Question

i create a new form using the code below.

private void CNPictureBox2_DoubleClick(object sender, EventArgs e)
{
    RefImgForm RefImgForm = new RefImgForm();
    RefImgForm.MainFrm = this;
    RefImgForm.Show();
}

I want to send data from the form that i create second form. The problem is that i cannot send data to the new form when creating it. I want to send data when i take some data from user and then send this data by button click event. How can i do that?

Answer 1

Define a new method in second form

public void ReceiveData(....)
{
...
}

and call this from first form on button click

private RefImgForm frm2 = null;
private void CNPictureBox2_DoubleClick(object sender, EventArgs e)
{
    frm2 = new RefImgForm();
    frm2.MainFrm = this;
    frm2.Show();
}
private void Button_Click(...)
{
    if (frm2 != null)
        frm2.ReceiveData(...);
}