adding two texboxes of values different forms and displaying in another textbox in second form

Question

hi friends i have created one form having maximum leaves (label and text box) and another form having lives taken (label and text box ) now i want to subtract of two forms( maximum leaves and leaves taken) and to display remaining leaves left in another text box of second form thanks

Vulpes · Answer

First change the Modifiers property in the Properties Box of the TextBox (say textBox1) on the first form (Form1 say) from private to internal. It's assumed that the TextBoxes on the second form are called textBox1 and textBox2. Now put this code in textbox1's Leave event handler on the second form (add the skeleton handler from the Properties Box): private button1_Click (object sender EventArgs e) { Form1 f1 = (Form1)Appplication.OpenForms[Form1]; int maximumLeaves takenLeaves; int.TryParse(f1.textBox1 out maximumLeaves); int.TryParse(this.textBox1 out takenLeaves); int remainingLeaves = maximumLeaves - takenLeaves; if (remainingLeaves this.textBox2.Text = remainingLeaves.ToString(); }