WatermarkTextBox.WatermarkTextBox C# (CSharp) Method

        public WatermarkTextBox()
        {
            this._watermarkActive = true;
            this.Text = _watermarkText;
            this.ForeColor = Color.Gray;
            GotFocus += (source, e) =>
            {
                RemoveWatermak();
            };
            LostFocus += (source, e) =>
            {
                ApplyWatermark();
            };
            
        }
        /// <summary>