CUSTOM VALIDATION
The CustomValidator control allows writing application specific custom validation routines for both the client side and the server side validation.
CustomValidator
1.Server Side
2.Client Side.
DEMO
The client side validation is accomplished through the ClientValidationFunction property. The client side validation routine should be written in a scripting language, like JavaScript or VBScript, which the browser can understand.
It doesn't come with a predefined way of working; you write the code for validating your self.
First - Add New -WebForm - Select Labels & Button & Textboxs - Next - Add Custom Validation From Validation ToolBox
Next - Add the Property Window - Control to Validate & Error Message
Click - F5 Button - Run the Program
Given to the Correct Length
Given to the InCorrect Length
The CustomValidator control allows writing application specific custom validation routines for both the client side and the server side validation.
CustomValidator
1.Server Side
2.Client Side.
DEMO
Html Coding
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table><tr><td>
<asp:Label ID="Label1" runat="server" Text="Name"></asp:Label>
</td><td>
<asp:TextBox ID="TextBox1"
runat="server"></asp:TextBox>
<asp:CustomValidator ID="CustomValidator1"
runat="server"
ControlToValidate="TextBox1"
ErrorMessage="Available lenght is 5 "
OnServerValidate="CustomValidator1_ServerValidate">
</asp:CustomValidator>
</td>
<tr><td colspan="2">;
<asp:Button ID="Button1" runat="server" Text="Save" />
</td></tr>
</tr></table>
</div>
</form>
</body>
</html>
C# Coding
protected void CustomValidator1_ServerValidate(object sender, ServerValidateEventArgs e)
{
if (e.Value.Length == 5)
{
e.IsValid = true;
}
else
{
e.IsValid = false;
}
}
The client side validation is accomplished through the ClientValidationFunction property. The client side validation routine should be written in a scripting language, like JavaScript or VBScript, which the browser can understand.
It doesn't come with a predefined way of working; you write the code for validating your self.
First - Add New -WebForm - Select Labels & Button & Textboxs - Next - Add Custom Validation From Validation ToolBox
Next - Add the Property Window - Control to Validate & Error Message
Next - Double Click -Custom Validator Tool- Write Coding
Click - F5 Button - Run the Program
Given to the Correct Length
Given to the InCorrect Length
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