Response write unavailable

[MrNorth]

I got a really wierd message when I tried to add a response.write

I added a class to my project that would handle db access

I have the colde like this:

Public Class DBAccess

Public Function GetPurchaseOrderLines(parameters) As DataTable
Try

//perform all db here



Return objDt
Catch ex As Exception
Response.Write(ex.Message)
End Try


End Function


Howcome I can't use Response.Write there? It says that it isn't available in this context... Do I have to add namespace reference for this??? That is something new to me....


kind regards
Henrik

[Fishcake]

You can't use response in a class as a class isn't linked to any webpage so it has nowhere to write the response to. How about passing the ex.message back as a string to the calling procedure and then response.write form there.

[Lord_Rat]

Or this:

'In the external class
Public Sub Something (param 1 as datatype, [b]objResponse as object[/b])
'Code
objResponse.Write(txtVariable)
'Code
End Sub 

Then, you call your sub like so:

Something(myVar, Response)

[MartinSmith]

Or will this work for you?

using System.Web;

....

HttpContext.Current.Response.Write(ex.Message)

[Lord_Rat]

No because your external class is not inherited from a class that inherits your page object. (IE, it does not have a context with which to write)

[MartinSmith]

But as long as it is instantiated from an object with a valid context (which it presumably is) then

System.Web.HttpContext.Current.Response.Write will be able to use that context I think.

[Lord_Rat]

The ultimate proof would be just to try it.

If this code is in a secondary page (as the original poster indicated), I don't think it would work.

Admittedtly, I have not tried your code in the past, but I have tried the response.write and that's when I had tofind another work around.

When I get some free time here, Ill try that.

[nemaroller]

You just pass a reference to the page to your calling function.