System.Data Namespace

---

Represents the method that will handle the the ColumnChanging event.

[ VB ]
Public Delegate Sub DataColumnChangeEventHandler ( _
   ByVal sender As Object, _
   ByVal e As DataColumnChangeEventArgs _
)

[ C# ]
Public delegate void DataColumnChangeEventHandler (
   object sender,
   DataColumnChangeEventArgs e
);

[ C++ ]
Public __gc __delegate void DataColumnChangeEventHandler (
   Object* sender,
   DataColumnChangeEventArgs* e
);

In [ JScript ], you can use the delegates in the .NET Framework, but you cannot define your own.

The declaration of your event handler must have the same parameters as the DataColumnChangeEventHandler delegate declaration.

sender

The source of the event.

e

A DataColumnChangeEventArgs that contains the event data.

When you create a DataColumnChangeEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, until you remove the delegate. For more information about delegates, see Web Forms Events and Handlers

DataColumn

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