.NET MDI App.

Can someone give me some help here? I have a MDI app. and I can't find the way to access the parent form to retrieve a value (Public variable). I can access the "MDIParent" with all it's properties and methods, but not a local variable. How can you get values stored on the parent from the child forms?
Thanks in advance.

 

You can cast the MDIParent. Say, the MDI container form is called frmMain,
and looks like

public class frmMain : Form
{
private int mVal=0;

public frmMain(...)

//Public property
public int Val
{
get { return mVal; }
}

//Public method
public void DoSomething()
{

}
}

Some where in the child form code, you can

//Cast MDIParent as frmMain
frmMain f=(frmMain)this.MDIParent;

//Then access frmMain's property/method
int myInt=f.Val;
f.DoSomething();

way to access the parent form to retrieve a value (Public variable). I can
access the "MDIParent" with all it's properties and methods, but not a local
variable. How can you get values stored on the parent from the child forms?

 

Thanks for you help. Is that the only way of passing values between parent and child forms?