When i set session variable in aspx page , I couldnt access it in webservice.It returns null value,I think, Microsoft.Web.Services.ScriptHandlerFactory kills session variables.How can overcome this problem?

Thanks;

For this to work, you need to mark your web method appropriately.  e.g.

[WebMethod(EnableSession=true)]
...

David

It doesnt work.I want to reach it in select method of Listview's webservice.But it returns null.

In aspx page ;

 protected void Page_Load(object sender, EventArgs e){
     Session["test"] = "hello";
   }

In webservice ;

    [DataObjectMethod(DataObjectMethodType.Select)]
    [WebMethod(EnableSession = true)]
    public BLL.Collections.ImkbAtlas[] SelectImkbRows()
    {
        string sessionString = (string)Session["test"];
        return MainPageWebService.Data3.ToArray();
    }

This is different: your method is not directly a Web Method, but a data method, which works differently.  Currently, there is no easy way to enable Session state in this case, but we are working on making this work in a future build.

David

I don't know if this may help. Currently I spend some time on it also. I noticed that it says "New line in constant" when I try to watch on this.Context.Request.Cookies[""ASP.NET_SessionId"] at web service data call, however, fidler shows that this cookie passed well.

Best regards

It doesnt work. :( I cant access cookies that created in aspx page from DataService.Can you send sample code part?

Thanks.... 

Please see my previous response:

This is different: your method is not directly a Web Method, but a data method, which works differently.  Currently, there is no easy way to enable Session state in this case, but we are working on making this work in a future build.

The little issue above with the missing quote is unrelated.  Sorry for the confusion.

David

Thanks alot davidbb it works wonders for me....

Joel,

Did the above solution work for you and you were able to access session state by placing the (EnableSession = true) next to your WebMethod decleration?

I have a web service method called DeleteTask(int task_key) and I am trying to figure out the best method for authenticating this web service call. I figured I could keep the user's User_Key in session state and perform a simple authentication against the User_Key in session when the DeleteTask() method is called...is this how you would authenticate a web service call?

Thanks,
Greg

If you're using forms Authentication you should just be able to use the following

HttpContext.Current.User.Identity.IsAuthenticated

which will use the FormsAutentication Cookie, hence no need for Session State.

Thanx!

for that attribute, it is super in Ajax environment....