showdialog-wpf图像在主窗口中不更改

Question

In my mainWindow bitmap change (set new source) works fine. But if I create a new window with ShowDialog, all changes affects (eg ListView, Textbox values eg) in the Mainwindow.

Bitmap (I set the new source) doesn't. What can I do?

BitmapImage image = new BitmapImage();
image.BeginInit();                    
image.UriSource = new Uri(filename, UriKind.Relative);
image.EndInit();
imgError.Source = null;
imgError.Source = image;

In my MainWindow.xaml I use an image:

<Image x:Name="imgError" PreviewMouseLeftButtonDown="imgError_PreviewMouseLeftButtonDown"  Source="circle_blue_Error.png"  Visibility="Visible"  Width="50" Height="50" Canvas.Left="10" Canvas.Top="28" />

If an error occurs, a TextBox.Text is set with a number. TextBox_Changed Event set imgError to an other image, a ListView(log) becomes new Item. Everything works fine.

When I open a new Window in DialogMode (set some parameters) and an error occures (child window is open) Textbox Value and ListView changes, imgError is set but the UI doesn't change.

SetRoll frmSetRoll = new SetRoll();          

//for positioning
frmSetRoll.wndParent = this;
frmSetRoll.ShowDialog();

Answer 1

我发现了问题，TextBox两次获得了值。