Login to secure webpage using system.net.webc lient

[Ben]

Hi

I have the code below that I am using to login to my remote webpage.

The problem is that it seems to not post the data. I have heard that
ViewState can be a problem and that it may be necessary to retrieve the
ViewState field and Post it with the data, i have attempted test this by
copying the viewstate text out of the source and into the start of the
variable strPostData - as you can see commented out.

I am unsure why I do not get forwarded from the adminlogin.aspx page after
posting the data, could this be the viewstate or another issue?

Any advice would be much appreciated.

Thanks
B
Dim strURL As String
Dim strPostData As String

Dim byteResponse() As Byte

Dim i As Integer

Dim strViewState As String

strURL = strHttpLocation & "adminlogin.asp x"

strPostData =
"UsernameTextBo x=username&Pass wordTextBox=123 4&LoginButton=L ogin"

'strPostData =
"__VIEWSTATE=dD wtNDU0NDA4NTk3O zs+hQAoe3316Ljm 9GtmhxCl3GsRZjw =&UsernameTextB ox=username&Pas swordTextBox=12 34&LoginButton= Login"

'login

gobjWebClient.H eaders.Add("Con tent-Type",
"applicatio n/x-www-form-urlencoded")

byteResponse = gobjWebClient.U ploadData(strUR L, "POST",
System.Text.Enc oding.ASCII.Get Bytes(strPostDa ta))

TextBox1.Text = System.Text.Enc oding.ASCII.Get String(byteResp onse)

[Ken Tucker [MVP]]

Hi,

http://msdn.microsoft.com/library/de...tialstopic.asp

Ken
-------------------------
"Ben" <Be*@NoSpam.com > wrote in message
news:%2******** ********@TK2MSF TNGP10.phx.gbl. ..
Hi

I have the code below that I am using to login to my remote webpage.

The problem is that it seems to not post the data. I have heard that
ViewState can be a problem and that it may be necessary to retrieve the
ViewState field and Post it with the data, i have attempted test this by
copying the viewstate text out of the source and into the start of the
variable strPostData - as you can see commented out.

I am unsure why I do not get forwarded from the adminlogin.aspx page after
posting the data, could this be the viewstate or another issue?

Any advice would be much appreciated.

Thanks
B
Dim strURL As String
Dim strPostData As String

Dim byteResponse() As Byte

Dim i As Integer

Dim strViewState As String

strURL = strHttpLocation & "adminlogin.asp x"

strPostData =
"UsernameTextBo x=username&Pass wordTextBox=123 4&LoginButton=L ogin"

'strPostData =
"__VIEWSTATE=dD wtNDU0NDA4NTk3O zs+hQAoe3316Ljm 9GtmhxCl3GsRZjw =&UsernameTextB ox=username&Pas swordTextBox=12 34&LoginButton= Login"

'login

gobjWebClient.H eaders.Add("Con tent-Type",
"applicatio n/x-www-form-urlencoded")

byteResponse = gobjWebClient.U ploadData(strUR L, "POST",
System.Text.Enc oding.ASCII.Get Bytes(strPostDa ta))

TextBox1.Text = System.Text.Enc oding.ASCII.Get String(byteResp onse)