CODEWITHSUNDEEP
asp.netvalidationwebformscustomvalidator
chobo
chobo

Reputation: 32291

set errormessage for customvalidator?

I would like to use a customvalidator control to handle all my validation, but I can't figure out how to set the error message in the code-behind for different checks. Is this possible?

Upvotes: 9

Views: 11908

Answers (2)

Hari Gillala
Hari Gillala

Reputation: 11916

For One Control you can do like this.. 

<!-- In Designer Page  -->
<asp:CustomValidator runat="server" id="cusCustom" controltovalidate="txtCustom" 
  onservervalidate="cusCustom_ServerValidate" 
  errormessage="The text must be exactly 8 characters long!" />
<br /><br />

/* In Code Behind*/
protected void cusCustom_ServerValidate(object sender, ServerValidateEventArgs e)
{
    if(e.Value.Length == 8)
        e.IsValid = true;
    else
        e.IsValid = false;
}

Upvotes: 0

jdavies
jdavies

Reputation: 12894

You can set the error message in the OnServerValidate method as you wish based on your validation logic:

protected void customValidator1_Validate(object sender, ServerValidateEventArgs e)
{
    if (e.Value.Length < 5)
    {
        e.IsValid = true;
    }
    else
    {
        customValidator1.ErrorMessage = "Length must be less than 5.";
        e.IsValid = false;
    }
}

Upvotes: 13

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