ASP.NET Tutorial/Page Lifecycle/IsValid
Page.IsValid (VB.net)
<source lang="csharp">
<%@ Page Language="VB" %> <script runat="server">
sub Submit(obj as object, e as eventargs) if Page.IsValid then lblMessage.Text = "Success!" else lblMessage.Text = "One of the fields is invalid1" end if end sub
</script> <html><body>
<form runat="server"> <asp:Label id="lblMessage" runat="server" />
<asp:Panel id="Panel1" runat="server">
First and last name: |
<asp:TextBox id="tbFName" runat="server" /> <asp:TextBox id="tbLName" runat="server" /> <asp:RequiredFieldValidator runat="server" ControlToValidate="tbFName" ErrorMessage="First name required" Display="dynamic"/> <asp:RequiredFieldValidator runat="server" ControlToValidate="tbLName" ErrorMessage="Last name required" Display="dynamic"/> |
<asp:Button id="btSubmit" runat="server" text="Add" OnClick="Submit" /> |
</asp:Panel> </form>
</body></html></source>