Calling function in a child window from main parent window
 

Hi all...

This is the case:

I have a main parent window, and a child window inside it.
The parent window consists of a menubar, whereby clicking one of its menu item (mnuSave) is supposed to save the graph drawn inside the child window. The code for saving the graph is done by a method called SaveGraph(). I tried calling the method from the main parent window, but then an error occured saying "TestProg.ChildWin.zedGraphControl1" denotes a 'field' where a 'class' was expected.

The following illustrates better :

Inside parent window (TestProg)

private void mnuSave_Click(object sender, System.EventArgs e)

{

ChildWin selectedView = (ChildWin)this.ActiveMdiChild;

ChildWin.SaveGraph();

}

Inside the child window (ChildWin)

public static void SaveGraph()

{

zedGraphControl1.GraphPane.Image.Save(@"\My Documents\Visual Studio Projects\image.png", System.Drawing.Imaging.ImageFormat.Png);

}

The zedGraphControl1 is one drawing graph control from zedGraph, a useful graph drawing plugin for C#. What should I do in this case?