It is difficult to find a decent color picker control for ASP.NET. However, there are plenty of pure JavaScript color picker controls. I decided to take one of them and convert it into an ASP.NET web server control. As a base, I took the dhtmlgoodies advanced color picker. The base control had been implemented by Viktar Karpach and you can find it from the codeproject ( http://www.codeproject.com/KB/custom-controls/WS_ColorPicker.aspx). But because there are some issues in usage, I had recreated the control and enhanced it by extending the autopostback feature and onColorChanged event handler, which is similiar to the onTextChanged of the TextBox.
Toolkit Demo:
You can fire the ColorChanged Event with the two ways below:
Related Links:
ASP.NET Color Picker Web Server Control
http://www.codeproject.com/KB/custom-controls/WS_ColorPicker.aspx
免费的Asp.net ColorPicker
http://www.cnblogs.com/m2land/archive/2008/09/08/1280708.html