accessing methods of page when accessing page with a page method
I have a code behind file of an aspx file that looks like this:
public partial class Pages_MyPage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
.....
}
protected int MyMethod()
{
.....
}
[WebMethod]
public static int MyPageMethod()
{
int x = MyMethod();
return x;
}
}
When I'm sending an ajax POST to MyPageMethod, I can't access MyMethod. What's the way around thi开发者_如何学Pythons issue.
Thanks for your suggestions.
MyMethod
will also need to be static.
Think about what your trying to do here -
MyMethod
belongs to a specific instance of a class.
MyPageMethod
belongs to the class itself.
If your running code inside MyPageMethod
, how could you possibly know how to call methods on some other instance of the object. The instance methods may as well not exist at that point in code.
If you are trying to mutate some portion of the page's data from javascript, you have a deep misunderstanding of how asp.net pages work.
At the point javascript is running in the browser, your page object is gone. The server finished the page load and discarded it. On the next post back it will create a new instance, and run through the page life cycle once again.
If you need to access page level state, you will have to store it in a place that is acceptable between post backs, the Session object for instance, with System.Web.HttpContext.Current
WebMethods are static
methods because they don't get a full Page
.
They can only call other static
methods
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