Calling methods from previous form

[Ryu]

I have a form that calls another form....Is there any way to call method in
the old form from the new form?

 

[Joey Calisay]

Either you pass the reference of the old form at the constructor call of the
other form (dirty design that can lead to memory leak) or you use delegates.

 

[Ryu]

Can you give me an example on how to use delegates for this example?

 

[Shishir Kumar Mishra]

Inside Form1.cs file Declare a Delegate like
public delegate void MyDelegate(); // it should be defined outside Form1

then in side Form1
--------------------------------------------------
private void doTest()
{
MessageBox.Show("Hi from Form1");
}

private void Form1_Load(object sender, System.EventArgs e)
{

Form2 frmTest = new Form2();
frmTest.MyDelegate = new MyDelegate(doTest);
frmTest.Show();

}

Inside Form2
-----------------------------------------------------
private MyDelegate testdelegate;

public MyDelegate MyDelegate
{
get
{
return testdelegate;
}
set
{
testdelegate = value;
}
}

private void button1_Click(object sender, System.EventArgs e)
{
testdelegate();

}

HTH
Shishir Kumar Mishra
Manhattan Associates