The type or namespace name 'KeyPressEventArgs' could not be found

[louise raisbeck]

What do I have to import at the top of my aspx page (c#) when getting this
error message?

i tried <% Import namespace="System.Windows.Forms.KeyPressEventArgs" %>

but it erros something along the lines of 'Windows not recognised in System'
I'm not sure I understand how to include classes. I'm only trying to
recognise an enter key pressed in a text box.

[Karl Seguin]

Louise,
You seem to be trying to mix WinForms and WebForms, which you can't. The
Textbox in asp.net is an instance of System.Web.UI.WebControls.TextBox,
which is not the same as in winforms (System.Windows.Forms.TextBox). The
ASP.Net one doesn't expose a KeyPress event, and if it did, the event
argument surely wouldn't be found in System.Windows.Forms*, but rather in
System.Web.UI.*

System.Web.UI.TextBox exposes a TextChanged event and that's pretty much it.
If you want to catch OnKeyPress you'll need to use javascript on the client.

The error you are getting is because you didn't reference
System.Windows.Forms to your code, which defines the System.Windows*
namespace. As such, System.Windows* is unrecognized. Again, simply adding
the reference might remove that error, but it won't work like you want
(winforms != webforms).

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"louise raisbeck" <lo************@discussions.microsoft.com> wrote in
message news:D1**********************************@microsof t.com...

What do I have to import at the top of my aspx page (c#) when getting this
error message?

i tried <% Import namespace="System.Windows.Forms.KeyPressEventArgs" %>

but it erros something along the lines of 'Windows not recognised in System' I'm not sure I understand how to include classes. I'm only trying to
recognise an enter key pressed in a text box.

[Kikoz]

Hi Louise.

If you try to develop a web site using asp.net then please describe in more
details what you're trying to do. None of asp.net controls have KeyPress or
KeyUp or KeyDown events. If you develop a desktop app (as your use of
System.Windows.Forms namespace implies) than you're in a wrong newsgroup :)

Regards,
Kikoz
"louise raisbeck" <lo************@discussions.microsoft.com> wrote in
message news:D1**********************************@microsof t.com...

What do I have to import at the top of my aspx page (c#) when getting this
error message?

i tried <% Import namespace="System.Windows.Forms.KeyPressEventArgs" %>

but it erros something along the lines of 'Windows not recognised in
System'
I'm not sure I understand how to include classes. I'm only trying to
recognise an enter key pressed in a text box.

[louise raisbeck]

didnt realise you couldnt use these events such as keypress on server
controls. makes sense as they are client events. sorry will think more in
future.

"Kikoz" wrote:

Hi Louise.

If you try to develop a web site using asp.net then please describe in more
details what you're trying to do. None of asp.net controls have KeyPress or
KeyUp or KeyDown events. If you develop a desktop app (as your use of
System.Windows.Forms namespace implies) than you're in a wrong newsgroup :)

Regards,
Kikoz
"louise raisbeck" <lo************@discussions.microsoft.com> wrote in
message news:D1**********************************@microsof t.com...

What do I have to import at the top of my aspx page (c#) when getting this
error message?

i tried <% Import namespace="System.Windows.Forms.KeyPressEventArgs" %>

but it erros something along the lines of 'Windows not recognised in
System'
I'm not sure I understand how to include classes. I'm only trying to
recognise an enter key pressed in a text box.