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Parameter 类 (Microsoft.Office.Server.ApplicationRegistry.MetadataModel)

  • 项目

Represents the in, inout, out and return parameters of each method.

命名空间: Microsoft.Office.Server.ApplicationRegistry.MetadataModel
程序集: Microsoft.SharePoint.Portal （在 microsoft.sharepoint.portal.dll 中）

语法

声明
<SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel:=True)> _
<SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel:=True)> _
Public Class Parameter
    Inherits MetadataObject
用法
Dim instance As Parameter

[SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel=true)] 
[SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel=true)] 
public class Parameter : MetadataObject

备注

In cases where a Web method returns void, it is likely returning a value in an out parameter. You must describe that parameter as the return parameter in the metadata. A return parameter in the Business Data Catalog is the value it should read from the back-end application. Parameters contain information such as:

  • The direction of the parameter (In, Out, InOut, Return).

  • The ordinal number of the parameter in the method signature.

  • Whether the parameter is optional.

  • The TypeReflector. Every Parameter object contains a TypeReflector. The TypeReflector is responsible for instantiating a Parameter object filled with default values according to the structure indicated by the TypeDescriptor, and getting or setting values for individual fields referenced by type descriptors in the instantiated Parameter object.

For Web methods, parameter names are tokens used by the Business Data Catalog. Though they must be unique for a given method, you can name them anything. TypeDescriptor names, however, must exactly match the structures and fields returned by the back-end application methods.

In the case of a database, the parameter names must exactly match the parameter names in the stored procedure or SQL query.

继承层次结构

System.Object
   Microsoft.Office.Server.ApplicationRegistry.MetadataModel.MetadataObject
    Microsoft.Office.Server.ApplicationRegistry.MetadataModel.Parameter

线程安全性

此类型的任何公共静态（在 Visual Basic 中共享）成员是线程安全的。不保证任何实例成员都是线程安全的。

另请参阅

参考

Parameter 成员
Microsoft.Office.Server.ApplicationRegistry.MetadataModel 命名空间