Hello Ragamoffyn。

添加
UserControl 您将创建它的新实例，设置任何必要的属性，然后将其添加到容器中。 像这样......

使用System.Windows; 

名称空间WpfApplication4 
 {
公共部分类MainWindow：Window 
 {
 public MainWindow（）
 {
 this.InitializeComponent （）; 
} 

 private void myButton_Click（object sender，System.Windows.RoutedEventArgs e）
 {
 //在此示例中，每次单击按钮时都会添加对myGrid的控制。 
 //所以你可能想要在添加它之前清除网格的子节点。 
 myGrid.Children.Clear（）; 

 //创建一个新的控件实例。 
 myUserControl uc = new myUserControl（）; 

 //如果需要，设置控件的属性。 
 uc.Width = uc.Height = 300; 
 uc.Horizo​​ntalAlignment = Horizo​​ntalAlignment.Center; 
 uc.VerticalAlignment = VerticalAlignment.Center; 

 //添加控件。 
 myGrid.Children.Add（uc）; 
} 
} 
} 

MainWindow的XAML ...

< Window 
 xmlns =" http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
 xmlns：x =" http://schemas.microsoft.com/winfx/2006/xaml" 
 x：Class =" WpfApplication4.MainWindow" 
 x：Name =" Window" 
 Title =" MainWindow" 
 Width =" 640"高度= QUOT; 480&QUOT;&GT; 

<网格x：名称=" LayoutRoot"> 
< Button x：Name =" myButton"含量=&QUOT;按钮和QUOT;的Horizo​​ntalAlignment = QUOT;左&QUOT; VerticalAlignment = QUOT;陀螺&QUOT;宽度= QUOT; 75&QUOT;点击= QUOT; myButton_Click&QUOT; /&GT; 
< Grid x：Name =" myGrid"余量= QUOT; 79,0,0,0&QUOT; /&GT; 
< / Grid> 
< / Window> 

希望能让你入门。

~Christine

Hi, all. A bit new to Blend here.

I'm trying to figure out how to add an instance of a UserControl during runtime in response to some event -- for example, clicking a button to produce an instance of some other control. Unfortunately, I can't find examples showing me how to do that, nor can I find any relevant documentation. The closest thing I've found is some short reference in this forum to an ".add" method, but I haven't been able to find any info on how to use that method.

Could one of you perhaps point me toward an example of such activity that I could reverse engineer, or maybe some documentation? Or if you have time and interest, some quick instructions...?

Thanks much for any help.

Hello Ragamoffyn.

To add a UserControl you would create a new instance of it, set any necessary properties, and then add it to a container.  Like so...

using System.Windows;

namespace WpfApplication4
{
	public partial class MainWindow : Window
	{
		public MainWindow()
		{
			this.InitializeComponent();
		}

		private void myButton_Click(object sender, System.Windows.RoutedEventArgs e)
		{
			//In this example every time you click the button it will add the control to myGrid.
			//So you may want to clear the grid's children before adding it.
			myGrid.Children.Clear();
			
			//Create a new instance of the control.
			myUserControl uc = new myUserControl();
			
			//Set properties for the control if needed.
			uc.Width = uc.Height = 300;
			uc.HorizontalAlignment = HorizontalAlignment.Center;
			uc.VerticalAlignment = VerticalAlignment.Center;
			
			//Add the control.
			myGrid.Children.Add(uc);
		}
	}
}

And the XAML for the MainWindow...

<Window
	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	x:Class="WpfApplication4.MainWindow"
	x:Name="Window"
	Title="MainWindow"
	Width="640" Height="480">

	<Grid x:Name="LayoutRoot">
		<Button x:Name="myButton" Content="Button" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Click="myButton_Click"/>
		<Grid x:Name="myGrid" Margin="79,0,0,0"/>
	</Grid>
</Window>

Hope that gets you started.

~Christine