AppInstance.TryGetAppDatabaseConnectionDirect 方法 (ClientRuntimeContext, SqlConnection, Boolean)

Retrieves a connection to the app database.

命名空间：  Microsoft.SharePoint.Client
程序集：  Microsoft.SharePoint.Client（位于 Microsoft.SharePoint.Client.dll 中）

语法

声明
Public Shared Function TryGetAppDatabaseConnectionDirect ( _
    context As ClientRuntimeContext, _
    <OutAttribute> ByRef connection As SqlConnection, _
    <OutAttribute> ByRef isReadOnly As Boolean _
) As Boolean
用法
Dim context As ClientRuntimeContext
Dim connection As SqlConnection
Dim isReadOnly As Boolean
Dim returnValue As Boolean

returnValue = AppInstance.TryGetAppDatabaseConnectionDirect(context, _
    connection, isReadOnly)

public static bool TryGetAppDatabaseConnectionDirect(
    ClientRuntimeContext context,
    out SqlConnection connection,
    out bool isReadOnly
)

参数

• context
  类型：Microsoft.SharePoint.Client.ClientRuntimeContext

  Client context to operate with.

• connection
  类型：System.Data.SqlClient.SqlConnection

  Connection object if one could be opened, otherwise 空引用（无 在 Visual Basic 中）.

• isReadOnly
  类型：System.Boolean

  Indicates whether the connection can be used to write data. true if the connection can be used to write data, otherwise false.

返回值

类型：System.Boolean
true if a connection can be opened, otherwise false.

备注

This method only returns connections to the database that are auto deployed. This method may call ExecuteQuery function on the given context.

另请参阅

引用

AppInstance 类

AppInstance 成员

TryGetAppDatabaseConnectionDirect 重载

Microsoft.SharePoint.Client 命名空间