Form Validation C Sharp

[amean_n]

Hi there,

I have a form and am trying to get the validation to work correcetly.

The form :

 <form id="ContactForm" runat="server" method="post">
        <ul class="ContactForm">
                <li>
                    <label class="Label">
                        First Name:
                    </label>
                    <asp:TextBox CssClass="formField" MaxLength="50" ID="txtFirstName" runat="server"></asp:TextBox>
                    <asp:RequiredFieldValidator ID="rfvFirstName" runat="server" ErrorMessage="'First Name' must contain a valid entry"
                        ControlToValidate="txtFirstName" Display="None"></asp:RequiredFieldValidator>
                    <asp:Label ID="lblFirstNameRequired" runat="server"></asp:Label></li>
                <li>
                    <label class="Label">
                        Surname:
                    </label>
                    <asp:TextBox CssClass="formField" MaxLength="50" ID="txtSurname" runat="server"></asp:TextBox><asp:RequiredFieldValidator
                        ID="rfvSurname" runat="server" ErrorMessage="'Surname' must contain a valid entry"
                        ControlToValidate="txtSurname" Display="None"><span class="error">required</span></asp:RequiredFieldValidator>
                    <asp:Label ID="lblSurnameRequired" runat="server"></asp:Label>
                </li>
				
</ul>
				
				<asp:Button ID="btnSubmit" ToolTip="Submit form" CssClass="btnSubmitForm" runat="server"
            CausesValidation="true" Text="Submit" OnClick="btnSubmit_Click" />
			
</form>

And the C# logic behind it.

protected void btnSubmit_Click(object sender, EventArgs e)
    {

        //Data Validation

        if (txtFirstName.Text.Length < 1)
        {
            lblFirstNameRequired.Text = "Required";

        }
        else
        {
            if (txtSurname.Text.Length < 1)
            {
                lblSurnameRequired.Text = "Required";
            }

On the submit button being clicked I would like the logic to validate the form.

So far I ahve this, however I cant get it to work correctly.

Any ideas or suggestions as to why and what I should be doing?

Thanks/

[developerguru]

Just change the logic for btnSubmit_Click

if (txtFirstName.Text.Length < 1)
        {
            lblFirstNameRequired.Text = "Required";

      

if (txtSurname.Text.Length < 1)
            {
                lblSurnameRequired.Text = "Required";
            }

  }

else 

{

type the code that has to followed or else leave it blank.
}

[amean_n]

Hi developerguru, thanks for your response, however using the code you supplied I still have no joy

Thanks.

[ryanbutler]

Should be able to tap into the IsValid property for the page:

if(!IsValid){
//send your email
}

The rest should be handled internally by .NET framework.