programming-examples/c-sharp/Others/Find Control With Tag.cs

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2019-11-15 12:59:38 +01:00
Find Control With Tag
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Media;
static class common
{
public static T FindControlWithTag<T>(this DependencyObject parent, string tag) where T : UIElement
{
List<UIElement> elements = new List<UIElement>();
int count = VisualTreeHelper.GetChildrenCount(parent);
if (count > 0)
{
for (int j = 0; j < count; j++)
{
DependencyObject child = VisualTreeHelper.GetChild(parent, j);
if (typeof(FrameworkElement).IsAssignableFrom(child.GetType())
&& ((string)((FrameworkElement)child).Tag == tag))
{
return child as T;
}
var item = FindControlWithTag<T>(child, tag);
if (item != null) return item as T;
}
}
return null;
}
}