Hi Tristan,
Thanks for using syncfusion products.
In WPF GridDataControl, You can Resize Row Header Size Automatically based on the RowIndex by invoking the ResizeColumnsToFit method by passing the GridResizeToFitOptions as NoShrinkSize, as shown in the following code snippet.
Code Snippet[C#]
this.grid.ModelLoaded += new EventHandler(grid_ModelLoaded);
void grid_ModelLoaded(object sender, EventArgs e)
{
this.grid.Model.ResizeColumnsToFit(GridRangeInfo.Col(0), GridResizeToFitOptions.NoShrinkSize);
}
Please download the workaround sample from the below location and check it out.
Sample link:<
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=ObservableCollection-1701379591.zip >
Please let us know if you need more information.
Thanks,
Kamal