Current color (click to the box): Previous color:

This example demonstrates AutoPostBack and PickButton properties use with ColorPostBack event (MS ASP.NET AJAX). Example code <script runat="server" language="c#"> private void Color_CallBack(object sender, ColorPostBackEventArgs e){   color.Style["background-color"] = e.Color;   previous.Style["background-color"] = e.PreviousColor; } </script> ... <obout:ColorPicker runat="server" ID="picker" TargetId="color" TargetProperty="style.backgroundColor"                              OnColorPostBack="Color_CallBack" PickButton="false" AutoPostBack="true" >       <asp:TextBox readOnly="true" id="color" style="cursor: pointer;" runat="server"/> </obout:ColorPicker> Previous color: <asp:TextBox readOnly="true" id="previous" style="width: 40px;" runat="server"/> Download working example Here.

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