the User first opens the DropDown, the GridView is already sorted on one or more columns?

ClausDC
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commented on 17 May 2022, 08:51 AM

This should be in the WPF sub forum.

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Martin Ivanov
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answered on 19 May 2022, 02:48 PM

Hello Claus,

You can achieve your requirement using the InitializeDropDownContentManager event of RadMultiColumnComboBox. In the event handler, you can get the RadGridView control and populate its SortDescriptors. For example:

private void RadMultiColumnComboBox_InitializeDropDownContentManager(object sender, Telerik.Windows.Controls.MultiColumnComboBox.DropDownContentManagerEventArgs e)
{
	var gridView = (RadGridView)e.DropDownContentManager.DropDownElement;
	gridView.SortDescriptors.Add(new SortDescriptor() { Member = "MyProperty", SortDirection = ListSortDirection.Descending });
}

Regards,
Martin Ivanov
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ClausDC
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commented on 20 May 2022, 07:03 AM

Perfect, thanks!
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Martin Ivanov
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