带有DatePicker的DataGridTemplateColumn需要三次单击才能编辑日期

Question

我有一个DataGridTemplateColumn.在它里面CellEditingTemplate,我放了一个DatePicker控件.现在,如果我想编辑日期,我必须单击三次才能DatePicker开始编辑.有人可以告诉我如何DatePicker只需点击两下就可以进入编辑模式吗？此外,如果DataGridTemplateColumn集中注意力,键盘输入也不会DatePicker进入编辑模式.如果它也可以修复它会很好.

Answer 1

您必须按如下方式覆盖PrepareCellForEditin DataGridTemplateColumn:

public class DataGridDateColumn:DataGridTemplateColumn
{
    protected override object PrepareCellForEdit(FrameworkElement editingElement,
                                                 RoutedEventArgs editingEventArgs)
    {
        editingElement.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
        return base.PrepareCellForEdit(editingElement, editingEventArgs);
    } 
}

XAML

<Custom:DataGrid x:Name="dgData" SelectionUnit="Cell" AutoGenerateColumns="False" CanUserAddRows="False">
    <Custom:DataGrid.Columns>
        <Custom:DataGridTextColumn Binding="{Binding Subject}" Header="Subject" Width="*"/>
        <Custom:DataGridTextColumn Binding="{Binding RaisedBy}" Header="Raised By" Width="100"/>

        <DatePickerDGWPF:DataGridDateColumn Header="Raised On" Width="250">
            <DatePickerDGWPF:DataGridDateColumn.CellTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding RaisedOn}" />
                </DataTemplate>
            </DatePickerDGWPF:DataGridDateColumn.CellTemplate>
            <DatePickerDGWPF:DataGridDateColumn.CellEditingTemplate>
                <DataTemplate>
                    <Custom:DatePicker SelectedDate="{Binding RaisedOn}"/>       
                </DataTemplate>
            </DatePickerDGWPF:DataGridDateColumn.CellEditingTemplate>
        </DatePickerDGWPF:DataGridDateColumn>
    </Custom:DataGrid.Columns>
</Custom:DataGrid>