Question

我有silverlight应用程序，其中我添加了一个切换按钮以扩展row.at同时我有2个文本框和1个按钮在同一行。我切换按钮工作正常，但当我点击文本框或按钮行得到扩展这应该不会发生。必须在切换按钮上单击才能展开.plz指导我，我错了。 我的切换按钮添加如下 .xaml

<data:DataGridTemplateColumn.CellTemplate>
      <DataTemplate>
             <ToggleButton Style="{StaticResource PlusMinusToggleButtonStyle}"    Loaded="ToggleButton_Loaded" />
       </DataTemplate>
</data:DataGridTemplateColumn.CellTemplate>

和.cs代码如下

 private void ToggleButton_Loaded(object sender, RoutedEventArgs e)
        {
            ToggleButton button = sender as ToggleButton;
            DataGridRow row = button.FindAncestor<DataGridRow>();  //Custom Extension
            row.SetBinding(DataGridRow.DetailsVisibilityProperty, new System.Windows.Data.Binding()
            {
                Source = button,
                Path = new PropertyPath("IsChecked"),
                Converter = new VisibilityConverter(),
                Mode = BindingMode.TwoWay
            });
    }

和接口IValueConverter实现如下

public class VisibilityConverter : IValueConverter
    {

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if ((bool)value) return Visibility.Visible;
            else return Visibility.Collapsed;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if ((Visibility)value == Visibility.Visible)
                return true;
            else return false;

        }
    }

我需要在convert和ConvertBack检查什么条件。如何检查点击的对象是切换按钮而不是其他按钮

Answer 1

您可以在ToggleButton_clicked事件中编写为ToggleButton_Loaded事件编写的相同代码，然后您不必检查单击哪个按钮或textBox。

<ToggleButton Style="{StaticResource PlusMinusToggleButtonStyle}"    Click="ToggleButton_Clicked" />

.cs代码为

private void ToggleButton_Clicked(object sender, RoutedEventArgs e)
        {
            ToggleButton button = sender as ToggleButton;
            DataGridRow row = button.FindAncestor<DataGridRow>();  //Custom Extension
            row.SetBinding(DataGridRow.DetailsVisibilityProperty, new System.Windows.Data.Binding()
            {
                Source = button,
                Path = new PropertyPath("IsChecked"),
                Converter = new VisibilityConverter(),
                Mode = BindingMode.TwoWay
            });
    }