Validation expression for Indian mobile phone number in asp.net c# , how to highlight control on validation error using java script in asp.net c#,Validating Image / File size on FileUpload before uploading file/ image using Java script

 In this article, we have written a code for Indian Pan Card validation. Many times we want to validate the pancard number in registration form. So we just need to write this ValidationExpression="[A-Z]{5}\d{4}[A-Z]{1}" . In our regular expression validation in asp.net.

Validation Expression:-

ValidationExpression="[A-Z]{5}\d{4}[A-Z]{1}"

For example:

In PAN Card format is

ABCDE1234F( 5alphabet 4digit 1alphabet)

CJSPS4983B

DSPSA8525A

Source Code:-

<asp:TextBox ID="txtname" runat="server"></asp:TextBox>

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="TextBox1"

                    Display="Dynamic" ForeColor="Red" ErrorMessage="Please Enter Correct PAN Card Number" ValidationExpression="[A-Z]{5}\d{4}[A-Z]{1}"></asp:RegularExpressionValidator>

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Validation expression for Indian mobile phone number in asp.net c# , how to highlight control on validation error using java script in asp.net c#,Validating Image / File size on FileUpload before uploading file/ image using Java script