There is an ashx file containing "ProcessRequest(HttpContext context)" method which gets triggered automatically. When and how does it get fired?Another question, How can I get the current QueryString when I am inside this file? When I type "context.Request.QueryString" it says it's null or empty although the address have arguments.
View 1 RepliesSetup: I have a RadioButtonList with two listitems (One Street, the other Schools). These define what type of search I want. I textbox with associated autocomplete. First you select which search to complete, and then start typing and the autocomplete will make . Autocomplete goes out to ashx webservice which pulls a list from the database.
I have tested the webserver and it works properly, so I'm thinking the problem is with my jQuery UI autocomplete. <div id="divSelectOne" style="padding:8px 3px 8px 3px; border-bottom:1px dotted #cccccc; background:#f9f9f9;"> <span style="font-weight:bold; color:#369;">Select One:</span><br />
<asp:RadioButtonList ID="radSelect" runat="server" RepeatDirection="Horizontal">
<asp:ListItem Text=" Street, City, Zip or Subdivision" Value="Street" Selected="True"></asp:ListItem>
<asp:ListItem Text=" School" Value="Schools"></asp:ListItem>
[Code]....
I have a simple 'file download' generic handler which sets the response contenttype and headers before sending the file through the same response.
I also have Response.Cache.SetCacheability(HttpCacheability.server) set in the global.asax.
As I have noticed from various sources, Internet Explorer doesn't like this no-cache setting and gives an error when trying to download the file (requested site unavailable or cannot be found).
I thought maybe I could override this setting in the .ashx page, so I alter the response's cacheability setting to public. This did not solve the issue. removing the line from global.asax does solve the problem but obviously affects the whole site.
Is there a way of setting the cachability just for my generic handler?
If I access session variable in ashx handler through it is always null. How can I access the current user here.
public void ProcessRequest (HttpContext context) {
context.Session[UIConstants.SessionItems.ID] = Id;
}
i have a ashx file
this file return string (plain/text)
i want ro read this from another page
Like:
http://www.domain.com/My-ashx.ashx?q=1 (This URL Return One Line Plain/Text)
i have another page: http://www.domain2.com/default.aspx ( I want write string(Return From ashx file))
THere is an external ASHX url that dinamically generates an XML file.
I tried to parse this XML using the doc.Load("http://www.domain.com.br/asp.net/integration.ashx") but it haven't worked.
The same code above work fine if I use a XML file instead of ashx one.
I need to read the XML file generated by the ASHX one in order to integrate the websites.
In a basic scenario where I have a GridView with files to download and link buttons to download them, is there any benefit at all for creating a custom http handler for streaming those files as opposed to simply streaming from the event handler of the download link button?
Edit: As some suggested code reuse would favor the handler, however it's not an issue in this particular case. The handler is also faster being that it avoids the page life cycle, however this slight performance improvement is probably not worth creating a handler for in my particular situation. The only thing that comes to mind now is (assuming using the same aspx page approach) whether there is any special consideration in a situation where the GridView is inside an UpdatePanel?
I have created file upload funactionality along with progress bar in my project for this. I have referred following jquery tool you can see here.[URL]with the respective funcationality. i have created one .ashx file for string file on server but when i try to store file on server it gives me error.Could not find a part of the path so i put whole path in the respective code but still i m getting some error. my code is
sfilenamestored = ("\Users\dev5\Desktop\DataAccessLayer\PresentationLayer\"+"/Uploaded_Document/" + upload_files.foldername.ToString()) + "/" + GetUniqueKey() + file.FileName;
I have implemented a generic handler to work as a restful web service in ASP.Net. I have a problem receiving the XML file that is being posted to this web service. I cannot actually see anything being passed. I have gone through the form, querystring, and file properties of the request object. Everything is empty. I know that the file has been posted correctly because I can see it while using a port sniffer.
How can I access this file?
For our application we provide users with file downloads that utilize handlers to serve the files. Currently, the way it is served to the user is through window.location. When using this, at times, it causes issues under IE8. When an error occurs, it cannot be caught under the page that called it.
A) Is there a way to serve an ashx file handler to the user where the page that called it can catch any exceptions made from thje handler
B) What is the correct way to serve the handler, eg. window.open, window.location, etc. Would return false at the end of the javascript solve this? Are there any other ways
implemented a generic handler in my application which works great for images, but when I manually type the handler URL in the browser with the image's querystring it prompts download instead of displaying. Here is my code:
public void ProcessRequest(HttpContext context)
{
if (this.FileName != null)
{
[code]...
I have the below code which does not work. I cannot instantiate my class this way.
SecurePage secureCs = new SecurePage();
I want to be able to inherit the class instead of instantiating.
[Code]....
i have generic handler file ashx file , i want to pass value from my codebehind to ashx file and i want to use switch case inside the ashx handle
View 1 Replies.ashx file is working perfectly in visual studio iis but when hosted it is not working
View 2 RepliesI want to access the static variable in my global.ashx file I am using classname.variable name for accessing the variable but the variable name dose not appear.Can someone tell me how to access static varialbe in *.ashx file.
View 5 RepliesWe have a whole bunch of WML pages that are served out using ASHX files and we've had no problems with them. However, someone has just got a Windows 7 Phone and when they browse to one of these pages they get:
Can't download file! Windows Phone doesn't support .ashx files Is there some IIS configuration that we need to do to make this work?
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 have doubt i have a .ashx file is in project called ShowImage.ashx,Currentely i am using this file for to show to show images in uploading area used to immediately show image after uploading it to the uploader on the web page
here some part of my code
event on UPLOAD BUTTON CLICK
HttpPostedFile File = FileUpload1.PostedFile;
.....
............
Image1.ImageUrl = "~/ShowImage.ashx?id=" + id;
but now i want to pass the user id containg textbox value to this .ashx file(it is an int Value not string) how can ito send my textbox int values to .ashx file and receive the result
I have read in many places that referencing IRequiresSessionState or IReadOnlySessionState will allow me access to the Session scoped variables from within the ProcessRequest method in an ASHX file.
I have implemented these changes, as follows, and I am unable to retrieve this data still, as the server returns a null object reference error:
using System;
using System.Web;
using System.Web.SessionState;[code]....
The error is most certainly specific to pulling data from the session, yet I am 100% certain that the session contains data in this key.
It shouldnt matter where I am storing the data (cookies, vs db, etc), right?
I have a link with a querystring with a unique ID that is to take a file in rar format and I'm supposed to download this file, extract the file inside and then salvarlo.
View 3 RepliesI have been trying unsuccessfully to retrieve a Session varaible from within an ASHX file that i'm using to build an XML file.
What I am trying to achieve is quite simple really.My ASHX file is used to dynamically build an XML file so that I can then bind it to a TreeView control later on. However the dynamic part isn't quite working because the ID that I need from the session seems to not be passed into the ASHX file.
I have tried using the following methods to do this:
1) Include interfaces IRequiresSessionState and IReadOnlySessionState
2) Tried accessing the value like this: Session["ID"] or context.Session["ID"] or HttpContext.Current.Session["ID"]
I am setting the Session variable in the MasterPage's code behind.
How can i use querystring for this-
Here in below code i have used querystring for sending imagename from this page to another page. Now i just want that with this imagename in also want to send span element's text with same querystring.How can i achieve this?
[Code]....
what i will do is upload the mp3 files in my directory and called the file name on button click event in query string how can i pass query string vlaue to this html tag.
<audio controls>
<source src="horse.ogg" type="audio/ogg">
<source src="horse.mp3" type="audio/mpeg">
Your browser does not support the audio tag.
</audio>
The following code works well as long as I pass a querystring value to the datalist.
Private Sub BindGrid()
Dim id As Integer = Integer.Parse(Context.Request.QueryString("id"))
Dim strConnString As String = ConfigurationManager.ConnectionStrings("Conn").ConnectionString
Using con As New SqlConnection(strConnString)
Using cmd As New SqlCommand()
cmd.CommandText = "select Id, Name from tblFiles where Id=@Id"
[Code] ......
However, the page errors with the message "Value cannot be null." if I don't pass a value. I know that DataList does not have an EmptyItem Property like a Gridview control. I do not want the page to error if I don't pass a value. Need info to deal with empty values in a datalist.
Most websites have pointed me to this code to use:
<FooterTemplate>
<asp:Label ID="lblEmpty" Text="No Result" runat="server"
Visible='<%#boolean.parse(([b]list[/b].Items.Count=0).ToString())%>'>
</asp:Label>
</FooterTemplate>
The 'list' throws an error. The error is "Too few type arguments to 'System.COllections.Generic.List". I am not sure if the code is written in C# and that is what is causing the error. It seems that it should work but I can not figure out the 'list' error.
I m using multiple sitemaps in my website. The providers are defined in web.config file as:
[Code]....
[Code]....
Now I m trying to modify one of my xml file in memory to dynamically populate querystring but when I use
Dim currentNode
As
SiteMapNode =
SiteMap.CurrentNode.Clone(True)
I get Null in my currentNode and I cant point to the node.