从网格控件中删除特定类型的子项

这是我的代码:

 int intTotalChildren = grdGrid.Children.Count-1;
            for (int intCounter = intTotalChildren; intCounter > 0; intCounter--)
            {
                if (grdGrid.Children[intCounter].GetType() == typeof(Border))
                {
                    Border ucCurrentChild = (Border)grdGrid.Children[intCounter];
                    grdGrid.Children.Remove(ucCurrentChild);
                }                
            }

我的错误是每次我使用 Children.Count 在 for 每次我移走一个孩子, 孩子们。数数 已更改,但并非所有子项都已删除。

好吧,你可以走 VisualTree 移除任何类型的 Border .

static public void RemoveVisual(Visual myVisual)
{
    for (int i = 0; i < VisualTreeHelper.GetChildrenCount(myVisual); i++)
    {
        Visual childVisual = (Visual)VisualTreeHelper.GetChild(myVisual, i);

        if(childVisual.GetType() == typeof(Border))
        {
            // Remove Child
        }

        // Enumerate children of the child visual object.
        RemoveVisual(childVisual);
    }
}

删除由您决定,但上面的操作应该在该类型的可视范围内找到所有控件 边界 .

试试这个,grd是网格控件

    <Grid x:Name="grd">
    <Border x:Name="test1" Margin="5"
            Background="red"
            BorderBrush="Black"
            BorderThickness="5"></Border>
    <Button VerticalAlignment="Bottom" Content="Hello" Click="test"></Button>
</Grid> 

        for(int i=0; i< VisualTreeHelper.GetChildrenCount(grd);i++){
Visual childVisual = (Visual)VisualTreeHelper.GetChild(grd, i);
if (childVisual is Border)
{
    grd.Children.Remove((UIElement)  childVisual);
}

这是我删除网格子集合中所有边框控件的解决方案

    int indice = 0;
    int childrens = TargetGrid.Children.Count;
    for (int i = 0; i < childrens; i++)
    {
        Border brd = TargetGrid.Children[indice] as Border;
        if (brd != null)
        {
            //Remove children
            TargetGrid.Children.RemoveAt(indice);
        }
        else
        {
            indice++;
        }
    }