C# WPF datagrid行标题切换按钮visualstate从代码隐藏更改

在WPF中，我使用datagrid行标题中的一个切换按钮来显示每个父datagrid行作为子datagrid的详细可见性。单击切换按钮时，相应父datagrid行的visualstate将更改为“已选中”状态。它工作正常。但同时，我想使所有其他父datagrid行的visualstate可视状态为“未选中”或“正常”，而无需单击每个切换按钮。我正在使用以下代码。但它不能正常工作。但如果我点击每个切换按钮，那么它的视觉状态会发生适当的变化

private void ToggleButton_Click(object sender, RoutedEventArgs e)
    {            
            DependencyObject obj = (DependencyObject)e.OriginalSource;
            while (!(obj is DataGridRow) && (obj != null))
            {
                obj = VisualTreeHelper.GetParent(obj);
            }
            if (obj is DataGridRow)
            {
          if ((obj as DataGridRow).DetailsVisibility == Visibility.Visible)
                {
                    (obj as DataGridRow).IsSelected = false;
                    (obj as DataGridRow).DetailsVisibility = System.Windows.Visibility.Collapsed;
                }
                else if ((obj as DataGridRow).DetailsVisibility == Visibility.Collapsed)
                {
                    for (int i = 0; i < Data_Grid.Items.Count; i++)
                    {
                        DataGridRow itm = GetDataGridRowitem(i);

                            itm.IsSelected = false;
               itm.DetailsVisibility = System.Windows.Visibility.Collapsed;            

               VisualStateManager.GoToElementState(itm, "Unchecked", true);
                    }
                    DataTemplate dt = FindResource("tocchild") as DataTemplate;
                    Data_Grid.RowDetailsTemplate = dt;
                    (obj as DataGridRow).IsSelected = true;
                    (obj as DataGridRow).DetailsVisibility = Visibility.Visible;                        
                    VisualStateManager.GoToElementState((obj as DataGridRow), "Checked", true);
                }
            }}

请帮帮我。

---

谢谢。

将

数据网格的第一列设置为此

 <DataGridTemplateColumn CellTemplate="{StaticResource ExpandDetails}" Width="30" />

然后像这样创建VisibilityToBooleanConverter

public class VisbilityToBooleanConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return (Visibility)value == Visibility.Visible;
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return (bool)value ? Visibility.Visible : Visibility.Collapsed;
    }
}

试试这个

class VisibilityConverter : IValueConverter

我通过将值切换按钮设置为True和false来解决这个问题

FrameworkElement tb = GetTemplateChildByName(row, "RowHeaderToggleButton");
                    (tb as ToggleButton).IsChecked = false;

GetTemplateChildByName所在的位置

public static FrameworkElement GetTemplateChildByName(DependencyObject parent, string name)
{
    int childnum = VisualTreeHelper.GetChildrenCount(parent);
    for (int i = 0; i < childnum; i++)
    {
        var child = VisualTreeHelper.GetChild(parent, i);
        if (child is FrameworkElement &&

        ((FrameworkElement)child).Name == name)
        {
            return child as FrameworkElement;
        }
        else
        {
            var s = GetTemplateChildByName(child, name);
            if (s != null)
                return s;
        }
    }
    return null;
}

公共静态FrameworkElement GetTemplateChildByName（DependencyObject父对象，字符串名称）
{
int childnum=VisualTreeHelper.GetChildrenCount（父级）；
for（int i=0；i

谢谢大家

FrameworkElement tb = GetTemplateChildByName(row, "RowHeaderToggleButton");
                    (tb as ToggleButton).IsChecked = false;

public static FrameworkElement GetTemplateChildByName(DependencyObject parent, string name)
{
    int childnum = VisualTreeHelper.GetChildrenCount(parent);
    for (int i = 0; i < childnum; i++)
    {
        var child = VisualTreeHelper.GetChild(parent, i);
        if (child is FrameworkElement &&

        ((FrameworkElement)child).Name == name)
        {
            return child as FrameworkElement;
        }
        else
        {
            var s = GetTemplateChildByName(child, name);
            if (s != null)
                return s;
        }
    }
    return null;
}