Question

I have a program which gives two options through which to test a student’s knowledge of complex numbers. However, I want the content in the tab (labels, textboxes) to be cleared when the tab is changed. Is there a method I can use to do this?

Answer 1

just handle the SelectedIndexChanged event of TabControl and retrieve all the controls within the tab. Now you can loop through controls and do whatever you want with them, like this-

    // SelectedIndexChange Event
    private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
    {
        // Get Selected Tab
        var selectedTab = tabControl1.SelectedTab;

        foreach (Control ctrl in selectedTab.Controls)
        {
            if (ctrl is TextBox)
            {
                (ctrl as TextBox).Text = string.Empty;
            }

            if (ctrl is Label)
            {
                (ctrl as Label).Text = string.Empty;
            }

            // Other Controls....
        }
    }

hope it helps…!!