How to tell TextBox.Text is null or not

[Henry Lee]

Hi,
I want to tell if the .NET textbox.text control on the web page has been
input or not
So I write
If TextBox.Text <> "" then
.....
End IF
But you know it does not work , the error
"'text' is not a member of 'String'."
How to do it properly ?
Thanks for any input.
Henry

 

[Karl Seguin]

What is TextBox?

it should look osmething like:
<asp:textbox id="Name" runat="server" />

codebehind:

Protected Name as TextBox

sub Page_Load
if not Name.Text is nothing andalso name.Text.Length > 0 then
..
end if
end sub

 

[Keith Patrick]

Or if you're on 2.0,
If Not String.IsNullOrEmpty(Name.Text) Then
....
End If

 

[Edwin Knoppert]

Len() works the same..