I have implemented AJAX for calling server side function using client side function call i.e Calling server side function using javascript tag by using PageMethod in javascript.
I have few question regarding the same implementation.
[code]....
This FunctionName will be the name of server side function that a developer want to call.
need to send a byte array from javascript into a c# page method. The int and string variables work fine, but when I step through the c# code, the "object" which was the byte array is null, even though I checked to see if it had a value in JS.
var byteArrayObj = GetBinaryDataFromFile(filePath);
var tranAttachmentName = filePath.replace(/^.*\/, '');
PageMethods.AddFileToTran(tranId, tranAttachmentName, byteArrayObj, RefreshPage, onTimeout, onError);
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I want have a web application that I am putting together - but I have started to see that some of the things I am writing are repeated over and over, example -
GetDepartments() in the code behind has all the database connections and is linked to a stored procedure.All it does is return Department Names' and Ids', ie then bind them to a dropdownlist.My question is this I have seen Class files - I want to know if I can put this type of information in there and just call it whereever I need it in the site and then bind to whichever dropdownlist I need to?I have had a look around the net and even saw some examples by scott mitchell - but it used datasets (.xsd) files etc and dont want to be using them, plus it was a little over my head. Does anyone know of some good simple examples out there that I can follow, or maybe some examples on here?
I'm working to move my simple asp.net website to a three layer architecture. Currently I have Linq queries like the one below in my code-behind files. Basically this code snippet retrieves a collection of customer data from the database and then binds it to a grid control.
I'm wondering if someone can guide me on how to rewrite this in order to move it to my newly-created data access layer. I'm thinking I will turn it into a class (e.g. GetUserBoxesByStatus()) that can be reused throughout the site.
var boxes = from p in sbm.Packages
where p.UserID == CurrentUserId && p.StatusID > 1 && p.StatusID < 3
select new { p.PackageTag, p.PackageName, p.DateReceived, p.DateShipped }; [code]....
Some of the options that I've investigated but have not had success implementing are the following:
DataTable --- returning a DataTable seems like the best solution but it also appears to require a lot of potentially unecessarry code to define a table (isn't the data source already mapped in my Linq 2 Entities dbml?)
IEneuerable --- I think I could pass an IEnumerable list between the layers but after reading many tutorials about Linq I'm still a little lost DTO --- Conceptually I think I understand what a DTO is but I am not clear on how to begin implementing this approach POCO --- Again, the concept seems logical enough but I don't know how to put this into practice
how they would tackle this using one of the above or some other solution.
I'm calling PageMethod "SameMethod" from javascript method "caller" so that I can get some values from DB. After I get values, control is continuing in "onSuccess" method. Problem is that I need to use some variable values ("importantValue") from javascript method "caller" in "onSuccess" method.
function caller(){
var importantValue = 1984;
PageMethod.SomeMethod(param1,..., onSuccess, onFailure)
}
onSuccess method should be something like this:
function onSuccess(pageMethodReturnValue, importantValue ){
}
Is it possible and, if it is, how to pass multiple parameters (besides return values of page method) to "onSuccess" method of PageMethod?
I have been given the task to create a TAB control ( probably the Jquery tab control) as the company wants the Lazy loading of data.
The tab control should not have fixed items on it. It should be reusable in different projects . So I cannot fix the items in the tab control. Depending upon the project the tabs can change.
Need some great ideas on how I can achieve it.
Note: I am using MVC, VS 2008, C# for my development.
I can retrieve with JavaScript above the ASP.NET Updatepanel had made a asynchronous postback ?
View 1 RepliesI have a simple aspx file with 2 text boxes and an ajax autocomplete extender attached to textbox2
[code]....
This not working.. How can i make it work?
I have a long running process that i kick off with a pagemethod that normally takes about an hour to complete, when it is finished it returns the result of the method.I then poll with another pagemethod to update the status of the first process.the process is taking 4.5 hours this week which is acceptable and understandable, but the feedback sometimes gives up after a couple of hours and sometimes the main method never returns any feedback to the client.
Regardless of the lack of status updates and final feedback the server still completes the long task.As far as i'm aware we have made no changes to any timeout values.is there a timeout setting that we are hitting that is above 1 hour for ajax methods?
I am using an AJAX.Net to call an ASP.Net PageMethod, which returns JSON serialized JSON data
{"d":"[{"Fromaddress":"testfrom1@test.com","Toaddress":"testto1@test.com"},{"Fromaddress":"testfrom2@test.com","Toaddress":"testto2@test.com"}]"}
The Response Header states the content type as
"Content-Type application/json; charset=utf-8"
However, the data is just available as a string, and does not seem to be available as JSON data from javascript. What do I need to do to work with the returned data as JSON from javascript?
I have a PageMethod that works perfectly well when it either (a) running in the VS dev server, or (b) deployed but marked with UseHttpGet=false.
What doesn't work, and is driving me mad, is having UseHttpGet=true and then deploying it to a test server (Vista & IIS7). It fails to call through the proxy with error code 404 coming back. But it works find if I set UseHttpGet=false.
I have gone through all of the basic stuff I can think to check, and as noted it works perfectly well on the dev box. So there must be something particular about full-blown IIS7 and its config that I am missing..
anything to check in the IIS manager that would cause this to fail? I've tried with forms authentication enabled and disabled, as a few posts mentioned issues with that.
I have a page that requires user login via Forms Authentication. Is it possible to use Page Methods in this page? My current attempt is resulting in the following error:Message: Sys.Net.WebServiceFailedException: The server method 'GetPlanContent' failed with the following error: System.InvalidOperationException-- Authentication failed.
View 2 RepliesI put my ScriptManger on the top level Masterpage with EnablePageMethods set to "true".2. I put a AutoCompleteExtender (AjaxToolkit) on a second level Masterpage which derives from the top level MasterPage. The AutoCompleteExtender is used for search with a TextBox. The PageMethod is defined in the Code Behind of this second level Masterpage.3. I have several Contentpages that derive from the second level Masterpage.Problem: The AutoCompleteExtender does not work and that's probably because the PageMethod is defined in the second level MasterPage in the CodeBehind and not in the Contentpage. Ok, so I'm pretty sure what causes the error,- I do not want to use a WebService, because I don't want the search to become public. And as far as I know you can't define a WebService that is only visible to the Website itself - it's always public.- It would be stupid to put the search on every Contentpage just for the PageMethods sake.
View 1 RepliesMy website is running fine on my local system but when i upload it on IIS6 of my local computer [Ajax.AjaxMethod] is not working. How i will solve it.
View 1 RepliesI have written an application that relies upon PageMethods. It was working fine in .NET 3.5 where I would rely upon exceptions to signify something failing during the call. I would then alert the user to what ever it was that happened. All was working great. I transitioned to .NET 4.0 as I am intrigued by the Parallel Computing improvements. Now any exception that I throw in the PageMethod in the code behind is met with an Unhandled Exception. Nothing has changed other than the target framework.
View 5 RepliesWe have used the ajax toolkit auto complete extender in an intranet app which uses Windows authentication. The auto complete uses a static page method in the page code behind to get the results. Even though the page containing the auto complete is authenticated by the server and the asp.net session id set in the cookie, the initial requests from the auto complete result in 401.1 and after few attempts result in a 200. This irritates the users of the app. Also later on there are 401.1 happening intermittently among the various 200 there by affecting the responses.
I have verified these responses by using Microsoft Network Monitor,Fiddler and Firebug. Also these entries are present in IIS logs. I tried to implement the same with a script service but that too gives same issues. Our site has lots of ajax features and controls and everything is working fine, only this issue is there.
<asp:ScriptManager ID="smHome" runat="server" EnablePageMethods="true" AsyncPostBackTimeout="600"> </asp:ScriptManager>
<CustomControls:StyledAutoCompleteExtender runat="server" ID="acAssociateSmartSearch"
TargetControlID="txtSmartSrch" ServiceMethod="GetAssociateSmartSearchList" MinimumPrefixLength="2"
CompletionListCssClass="sscompletionListElement" CompletionListItemCssClass="sslistItem"
CompletionListHighlightedItemCssClass="sshighlightedListItem" CompletionSetCount="10"
CompletionInterval="500" EnableCaching="true">
I have a long running PageMethod defined in the cs that is being called from javascript and after 4 minutes I am getting the below error and 504 status code for my aspx page and onFail callback is raised.
<HTML><HEAD>
<TITLE>Gateway Timeout - In read </TITLE>
</HEAD><BODY> [code].....
Is it mandatory to pass the Success and Failure method names as parameters while calling server side methods using PageMethods in client script.
I referred to article [URL] ....
asp.net project written with vb:
have an update panel that encapsulates a radiobuttonlist which does not update, in certain browsers, without manual page refresh. i am able to make this work using <asp:postbacktrigger controlid="aControl"/>, but only want to refresh the page if browser
is Firefox or Flock (two browsers having the issue). i am not sure how to do this, but am open to either javascript or code behind. any suggestions?
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Basically i have two asp.net buttons on my asp.net page as follow:
[Code]....
and this is the code behand fo btnSave onclick event:
[Code]....
and this is the code behand of btnPreviwe onclick event:
[Code]....
as you can see, when the btnSave is clicked, it is programmatically clikced the btnPrevew first, and btnPreview registers and fires the required JavaScript. But actually once the btnSave clicked, it does go to the btnPreview_OnClick event, but for some unknow reasons, the javascript in btnPreview_OnClick doesnt work, however, when i just put cstext2.Append("alert('hi')" instead of cstext2.Append("'SaveSignature()'", the javascript does executed, and also if i modifed the asp.net code for btnPreview to this, it works too.
[Code]....
i'm a beginner with c# 2.0 and ajax
i have two radio button and i want to execute a javascript if user selected the second radio button
i want execute a javascript if confirm(message)
but i wonder if it possible to GET the value of the if (confirm) if user has click ok or cancel !?
I am using the javascript alert in code behind but after click the Button i trigers the javascript,it's working fine with the update panel but if i using update panel now action work on my program
View 1 RepliesI have and web application and there are two dropdowns. I want to use Javascipt to populate the the second dropdown on basis of the selection of the first dropdown.
View 2 RepliesA have a web page that does an AJAX callback. When the CallBack event is handled, my ASP.NET code generates some JavaScript that is then returned to the browser. The idea is that this JavaScript will then immediately be executed. The reality is that it isn't....
Here is an example of my server code that handles the callback (the JavaScript has been simplified to a single alert):
[Code]....
I've tried using some of the browser DevTools in IE, Firefox and Chrome, but I can't get them to spot changes after an Ajax event...]
I have an application that needs to display a confirm dialog box. I want to use Javascript to display in .cs file. The dialog box should be fired automatically i.e. it should not be fired by onclick or onclientclick etc.....
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
if ( temp == true ) // checking some condition in application
[code]...