Silverlight 如何为ICommand设置EventArg?
在VM中,将ICommand设置为:Silverlight 如何为ICommand设置EventArg?,silverlight,silverlight-4.0,viewmodel,icommand,Silverlight,Silverlight 4.0,Viewmodel,Icommand,在VM中,将ICommand设置为: private RelayCommand<EventArgs> _myCommand = null; public RelayCommand<EventArgs> MyCommand { get { if (_myCommand == null) { _myCommand = new RelayComma
private RelayCommand<EventArgs> _myCommand = null;
public RelayCommand<EventArgs> MyCommand
{
get
{
if (_myCommand == null)
{
_myCommand = new RelayCommand<EventArgs>((e) =>
{
//....
}
);
}
return _myCommand;
}
}
private RelayCommand\u myCommand=null;
公共关系命令MyCommand
{
得到
{
如果(_myCommand==null)
{
_myCommand=新中继命令((e)=>
{
//....
}
);
}
返回_myCommand;
}
}
在xaml中,绑定到此命令
<Button Content="Test Command" Margin="2,0,2,0" Command="{Binding Path=MyCommand}" CommandParameter="{Binding ElementName=InputTextBox, Path=Text}" />
然后运行应用程序。它表示无法将字符串转换为EventArgs
如何为ICommand绑定设置EventArgs?我不熟悉
RelayCommand
我只见过RelayCommand
然而,
RelayCommand
似乎不可能有用。我想您至少需要RelayCommand
谢谢。是的,我试着用RelayCommand解决这个问题。看起来不错。