Architecture :: How To Force An Application To Write Entire Response At Once
Mar 18, 2010
if there is any config setting or any other way to force the response to be written all at once instead of it being written in multiple packets??The problem is I am using a response filter to edit anchor href's and the html parser (HtmlAgilityPack) strips out the malformed HTML when the framework writes to the response stream multiple times, so enforcing an all at once write would solve this headache.
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Mar 11, 2010
I am a newbie of handling memory.
in my web apps, files are stored as varbinary in sql server.
my goal is to make a response to let users to download the files.
if there is a file (500 MB) stored in one record in the sql server,
what is the best way to let users download it?
I found that , in code-behind, if the files are loaded as byte[] objects, it uses the memory.
for example, the datalength of a file in the database is 500 MB.
the byte[] for this file uses 500 MB memory. am I correct?
how about the filestream? if the file is loaded as a filestream object in code-behind.s
does it also take 500 MB memory?
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May 12, 2010
I'm having a problem with entering edit mode in Gridview. When I click edit, it shows it in normal mode (labels) even though RowCommand does successfully fire.
But I have to click it AGAIN to get it to show the TextBoxes of 'Edit' mode.
How can I fix this? Is there a way to force a 'postback' on the entire page, or re-render a control? (i'm assuming thats the problem)
Here's the pseudo code:
GridView1_RowCommand(....)
If e.CommandArgument = "EDIT" then
GridView1.EditIndex = 5
End IF
End Function
A click of the 'edit' button returns the gridview with the normal labels. Then when I click it again, the TextBoxes show up.
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Jun 8, 2010
My site has an iFrame that displays content from and second site. I don't control the second site. When a user clicks on a link in the iFrame, I want it to redirect the entire page, not just the iFrame. I've seen solutions for doing this from the iFrame, but I need to do it solely from the parent. I'd prefer to do it in the code behind, but a javascript solution would be acceptable.
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Apr 22, 2010
what is difference between Response.write and Response.output.write
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Feb 2, 2010
How do I go about forcing a TabPanel to fill the entire height of the page? Each of the tabs in the tab control are being populated with different data such that each panel is of a different height. Some of the tabs may only fill half of the page while others may exceed it, which is why I can't simply hardcode the height. I've tried wrapping the <contenttemplate></contenttemplate> inside of a div and set the div height to 100%, but that obviously did nothing.
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Oct 6, 2010
i am calling a function which is inside Homescroll.ascx.cs from Homescroll.ascx so i wrote on Homescroll.ascx as <% Response.Write(scroll()); %> but all this is in update panel,and i am getting errors. so is their any other way to call function from homescroll.ascx to homescroll.ascx.cs,instead of response.write();
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Jan 24, 2010
I have written simple HttpModule. context.Response.Output.Write is working fine. but not context.Response.Write().
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Jan 21, 2010
Let me explain better than what the question state. I dynamically generate a KML file from an aspx page and use routing to change the url so I can access myapp.com/mykml.kml and the download starts. I use Response.write() in the aspx page to send the data and it work flawlessly. But there is a zipped version for KML files which is KMZ and I am wondering if I can still use my aspx page to serve a KMZ instead of a KML. Since I do not use a file I cannot "zip" it. Is there a way to zip the stream and output it in the Response.Write()?
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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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Apr 7, 2010
I am implementing the Ecommerce projects, where I need to static SessionID, is there any way to maintain the SessionID in the Entire Application.Explanation of my question is herehttp://stackoverflow.com/questions/2467644/session-sessionid-in-asp-netbut How can I implement this approach.
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Oct 13, 2010
I have the following subroutine:
Public Sub StartTimeDif()
Dim dt As DateTime = Convert.ToDateTime(starttimeInput.Text)
Dim dt1 As DateTime = Convert.ToDateTime(endtimeInput.Text)
Dim ts As TimeSpan = dt1.Subtract(dt)
Response.Write(ts.Minutes)
End Sub
and I'm trying to pass (ts.minutes) to durationLabel.
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Oct 25, 2010
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")%>
<% 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();
Person p = new Person() { FirstName = "First name", LastName= "last name" };
string json = s.Serialize(p);
System.Web.HttpContext.Current.Response.Write("jsoncallback" + json);} //error
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Feb 23, 2011
I have database code like this
try
{
string strConnectionString = ConfigurationManager.ConnectionStrings["SqlServerCstr"].ConnectionString;
SqlConnection myConnection = new SqlConnection(strConnectionString);
myConnection.Open();
string hesap = Label1.Text;
string musteriadi = DropDownList1.SelectedItem.Value;
string avukat = DropDownList2.SelectedItem.Value;
SqlCommand cmd = new SqlCommand("INSERT INTO AVUKAT VALUES (@MUSTERI, @AVUKAT, @HESAP)", myConnection);
cmd.Parameters.AddWithValue("@HESAP", hesap);.......
It works fine but what I want, in the catch function, is to call the javascript alert function.
I've tried this
Response.Write("<script language=javascript>alert('ERROR');</script>);
But there is an error
How can I show error message in 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();
}
}
I am facing a problem that my download window hangs indefinitely, without ever completing the download/Open of the file.
What am I doing wrong? Am I not disposing any objects or closing any connections here?
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Jan 5, 2011
how can i get get below value into asp:textbox
Response.Write("<script id=""mycountry3"" language=""Javascript"" src=""http://www.ip2phrase.com/ip2phrase.asp?template=You are from Country: <COUNTRY> ""></script>")
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Apr 21, 2010
in a webpage I have a link to let the user download file, such as,
<a href="showfile.aspx?filename=xxx">download file</a>
in showfile.aspx, I send the file using Response.OutputStream.Write method. now I get some problem when somebody put this webpage in an IFrame and open in IE, as I checked the code, showfile.aspx is requested twice when clicks the link, and in the second time the cookies of authorization and session Id are missing. I tried to add the p3p header but not working.my question is, is this how the IE designed with iframe? is there anyway to work around?
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Jan 5, 2010
I have an aspx page and when the user clicks a button the following code runs:
Response.Write(string.Format("<script language='javascript'> window.open('DisplayImage.aspx?DocumentID={0}', 'window','HEIGHT=600,WIDTH=820,top=50,left=50,toolbar=yes,scrollbars=yes,resizable=yes');</script>",
id));
The variable id is declared and it's value set eralier in the method.When the new window opens it displays the image properly, but the existing page suddenly loses all of it's styling. The links double in size and change font family. Does anyone know a way to retain styling on the calling page?
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Jan 7, 2010
have the following
Response.ContentType =
"application/octet-stream";
Response.AppendHeader("Content-Transfer-Encoding",
[code]...
Error 1 'Response' is an ambiguous reference between 2 references that have a Response.Neither is the one I need,how do i reference the Response that write the file?
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Jan 6, 2010
Presently I am working using single tier architecture. Now I am wanting to learn how to write code using 3 tier architecture.
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Aug 18, 2010
I'm doing something for paypal.
So i have my values for paypal PDT like this:
[Code]....
and then i will send the form to paypal and get the values (i also need some javascript to do that but it's irelevant now).
[Code]....
So it works ok but it show me all the paypal values on the page.Logical since i do a response.write.
Now my question is if there is a way that i will not get to see the values on the page.
I've tried request.clear ,request.flush but i didn't come up with anything.
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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>);....
wen the "response.write" is executed. . all my contents of the page are moving to left side of d page and the fonts getting bigger and font style is changed as well . .
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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
Sometimes it needs to respond by clearing the response, writing an image to the response stream and changing the content type. When you do this, you get an exception "OutputStream is not available when a custom TextWriter is used".
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">
And I know how to look at incoming requests and recognize query strings that should be routed to the control. Now the control is supposed to respond with a generated image (content-type: image/png -- and the encoded image). In ASP.NET, we:
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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