金冠招牌app:SilverLight 学习笔记建立Silverlight自定义控件(3)操作控件

在上述自定义控件MySilverButton内部，我们有Rectangle(名为BodyElement)和TextBlock (名为ButtonCaption)两个内部成员，假如要对其操作，我们必要用到 GetTemplateChild 函数来达到目的。

在此，我们以改动TextBlock的Text属性值。加入代码到SimpleButton_M金冠招牌appouseLeftButtonUp事故中

voi金冠招牌appd SimpleButton_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)

{

if (Click != null)

{

Click(this, new RoutedEventArgs());

TextBlock BgTextBlock = (sender as MySilverButton).　 ("ButtonCaption") as TextBlock;

BgTextBlock.Text = "改动显示文本";

}

}

MySilverButton.cs完备代码如下:

using System;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.金冠招牌appWindows.Documents;

using System.Windows.Ink;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

namespace MyDesignButton

{

public class MySilverButton: ContentControl

{

public event RoutedEventHandler Cli金冠招牌appck; //添加Click事故

public MySilverButton()

{

this.DefaultStyleKey = typeof(MySilverButton);

this.MouseLeftButtonUp += new MouseButtonEventHandler(SimpleButton_MouseLeftButtonUp); //添加Click事故

}

//添加Click事故

void SimpleButton_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)

{

if (Click != null)

{

Click(this, new RoutedEventArgs());

TextBlock BgTextBlock = (sender as MySilverButton).　 ("ButtonC金冠招牌appaption") as TextBlock;

BgTextBlock.Text = "改动显示文本";

}

}

}

}

从新天生，并回到MySLbutton项目运行测试，可看到结果。