1. Add script to headerĀ
<script type=”text/javascript” src=”http://dotnettricks-abdul.in/Contents/water-mark-1.0.1.js” ></script>
2. Add attribute to textbox
require: For required validation
email: For email validation
<asp:TextBox ID=”txtEmail” runat=”server” water-mark=”Email Id” validate=”required,email”></asp:TextBox>