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Editorial Team
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Asked: 2026-05-31T18:37:24+00:00

There’s this very simple bit a code <asp:TextBox ID=txbVipNumber runat=server /> <asp:TextBoxWatermarkExtender ID=tbweVipNumber runat=server

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There’s this very simple bit a code 

<asp:TextBox ID="txbVipNumber" runat="server" />
<asp:TextBoxWatermarkExtender ID="tbweVipNumber" runat="server" 
    WatermarkText="VIP number" TargetControlID="txbVipNumber"
    WatermarkCssClass="watermark">
</asp:TextBoxWatermarkExtender>

And there is no watermark in my textbox when i look at the page.

How come it doesn’t work?

EDIT: added css

.watermark {
    color:Gray;
    font-size:smaller;
    font-style:italic;
}
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1 Answer

  1. Editorial Team

    Found the solution. Thanks for remembering me about Firebug and the javascript error console. Feels stupid right now. And so i found that there were some javascript error, one in perticular that said that i should use “ToolkitScriptManager” instead of “ScriptManager”. Solved everything. Thanks again

    P.S. It’s sad there is no way to mark a question as answered if there is no answer. That would be usefull for self-answered questions.

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