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Saturday, 26 July 2014

TextBoxWatermark Contol Of AjaxControlToolKit For Displaying Watermark in TextBox In Asp.Net

7/26/2014 - By Pranav Singh 0

Water mask is used for displaying message I a control to user that what he need to enter in it. So in this article I will show you how you can display watermark in a textbox using TextBoxWatermark Contol Of AjaxControlToolKit in asp.net.


So for this article first we will create  a new asp.net application in it’s page we will add a textbox , TextBoxWatermark,  ScriptManager control. Now check the below code.


<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ControlValidationByAjaxControltoolKit.Default" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>TextBoxWatermark Contol Of AjaxControlToolKit For Displaying Watermark in TextBox In Asp.Net</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
   
        Enter Name:<asp:TextBox ID="TextBox1" runat="server" Width="189px"></asp:TextBox>
        <asp:TextBoxWatermarkExtender ID="TextBoxWatermarkExtender1" runat="server" TargetControlID="TextBox1" WatermarkText="Please enter name">
        </asp:TextBoxWatermarkExtender>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
    </div>
    </form>
</body>
</html>

So for displaying the watermark text we have to define the following properties of TextBoxWatermark.

TargetControlID="TextBox1"
 WatermarkText="Please enter name

Now check the propertied of water mark textbox.

  • TargetControlID - The ID of the TextBox to operate on
  • WatermarkText - The text to show when the control has no value
  • WatermarkCssClass - The CSS class to apply to the TextBox when it has no value (e.g. the watermark text is shown).
So we have done


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