I tried the Jump Start: Web Forms Application - VB .NET in MM .NET Developer's Guide. I changed AllowPaging of grdOrderDetail to true. Then I run the Order Edit form. When I click the second page of grdOrderDetail grid view, the exception occur. The exception message as below:

The GridView 'grdOrderDetail' fired event PageIndexChanging which wasn't handled. 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.Web.HttpException: The GridView 'grdOrderDetail' fired event PageIndexChanging which wasn't handled.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Did I use the wrong way to do paging for mmGridView? May I know how to do it? Is there any example, which has paging for mmGridView?

Thanks.