property can be an instance method or a static (Shared in Visual Basic) method.If it is an instance method, the business object is created and destroyed each time the method that is specified by the property is called.I have two parameter in it but it expecting three parameters. The page just posts back with the Edit Item Template controls still showing. The Drop Down List displays the name of a Northwind employee, while the Text Box controls are used to enter and update address information. Because the This example has a text box that accepts user input, which is a potential security threat. NET Web pages validate that user input does not include script or HTML elements. When the Update method is called, the data fields from the data-bound control, the parameters that were created declaratively in the Update Parameters element, and the parameters that were added in the Updating event handler are all merged.(For more information, see the preceding section.) The Object Data Source control then attempts to find a method to call.
It seems that some exception is happening which is not handled or caught by the debugger.
operation is performed, the On Updating method is called to raise the Updating event.
You can handle the Updating event to examine the values of the parameters and to perform any preprocessing before an operation completes, the On Updated method is called to raise the Updated event.
The method is resolved after the parameters are merged.
Method resolution is discussed in the next section.