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4 answers

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Expense Tracker

I have developed a Google Gadget called Expense Tracker using Telerik's RadControls for Silverlight.

My glory with telerik controls

answered on 18 Apr 2009

2 answers

1.7K+ views

HTTP POST with binary data in .NET

Hi

From VB.NET I want to simulate the POST request of the following HTML form

<html>   

<title>HTTP Post Testing</title>   

<body>   

<form action=http://www.example.com/postdata   

enctype="multipart/form-data" method="post" name="testform">   

<input id="user_login" name="user[login]" size="30" type="hidden"   

value="user01" />   

<input id="user_password" name="user[password]" size="30"   

type="hidden" value="123456" />   

               <table>   

                       <tr>   

                               <td>File:</td>   

                               <td><input id="file" name="file"   

type="file" /></td>   

                       </tr>   

                       <tr>   

                               <td colspan="2"><input name="commit"   

type="submit" value="Upload" name="upload"/></td>   

                       </tr>   

               </table>   

       </form>   

</body>   

</html>

The target URL would return "OK" for successful upload and empty otherwise.

My code to generate the POST request is as followed:

        Try 

            Dim request As HttpWebRequest = CType(WebRequest.Create(Me.txtURL.Text), HttpWebRequest) 'this textbox contains the target URL of the request  

            ' Set the Method property of the request to POST.  

            request.Method = "POST" 

            request.Accept = "*/*" 

            request.UserAgent = "curl/7.16.3" 

            request.ProtocolVersion = HttpVersion.Version11  

            request.Referer = "http://www.mydomain.com/" 

            request.SendChunked = True 

            System.Net.ServicePointManager.Expect100Continue = False 

            ' Create POST data and convert it to a byte array.  

            Dim postData As String = "" 

            postData += Boundary + Chr(13) + Chr(10) + "Content-Disposition: form-data; name=""user[login]""" + Chr(13) + Chr(10) + Chr(13) + Chr(10)  

            postData += "gape" + Chr(13) + Chr(10)  

            postData += Boundary + Chr(13) + Chr(10) + "Content-Disposition: form-data; name=""user[password]""" + Chr(13) + Chr(10) + Chr(13) + Chr(10)  

            postData += "telipoint8" + Chr(13) + Chr(10)  

            postData += Boundary + Chr(13) + Chr(10) + "Content-Disposition: form-data; name=""file""; filename=""helpcurl.txt""" + Chr(13) + Chr(10)  

            postData += "Content-Type: text/plain" + Chr(13) + Chr(10) + Chr(13) + Chr(10)  

            postData += "fdfgfggfbfgggggggggggggggg" + Chr(13) + Chr(10) + Boundary + "--" + Chr(13) + Chr(10)  

            Dim encoding As New System.Text.ASCIIEncoding()  

            Dim byteArray As Byte() = encoding.GetBytes(postData)  

            ' Set the ContentType property of the WebRequest.  

            'request.ContentType = "application/x-www-form-urlencoded"  

            request.ContentType = "multipart/form-data; boundary=" + Me.Boundary + vbCrLf + vbCrLf  

            ' Set the ContentLength property of the WebRequest.  

            request.ContentLength = byteArray.Length  

            ' Get the request stream.  

            Dim dataStream As Stream = request.GetRequestStream()  

            ' Write the data to the request stream.  

            dataStream.Write(byteArray, 0, byteArray.Length)  

            ' Close the Stream object.  

            dataStream.Close()  

            ' Get the response.  

            Dim response As WebResponse = request.GetResponse()  

            ' Display the status.  

            MsgBox(CType(response, HttpWebResponse).StatusDescription, MsgBoxStyle.Information, "Response Code")  

            ' Get the stream containing content returned by the server.  

            dataStream = response.GetResponseStream()  

            ' Open the stream using a StreamReader for easy access.  

            Dim reader As New StreamReader(dataStream)  

            ' Read the content.  

            Dim responseFromServer As String = reader.ReadToEnd()  

            ' Display the content.  

            txtResponse.Text = responseFromServer 'this textbox shows the response from the server  

            ' Clean up the streams.  

            reader.Close()  

            dataStream.Close()  

            response.Close()  

        Catch Ex As Exception  

            MsgBox(Ex.Message, MsgBoxStyle.Exclamation, "Error Encountered")  

        End Try

Here I tried to simulate the upload of a text file. When I tried this code the server alays return 404 (Resource not Found) even though the URL is correct. When the ContentType is changed to "application/x-www-form-urlencoded", i.e. no file upload but only transfer normal text fields, the server seems to accept the request and returns empty (unsucessful upload), which is correct. When I tried the above code (with content-type=multipart-formdata) against an ASP script put on my locahost:

<%  

test1 = Request.Form("user[login]")  

test2 = Request.Form("user[password]")  

Response.Write(test1 + "<br>" + test2)  

%>

my script returns empty strings, which means the POST request generated by my VB code is malformed. But I cannot see what's wrong. I have compared it to the output of the following curl command

curl -F user[login]=user01 -F user[password]=123456 -F
file=@myfile.txt http://www.readysnap.com/print/mup and everything is exactly the same.

Can anyone suggest what's wrong? Thanks. :)

Getting started with ASP.NET

answered on 16 Apr 2009

0 answers

236 views

RadControls for WinForms Q1 2009 SP1 is available for download!

It is our pleasure to announce the immediate availability of RadControls for WinForms Q1 2009 SP1 with many bug fixes and several performance optimizations across different controls. Check out the list of full Release Notes

Enjoy!

Telerik Team

Announcements

asked on 15 Apr 2009

0 answers

94 views

UI Developer with Telerik Experience Required

We currently have an opening for a full time UI developer with experience of .NET AJAX at one of our offices in:

Bulgaria - Sofia
India - Channai
UK - Manchester

Please email Gavin Wheeldon gwheeldon@appliedlanguage.com and Kenny Holden kholden@appliedlanguage.com for full details.

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asked on 14 Apr 2009

0 answers

137 views

Radwindow , radToolbar

Hi,

I m having a radtoolbar in my page . I have placed an button control on the page . On click of the button i m opening a radwindow..when the radwindow is minimised i want that window show minimise on the radtoolbar. ie it should come and sit on radtoolbar..

If anybody knows the solution , give me soln.

Thanks,
Laila

Forum suggestions

asked on 14 Apr 2009

0 answers

125 views

40 Exceptional jQuery Interface Techniques and Tutorials

Hi,
I want to share this
40 Exceptional jQuery Interface Techniques and Tutorials

Kind Regards,
Mostafa Anoosheh

Interesting resources

asked on 13 Apr 2009

6 answers

186 views

The future of the Skin Exchange Program

Hi guys,

With the Q1 2009 release, all skins submitted last year are now obsolete. As long as there will be major changes in the skins mechanism between releases, we obviously won't get any long lasting user skins. I understand perfectly that these changes are necessary, I'm just wondering how you see the skin exchange program evolving.

Was there much download of the custom skins uploaded last year?
Are you still determined to keep the exchange program alive?

In any case I uploaded a combobox skin yesterday. But I can't find the skin exchange forum, there was such a forum right?

Regards,
-DJ-

Designs, skins, themes

answered on 07 Apr 2009

0 answers

76 views

Looking for a developer with experience in ASP.NET AJAX UI controls

Looking for a developer with experience in ASP.NET AJAX UI controls preferable in Texas area. We need about 40 hours of help with a project.

Job opportunities for RadControls experts

asked on 06 Apr 2009

0 answers

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Seeking Skin Designer for Q1 2009 Controls

I am seeking a designer/programmer who can develop skins for RadTabStrip, RadWindow (alerts), FormDecorator (for button and checkbox), RadComboBox and possibly 1 or 2 other controls.

I have graphic mockups of the design I need as well as the palette colors.

Please respond with a description of your experience relating to skins, sample work if possible, rates and availability. Send your response to info _AT_ Stratelogics [DOT] com and refer to this forum post.

Job opportunities for RadControls experts

asked on 06 Apr 2009

1 answer

159 views

Problem in RAD Datagrid sorting

Hi,
I am using Telerik RAD Datagrid in my usercontrol which is further pasted on the aspx page.
When i allow sorting or paging true then on clicking on the header for sorting it is giving javascript error as:
htmlfile: Unknown runtime error
and the aspx dynamic page show the error in the second lastlne of below code which is autogenerated:

if

(Telerik.Web.UI.Grid.IsChildOf(args.get_postBackElement(),this.get_element())||args.get_postBackElement()==this.get_element()){

var

_3d1=$get(this._statusLabelID);

if

(_3d1){

_3d1.innerHTML=this._loadingText;

}

can anyone please suggest me what to do it is very urgent?

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