Adding ToolTip text on Combox box item in csharp

To add tooltip text in each item of combo box write following code in selectedIndex change event

Suppose cboReason  is a Combox box control.

if (cboReason.Items.Count > 0)

            {

                ToolTip tp = new ToolTip();

                tp.SetToolTip(cboReason, cboReason.Text);

                tp.AutoPopDelay = 5000;

                tp.InitialDelay = 1000;

                tp.ReshowDelay = 500;

                tp.ShowAlways = true;

            }