English 中文(简体)
在试图打开新窗口时投弃的无效行动
原标题:InvalidOperationException thrown while trying to open new Window
  • 时间:2010-11-25 07:20:56
  •  标签:
  • wpf
  • c#-3.0

我在这项WPF申请中,Ninaigation Window在校方登记了一些其他班子的活动:

SomeClass obj = new SomeClass(); 
obj.SomeEvent += new EventHandler(SomeEventHandler);

在活动Handler方法中,我试图展示另一个窗口,例如:

SomeWindow window = new SomeWindow();
window.ShowDialog();

但是,在设定新目标的同时,上述例外被推翻。 谁能告诉我,可能的问题是什么,我如何解决?

请注意,有些寡妇来自该制度。 仅靠窗户。

最佳回答

如同在法国宇宙航行局的面目中正在提出的那场事件一样,你需要在创建窗户之前将活动拖到国歌。 这可能像把你的活动手法改为:

Action action = () => {
    SomeWindow window = new SomeWindow();
    window.ShowDialog();
};
Dispatcher.BeginInvoke(action);
问题回答

暂无回答




相关问题
WPF convert 2d mouse click into 3d space

I have several geometry meshes in my Viewport3D, these have bounds of (w:1800, h:500, d:25). When a user clicks in the middle of the mesh, I want the Point3D of (900, 500, 25)... How can I achieve ...

Editing a xaml icons or images

Is it possible to edit a xaml icons or images in the expression design or using other tools? Is it possible to import a xaml images (that e.g you have exported) in the expression designer for editing?...

WPF: writing smoke tests using ViewModels

I am considering to write smoke tests for our WPF application. The question that I am faced is: should we use UI automation( or some other technology that creates a UI script), or is it good enough to ...

WPF - MVVM - NHibernate Validation

Im facing a bit of an issue when trying to validate a decimal property on domain object which is bound to a textbox on the view through the viewmodel. I am using NHibernate to decorate my property on ...

How do WPF Markup Extensions raise compile errors?

Certain markup extensions raise compile errors. For example StaticExtension (x:Static) raises a compile error if the referenced class cannot be found. Anyone know the mechanism for this? Is it baked ...

WPF design-time context menu

I am trying to create a custom wpf control, I m wondering how I can add some design-time features. I ve googled and can t seem to get to my goal. So here s my simple question, how can I add an entry ...

How to combine DataTrigger and EventTrigger?

NOTE I have asked the related question (with an accepted answer): How to combine DataTrigger and Trigger? I think I need to combine an EventTrigger and a DataTrigger to achieve what I m after: when ...

热门标签