I have a WPF application and am suddenly getting the error Value cannot be null. Parameter name: hostNameOrAddress With this error the program will still run. When I remove the datacontext from the window this error goes away. In this window my datacontext is my MainViewModel. I tried r...
在MainWindows.xaml上设置IsDesignTimeCreatable=True可以解决这个问题，尽管在实现视图模型的无参数构造函数...
I find a bug in your u201CCrystal Reports for Visual Studio 2010u201D. When I use CrystalReportsViewer in our WPF application a get this exception: Value cannot be null. Parameter name: window System.ArgumentNullException was unhandled Message=Value cannot be null. Parameter name: window Sour...
Simple WiFi Bug? Value cannot be null. (Parameter 'stream') Now available on Stack Overflow for Teams!AI features where you work: search, IDE, and chat. Learn more Explore Teams Asked2 years, 2 months ago Modified1 year, 4 months ago...
Exception Info: System.ArgumentNullException: Value cannot be null. (Parameter 'element') at System.Windows.Controls.ToolTipService.GetBetweenShowDelay(DependencyObject element) at System.Windows.Controls.PopupControlService.CloseToolTip(ToolTip tooltip) at System.Windows.Controls.PopupControlService.OnPost...
Binding value to Converter Parameter Binding WPF Datagrid's row color to a variable property of an item inside an observable collection Binding-Array-XAML Bitmap<->BitmapImage conversion BitmapImage from Embedded Resource BitmapImage Memory Leak BitMapImage's Height and Width differs from PixelHeigh...
上一篇介绍了xaml基本知识，我们已经知道了WPF简单的语法。那么接下来，我们要认识一下WPF的布局容器。
cannot set name attribute value when using a container control Cannot set Owner property to a Window that has not been shown previously - error Cannot set Visibility or call Show or ShowDialog after window has closed. cant detect enter key or space key in wpf, c# , visual studio? Canvas -...
add{this._canExecuteChanged+=value;} remove{this._canExecuteChanged-=value;} } protectedvirtualvoidOnCanExecuteChanged() { if(this._canExecuteChanged!=null) this._canExecuteChanged(this,EventArgs.Empty); } publicvoidExecute(objectparameter)
Binding value to Converter Parameter Binding WPF Datagrid's row color to a variable property of an item inside an observable collection Binding-Array-XAML Bitmap<->BitmapImage conversion BitmapImage from Embedded Resource BitmapImage Memory Leak BitMapImage's Height and Width differs from PixelHeigh...