WPF DataGrid: how do I stop auto scrolling when a cell is clicked?

Question

Problem:
If my DataGrid is not entirely visible (horizontal & vertical scrollbars are showing) and I click on one of my cells that is p

Answer 1

As Dr.WPF has answered a similar question here the RequestBringIntoView should be handled in ItemsPanel.

Answer 2

Define an EventSetter in the DataGrid.RowStyle to call a handler that prevents the row from being brought into view:

XAML

<DataGrid>
    <DataGrid.RowStyle>
        <Style TargetType="{x:Type DataGridRow}">  
            <EventSetter Event="Control.RequestBringIntoView" Handler="DataGrid_Documents_RequestBringIntoView"  />
        </Style>
    </DataGrid.RowStyle>
</DataGrid>

Handler

private void DataGrid_Documents_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
    e.Handled = true;      
}

Answer 3

I'm not sure this is working but here is an idea based on some investigation is made in the DataGrid's source code using Reflector:

1/ create a class which inherits DataGridCellsPanel. This is the Panel that is used internally by the DataGrid in order to arrange the cells

2/ override the BringIndexIntoView method by an empty method (without calling the base method)

3/ set the ItemsPanelTemplate property in your XAML:

<tk:DataGrid>
    <tk:DataGrid.ItemsPanel>
        <ItemsPanelTemplate>
            <local:DataGridCellsPanelNoAutoScroll />
        </ItemsPanelTemplate>
    </tk:DataGrid.ItemsPanel>
</tk:DataGrid>

It seems that when a MouseDown event occurs, at some point the BringIndexIntoView method of the panel is called to do the auto-scroll. Replacing it with a no-op might do the trick.

I hadn't time to test this solution, please let us know if it's working.