C
C#•3d ago
Suchacoolguy

✅ enable single-click cell editing in Avalonia DataGrid

Hi all, In my Avalonia UI DataGrid, clicking on any cell currently selects the entire row, and I have to click the cell one more time before I can start typing. I'd like to achieve: 1. After a single click on the cell, the user should be able to immediately start typing without any additional clicks. (It's okay to disable full-row selection because we don't need it.) Is there a built-in property or a recommended workaround to achieve single-click cell editing without row selection? Thanks in advance! The Column that should allow input: 
<DataGridTextColumn Header="SplitLength" 
                    Binding="{Binding SplitLength}" 
                    IsReadOnly="False" 
                    Width="1*" 
                    Tag="SplitLength"/>
<DataGridTextColumn Header="SplitLength" 
                    Binding="{Binding SplitLength}" 
                    IsReadOnly="False" 
                    Width="1*" 
                    Tag="SplitLength"/>
The DataGrid: 
<DataGrid Name="Table" ItemsSource="{Binding PartsFiltered}"
              CanUserReorderColumns="False"
              CanUserResizeColumns="True"
              CanUserSortColumns="True"
              GridLinesVisibility="All"
              FontSize="5"
              BorderThickness="1" BorderBrush="Gray"
              CellEditEnding="Table_CellEditEnding"
              CellPointerPressed="Table_OnCellPointerPressed">
<DataGrid Name="Table" ItemsSource="{Binding PartsFiltered}"
              CanUserReorderColumns="False"
              CanUserResizeColumns="True"
              CanUserSortColumns="True"
              GridLinesVisibility="All"
              FontSize="5"
              BorderThickness="1" BorderBrush="Gray"
              CellEditEnding="Table_CellEditEnding"
              CellPointerPressed="Table_OnCellPointerPressed">
current code behind for "CellPointerPressed": 
private void Table_OnCellPointerPressed(object? sender, DataGridCellPointerPressedEventArgs e)
        {
            // only for the SplitLength column
            if (e.Column is DataGridTextColumn textColumn &&
                textColumn.Tag?.ToString() == "SplitLength")
            {
                // i guess i need to do something here?
            }
        }
private void Table_OnCellPointerPressed(object? sender, DataGridCellPointerPressedEventArgs e)
        {
            // only for the SplitLength column
            if (e.Column is DataGridTextColumn textColumn &&
                textColumn.Tag?.ToString() == "SplitLength")
            {
                // i guess i need to do something here?
            }
        }
3 Replies
Dev_Persi
Dev_Persi•3d ago
Suchacoolguy
SuchacoolguyOP•2d ago
hey, Thanks for the comment! It works perfectly now. :blushowo: 
private void Table_OnCellPointerPressed(object? sender, DataGridCellPointerPressedEventArgs e)
{
    if (e.Column is DataGridTextColumn col &&
        col.Tag?.ToString() == "SplitLength")
    {
        var grid = this.FindControl<DataGrid>("Table");
        if (grid == null) return;

        grid.SelectedItem = e.Row.DataContext;

        grid.CurrentColumn = e.Column;

        e.Cell.Focus();

        grid.BeginEdit();

        e.PointerPressedEventArgs.Handled = true;
    }
}
private void Table_OnCellPointerPressed(object? sender, DataGridCellPointerPressedEventArgs e)
{
    if (e.Column is DataGridTextColumn col &&
        col.Tag?.ToString() == "SplitLength")
    {
        var grid = this.FindControl<DataGrid>("Table");
        if (grid == null) return;

        grid.SelectedItem = e.Row.DataContext;

        grid.CurrentColumn = e.Column;

        e.Cell.Focus();

        grid.BeginEdit();

        e.PointerPressedEventArgs.Handled = true;
    }
}
MODiX
MODiX•2d ago
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