Web Forms :: Outputting PDF As HTTPWebResponse Converted To MemoryStream
Nov 12, 2010
I have a file, a.pdf, stored on a SharePoint server behind Windows authentication. I want to make a.pdf available through another Web app with forms authentication. Basically, link is clicked and up pops the open / save as dialog for the pdf (or other document file) I've set up my HTTPWebRequest and passed credentials, getting my data into a stream (file.GetResponseStream).
I've tried converting the stream to a byte array and then using response.write or response.output.write with no luck (stream not seekable) I've tried using a streamreader and doing a response.write(streamreader.readtoend()) and response.write(memorystream.toarray(),0,memorystream.toarray().length) with no luck (the message received from the server could not be parsed).
I'm trying to attach a memorystream as an attachment to an email, however the file is always empty. I'm using a streamwriter to write the text in to the memorystream, I then flush the streamwriter and I can see the memorystream has data. However when I attach the memorystream to the email the file is always empty. I can't see what I'm doing wrong. The code is:
I connect to a web address using HttpWebRequest object (http://www.website.com/page1.aspx), this page should redirect me to another page (http://www.website.com/page2.aspx). What I want to do are two things:
Redirect (http://www.website.com/page1.aspx) to (http://www.website.com/page2.aspx) by HttpWebRequest obeject.Get the new URL (http://www.website.com/page2.aspx) from HttpWebResponse.
I'm trying to read a response from an encoded apache server, the post works fine but i'm ripping my hair out over the response, it was working yesterday and they've turned off compression now so there is no contenttype encoding getting passed back.I'm using fiddler and getting this response back for the response type below; i'm basically trying to read a XML into a XmlDocument from the responded string and all i'm geetting back is encoded characters no matter what i do, so can someone please give me a hand with this before i make myself bald before 30.
I need to display pdf using my web application each time user clicks on image icon.On clicking the image, I will call another web application(imageUrl) which will open up the pdf.Please find the code below:
My problem is that although the response length is correct at around 21MB, the stream is returned far too quickly (pretty much instant) and the byte array ends up being filled with only a small number of bytes. The response is clearly not returning the full file so what am I doing wrong?
olowing: response.BinaryWrite(myStream.ToArray());response.End();ser gets saving dialog and he can chose to save file or to cancel saving. But, problem is that can't continue to run code if user chooses to cancel download or, if he chooses to save file. I want to call another method afther that to update some tables in database, but I can`t do this.
I have a function that downloads an image from a DB, saves it to a Temp directory and passes the string back to an app that opens it. Ran fine with .NET 2.0, but throws a variety of exceptions in .NET 4.0. (like System.AccessViolationException was unhandled).It somehow seems to relate to the saved file still being locked.
Im generating a PDF file. Normally I send this to the user using a .ashx file, where the user can directly download it from his browser (see that code below).
Protected Function getfile() As MemoryStream Dim stream As MemoryStream = New MemoryStream If document.PageCount > 0 Then document.Save(stream, False) 'Context.Response.Clear() 'Context.Response.ContentType = "application/pdf" 'Context.Response.AddHeader("Content-disposition", "attachment;filename=TicketEZ_tickets_" + eventname + ".pdf") 'Context.Response.AddHeader("content-length", stream.Length.ToString) 'Context.Response.BinaryWrite(stream.ToArray) 'Context.Response.Flush() Return stream stream.Close() 'Context.Response.End() End If
But now I want to send this file as an email attachment...how can I do that? I tried this, but that doesnt work...(Value of type 'System.IO.MemoryStream' cannot be converted to 'String')
Dim att As New System.Net.Mail.Attachment(getfile) Msg.Attachments.Add(att)
I trying to display image in picture box. The application have two part.First part is windows application, and second part is web service (asmx).This is the code for windows application:
Public Sub PrikazSlike() Dim p As localhost.Service1 = New localhost.Service1() PictureBox1.Image = Image.FromStream(p.PictureShow()) [code]....
The problem is that function in web service does not return System.IO.MemoryStream data type so I getting error message can not convert:
Error 1 Value of type 'WindowsApplication1.localhost.MemoryStream' cannot be converted to 'System.IO.Stream'.
The required functionality I am aiming for is to pull out RTF content from a database, edit it through a web interface (with a WYSIWYG editor) and then place the modified text back in to the database (in RTF format).
The control that I am using to do this is Telerik RadEditor (we have a license already for these controls). In the most recent version there appears to be functionality to load in RTF content from a string or a stream, but the only method I can see that is exposed for getting RTF back out is exportToRTF(); this method modified the headers and allows you to save a RTF version of the content you have just edited as a file.
The functionality to convert from HTML to RTF must exist somewhere within their library as you can export a RTF file, but I can not find any publicly exposed methods to pass this in to a stream or a string.
Does anybody know of a way that I can convert the HTML back to RTF using the Telerik libraries without saving out to a file?
I tried to post data to client HTTPPost URL, as per the client specification I need to post the data using "Post" method and I used the same. But it throws an error "The remote server returned an error: (500)Internal Server Error". in the HTTpWebResponse.My post URL does not have any specific page like http://abc.com/post/post.aspx. the actual URL looks like "http://abc.com/post", Can we post the lead without any specific page like I said in the above URl?
I'm implementing PayPal PDT (Payment Data Transfer) for payment confirmations in ASP.NET.'m going to receive a url post from PayPal with query string parameters. Then I need to send back the form at the bottom of the page.I'd like to implement the form at the bottom as a non-visual HttpWebRequest.
I'm very new to MVC (just started 2 days ago), and I would like to know what the best practice is for outputing HTML.
I have a model named Tools.cs which contains the code below. It uses a stored procedure to return a recordset of menu items, and another to return a second level of menus for each first level menu. In another function, I then loop through the recordset and generate the HTML code to display the menu in a string, which is then returned.
I then have a controller MenuController.cs which calls the GetMenu method and puts the returned HTML string in the ViewData["RightMenu"].
I then have a view which displays the result.
My question is: would it be better practice to return my datareader to the controller into ViewData["RightMenu"], and then loop through it and construct my HTML in the View instead?How would I get that to work with that second level of menus?[Code]....
I have an small ASP.NET application that reads data from a table and sends it out as an excel attachment in an email message. The data is simply HTML table tr td tagged data. The way I am sending the message is by the following code:
byte[] data = GetData(excelData); MemoryStream memoryStream = new MemoryStream(data); mm.Attachments.Add(new Attachment(memoryStream, "info.xls", "text/plain"));
This has been working fine in Excel 2003 but for some reason Excel 2007 keeps trying to convert the whole thing to a formula and I get a "Cell Data too Long" error. I've tried searching but couldn't really find anything specific about why this might be happening in 07 or a simple way to fix it. I know 07 probably handles data a little bit different than 03 but I don't have a lot of time to dedicate to reworking this app if possible.
Does a HttpWebResponse.StatusCode detect Asp.Net errors? Mainly a yellow screen of death? Some Background: I am working on a simple c# console app that will test servers and services to make sure they are still functioning properly. I assumed since the HttpStatusCodes are enumerated with OK, Moved, InteralServerError, etc... that I could simply do the following.
WebRequest request = WebRequest.Create(url); request.Timeout = 10000; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); if (response == null || response.StatusCode != HttpStatusCode.OK) { // SERVER IS OK return false; } else { // SERVER HAS SOME PROBLEMS return true; }
I found out this morning however that this doesn't work. An ASP.Net application crashed showing a Yellow Screen Of Death and my application didn't seem to mind because the response.StatusCode equaled HttpStatusCode.OK. What am I missing?
I have 50 checkboxes that I need to write onto an aspx page. Each checkbox comes with 3 textboxes.
Example:
chkbox State Name donation new donation chkbox CA Sam 10 15 chkbox AK Sam 15 20
Now this shall go for all 50 states, depending on which states the person wishes to donate. In each state's row shall be a checkbox. So initially the page shall have value 0.00 in donation and new donation checkboxes, but all 50 states shall be visible. When the person puts a value of donation in certain state, that state shall get "checked" value and the donation, after submitting. On reloading, the value shall be populated automatically and checkbox checked automatically.
How do I make these 50 checkboxes in VB.NET? Do I have to write the table in .aspx with 50 <tr> tags, and then have VB.NET code populate it? Can I otherwise dynamically write these checkboxes from VB.NET code?
