HttpWebRequest Problems

[mpooley]

Hi all
I am just experimenting with HttpWebRequest as I want to interface with a micro controller on my network that has its own inbuilt web page.

It has a page where I have to input a password and then press a button to change an output on the controller board.

when i use it, it works and the output state is changed but when i use this code more than once or twice my whole program locks up and i have to stop it in the IDE.
could someone have a look at my code for me please ?
I have never done this before and feel maybe I should close the connection after each use? but i don't understand how to.

I am using this code.
Public Sub TurnOn()
' Put a "/" character at the end of the URL if it doesn't exist

Try
If Not txtUrl.EndsWith("/") Then
txtUrl += "/"
End If

Dim strOn As String = "sc=1&"

' tm = Timeout value in minutes, 0 = no timeout
Dim strTm As String =[String].Format("tm={0}&", 0)

' Pw = password
Dim strPw As String = [String].Format("pw={0}", txtPassword)

Dim webRequest__1 As HttpWebRequest = DirectCast(WebRequest.Create((txtUrl & "?") + strOn + strTm + strPw), HttpWebRequest)

webRequest__1.Method = "GET"

Dim response As HttpWebResponse = DirectCast(webRequest__1.GetResponse(), HttpWebResponse)

Catch ex As Exception
Stop
End Try




End Sub

 

[JohnH]

maybe I should close the connection after each use? but i don't understand how to.

HttpWebResponse Members (System.Net)

response.Close()

 

[mpooley]

How the hell did I miss that! LOL

It was late and I was tired . Thats my excuse and I'm sticking to it

thanks John