DataSourceViewOperationCallback DataSourceViewOperationCallback DataSourceViewOperationCallback DataSourceViewOperationCallback Delegate

Definition

Represents the asynchronous callback method that a data-bound control supplies to a data source view for asynchronous insert, update, or delete data operations.

public delegate bool DataSourceViewOperationCallback(int affectedRecords, Exception ^ ex);
public delegate bool DataSourceViewOperationCallback(int affectedRecords, Exception ex);
type DataSourceViewOperationCallback = delegate of int * Exception -> bool
Public Delegate Function DataSourceViewOperationCallback(affectedRecords As Integer, ex As Exception) As Boolean 

Parameters

affectedRecords
Int32 Int32 Int32 Int32

The number of records that the data operation affected.

ex
Exception Exception Exception Exception

An Exception, if one is thrown by the data operation during processing.

Return Value

System.Boolean

A value indicating whether any exceptions thrown during the data operation were handled.

Inheritance
DataSourceViewOperationCallbackDataSourceViewOperationCallbackDataSourceViewOperationCallbackDataSourceViewOperationCallback

Remarks

By default, ASP.NET Web page and control execution is synchronous. However, data source controls can be extended to support asynchronous data retrieval and data operations. The DataSourceView object supports the Insert, Update, and Delete methods for asynchronous data processing. The DataSourceViewOperationCallback delegate is passed to the data source view by a data-bound control, so that the view can call this delegate when asynchronous processing is complete and notify the data-bound control of the operation's outcome.

Extension Methods

GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate)

Gets an object that represents the method represented by the specified delegate.

Applies to

See also