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我有下面的代码打开一个对话框,向用户指示应用程序正在另一个线程中处理,然后一旦它接收到LoadCompletedEvent就会关闭窗口。但是,我总是得到以下错误,并不确定它指的是什么。WPF System.Reflection.TargetParameterCountException参数计数不匹配
An unhandled exception of type 'System.Reflection.TargetParameterCountException' occurred in PresentationFramework.dll
Additional information: Parameter count mismatch.
这就是如何创建线程。
Thread thread = new Thread(() =>
{
MetroProgressWindow metroProgressWindow = new MetroProgressWindow(this);
metroProgressWindow.ShowDialog();
});
thread.SetApartmentState(ApartmentState.STA);
//thread.IsBackground = true;
thread.Name = "omega-thread";
thread.Start();
// create window, do loading, business logic, etc
// throw load completed event
LoadCompletedEvent(this, EventArgs.Empty);
Visibility = Visibility.Hidden; // hide MainWindow
renderWindow.ShowDialog(); // show the RenderWindow as a modal dialog NOTE: this is thread blocking
然后在其他窗口中的代码看起来像这样。
public partial class MetroProgressWindow : MetroWindow
{
public MetroProgressWindow(IOmegaWindow window)
{
InitializeComponent();
window.LoadCompletedEvent += delegate
{
Dispatcher.BeginInvoke(DispatcherPriority.Normal,
new Action(() => { this.Close(); }),
null);
};
}
}
我假设,你正在使用MahApps? – lokusking
我正在使用MahApps。新对象[2]不起作用,但是当进行进一步调试时,它在metroProgressWindow.ShowDialog()上失败。其中不包含任何参数 – jkratz55
ShowDialog不接受任何参数的事实完全不相关:它激活了窗口的逻辑,问题在于Action没有参数。 –