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How to: Add an Element Dynamically

.NET Framework 4

This example shows how to add a Button element to a StackPanel by using the Add method of the Children property.

The following Extensible Application Markup Language (XAML) example creates a TabControl. When a user clicks the Add Control tab, a MouseLeftButtonDown event handler, AddButton, which is written in code, clears any existing controls and adds a new button.

Example

XAML

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<TabControl>
<TabItem MouseLeftButtonUp="AddButton">
<TabItem.Header>Add Control</TabItem.Header>
</TabItem>

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		void AddButton(object sender, MouseButtonEventArgs e)
		{
			sp1.Children.Clear();
			btn = new Button();
			btn.Content = "New Button";
			sp1.Children.Add(btn);
		}

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Private Sub AddButton(ByVal sender As Object, ByVal e As MouseButtonEventArgs)
    sp1.Children.Clear()
    btn = New Button()
    btn.Content = "New Button"
    sp1.Children.Add(btn)
End Sub

Reference

UIElementCollection

UIElement

Concepts

Panels Overview

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