DataObjectMethodType Enumeration
Identifies the type of data operation performed by a method, as specified by the DataObjectMethodAttribute applied to the method.
Assembly: System (in System.dll)
| Member name | Description | |
|---|---|---|
![]() ![]() | Fill | Indicates that a method is used for a data operation that fills a DataSet object. |
![]() ![]() | Select | Indicates that a method is used for a data operation that retrieves data. |
![]() ![]() | Update | Indicates that a method is used for a data operation that updates data. |
![]() ![]() | Insert | Indicates that a method is used for a data operation that inserts data. |
![]() ![]() | Delete | Indicates that a method is used for a data operation that deletes data. |
The following code example demonstrates how you can apply the DataObjectMethodAttribute to a publicly exposed method and identify the type of data operation it performs as well as whether it is the type's default data method. In this example the NorthwindEmployee type exposes two different data methods: one to retrieve a set of data named GetAllEmployees, and one to delete data named DeleteEmployeeByID. The DataObjectMethodAttribute is applied to both methods.
<DataObjectAttribute()> _ Public Class NorthwindData <DataObjectMethodAttribute(DataObjectMethodType.Select, True)> _ Public Shared Function GetAllEmployees() As IEnumerable Dim ads As New AccessDataSource() ads.DataSourceMode = SqlDataSourceMode.DataReader ads.DataFile = "~/App_Data/Northwind.mdb" ads.SelectCommand = "SELECT EmployeeID,FirstName,LastName FROM Employees" Return ads.Select(DataSourceSelectArguments.Empty) End Function 'GetAllEmployees ' Delete the Employee by ID. <DataObjectMethodAttribute(DataObjectMethodType.Delete, True)> _ Public Sub DeleteEmployeeByID(ByVal employeeID As Integer) Throw New Exception("The value passed to the delete method is " + employeeID.ToString()) End Sub 'DeleteEmployeeByID End Class 'NorthwindData
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
