I have three simple interfaces Windows form. I want to send a value from the third interface it appears in the second interface .Where the second interface remains open, which is the main, and the third sub-interface is closed . The windows are opened in order from 1 to 3. Where I want the following: that the label appears on the second interface and a value is added to it.
I tried the following code and nothing works؟؟.
MAIN FORM2 = new MAIN();
FORM2.LAB_A.Visible = true;
FORM2.LAB_A.Text = DATATABLA.Rows.Count.ToString();