I have a button that calls a click event to download a picture. In my click event I have some code to change my display as the Save dialog pops up. The issue I am having is that when the dialog comes up it stops the previous line of code from executing. How can I check to see that my code has executed before calling the function?
Here is my button event handler and function:
[code]....
Is is possible to write to the http response stream from a dynamically created bitmap using the Response.Write/WriteFile without saving the image to the hard drive?
View 4 Replieshow to write two files using Response.WriteFile?
I tried the following
Response.AddHeader("Content-Disposition", "attachment; filename=" + textFile);
Response.Flush();
Response.WriteFile(FilePath);
Response.End();
streamWriter2.WriteLine(CodeFileText);
streamWriter2.Close();
Response.AddHeader("Content-Disposition", "attachment; filename=" + textFile2);
Response.Flush();
Response.WriteFile(FilePath2);
Response.End();
But it downloads the first and stops.
It doesnot go for second one.
Response.ContentType = "pdf";
Response.AppendHeader("Content-Disposition", "attachment; filename=test.pdf");
Response.WriteFile(this.txtFileName, true);
Response.Flush();
Response.End();
which shows a prompt to download the file and the prompt by default has "Open", "Save" and "Cancel" buttons with "Cancel" selected by default.Is it possible for me to hide the "Open" button and force users to eitehr save or cancel?
I've made a user control with several LinkButtons on it. On click of any of these buttons executing following code:
Response.ContentType = "Response.ContentType";
Response.AddHeader("Content-Disposition", "filename=" + CorrectFileName);
Response.WriteFile(filename);
Response.End();
And I have to problems with it:
1. after user click on one of the buttons another ones doesn't response
2. I need to execute some code after user received file (delete copy of it from the server)
I suppose I need to open another window and call SaveFile dialog from it. But how can exactly do this? I've found example code of opening window or starting SaveFile dialog but not two of them together and I can't figure out how to put them together...
I have an asp.net page.
Which is used to download files from server.
The page is using Response.WriteFile method to start download.
Every thing is working fine.
But download does not have resume support.
if I redirect user to that file without using Response.WriteFile method then it supports resume.
I've just installed VS 2010 RC and IIS7 with .NET framework 4.0 on a Windows 7 laptop (and I'm very new to this).
I'm trying to use Response.WriteFile to add a menu to an .aspx page, and it works but it also adds two square/unknown characters before the inserted text. Also, when I view the source of the displayed webpage in IE8, the source gets up to the point of the two squares, then shows an opening angle bracket (<) and then stops, although the rest of the webpage displays fine.
It doesn't matter whether the included file has any text in it or not, or whether it is an .html or .aspx file.
Response.Write doesn't have the problem.
(In FF and Opera, the inserted text is displayed as html code with a space (opera) or unknown character (FF) between each normal character. I'm not worried about those browsers as I'm developing soley for IE8)
I'm using an .ashx handler to retrieve an image file... It queries a local database, which retrieves the URL of an image which is hosted on Amazon S3.
But I can't use context.response.write(AmazonS3URL) because it returns the error '...is not a virtual path'.
Can context.response.write only return files that are on the local machine? Or is there another function to call remote files?
I'm moving applications from IIS6 to IIS7.5 (win 7 an win server 2008 r2), when 2 applications (with identity impersonate) try to get a file with response.writefile only from a UNC path i'll get "access denied". In IIS6 and Visual Studio Developer Web Server, same code works. I can save file with FilePath.SaveAs and get name and length with FileInfo, but not download. After 2 days of nightmares I have tried to change
Response.WriteFile(filePath)
to
Response.BinaryWrite(File.ReadAllBytes(filePath))
and now work. My question is: can I have a microsoft developer to sacrificate for my avenge?)
Is it at all possible to inject a request into IIS for a page, have IIS and ASP.Net handle it as normal, but get the response as html handed back to me programmatically?
Yes, I know that I could connect to port 80 using WebRequest and WebResponse, but that becomes difficult if you are accessing the IIS server from the same physical machine (loopback security controls et al).
Basically, I want to inject the request (eg for [URL]) between the points at which IIS would normally talk to the browser, and the point at which it would route it to the correct ASP.Net application, and get a response back from IIS between the points at which ASP.Net/IIS applies the httpfilters and hands the html back to the browser.
I'm predominantly working with IIS7 so if there is a solution that works just for IIS7 then thats not an issue.
I'm trying to get the previous page URL after I do a response write and i've looked around the web and people are using HTTP_REFERER but that doesn't work with Response.Redirect so is there anyway to get the URL of the previous page?
I have this code on a few pages and i need to know which page it is coming from when it gets to the servererror/default.aspx page
Response.Redirect("servererror/default.aspx?404")
And on my servererror/default.aspx page i'm just trying to grab the previous page URL and put it into the Session Session("ErrorPage")
UPDATE
I have now got it to work like this
Response.Redirect("server-error.aspx?404&" & Request.Url.ToString())
That passes the URL of the page with the error to the next page and I then grab that from the Query String
I am dynamically generating controls, and sometimes I want to create a control and have it ignore the viewstate. For example, sometimes the user has clicked a button indicating they want a different form loaded, so the control tree I generate on postback is different from the original control tree. This is fine, except when I call Controls.Add then it tries to load the viewstate form the old controls into the new controls if the control tree structure is similar, and I want them to instead ignore that viewstate(and also ignore the postback values for input controls as well).
Can I do something like set the IDs of the controls or something that would allow me to conditionally prevent them from getting the viewstate/postback data of the previous request?
Edit: If I let the user of the control load the form on demand in postback handler, the postback data is not applied when I call Controls.Add(this really seems like a flaw in ASP.NET, because I would think if you're going to apply viewstate data "after the fact" through Controls.Add, it'd seem you would then apply the postback data automatically as well after the viewstate data is loaded). The real problem I run up against is my control is very dynamic, but the user of my control can't really tell it what to do until their postback handler fires, because one of the things a user can do is select different forms to be loaded via some link buttons. So it's not until the postback handler runs that they know what the uesr requested, and thus can ask my control to load a certain form. So I have to ask them to do convaluted things like saved the formID that identifies the last form to a session variable, and in OnInit they tell my form what the old formID was via a property. My control then loads the form in OnLoad so that it can consume the viewstate and postback data, and later in the programmer's postback handler, they can choose to clear the form and load a different one if they want.
Edit2: FYI Generating IDs for each control unique to the form works great, so I thought I could eliminate the pointless loading of the old form until the programmer requests a form be loaded in his postback handler. But as I mentioned above, what I found was that loading the form after postback data handling has occurred means that data is lost. Whereas viewstate gets loaded via Contorls.Add, playing catch up in the page lifecycle, it seems postback data does not!
I need to I can make the web request to a webservice which take a XML argument. And is expected to return a Binary response. I am able to make the request but while recieving the response back I am unable to get the response in binary. When I read the response
using streamreader see the header and some attached "HEBRISH" words probably binary but unable to sepreate it out. Please help in seprating out the binary the response data.
I'm developing a client of a webservice in C# with VS.NET 2008.And I would like view the xml response of my request to the web service. which i have call . Is it posible?
View 2 Replieswhere i need to understand the Raw XML Request and Response send thru when an web service API is called.We are using a Third part web service i.e. we have reference a third party wsdl file in our application and using its APIs defined.For Authentication purpose we are using web service extension in Framework 2.0
View 1 RepliesI am unable to use request and response.redirect in class project in c# ! am I missing a refference ??
View 13 RepliesI am using an SMS Gateway to make my application receive SMSs. For this, the SMS Gateway sends a request to one of the pages in my application with the message as a querystring parameter. eg.[URL]. Now after my page gets invoked, I need to send an OK response to the SMS Gateway so that it doesn't keep retrying to send the same message to my application again and again. I cannot figure out how to send the OK response.
View 1 RepliesIn pageload, if you do Response.Cookies.Add(..., immediately in the next line, you can access that cookie via Request.Cookies(... I know that under the covers, the cookie is added to Request.Cookies by .net, but the original request never had that cookie.
If what I'm saying is correct, why is it this way? Shouldn't the cookie be available in the following request? Shouldn't the immediate access to Request.Cookies(... be null?
I am trying to the following to return xml response from an http request
Code:
Try
Dim id As String = Request.QueryString("id")
Dim xmlOut As String = ""
cn.ConnectionString = "Data Source=192.168.1.2;Initial Catalog=db;Persist Security Info=True;User ID=sa;Password=pass"
dad = New SqlDataAdapter("select * from tbl where id = '" & id & "'", cn)
ds.Clear()
[Code] ...
Is there some other way to do this without having to resort to writing the xml to a temp file on C drive and reading it again to display the output ?
What is actually meant by the request and response object in asp.net?
View 1 RepliesDoes Response.Redirect equate to sending a GET request to the server?
View 3 RepliesI am trying to create a web service that can do the following functionality:
Request XML
[Code]....
How can I create web service to do this.
My web site is integrated into a client web site. Client web site reaches out to my site through an Xml request and I return Html embedded in an Xml response. Client site then displays the Html in an area on a page on their site. All is well so far...
Now, there is a link on the Html that does an HttpPost back to my site which causes a re-direct to another page on my site. i.e. [URL] -> HttpPost -> [URL]-> Response.Redirect("CookieTest.aspx"). Still, all is well. [URL]
All of the above can occur without authentication to mysite. Where I start running into problems is when CookieTest wants to do a FormsAuthentication.SetAuthCookie(). If I put a button on CookieTest that does FormsAuthentication.SetAuthCookie() and then Response.Redirect("SecurePage.aspx"), still under [URL], the SecurePage does not recognize the authentication because the auth cookie is not present.
1. Navigate straight to CookieTest.aspx
So I simplfied the problem into basic cookie set/read excercise and used the code below to test out cookie writing/reading ability. When I call the page directly from the browser I see that on initial load the response cookies are empty. Then on button click I see that the cookie is properly set in the response. Then on subsequent page refresh I see that the page load shows the request cookie.
2. Navigate to CookieTest.aspx in an HttpPost from [URL], as mentioned above.
Now on button click I see the cookie in the Response but do not see it come back in the Request of subsequent page refreshes, as if the client browser is rejecting cookies set by my server.
3. Navigate straight to CookieTest.aspx, then do the HttpPost from [URL]
In this case, since the cookie was set during a straight navigation to CookieTest.aspx, the cookie is present in the subsequent HttpPost/Redirect from [URL]. CookieTest.aspx has full access to the cookie and can even delete it.
4. Have CookieTest.aspx pop a new browser window simply sets the cookie and closes itself down.
Similar to #3, if the cookie is set through a popup window and then CookieTest is refreshed the cookie is present in the Request.
Notes:
The code does prove that the client browser accepts cookies.
When my page (CookieTest.aspx) is shown within the frame on the [URl] page, during any link back to my server, the Request.Url.Host shows my domain.
[code]....
How can I retrieve the list of all the request I made it to server with respect to time required to process time for it.In my page I am using some web services. I want to retrieve list of all the web services I am using and time required to process this request.
View 2 RepliesThis question seems to be pretty close to what I am looking for - I was able to setup tracing and I am looking at the log entries for my calls to the service.However I need to see the raw soap request with the data I am sending to the service and I see no way of doing that from the SvcTraceViewer (only log entries are shown but no data sent to the service) - am I just missing configuration?
<system.diagnostics>
<sources>
<source name="System.ServiceModel"
switchValue="Verbose"
propagateActivity="true">
[code]...