What is WPF? WPF (Windows Presentation foundation) is a graphical subsystem for displaying user interfaces, documents, images, movies etc in windows application. What is the need of WPF when we had windows forms? Hide Copy Code Remember: - ABCDEFG
Today I encountered an issue with the WPF standard CombBox where if the bound ItemsSource (collection) of a ComboBox has changed the binding on the SelectedItem of the ComboBox will fail to update to the already properly set view model property. For
原文:WPF中Image控件的Source属性 imgBook 是一个Image控件,在后台代码中我想给它指定Source的属性.我先如下方式进行: Uri uri = new Uri(strImagePath, UriKind.RelativeOrAbsolute); imgBook.Source = new BitmapImage(uri); strImagePath是图片的绝对路径. 在另一处代码中我想把strImagePath指定的图片删掉,操作如下: if (System.IO.Fil
1.直接关联到文件,关联后不能删除此图片,因为图片正在使用. imageEditImage.Source = new BitmapImage(new Uri(strImagePath, UriKind.Absolute));//strImagePath 就绝对路径 2.转成二进制,与图片原文件脱离 var img = new BitmapImage(); img.BeginInit(); img.StreamSource = new MemoryStream(File.ReadAllBytes(