I'm afraid that there's no straightforward way to achieve the desired behavior as the row indicator I believe you're referring to is technically not a column and thus, cannot be resized at runtime.
What I can suggest, however, is to set RadGridView's RowIndicatorVisibility
, create a new GridViewColumn
as the grid's first column and define a custom CellTemplate
in which to mimic the look of the row indicator. You can find the default PART_IndicatorPresenter
border element in the control template of the GridViewRow
control which is located in Telerik.Windows.Controls.GridView.xaml
of the respective theme inside your UI for WPF
installation folder under Themes.Implicit
Please let me know whether such an approach would work for you.
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