Asp.net custom validator

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hi all,
am using custom validator on my code behind using ASP.NET C#
i have return below code in my application
actually the code was working fine on my end but the wrong way
but i need the below option such us,
the char should be min 5 to 10
my code is:

XML

server side code:
protected void TextValidate(object source, ServerValidateEventArgs args)
{
   args.IsValid = (args.Value.Length == 5);
}


client side code:

<asp:textbox id=TextBox1 runat="server"></asp:textbox>
<asp:CustomValidator id="CustomValidator1" runat="server"
   OnServerValidate="TextValidate"
   ControlToValidate="TextBox1"
   ErrorMessage="the char should be min 5 to 10.">
</asp:CustomValidator>

so please have a look at my code,
i have tried many other way but i cant.

thanks to all

Posted 28-May-14 0:41am

stellus

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KaushalJB · Answer 1 · 2014-05-28T00:45:00

You can apply below code :

ASP.NET

<asp:textbox id="TextBox1" runat="server" xmlns:asp="#unknown"></asp:textbox>

<asp:regularexpressionvalidator display="Dynamic" controltovalidate="TextBox1" id="RegularExpressionValidator3" validationexpression="^[\s\S]{5,10}$" runat="server" errormessage="Minimum 5 and Maximum 10 characters required." xmlns:asp="#unknown"></asp:regularexpressionvalidator>

Shemeer NS · Answer 2 · 2014-05-28T00:50:00

Solution 2

Have you tried below statement.

JavaScript

args.IsValid = (args.Value.Length >= 5 && args.Value.Length <= 20);

Posted 28-May-14 0:50am

Shemeer NS