我有一个包含下面的代码我generic.xaml:如何从实现页面访问自定义控件中存在的按钮?
<ControlTemplate TargetType="local:customVideoControl">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="600"/>
<RowDefinition Height="200"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200"/>
<ColumnDefinition Width="200"/>
<ColumnDefinition Width="200"/>
</Grid.ColumnDefinitions>
<MediaElement x:Name="customMediaPlayer" Source="{TemplateBinding CustomMediaSource}"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Height="{TemplateBinding Height}"
Width="{TemplateBinding Width}"
Grid.Row="0" Grid.ColumnSpan="3"
/>
<ToggleButton x:Name="playPauseBtn" Height="50" Width="50" Content="Pause" Grid.Row="1" Grid.Column="0"/>
<Button x:Name="prevBtn" Height="50" Width="50" Content="Prev" Grid.Row="1" Grid.Column="1"/>
<Button x:Name="nextBtn" Height="50" Width="50" Content="Next" Grid.Row="1" Grid.Column="2"/>
</Grid>
</ControlTemplate>
现在就ApplyTemplate在,我访问控制象下面这样:
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
ToggleButton playPauseBtn = GetTemplateChild("playPauseBtn") as ToggleButton;
Button prevBtn= GetTemplateChild("prevBtn") as Button;
Button nextBtn = GetTemplateChild("nextBtn") as Button;
MediaElement customMediaPlayer = GetTemplateChild("customMediaPlayer") as MediaElement;
playPauseBtn.Checked += (obj, Args) =>
{
customMediaPlayer.Pause();
playPauseBtn.Content = "Play";
};
playPauseBtn.Unchecked += (obj, Args) =>
{
customMediaPlayer.Play();
playPauseBtn.Content = "Pause";
};
nextBtn.Click += (obj, Args) =>
{
customMediaPlayer.Source=new Uri(CustomMediaSource.ToString(),UriKind.RelativeOrAbsolute);
};
prevBtn.Click += (obj, Args) =>
{
customMediaPlayer.Source = new Uri(CustomMediaSource.ToString(), UriKind.RelativeOrAbsolute);
};
}
现在我想acccess的nextBtn,在页面里我喜欢落实
CustomVideoControl myVControl=new CustomVideoControl();
这将创建控件的实例,但我想要做的事就点击next和previous按钮,thta存在于generic.xaml中的CustomVideoControl内。任何帮助将不胜感激。
感谢, Subhen
它是什么,你想要做什么,为什么是什么不是控制功能,似乎没有一点创建控制,如果你不'将责任移交给控制。 – AnthonyWJones 2010-04-22 11:33:34
我想改变Uri,当我点击按钮时,但uri将在主应用程序中可访问。 有没有一种方法可以声明一个依赖的Eventhandler或其他东西,以便可以在单击主页面上的该按钮时调用它。 – Simsons 2010-04-22 11:45:05