set $mobile_request '0';
if ($http_user_agent ~* (Android|webOS|iPhone|iPod|BlackBerry)) {
set $mobile_request '1';
}
if ( $request_uri ~* (error)) {
set $mobile_request '2';
}
if ($mo...
VB.NET
Private Sub TextBox1_KeyPress(sender As Object, e As KeyPressEventArgs) Handles TextBox1.KeyPress e.Handled = Not "01234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz...