C# - Response.Write Behavior Varies In The Given Scenario?
Jun 16, 2010
When i POST the page using the following code, the Response.write("Hey") doesn't write the content ("Hey") to the parent page
<form method="post" name="upload" enctype="multipart/form-data"
action="http://localhost:2518/Web/CrossPage.aspx" >
<input type="file" name="filename" />
<input type="submit" value="Upload Data File" name="cmdSubmit" />
</form>
But When i use following code , and POST the data, the Response.write("Hey") can be obtained in the parent page
[code]...
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Feb 1, 2011
string filePath = ExportAndSaveInvoiceAsHtml(invoiceId);
Response.AddHeader("Content-Disposition", "attachment;filename=" + Path.GetFileName(filePath));
Response.WriteFile(filePath);
[code]...
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Apr 22, 2010
what is difference between Response.write and Response.output.write
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Jan 5, 2011
I have two very similar pieces of ASP.NET code that send a file in an HTTP Reponse to the client. They should cause the browser to prompt to save the file. The first one works, the second one doesn't. The HTTP responses as seen in Fiddler are below.
Working:
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 228108
Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 4.0.30319
content-disposition: attachment; filename=Report.xlsx
Date: Wed, 05 Jan 2011 12:17:48 GMT
<binary data>
Not working:
HTTP/1.1 200 OK
Server: ASP.NET Development Server/10.0.0.0
Date: Wed, 05 Jan 2011 12:19:21 GMT
X-AspNet-Version: 4.0.30319
Content-Length: 228080
content-disposition: attachment; filename=report 2.xlsx
Cache-Control: private
Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Connection: Close
<binary data>
When the first one is seen in Fiddler the browser correctly prompts to save the file. When the second one is seen in Fiddler, nothing observable happens in the browser. Same behaviour in both chrome and firefox.
EDIT: ASP.NET code that produces the second response
Response.Buffer = false;
Response.ContentType = @"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AppendHeader("content-length", genstream.Length.ToString());
Response.AppendHeader("Content-Disposition", string.Format("attachment; filename={0}.xlsx", filename));
byte[] buffer = new byte[1024];
genstream.Position = 0;
int n;
while ((n = genstream.Read(buffer, 0, 1024) ) > 0)
{
Response.OutputStream.Write(buffer, 0, n);
}
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Jan 8, 2010
I am using a gridview to display (open or save) files that have been uploaded into a SQL 2005 server. I have a templatefield within the gridview that contains a linkbutton that does a postback to GetUploadedFile.aspx that then fires the response.binarywrite() code. The code seems to work fine and opens/saves the files correctly. But once this has completed and I try and click on another button on the page, instead of doing the appropriate action it re-fires the getuploadedfile.aspx binarywrite code and opens up the "Open/Save/Cancel" dialog again.
[Code]....
[Code]....
[Code]....
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Oct 6, 2010
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Jan 24, 2010
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Jan 21, 2010
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Sep 13, 2010
how come the following won't write to different lines? It is all in the same sub.
[Code]....
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Oct 13, 2010
I have the following subroutine:
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Dim dt1 As DateTime = Convert.ToDateTime(endtimeInput.Text)
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In the past I have always worked from the code behind page in ASP.NET and emitting all of my markup from that area.I am now learning MVC and am working in the .ASPX page directly.
<%= Html.Label("Test") %>
<%: Html.Label("Test")%>
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Nov 18, 2010
UPDATE:
The service cannot be activated because it does not support ASP.NET compatibility. ASP.NET compatibility is enabled for this application. Turn off ASP.NET compatibility mode in the web.config or add the AspNetCompatibilityRequirements attribute to the service type with RequirementsMode setting as 'Allowed' or 'Required'.
when i try to access wcf service i get this error: the reason is HttpContext.Current is null, what should i do in this case?
Object reference not set to an instance of an object.
System.Web.Script.Serialization.JavaScriptSerializer s = new System.Web.Script.Serialization.JavaScriptSerializer();
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Feb 23, 2011
I have database code like this
try
{
string strConnectionString = ConfigurationManager.ConnectionStrings["SqlServerCstr"].ConnectionString;
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myConnection.Open();
string hesap = Label1.Text;
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It works fine but what I want, in the catch function, is to call the javascript alert function.
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Jan 3, 2011
I am trying to force a download of an XML file when the user visits a page.
This is the code I am using
public partial class GenerateTemplate : LayoutsPageBase
{
protected void Page_Load(object sender, EventArgs e)
{
//.............
//Going about generating my XML
//.............
Response.ClearContent();
Response.AddHeader("content-disposition", "attachment; filename=template.xml");
Response.Write(xmlDoc.InnerXml);
Response.Flush();
Response.Close();
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I am facing a problem that my download window hangs indefinitely, without ever completing the download/Open of the file.
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Jan 5, 2011
how can i get get below value into asp:textbox
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in a webpage I have a link to let the user download file, such as,
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Jan 5, 2010
I have an aspx page and when the user clicks a button the following code runs:
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Jan 7, 2010
have the following
Response.ContentType =
"application/octet-stream";
Response.AppendHeader("Content-Transfer-Encoding",
[code]...
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Aug 18, 2010
I'm doing something for paypal.
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[Code]....
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[Code]....
So it works ok but it show me all the paypal values on the page.Logical since i do a response.write.
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Dec 17, 2010
I hv a master page nd 3 content pages...my contents of d page r located in the middle of the page...
I have some alert boxes in my page...like this,. response.write(<script>alert('Invalid input')</script>);....
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Sep 21, 2010
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?
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Apr 28, 2010
I am trying to get a control (not a controller -- a subclass of System.Web.UI.WebControls.WebControl), that can be used that I wrote for ASP.NET to work in an ASP.NET MVC environment. Normally, the control does the normal thing, and that works fine
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If I were a page or controller, I see how I can create custom responses with binary data, but I can't see how to do this from inside a control's render functions. To simplify it -- imagine I want to make a web control that renders to:
<img src="pageThatControlIsOn?controlImage">
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Response.Clear();
Response.OutputStream.Write(thePngData); // this throws in MVC
// set the content type, etc
Response.End();
How am I supposed to do that in an ASP.NET MVC control?
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Oct 18, 2010
I want to use response.write to generate a table. but I have a question, the result of table must display on the top of web page. How can I control the location of table? e.g. at the middle or end of web page or starting from number of line.
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Feb 2, 2011
how 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.
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Feb 28, 2011
i am using CollapsiblePanelExtender and button to open pdf document using response.document in same form. CollapsiblePanelExtender works fine before i click button to open pdf document using response.write and once i click on button CollapsiblePanelExtender does not work.
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