Web Forms :: How To Use Session In Generic Handler
May 7, 2015i want to access session value after login ..temrory procedure i knw but i heard about ashx file to manage session so what is the method to use it?
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Similar Messages:
Session Not Working In Generic Handler .ashx In Firefox?
Apr 28, 2010I have created .ashx which implemented IRequiresSessionState, so I can create session variables in that ashx, it worked in IE, but doesn't work in Firefox.When access this session variable from other pages it's NULL.
View 1 RepliesFlash - Can't Get Session In Generic Handler (.ashx) When Using Firefox Or Chrome Except IE
Nov 5, 2010im now using FancyUpload (flash upload) to allow user to upload files in a small project. I use Generic Handler to handler in server when user uploads his file, but i'm getting error: Can't get session in Generic Handler (.ashx) when using Firefox or Chrome etc except IE I read so many solution and finally found out that Flash has some bug that can't send cookie in Firefox or Chrome except IE, Maybe i can check the session in Flash before it's start to send the file to the server or check session in Generic Handler before save it
View 2 RepliesState Management :: Setting Session Values In Generic Handler And Accessing Them From A Page?
Jun 10, 2010I have a generic handler in which I fill up a Session variable. I implemented the IRequiresSessionState interface, so it shouldn't be a problem.
In a given page, I want to display that value, but it seems like the value is always empty. Is it because the session that is accessed and written to in the handler isn't the same one that is used on this page?
In the handler, I used context.Session["EID"] = "somevalue";
edit: i found out what the issue is but I do not know how to solve it. It's because I have this Java applet which reads out an eID, calls the handler to store the data, but the session used by the applet is not the same as the session used by the browser... so how could I exchange this data in a safe way?
Web Forms :: Download File Using Generic Handler
May 26, 2013I want to download any type of file on button click,so have created a .ashx page and redirected the .aspx page to the .ashx page.Is this way correct to do the task.Below mentioned code works fine.
<%@ WebHandler Language="C#" Class="Handler" %>
using System;
using System.Web;
public class Handler : IHttpHandler {
public void ProcessRequest (HttpContext context) {
var fileName = "Tracing.pdf";
[Code] ....
Web Forms :: JSON Generic Handler With CallBack
Jun 16, 2015I need to provide the json string as response to the request made using webrequst as : [URL] ....
Above request will come from other application using webrequest ...
How to implement the page(aspnet.aspx) which handles the request and gives the json string as response. I know how to made webrequest. I am struggling at server end. How to receive request and give response as json string.
Web Forms :: Generic Handler Compilation Error VS 2005?
Feb 10, 2010I have write a simple generic handler with VB as the language.
I am then trying to access the static properties of the handler via an aspx page using <%= handlerclassname.propname %> code.
However it is failing to compile. The compiler throws an error Name HandlerClassname is not declared.
I have checked in my code about namespace or something like that, but there aren't any.
Compilation option in web.config is
<compilation
debug="true"
strict="true"
explicit="true">
Web Forms :: How To Do Fileupload (on Change) Using JavaScript Generic Handler
Jul 4, 2012How can I do asp.net fileupload (on change) using javascript, generic handler?
View 1 RepliesWeb Forms :: Read Image From Generic Handler And Allow Users To Download It
Jul 10, 2012I am generating an image using handler and showing that image on image control. Now I want to download same image which is generated using handler. In my handler, I am passing imagepath and one querystring and retrieving some data from database and watermark that content to my image. How to download that same image.
Code:
protected void Page_Load(object sender, EventArgs e) {
if (Request.QueryString.HasKeys()) {
string Code = Request.QueryString["Code"].ToString();
Session["Code"] = Code;
imgCoupon.ImageUrl = String.Format("ImageHandler.ashx?ImageUrl=" + Server.MapPath("Images/coupon.jpg") + "&Code=" + Code + "");
[Code] ....
Web Forms :: How To Resize Images Proportionally (aspect Ratio) Using Generic Handler
May 7, 2015I have images of big size. I want to resize them according to their width and height. If width is bigger than height then maximum width will be 650px and height will in proportion of width. If height is bigger than width then maximum height will be 650px and width will be in proportion of height. How I will resize images proportionally using handler in ASP.Net,C#.
View 1 RepliesWeb Forms :: Fetching Of Files Saved In Database Using Generic Handler Is Slow
Jul 8, 2013I have used [URL]....
above method to save and retreve files from sql server database. I have uploaded around 50-60 images as jpg. But it taking so much time to get display online. but it's working faster when accessing from local database.
There's the page where images are displaying [URL]....
Is the speed for images retreiving from sql database is slower as compared to retrieving images from folder..?
.vb code:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
scroll = fillbannerpics()
End If
End Sub
[CODE]..
Web Forms :: Bind Image Control With Captcha From Generic Handler Using JQuery
Jul 11, 2012How can I bind image control with captcha from generic handler using jquery.
View 1 RepliesHandler And Generic Handler?
Mar 16, 2010In Visual Studio 2010, when you say new Item, you can see Asp.NET Handler and Generic Handler. Can you tell me what's the difference, I think it came with .NET 4.0 because I couldn't find related thins on Google.
View 1 RepliesAsp.Net Routing To A Generic Handler?
Sep 20, 2010I Have a generic handler that's serving member logo images:
http://site.com/logo.ashx?memberid=123
Now, I want to use it by caling a url like:
http://site.com/logo/john.jpg
So I would create a route for that (pattern: "logo/{username}.jpg"). But, my problem is - how do I retrieve {username} when inside ProcessRequest() of my generic handler? It's not a page, so I can't get Page.RouteData.Values.
Looking For A Generic Handler / Service For Mongodb?
May 25, 2010I am new to MongoDB and have a perfect place in mind to use it. However, it's only worth it if I can make the queries from JavaScript and return JSON.
What's the easiest way I can implement a generic service/handler in asp.net/c# that would allow me to interact with mongodb via JavaScript? I understand JavaScript can't call mongodb directly, so the next best thing is what I'm looking for.
C# - Dynamic Image (from Db) Using Generic Handler
Feb 9, 2010I'm trying to using a Generic Handler to retrieve and display images that are stored in a database.
But its just not working. Ive tried verious of the code below, but I cant seem to get it to work.
<%@ WebHandler Language="C#" Class="IconsDb" %>
using System;
using System.Web;
using System.Linq;
using System.Data.Entity;
[Code]....
Ajax - .net Generic Handler Encoding ?
Sep 6, 2010I'm sending values to Generic Handler via Ajax like that way.
xmlHttpReq.open("GET", "AddMessage.ashx?" + (new Date().getTime()) +"&Message=" + Message,true);
when message contains they are looking like that on Handler in context.Request. these characters are looking as it should. But in context.Request.Url they are looking like and when i want QueryString values it gives me what can i do?
Secure Generic Handler Calls?
Jul 9, 2010I am creating a myspace application and for some database entries I am using generic handlers which I have hosted on another website. From my myspace application I use ajax calls to those handlers to perform the activities that I want. I want to know how can I make these ajax calls secure? I mean I want to be sure that the handlers are being called by only the myspace app and not by entering url into the browser etc.
View 2 RepliesHow To Get The Virtual Path Of A File From A Generic Handler
Mar 22, 2011How can i resolve a virtual path to a file into a path, suitable for the browser, from within a generic .ashx handler?
e.g. i want to convert:
~/asp/ClockState.aspx
into
/NextAllowed/asp/ClockState.aspx
If i were a WebForm Page, i could call ResolveUrl:
Page.ResolveUrl("~/asp/ClockState.aspx")
which resolves to:
/NextAllowed/asp/ClockState.aspx
But i'm not a WebForm Page, i'm a generic handler. You know, that IHttpHandler object with all kinds of things injected:
[Code]....
C# - Send Html Text To Generic Handler?
Mar 1, 2011I have a WYSIWYG editor on one of my forms and I want to send the contents of the editor to an ASP.NET generic handler for processing via an Ajax call.
I am having a little bit of trouble parsing the html received.
Client Side:
$(function(){
$('.send').bind('click', function(event){
var message = $('#TxtMessage').htmlarea('toHtmlString');
message = escape(message);
[Code]....
So the problem is that even when I call Server.HtmlDecode(string) the message is garbled.
Serving An Image With A Generic Handler Within A List View. Is It Possible
Feb 27, 2011Currently in my webpage i load images to the ListView object as follows...
<ContentTemplate>
<asp:ListView ID="ListView1" runat="server">
<layouttemplate>
[code]...
Content Type When Serving A File In A Generic Handler?
Dec 10, 2010I'm busy writing a handler to serve various documents for download or presentation in web forms pages. The documents range from various image formats, to PDF, to MS Office documents, to generic binaries. My basic draft of the download process is as below:
[code]....
However, I have some misgivings about lumping all documents together as application/octet-stream, and I would prefer, if feasible, to use a more specific content type per document type. I have a DB table for document types where I could store this. Am I going in the right direction, and if so, where can I find a suitable starting list of content types for document types?
C# - PlatformNotSupportedException When Saving A File From Silverlight Through A Generic Handler
Jul 30, 2010I have a Silverlight application hosted in an ASP.NET site, through which I'm starting an HttpWebRequest to a Generic Handler in order to save a CSV file to the user's machine.
From the Silverlight app, a Uri is constructed with parameters to make the CSV file server-side. A button is clicked which triggers the following:
string httpHandlerName = "HttpDownloadHandler.ashx";
// CustomUri handles making it an absolute Uri wherever we move the handler.
string uploadUrl = new CustomUri(httpHandlerName).ToString();
UriBuilder httpHandlerUrlBuilder = new UriBuilder(uploadUrl);
httpHandlerUrlBuilder.Query = string.Format("{3}startdate={0}&enddate={1}&partnerId={2}", startDate, endDate, partnerId, string.IsNullOrEmpty(httpHandlerUrlBuilder.Query) ? "" : httpHandlerUrlBuilder.Query.Remove(0, 1) + "&");
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(httpHandlerUrlBuilder.Uri);
webRequest.Method = "POST";
webRequest.BeginGetResponse(new AsyncCallback(GetResponseCallback), webRequest);
Now here is the ProcessRequest code from the HttpDownloadHandler.ashx
public void ProcessRequest(HttpContext context)
{
_httpContext = context;
string partnerId = _httpContext.Request.QueryString["partnerId"];
string startDate = _httpContext.Request.QueryString["startDate"];
string endDate = _httpContext.Request.QueryString["endDate"];
ExportCsvReport exportCsv = new ExportCsvReport();
_csvReport = exportCsv.ExportMemberRegistrationReport(partnerId, startDate, endDate);
context.Response.Clear();
context.Response.AddHeader("content-disposition", "attachment; filename=Report.csv");
context.Response.ContentType = "text/csv";
context.Response.Write(_csvReport);
}
Here is the HttpResponse header information that comes back when the Save File Dialogue refuses to appear:
{System.Web.HttpResponse}
Buffer: true
BufferOutput: true
Cache: {System.Web.HttpCachePolicy}
CacheControl: "private"
Charset: "utf-8"
ContentEncoding: {System.Text.UTF8Encoding}
ContentType: "text/csv"
Cookies: {System.Web.HttpCookieCollection}
Expires: 0
ExpiresAbsolute: {1/1/0001 12:00:00 AM}
Filter: {System.Web.HttpResponseStreamFilterSink}
HeaderEncoding: {System.Text.UTF8Encoding}
Headers: 'context.Response.Headers' threw an exception of type 'System.PlatformNotSupportedException'
IsClientConnected: true
IsRequestBeingRedirected: false
Output: {System.Web.HttpWriter}
OutputStream: {System.Web.HttpResponseStream}
RedirectLocation: null
Status: "200 OK"
StatusCode: 200
StatusDescription: "OK"
SubStatusCode: 'context.Response.SubStatusCode' threw an exception of type 'System.PlatformNotSupportedException'
SuppressContent: false
TrySkipIisCustomErrors: false
When I navigate to localhost/HttpDownloadHandler.ashx while the site is up, without initiating it from within the Silverlight app - the Save File Dialogue appears just fine, it seems to be a case where Silverlight is not accepting the response header properly.
Configuration :: Web Setup Does Not Install Generic Handler (ashx)
Jul 21, 2010I've created a Web application (VS2008) that contains a single Generic Handler (handlername.ashx) and a web.config. I've also added a Web Setup project to use for deployment that uses the primary output from the Handler project. Install works without any errors and all the referenced DLLs are installed in the target location, with one issue. It doesn't install the ASHX file or the web.config.
Publishing the web app to the target location works as expected (includes both DLLs and the ASHX/Config files).
Is there something specific I need to do for the Web setup to include the ASHX/Config files?
HttpHandlers / Modules :: Cannot Retrieve An Image Using A Generic Handler
Mar 26, 2010I wrote a generic handler like this:
[Code]....
and on the other page I would like to retrieve the database image using :
<img alt="" src="ShowImage.ashx?ID=467711" />
but I am getting nothing in this case. The picture exists and there are 91000 bytes in array.