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Can anyone point me to a good implementation of a basic Windows Forms TextBox that will initially show watermark text that disappears when the cursor enters it? I think I can create my own with some creative use of Enter and Leave events, but I'm sure there's a perfectly usable implementation sitting around somewhere. I saw the WPF implementation and if necessary I could nest it, but a native WinForms TextBox derivative would be better. I have this so far; haven't tried it yet but does anyone see any glaring problems? public class WatermarkTextBox:TextBox { public string WatermarkText { get; set; } public Color WatermarkColor { get; set; } private Color TextColor { get; set; } private bool isInTransition; public WatermarkTextBox() { WatermarkColor = SystemColors.GrayText; } private bool HasText { get { return Text.IsNotNullOrBlankOr(WatermarkText); }} protected override void OnEnter(EventArgs e) { base.OnEnter(e); if (HasText) return; isInTransition = true; ForeColor = TextColor; Text = String.Empty; isInTransition = false; } protected override void OnForeColorChanged(EventArgs e) { base.OnForeColorChanged(e); if (!isInTransition) //the change came from outside TextColor = ForeColor; } protected override void OnLeave(EventArgs e) { base.OnLeave(e); if (HasText) return; isInTransition = true; ForeColor = WatermarkColor; Text = WatermarkText.EmptyIfNull(); isInTransition = false; } } EDIT: The above would have eventually worked with some finessing, but the CueProvider worked much better. Here's my final implementation: public class WatermarkTextBox:TextBox { private string watermarkText; public string WatermarkText { get { return watermarkText; } set {

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