Sunday, April 20, 2014

Check String length jQuery Custom Validation

In this tutorial I will show you how you can validate string length i.e. maximum and minimum characters in jQuery

For this operation we will use ASP.NET Custom validator

First in our markup we need to create a Custom Validator

<asp:CustomValidator ID="CustomPasswordRangeValidator"
ClientValidationFunction="ClientValidate" ControlToValidate="Password" runat="server"></asp:CustomValidator>

Now we will define a method in javascript this function will contain all the validation

function ValidateUserName(source, clientside_arguments) {
            //Test whether the length of the value is more than 6 characters
            if (clientside_arguments.Value.length >= 4 && clientside_arguments.Value.length <= 10) {
                clientside_arguments.IsValid = true;
            else {
                clientside_arguments.IsValid = false
                source.innerHTML = "UserName must be between 5 to 10 characters";
this function check if the string length is greater than 4 and less than 10 than it will be allowed.
else we will set a custom error message
I hope it was informative for you and I would like to Thank you for reading 

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