I have the following HTML Form That I'm trying to automate:
<html>
<body>
<!-- The data encoding type, enctype, MUST be specified as below -->
<form enctype="multipart/form-data"
[Code]....
I can grab info from a website uing httpwebrequest but i don't know how to post to a form :/Ive always used a webbrowser for this but its a tad slow.Here is what i use with a webbrowser:
Dim DBSplit() As String = Split(TextBox5.Text, "/")
WebBrowser1.Document.GetElementById("email").SetAttribute("value", TextBox1.Text)
WebBrowser1.Document.GetElementById("Pwd").SetAttribute("value", TextBox6.Text)
[code]....
How would i post this data to a form using httpwebrequest?
vbnet
Public Class zWrapper
#Region " Variable Declaration "
Private _AllowRedirects = True, _UseGZIP As Boolean = True
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It works fine for GET requests, but when I try a POST, it errors: Quote:
A first chance exception of type 'System.NullReferenceException' occurred in WindowsApplication1.exe
Request Error: Object reference not set to an instance of an object.
The form I want to post to has a dynamic boundary.Is there a to detect the boundary pre-POSTing?Also, do I need to send the data in the format of:
[code]...
Or can I set it up in pairs like: "var1=value1&var2=value2"...for all required form fields? What is the difference between the 2?
[code] I'm trying to post data on these two TextBoxes using HttpWebRequest method , Blow is the post data string [code] So when i send this request to the website , It only post the password but not the name , There's something causing conflict with the word name either 'name="name"' this line or something else.
View 26 RepliesI've managed to narrow down my issue to a simple annoyance. I had a Webbrowser control mostly coded to navigate around an Oracle CRM On Demand site to generate metric reports, but then realized when I tried to build in the auto-download part, that the Webbrowser object wasn't going to give me the behind-the-scenes control I wanted. Searching online, it seems the Webclient control might be a better route. However I'm stuck trying to get by the login page so I can use the Download-File method to get my generated xls report. [Code] But every reply from the server has "Sign In Error: Both a user sign in ID and a password must be given." which tells me the form/post data isn't getting where it needs to go (It thinks the form is blank at [Code].
The above username and password are bogus of course, but once I can get a different reply then 'the fields are blank' I can worry about correct logon information. I'm just not sure what I'm not doing correctly or if I need to include something else. Since it's a publicly accessible site and I'm stuck getting something in the form to be 'seen', it should be easy for others to try and test.
I'm having problems sending multiple files via HttpWebRequest. I tried various ways on the basis of the code below, but always manage to send only 1 file at a time.[code]...
View 1 RepliesI'm using the following code to upload a file to web space that I own and and has all access rights, however for some reason even though it looks like it should work and there are no errors the file is never created on the server.
Dim wr As System.Net.HttpWebRequest
Dim ws As System.IO.Stream
Dim sw As System.IO.StreamWriter
[Code].....
I am using the code below to upload a file to a server running windows IIS 5.1.
I am just testing on my own computer to see if this works ok. However, I keep getting the following error message:
The remote server returned an error (405) Method Not Allowed I am sure this is a IIS problem maybe something to so with permissions. However, I am configure the virtual directory to allow read, write, and directory browsing.
The config.xml file I am trying to upload is located in the same directory as the executable and does exist.
Private Sub upload_config_to_server()
Dim url As New Uri("http://localhost/softphone/config.xml")
Dim wc As New WebClient()
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I need to upload a file to an ftp site. Can I use a simple webclient or do I need to use ftpwebrequest? What are the differences?
View 3 RepliesI am creating a program that will assist users upload a file to a couple different upload sites. There will be RapidShare and Uploading. I want to keep the GUI clean and simple, so I do not want to use a web browser. I have not used much Post Data, but am wanting to use it for this job. What I want the program to do is after the user specifies a file, the program will automatically upload the file to the site.
Here is what I have so far:
Public Function MultiUpload(ByRef data As String, ByRef url As String) As String
Dim request As HttpWebRequest = DirectCast(WebRequest.Create(url), HttpWebRequest)
request.Method = "POST"
WebRequest.Create("[URL]")
request.ContentType = "application/x-www-form-urlencoded"
Dim postData As String = data
request.ContentLength = PostData.Length
request.ContentLength = PostData.Length
End Function
differences between HttpWebRequest and WebClient and why I should use either.
View 1 RepliesI am working on a Geocoding app where I put the address in the URL and retreive the XML. I need the complete XML response for this project. Is there any other class for downloading the XML from a website that may be faster than using WebClient or HttpWebRequest? Can the XMLReader be used to get the full XML without string manipulation and would that be faster and/or more efficient?
View 2 RepliesI have took a little research for the method to grab the html tag and input the textbox strings into the html page by using system.net.webclient and httpwebrequest, but I couldn't find the answer.o get the the method for system.net.webclient and httpwebrequest to grab the html page and input the strings into the php form?
View 4 RepliesWhat is the difference between those 2 classes in System.Net?How can I login to website using one of these classes, and how can I post to a forum?
View 4 RepliesI'm using the following code to set the proxy on an HTTPWebRequest:
Dim proxy As New WebProxy("HOST:PORT")
...Then...
' Goto the final URL
request = CType(WebRequest.Create("[URL]"), HttpWebRequest)
request.Proxy = curProxy
[Code] .....
Now I put in a valid Proxy, don't run into any problems applying it, but IPChicken will always return my IP address, not that of the proxy.
I'm looking for a way to fill in various website details using a HttpWebRequest/WebClient. I can manage it quite easily using an invisible WebBrowser control, by manipulating the HtmlDocument, but for some reason I just can't quite grasp the way I would do it with a HttpWebRequest/WebClient. I've heard both of these can potentially submit info using the UploadData functionality etc, but I'm missing specificsI've done a lot of searching on google just for a basic example to get me started, but the only one that LOOKED informative was written entirely in German.Take, for example, this website. Let's just say I wanted to automate filling in my username and password into their respective boxes and then pressing the "submit" button. How would I start going about this, and how do I get the resulting page? (I'm assuming cookies that the page creates will keep your next webrequest going)
View 9 RepliesI'm trying to use proxies with HTTPWebRequets and it works just fine until I try and post data. It keeps timing out for some reason. Attached is the class I use for webrequests.
Imports System.IO
Imports System.Net
Public Class EasyHttp
Public Enum HTTPMethod As Short
[code]....
[code].....
View 3 RepliesI have donsome programmng in the past but am just getting back into it.I am trying to post to the following webpage. I need to fill in the "upfile" box and submit.[code]I keep getting 501 not implimented errors. I have asked my mate Google and cant find anything.
View 3 Repliesi have a site that i would like to login using httpwebrequest.I have this code and added the correct part to post
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim postData As String = "u_name=" & TextBox1.Text & "&p_word=" & TextBox2.Text & "&login=Login"
Dim tempCookies As New CookieContainer
Dim encoding As New UTF8Encoding
[code].....
If i enter the wrong login info it says bad login, but if i add the correct login info, it does not login, all it does is displays the login page again?
I'm trying to send some data onto a server. The data is an XML in form of string and and image encoded to base64.The problem is that the server says '404 Not Found', just as if I had an incorrect URL, but my URL is 100% correct. I can get data from the server using GET, but when I try to POST it doesn't work.I checked it in Fiddler and it first gets z 401 error (not logged in) and then the 404 error, which results in an exception.Can anybody please have a look at the below code and tell me if there is something I'm doing wrong?
vb
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
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How to create an POST with the HttpWebRequest Class in VB.net (2008)? I can find exemples with text only but not with text and files.
View 1 RepliesI'm creating an app that edit a post in a ipforum with httpwebrequest and httpwebresponse in vb.net.I use fiddler2 to get the post forms.I successfully create the code to connect to the site the authentication works well and i don't found problems. But to edit a post i don't find how to do it this is the request of the site taken from fiddler:
[Code]...
I have a web form on a web page like this:
<form
method="post"
action="http://poston.domain.com/"
[code]....
Is it possible to send HTTP POST with some form data with System.Net.WebClient?If not, is there another library like WebClient that can do HTTP POST? I know I can use System.Net.HttpWebRequest, but I'm looking for something that is not as verbose.
Hopefully it will look like this:
Using client As New TheHTTPLib
client.FormData("parm1") = "somevalue"
[code].....
Using the following VB.Net simple code to upload files in FTP, a call to WebClient.CancelAsync() doesn't actually cancel the upload.Does someone know why, and what can be done about this?
Private Sub UploadProgressChanged(ByVal sender As Object, ByVal e As System.Net.UploadProgressChangedEventArgs)
'TO-DO: Why is pbar empty?
ProgressBar1.Value = e.ProgressPercentage
Label1.Text = e.BytesSent & " bytes sent"
End Sub
[Code]...
I have a bit of strange behaviour in an asp.net web application that involves the session state being lost.
Process A user logs into the application and the session is set. They then fill out 1 field, and the application then does an AJAX POST to a .asmx web service. Within the web service, I am using a HttpWebRequest to grab data from another server.
This data is then output to the browser.A few more fields are then filled in, and the data is then again Post to the same web service via an AJAX POST.
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Is it httpwebrequest / httpwebresponse not enough to upload larger files (2-3 GB)? I requested to all vb.net or c# uploader to share your opinion and alternative too.
View 3 Repliesi have just started learning about httpwebrequest and response to open webpages and get/post info. Anyways i have a working project that connects to a webbrowsewr useing a proxy but this does not workj for httpwebrequest. Im guessing its totally different for httpwebrequest but i have no idea how to work this :/
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