How to display a task in the taskbar when running multiple forms? ? ?

tangfeino1

I have an mdi parent form and N mdi child forms, and I find that no matter how many child forms I run, the taskbar always displays only one task, the parent form. Now I want to place a button on the mdi subform, and press it to make another form appear. I use show now, but after doing so, the form that appears later will also be in the taskbar. Added a new task.
Please ask, how to do it, so that the open form does not create a separate task, just like when the mdi subform is displayed, the taskbar only displays one task of the parent form! !! !!

小草藤

Form.Show (IWin32Window)
How about using this method?

tangfeino1

This will not work, the error is

Warning 1 The file "F:\DEMO\Form1.cs" does not support code analysis or generation because it is not included in the code-supported project.
Error 2 "System.Windows.Forms.IWin32Window" is a "type", but is used here as a "variable"

I don't have form1 in this project. My code inside the button click event is like this

            FrmOut Frm = new FrmOut ();
            Frm.Show (IWin32Window);

tangfeino1

Wait online! !! !!

wenmy715

Set the ShowInTaskbar property of the form you don't want to display in the taskbar to false.

tangfeino1

LS is right, thank you very much! !! !!