I am using PageMethods in my javascript to call a function in my c# code which is static. In that code, all I have was "response.redirect("default.aspx").. but somehow it never gets redirected. It just stays there.
Code:
function testredirect()
PageMethods.Navigation()
C# code:
Public static void Navigation()
Response.redirect("Default.aspx");
I have a project that uses PageMethods to call functions on the server. The server functions (written in C#) return the values as array of strings, without doing any kind of serialization and in the client side (from Js) the accessing of the return values is by using static variable called arguments. I found that sometimes for some users (cases are not repro) sometimes an exception occured
"WebServiceFailedException the server method 'Foo' returned invalid data. the 'd' property is missing from JSON."
Some searching on google I found that people are serializing the return values using DataContractJsonSerializer class and in js accessing the return value using one of the callback function Example:
function OnRequestComplete(result,
userContext, methodName) {
var Person = eval('(' + result + ')');
alert(Person.Forename);
alert(Person.Surname); }
So is the first technique is correct? or what?
P.S:
the function on the server is defined on the default.aspx.cs file as follows:
[System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
public static string[] Foo(string s);
from the client side the calling is as follows
PageMethods.Foo("value",OnSuccess);
Also all the users have the same browser version (IE8)
i have used PageMethods to access the server side functions in javascript , but now my problem is that with pagemethods your controls will not go throught the full page lifecyle and these leads me to have "Object not set for an instance of an object" error. Now can someone come with a differnt approach without using pagemethods. What i want is to call a server side function , i dont want to pass any parameters to it
View 5 Repliesi have used PageMethods to access the server side functions in javascript , but now my problem is that with pagemethods your controls will not go throught the full page lifecyle and these leads me to have "Object not set for an instance of an object" error. Now can someone come with a differnt approach without using pagemethods. What i want is to call a server side function , i dont want to pass any parameters to it
View 6 RepliesI am designing an ASP.NET web application (.NET 4.0) which basically has a page that should interact with the code behind every 1-2 seconds (Using Client callbacks or PageMethods via ScriptManager or jQuery.ajax) It'll be hosted on an intranet, so a 1-2 second refresh rate is kind of reasonable.
How can I make the page to access the web service/pagemthod in the code behind in a timeply manner (e.g. every 1 second). Should I use a javascript timer (I'm not familiar with javascrip very much)?
Although the site is hosted on an intranet, but I still need to implement a good approach to reach the desired refresh rate. the amount of data being transfered is about 1KB in each interaction. What are your recommendations on my design regarding this? (using callbacks or ScriptManager or jQuery.ajax,...
I am using JavaScript's PageMethod functionality where I am invoking a PageMethod which works like a gem. However I am having an issue in accessing the HttpContext's state which returns me a value "SYSTEM" for
HttpContext.Current.User.Identity.Name
which is not the actual current User Name.
I know there are couple options like storing HttpContext.Current in a Session or saving Context's state in some other custom container but given a web farm environment I am assuming that this will not work as expected.
Here is the code I am working on with
function MyFunction(){
PageMethod.MyPageMethod();
}
here is the signature of the server method
[System.Web.Services.WebMethod()]
public static void MyPageMethod()
{
// gives me "SYSTEM"
var user = HttpContext.Current.User.Identity.Name;
}
Also if I use the above code to access user name in OnLoad event of the page then it works fine and returns me the CurrentUserName.
I am trying to get the above code to work in an ASP.NET Webform... :)
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Dispatcher:
[Code]....
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I do return this.File(filename, contentType, download name);
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For eg., if I redirect from page 1, the button should be back to page 1 and I redirect from page 2, the button should be back to page 2. I don't want it to be a back button by the way.
How can I set this condition? Url.Action redirects to a page but how can I get the page from which I have redirected?
Also the form which when submitted should redirect back to the page from which the form page has been accessed.
Why Ajax pagemethods are static?
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the redirection.
<!--<authentication mode="Forms">
<forms loginUrl="~/Login" timeout="2880"/>
</authentication>-->
Everything works well when I comment the attribute Authentication at web.config or if after I logged-in.
Before this happens, I delete all files at (C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files). Don't you think this is the reason?
I'm under MVC, even if I remove the action filter Authorize(), I still get redirected to 401.
</httpModules>
<identity impersonate="true" />
</system.web>
I use VWD 2008 SP1 and MSSQL2005.
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[Code]....
my controller code looks like this:-
[Code]....
my view code looks like this:-
[Code]....
i got this error "PageMethods is undefined" on my AjaxEnabledWebsite. Any one had the same problem?
Client Side Code:
[code]....
Can I call a PageMethod and then call another PageMethod before the first has finished? Are concurrent calls to PageMethods allowed?
View 1 RepliesI wrote a code to call some event...
[Code]....
and
[Code]....
js calls this code and I get object reference not set to an instance of an object
Ran into a bit of problem when using PageMethods when calling a webmethod in the code-behind. My markup page has a radgrid which gets populated via the objectdatasource.Pagemethods works and returns data as expected when the objectdatasource binds the radgrid with some data but not when the objectdatasource returns nothing, i.e. radgrid is empty. PageMethods call has got nothing to do with the objectdatasource, I'm simply using its output to build a list of checkboxes dynamically on the client side using Javascript. And this is how my code snippets looks like:Markup page:
<script type="text/javascript">
function CallGetARInvoices(src,dest)
{
[code]...
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<script>
window.onbeforeunload = CallMe;
function CallMe() {
[code]...
[Code]....
DropDownList and PageMethods?
I have a page that I want only anonymous users to see, and authenticated users to be redirected. So, like this:
<location path="Login_ForgotUserID.aspx">
<system.web>
<authorization>
<allow users="?" />
<deny users="*" />
[code]...