This control is used to provide watermark for the textbox Indicating what value to input in the textbox without using a label to provide a caption for the textbox properties. TargetControlID : WatermarkText : Used to specify what is the text to display in textbox as watermark. Watermarkcssclass: Used to specify the cssclass to use to display the watermark. Example The following example demonstrates how to use Textbox water mark extender. Add a page to the website and then take a Toolkitscriptmanager & two textboxes on the page and set ID’s of Textboxes as T1 & T2. Within HTML source of the page within the head section create a css class with the name watermark as follows. <style type=”text/css”> .watermark { font-family : ArialBlack; font-size: large; color: Gray; } </style> Within HTML Source itself drag & drop two textbox watermark extenders and set following properties for that <asp: TextBoxWatermarkExtender ID=”TextBoxWaterMarkExtender” runat=”server” TargetcontrolID=”T1” watermarkText=”userID” watermarkcssclass=”watermark”></asp:Textboxwatermarkextender> <asp:TextBoxWatermarkExtender Id=”TextBoxWaterMarkExtender 2” runat=”server” TargetcontrolID=”T2” watermarkText=”password” watermarkcssclass=”watermark”> </asp:TextBoxWatermarkExtender>
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