Web Forms :: Accessing HttpResponse Page.Response From A Class Instead Of Cs File?
Oct 18, 2010
I have an issue with trying to create a Pdf file from my webpage. Basically, everythig involving creating the Pdf (using iTextSharp) is done, and I'm doing this as a File Stream (i.e, I'm saving the Pdf on local machine). Now what I'm trying to do is create it as a Memory Stream (i.e, open the Pdf from the browser). I was able to do this earlier when I wa still at the 1st version of the application, and all of the code behind was incluced in my .aspx.cs file. But now, I've kept the code in the .aspx.cs at a minimum and put the cude in classes and I'm creating onjects of thoses classes from the .aspx.cs
The problem is that the code from creating the Memory Stream is in a class as follows:
[Code]....
As you can imagine, the compiler cannot recognise "Response" as it's in a seperate class instead of in .aspx.cs
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Similar Messages:
Aug 27, 2010
i have to write this piece of code in almost 10 to 15 content pages. i am just wondering if i can class file as base class for my content pages and write this piece of code in that class.
[Code]....
can somebody guide me how to write the base class for this scenario?
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Feb 11, 2010
how to create object of HttpResponse class
HttpResponse response=new
HttpResponse (TextWriter
tx);
how to inplement this wrong code to right one & how to implement TextWriter.
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May 17, 2010
I need to be able to access simple page controls like a textbox from my page class. So if I have a simple aspx page with a textbox on it, I'm trying to do something like this. i'm not using codebehind btw:
[Code]....
I thought maybe I could pass a reference to the page into the class, something like:
[Code]....
But that's not working either. How can I access page controls from my class?
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Nov 24, 2010
I want to access the functions defined in ADO.vb file in my Default.aspx.vb file. note that the ADO.vb file is in the root directory. I can access it if it is in the App_Code directory. It it is in the root directory how can i access that?
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Feb 19, 2011
I am looking to render excel from an web control. I have code that works from a web page, but when I run it in an ascx.cs file it doesn't do anything.
Is there something about being in an ascx that makes a difference?
Here is my code:
Response.ClearContent();
Response.AddHeader("content-disposition", "attachment; filename=file.xls");
Response.ContentType = "application/vnd.ms-excel";
Response.BinaryWrite(result);
Response.End();
Response.Flush();
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Jul 27, 2010
I'm writing some code in which I need to use my own HttpResponse object to capture the output from a method on another object that takes an HttpResponse as a parameter. The problem is, this other object (which I cannot modify) calls HttpResponse.End(), which causes an "Object reference not set to an instance of an object" exception to be thrown. What can I do about this?
Dim myStringbuilder As New StringBuilder
Dim myStringWriter As New IO.StringWriter(myStringbuilder)
Dim myResponse As New Web.HttpResponse(myStringWriter)
someObject.doStuffWithHttpResponse(myResponse) ' calls myResponse.End() and crashes
Here's some more complete information about the error, thrown from the following code in a console application:
Dim myStringbuilder As New StringBuilder
Dim myStringWriter As New IO.StringWriter(myStringbuilder)
Dim myResponse As New Web.HttpResponse(myStringWriter)
Try
myResponse.End()
Catch ex As Exception
Console.WriteLine(ex.ToString)
End Try
Here's the text of the exception:
System.NullReferenceException: Object reference not set to an instance of an object.
at System.Web.HttpResponse.End()
at ConsoleApplication1.Module1.Main() in C:Documents and Settingsjoe.userLocal SettingsApplication DataTemporary ProjectsConsoleApplication1Module1.vb:line 10
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Jul 1, 2010
While working on my FTP server, I am trying to access a class within my App_Code, but it is not working.When writing, the class is accessible/usable in the code like shown in picture. I get no build errors.But when I run it in the browser, I get an error stating that it cannot find my class.I've looked around some other posts on the forum, like using namespace, but it didn't work.
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Mar 24, 2011
I am having a class file in which i want to redirect the page from one application to another application or how to use the response.redirect method in a class file
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Aug 6, 2010
I'm wondering how I can go about accessing page controls from a separate class I've made. I've tried a few things I found using google, but no luck :(
What I'm trying to do is keep a function that is used often, in a global class.
The function then accesses a page literal and calls ScriptManager.RegisterStartupScript. I was hoping this is possible, so then this function wouldn't have to be copied to all of the pages.
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Mar 15, 2010
User fills out this large page which is dynamically created based off DB values. Those values can change. When the user fills out the page and hits submit we want to save a copy of the page as html on the server, this way if the text or wording changes, when they go back to view their posted information, it is historically accurate.
So I basically need to do this
protected void buttonSave_Click(object sender, EventArgs e)
{
//collect information into an object to save it in the db
bool result = BusinessLogic.Save(myBusinessObject);
if (result)
//!!! Here is where I need to save this page as an html file on my servers IFS!!!!
else
//whatever
Response.Redirect("~/SomeOtherPage.aspx");
}
Also I CANNOT just request the data from the url because query string parameters are a big no no in this case. The key to pull the database info up (at its highest level) is all in session so I cant just request a url and save it.
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Oct 12, 2010
I am using some code similar to the code below to open a word document on my ASP.net app. Once the file has been downloaded and opened I then want to either redirect to another page or refresh the screen but nothing works after response.end and if i add it before response.end the browser never downloads the file?
[Code]....
[Code]....
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Feb 3, 2010
I have two labels( actually more) on the master page which is accessed by the pages which use the master page template.
Label lblchome = (Label)Page.Master.FindControl("lblHome");
// Retrieved from Master
Label lblcdest = (Label)Page.Master.FindControl("lbldest");
This code occurs on every single page and it works fine, but my problem is I want to put them on a class file and make it available to the entire application. using System.Configuration;............
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Nov 29, 2010
When I run the code below, nothing happens.
protected void Page_Load(object sender, EventArgs e)
{
System.IO.FileInfo file = new System.IO.FileInfo(Server.MapPath(Request.QueryString["path"].ToString()));
Response.Clear();
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "filename=" + file.Name);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.WriteFile(file.FullName);
Response.End();
}
The url of the page, is:
http://mysite.com/Lib/Rs/Download.aspx?path=/uploadedFiles/110210_CS_ADM-Coaching_SG_Final.pdf
If I add a param to the url and refresh, the file will load.
http://mysite.com/Lib/Rs/Download.aspx?path=/uploadedFiles/110210_CS_ADM-Coaching_SG_Final.pdf&ur=1223
Why wont the file load on the initial page load, or how do I get it to?
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Mar 27, 2010
I have several .aspx pages that all have identical code behind pages.For ease of maintenance,I would like all the aspx pages to share a common code behind page.
To do this I have created a MyCommonClass class,which contains the common code.In the code behind of the .aspx pages, I have:
Partial class MyPage
Inherits MyCommonClass
End Class
But now the controls declared in the .aspx pages are not accessible in MyCommonClass.fix this?
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Jan 15, 2011
I got a ASP.Net website (webforms application in C# - .Net framework 2.0) with Master Page, webforms and a GlobalFunctions class in App_Data folder where i do have ErrorLog functions and few other generic functions. Everytime an exception is caught in my webform it calls this GlobalFunctions.Errorlog function to log the error in my database table. After the exception details are written to the database table, I also would like to redirect the user to my ErrorPage.aspx like
Response.Redirect("ErrorPage.aspx",false);
However since i am inside a class (GlobalFunctions.vb) and not a webform, I don't know how to redirect this to ErrorPage.aspx since i can't access Response class.
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Oct 25, 2010
Last night you guys here on this forum helped me in accessing properties of a dynamically loaded UC in an aspx page. Now i am facing another hiccup.
My code behind is : public partial class SiteUserControls_Message_Messages : BaseControl
In one of the click events i am loading three web users controls:
protected void RadTabStrip1_TabClick(object sender, RadTabStripEventArgs e)
{
SiteUserControls_Message_Create CreateNewMessageUC = Page.LoadControl(CreateMsgControl) as
SiteUserControls_Message_Create; // typecasting the UC
[Code]....
Now i want to access this variable CreateNewMessageUC in another event like this:
protected void MarkAsUnreadLinkButton_OnClick(object sender, EventArgs e)
{
CreateNewMessage.CreateNewMessageUC.RefreshSendTo();
[Code]....
But when i access teh variable in another event it is always null.
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Apr 27, 2016
I have a class and call class A method by creating class A object
unlike this call Class B method by using class B objectÂ
Code is here below
class A {
public void A1() {
Console.WriteLine("I am from Class A");
}
}
class B {
public void B1() {
Console.WriteLine("I am from Class B");
[Code] .....
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Jan 16, 2010
i have code in .cs class file
i need it in .vb
i used conversion tool for converting
but i feel its not proper as i am not able to reference it in my page
is there any other way
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Mar 31, 2011
Im writing a bit of code that will extract the contents of a gridview to excel. I have all the parts working except for one. In my page_load i fetch the data from the database and then have the user select some options which filters the data and then the gridview gets populated. The problem im having is that the Response call doesnt seem to get the data from the gridview if i enclose the database fetch command within if not page.ispostback in the page_load
I have some test pages where i just fetched the data from the database bound it in a gridview in the Page_load. then on a button click export the data in the gridview to excel. Works fine if i DONT enclose the fetch command within not page.ispostback but outputs an empty excel file if i do.
Now i have to use not page.ispostback in the actual webpages because the users have to make selections which will filter the original dataset. How do i get this to work?
The page is also implementing AJAX if that helps. Here's an example of what i have:
[Code]....
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Nov 18, 2010
I have build a UserControl with separate code behind file.In that code behind file i have defined some public properties in the Partial class of user control that was automatically generated.Those properties will initialize some properties of controls that are used in the control.Now, in .aspx page i used this User Control and initialized the public properties through code behind of aspx page for dynamic contents.
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Jan 6, 2010
I have a regular method I want to call. I need to use properties of the GridViewRowEventArgs Class within this method.
i.e.
[Code]....
Of course the above code is not valid because I don't think you can put GridViewRowEventArgs within the method like that. I don't want to put it within a event handler because that even handler is doing other things. I want to be able to call this seperatley.
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Feb 10, 2010
I'm accessing a Masterpage property from a regular page by doing the following:
[Code]....
I get the following error message:
Compiler Error Message: CS0246: The type or namespace name 'SecondMasterPage' could not be found (are you missing a using directive or an assembly reference?)
My base class file is a file called BaseClass.cs in my App_Code directory. Other functions in there work without errors. Why?
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Oct 22, 2010
Hoping someone can point me to a solution, haven't been able to find one yet.
I'm using the standard way for send HttpWebRequest
[Code]....
As you can see from Fiddler/SOAPUI it does return the SOAP fault, however using HttpWebRequest i can't capture the response.
Returning 500 triggers my exception handling and Capturing the WebException doesn't expose the response.
Does anyone know how to capture this response xml in the case of 500 Internal Server Errors.
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Mar 15, 2011
So i have some existing functionality from an older ASP.Net app that is a static class.
Say there's a static method in that class that returns a dataset that I would like to bind to something like a gridview or whatever I can build using MVC3.
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