Stop cell to enter edit mode when double clicked

Question

I have a DataGrid. I have an “Edit” button in every row of my DataGrid. When the user clicks on this edit button, each cell of this row goes into edit mode. When I click on any edit button, the template changes to a save button. When I'm done, I click on this save button, and the DataGridRow exits the edit mode, and the "Save" button changes again to the "Edit" button. It works great.

Here is my code:

Xaml:

<DataGrid Grid.Column="1" Grid.Row="3"  AutoGenerateColumns="False" RowHeaderWidth="0" GridLinesVisibility="Vertical"
          ItemsSource="{Binding Source={StaticResource ItemsViewSource}}" SelectedItem="{Binding SelectedItem}"
          CanUserAddRows="False" CanUserDeleteRows="False" CanUserReorderColumns="False"
          SelectionMode="Single" SelectionUnit="FullRow">

    <DataGrid.Columns>

        <DataGridTemplateColumn Header="Name of the Item" Width="*" SortDirection="Ascending">
            <DataGridTemplateColumn.HeaderStyle>
                <Style TargetType="DataGridColumnHeader" BasedOn="{StaticResource {x:Type DataGridColumnHeader}}">
                    <Setter Property="HorizontalContentAlignment" Value="Left"/>
                </Style>
            </DataGridTemplateColumn.HeaderStyle>
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Name}" />
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
            <DataGridTemplateColumn.CellEditingTemplate>
                <DataTemplate>
                    <TextBox Text="{Binding Name, UpdateSourceTrigger=PropertyChanged}" PreviewKeyDown="TextBox_PreviewKeyDown"/>
                </DataTemplate>
            </DataGridTemplateColumn.CellEditingTemplate>
            <DataGridTemplateColumn.CellStyle>
                <Style TargetType="{x:Type DataGridCell}" BasedOn="{StaticResource {x:Type DataGridCell}}">
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type DataGridCell}">
                                <Grid Background="{TemplateBinding Background}">
                                    <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Left" Margin="5,0,0,0" />
                                </Grid>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Style>
            </DataGridTemplateColumn.CellStyle>
        </DataGridTemplateColumn>

        <DataGridTemplateColumn Header="Edit" Width="50" IsReadOnly="True">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <Button Content="Edit" Style="{StaticResource EditSaveButton}"  
                            Command="{Binding DataContext.EditItemCommand, 
                                              RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Page}}}" 
                            Click="EditButton_Click"/>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>

        <DataGridTemplateColumn Header="Delete" Width="70" IsReadOnly="True">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <Button Content="Delete" Style="{StaticResource DeleteButton}"
                            Command="{Binding DataContext.CancelItemEditOrDeleteCommand, 
                                              RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Page}}"/>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>

    </DataGrid.Columns>

</DataGrid>

Background Code (CS):

void EditButton_Click(object sender, RoutedEventArgs e)
{
    int colIndex = 0;
    int rowIndex = 0;

    DependencyObject dep = (DependencyObject)e.OriginalSource;
    while (dep != null && !(dep is DataGridCell))
    {
        dep = VisualTreeHelper.GetParent(dep);
    }

    if (dep == null)
        return;
    DataGridRow row = null;
    if (dep is DataGridCell)
    {

        colIndex = ((DataGridCell)dep).Column.DisplayIndex;

        while (dep != null && !(dep is DataGridRow))
        {
            dep = VisualTreeHelper.GetParent(dep);
        }

        row = (DataGridRow)dep;
        rowIndex = FindRowIndex(row);

    }

    while (dep != null && !(dep is DataGrid))
    {
        dep = VisualTreeHelper.GetParent(dep);
    }

    if (dep == null)
        return;

    DataGrid dg = (DataGrid)dep;
    if (row != null)
    {
        var rows = GetDataGridRows(dg);

        if (row.IsEditing)
        {
            dg.CommitEdit(DataGridEditingUnit.Row, true);

            foreach (DataGridRow r in rows)
            {
                r.IsEnabled = true;
            }
        }
        else
        {
            dg.CurrentCell = new DataGridCellInfo(dg.Items[rowIndex], dg.Columns[0]);
            dg.BeginEdit();

            foreach (DataGridRow r in rows)
            {
                if (!(r.IsEditing))
                {
                    r.IsEnabled = false;
                }
            }
        }
    }
}

public DataGridCell GetDataGridCell(DataGridCellInfo cellInfo)
{
    var cellContent = cellInfo.Column.GetCellContent(cellInfo.Item);
    if (cellContent != null)
        return (DataGridCell)cellContent.Parent;

    return null;
}

private int FindRowIndex(DataGridRow row)
{
    DataGrid dataGrid = ItemsControl.ItemsControlFromItemContainer(row) as DataGrid;

    int index = dataGrid.ItemContainerGenerator.IndexFromContainer(row);

    return index;
}

public IEnumerable<DataGridRow> GetDataGridRows(DataGrid grid)
{
    var itemsSource = grid.ItemsSource as IEnumerable;
    if (null == itemsSource) yield return null;
    foreach (var item in itemsSource)
    {
        var row = grid.ItemContainerGenerator.ContainerFromItem(item) as DataGridRow;
        if (null != row) yield return row;
    }
}

Basically I have 2 questions:

• When I doubleclick a cell, that cell goes into edit mode. I want to stop this behavior as I provide an edit button.
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Answer 1

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Answer 2

-

void Cell_Click(object sender, RoutedEventArgs e){
(...)
e.Handled;
}

.

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