Question

I’m having an issue with a standard ASP.NET portal.
Suppose that has a TextBox and a RequiredFieldValidator. I want the validator only shows the error message when I input a wrong format text.

However the current issue is even I haven’t input nothing, it displays the message. After I type the correct text, it disappeared then.
My code:

<tr>
                    <td>
                        *First Name:
                    </td>
                    <td>
                        <asp:TextBox runat="server" ID="FirstName" MaxLength="50" />
                        <asp:RequiredFieldValidator runat="server" ID="RequiredFieldValidator1" ControlToValidate="FirstName"
                            ErrorMessage="First Name is required." EnableClientScript="True" />
                    </td>
                </tr>
                <tr>

The code behind is something like

 protected void Page_Load(object sender, EventArgs e)
    {
        Page.Validate();
        if (!Page.IsPostBack)
        {
            // blah
        }

    }

Thanks.

Answer 1

That’s what the RequiredFieldValidator is supposed to do. Use another type of validator such as a RegularExpressionValidator or a CustomValidator.

Also how do you define the correct format for a person’s name?