Windows Forms ToolTip will not re-appear after first use

Question

I have a Windows Forms C# application where I would like to use a tooltip on one of the text boxes. I initialize the tool-tip in the constructor of the Form class, and it wo

Answer 1

I just had the the problem on Windows 7 so I found this thread.

In my case this did not work in tooltip_MouseEnter:

tooltip.Active = false;
tooltip.Active = true;

So I tried the following:

this.toolTip.SetToolTip(this.txtbx1, "tooltip-text");

This worked fine for me.