Mdi Child to normal form and vice versa

S

subramaninan

Newcomer
Joined
Dec 4, 2008
Messages
1
Hi Friends

I'm a beginner to .NET C#, and i'm working in a project where my first MDI Child opens a normal form which is not a child form and get a value in that and returns it to the second MDI Child form.

The Flow is
Parent(Form 1) --> Child 1(Form 2) ---> Form 3 ----> Child 2(Form 4)

I'm struck'd in third level of opening the child 2 form in MDI container from From 3.

I tried with the below code in the Form3 button click event and get an exception.

Form4 sr = new Form4(text);
sr.MdiParent = Form1.ActiveForm;
sr.Show();

And the error was

Form that was specified to be the MdiParent for this form is not an MdiContainer.
Parameter name: value

Plz help in getting out from this.

Thanks in advance
Subramanian.K.S
 
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