从Generic.xaml点击按钮？ [英] Click Button from Generic.xaml?

问题描述

我写在Silverlight自定义控件，我有让我按钮的问题点击到Generic.xaml文件。这不起作用：

 < setter属性=模板> 
< Setter.Value> 
<的ControlTemplate的TargetType =本地：ScrollableTabControl> 
<按钮Grid.Row =0Grid.Column =0X：NAME =ScrollLeft点击=scrollLeft>&放大器; LT;< /按钮> 
< /控件模板> 
< /Setter.Value> 
  

ScrollLeft是我的C＃文件。

不过这并不工作之一：

 变种b = this.GetTemplateChild（ScrollLeft）; 
 Debug.Assert的（B！= NULL）; 
  

因为不管我做什么，B总是回来空。我觉得应该有点击的方法分配给该按钮一个简单的方法，所以我在做什么错

编辑：这是我的C＃文件的方法

 公共无效scrollLeft（对象发件人，RoutedEventArgs E）
 {
 // VAR滚动=应用.Current.Resources [TabScroller]作为ScrollViewer中; 
 //scroller.LineLeft（）; 
} 
  

解决方案

您必须重写< STRONG> OnApplyTemplate（）上的自定义控制类（C＃文件）

喜欢这一点。

 公共覆盖无效OnApplyTemplate（）
 {
键BTN = GetTemplateChild（ScrollLeft）作为按钮; 
 Debug.Assert的（BTN！= NULL）; 
} 
  

另外，你必须让在通用控件模板一次机会。 。XAML像下面

 < setter属性=模板> 
< Setter.Value> 
<的ControlTemplate的TargetType ={X：类型本地：CustomControl1}> 
<边框背景={TemplateBinding背景}
 BorderBrush ={TemplateBinding BorderBrush}
了borderThickness ={TemplateBinding了borderThickness}> 
将按钮Grid.Row =0Grid.Column =0×：名称=ScrollLeft>&放大器;所述;&下; /按钮> 
< /边框> 
< /控件模板> 
< /Setter.Value> 
  

注意：我删除Click事件处理程序。

I am writing a custom control in Silverlight and I am having issues getting my Button to click to the Generic.xaml file. This does not work:

    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="local:ScrollableTabControl">
                    <Button Grid.Row="0" Grid.Column="0" x:Name="ScrollLeft" Click="scrollLeft">&lt;</Button>
            </ControlTemplate>
        </Setter.Value>

"ScrollLeft" is in my C# file.

However this does not work either:

        var b = this.GetTemplateChild("ScrollLeft");
        Debug.Assert(b != null);

Because no matter what I do, b always comes back null. I feel like there should be an easy way to assign the click method to this button, so what am I doing wrong?

EDIT: This is the method from my C# file:

    public void scrollLeft(object sender, RoutedEventArgs e)
    {
        //var scroller = Application.Current.Resources["TabScroller"] as ScrollViewer;
        //scroller.LineLeft();
    }

解决方案

You have to override the OnApplyTemplate() on your custom control class (C# File).

Like this.

    public override void OnApplyTemplate()
    {
        Button btn = GetTemplateChild("ScrollLeft") as Button;
        Debug.Assert(btn != null);
    }

Also, you have to make one more change in the control template in Generic.Xaml like below.

<Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type local:CustomControl1}">
                <Border Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}">
                    <Button Grid.Row="0" Grid.Column="0" x:Name="ScrollLeft">&lt;</Button>
                </Border>
            </ControlTemplate>
        </Setter.Value>

Note: I removed the Click event handler.

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