Hello experts,
  I have an Ajax page in which on a client side code, I call a PageMethods statement to get the result from a static server-side WebMethod (webservice function) function on the page itself on server side. I'd like in that static server-side WebMethod I am able to access a gridview control which already declare on the markup part of my Ajax page. Howevver,I always get the error like "a static function tried to access non-static object or variable ...."
  Please give me any idea to get through this problem since I's like to access or refer the gridview control on that server-side WebMethod?
Thank you in advance.
johnaspnet

Static methods are not related to any instance of the class. So you cannot access any member variable(gridview) from a static function in the page. Instead use a non static method if you want to access the gridview in the page

Vik2000, thanks for your reply. However, by the definition on the server side of a webmethod, I must use the method as a static one. For example,
[WebMethod]
public static String myPageMethod(String arg)
{

    .... 
}

So how can I use a non-static web method to access my gridview?

Vik2000, thanks for your reply. However, by the definition on the server side of a webmethod, I must use the method as a static one. For example,
[WebMethod]
public static String myPageMethod(String arg)
{

    .... 
}

So how can I use a non-static web method to access my gridview?

Use javascript to trigger the updatepanel:

http://encosia.com/2007/07/13/easily-refresh-an-updatepanel-using-javascript/

Best Regards, 

Thank you Jin

Thank you, Jin.
The method on

http://encosia.com/2007/07/13/easily-refresh-an-updatepanel-using-javascript/

causes the whole-page post back. Is there any way to use javascript to trigger UpdatePanel in partial postback way instead whole-page posback to reduce overhead for the aspx page?

Thank you in advance.
johnaspnet

Thank you, Jin.
The method on

http://encosia.com/2007/07/13/easily-refresh-an-updatepanel-using-javascript/

causes the whole-page post back. Is there any way to use javascript to trigger UpdatePanel in partial postback way instead whole-page posback to reduce overhead for the aspx page?

Is there a better way to go with partial postback using client side codes?
Thank you in advance.
johnaspnet

Give me any idea please? Thanks very much.
johnaspnet

It should be partial postback.

If it is a partial postback, then how can I use an HTML control (not server control) like a button to trigger an UpdatePanel server control for such partial postback? Can you please give me any sample code for such?
Thank you very much.
johnaspnet

Hi Jin-Yu
Thank for your reply.
My question for you is if you call  __doPostBack('UpdatePanel1', ''), then you make the entire-page postback or a partial postback for the UpdatePanel control only? It seems to me that __doPostBack does the whole postback and costs overhead, does n't it? Please let me know.
johnaspnet