SilverLight学习笔记--如何解决Button不响应MouseLeftButtonDown与MouseLeftButtonUp事件的问题
在Silverlight 2 中的按钮不能响应MouseLeftButtonDown 和 MouseLeftButtonUp 事件，为解决此问题，我们可通过创建自定义按钮控件加以解决，
1、创建自定义按钮控件，参见"SilverLigth学习笔记--如何在Silverlight中创建自定义Button控件"一文。
2、创建新项目，在新项目中引用前面创建的MyButton自定义按钮(即引入MyButton.dll)。并在xaml文件头部中加入如下代码?:
xmlns:myContron="clr-namespace:MyButton;assembly=MyButton"
3、添加一个自定义按钮和两个TextBlock控件,添加后的完整代码如下:
<UserControl x:Class="ButtonMouseLeftClick.Page"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:myContron="clr-namespace:MyButton;assembly=MyButton"
Width="400" Height="300">
<Canvas Width="300" Height="400" Background="Coral">
<myContron:MyButton Width="200" Height="50" Canvas.Top="50" Canvas.Left="50" Content="Click Me"
MouseLeftButtonDown="MyButton_MouseLeftButtonDown" MouseLeftButtonUp="MyButton_MouseLeftButtonUp" >
</myContron:MyButton>
<TextBlock x:Name="TextBlock1" Width="80" Height="20" Canvas.Top="140" Canvas.Left="80" Text="TextBlock1"></TextBlock>
<TextBlock x:Name="TextBlock2" Width="80" Height="20" Canvas.Top="180" Canvas.Left="80" Text="TextBlock2"></TextBlock>
</Canvas>
</UserControl>
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:myContron="clr-namespace:MyButton;assembly=MyButton"
Width="400" Height="300">
<Canvas Width="300" Height="400" Background="Coral">
<myContron:MyButton Width="200" Height="50" Canvas.Top="50" Canvas.Left="50" Content="Click Me"
MouseLeftButtonDown="MyButton_MouseLeftButtonDown" MouseLeftButtonUp="MyButton_MouseLeftButtonUp" >
</myContron:MyButton>
<TextBlock x:Name="TextBlock1" Width="80" Height="20" Canvas.Top="140" Canvas.Left="80" Text="TextBlock1"></TextBlock>
<TextBlock x:Name="TextBlock2" Width="80" Height="20" Canvas.Top="180" Canvas.Left="80" Text="TextBlock2"></TextBlock>
</Canvas>
</UserControl>
4、添加后台处理代码
private void MyButton_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
this.TextBlock2.Text = String.Empty;
this.TextBlock1.Text = "Down";
}
private void MyButton_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
this.TextBlock1.Text = "Up"
}
{
this.TextBlock2.Text = String.Empty;
this.TextBlock1.Text = "Down";
}
private void MyButton_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
this.TextBlock1.Text = "Up"
}
5、生成项目运行即可看到结果
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