Error message dialog box

[Anonymous]

I know the general message dialog box, I can achieve by the following code

    Application.ShowAlertDialog (Message);

But I want to use the error message dialog box, there is a small red cross in the dialog box, is there anyone know which class is it?

Thanks very much

[SENL1362]

MessageBox.Show("MessageToShow","Title",MessageBoxButton.OKCancel,MessageBoxImage.Error)

[Anonymous]

uh.I just use C#, and program for AutoCAD

the System is't include the Windows...

Is that mean I need reference some dll?

[SENL1362 · Accepted solution]

Probably PresentationFramework.dll (and PresentationCore.dll)

[Anonymous]

It's need to reference System.Windows.Forms.dll

Then using System.Windows.Froms namespace

Last, write the following code.

MessageBox.Show("hello", "Caption...",MessageBoxButtons.OK,MessageBoxIcon.Error);

Very thanks.