SyncTable.CreationOption 属性
获取或设置表示在客户端数据库中创建表时要执行的操作的 TableCreationOption 枚举值。
命名空间: Microsoft.Synchronization.Data
程序集: Microsoft.Synchronization.Data(在 microsoft.synchronization.data.dll 中)
语法
声明
Public Property CreationOption As TableCreationOption
用法
Dim instance As SyncTable
Dim value As TableCreationOption
value = instance.CreationOption
instance.CreationOption = value
public TableCreationOption CreationOption { get; set; }
public:
property TableCreationOption CreationOption {
TableCreationOption get ();
void set (TableCreationOption value);
}
/** @property */
public TableCreationOption get_CreationOption ()
/** @property */
public void set_CreationOption (TableCreationOption value)
public function get CreationOption () : TableCreationOption
public function set CreationOption (value : TableCreationOption)
属性值
一个 TableCreationOption 枚举值,表示在客户端数据库中创建表时要执行的操作。
备注
TableCreationOption 属性确定如何处理客户端数据库中的表创建,特别是与数据库中现有的同名表相关时。有关更多信息,请参见如何初始化客户端数据库和处理表架构。
示例
下面的代码示例摘自从 SyncAgent 派生的类。代码创建两个同步组和三个同步表。Customer
表添加到 Customer
组,OrderHeader
和 OrderDetail
表添加到 Order
组。所有表都仅限下载。如果某个表在客户端存在,则会在初始同步期间删除并重新创建该表。若要在完整示例上下文中查看此代码,请参见如何筛选行和列。
//Create two SyncGroups so that changes to OrderHeader
//and OrderDetail are made in one transaction. Depending on
//application requirements, you might include Customer
//in the same group.
SyncGroup customerSyncGroup = new SyncGroup("Customer");
SyncGroup orderSyncGroup = new SyncGroup("Order");
//Add each table: specify a synchronization direction of
//DownloadOnly.
SyncTable customerSyncTable = new SyncTable("Customer");
customerSyncTable.CreationOption = TableCreationOption.DropExistingOrCreateNewTable;
customerSyncTable.SyncDirection = SyncDirection.DownloadOnly;
customerSyncTable.SyncGroup = customerSyncGroup;
this.Configuration.SyncTables.Add(customerSyncTable);
SyncTable orderHeaderSyncTable = new SyncTable("OrderHeader");
orderHeaderSyncTable.CreationOption = TableCreationOption.DropExistingOrCreateNewTable;
orderHeaderSyncTable.SyncDirection = SyncDirection.DownloadOnly;
orderHeaderSyncTable.SyncGroup = orderSyncGroup;
this.Configuration.SyncTables.Add(orderHeaderSyncTable);
SyncTable orderDetailSyncTable = new SyncTable("OrderDetail");
orderDetailSyncTable.CreationOption = TableCreationOption.DropExistingOrCreateNewTable;
orderDetailSyncTable.SyncDirection = SyncDirection.DownloadOnly;
orderDetailSyncTable.SyncGroup = orderSyncGroup;
this.Configuration.SyncTables.Add(orderDetailSyncTable);
'Create two SyncGroups so that changes to OrderHeader
'and OrderDetail are made in one transaction. Depending on
'application requirements, you might include Customer
'in the same group.
Dim customerSyncGroup As New SyncGroup("Customer")
Dim orderSyncGroup As New SyncGroup("Order")
'Add each table: specify a synchronization direction of
'DownloadOnly.
Dim customerSyncTable As New SyncTable("Customer")
customerSyncTable.CreationOption = TableCreationOption.DropExistingOrCreateNewTable
customerSyncTable.SyncDirection = SyncDirection.DownloadOnly
customerSyncTable.SyncGroup = customerSyncGroup
Me.Configuration.SyncTables.Add(customerSyncTable)
Dim orderHeaderSyncTable As New SyncTable("OrderHeader")
orderHeaderSyncTable.CreationOption = TableCreationOption.DropExistingOrCreateNewTable
orderHeaderSyncTable.SyncDirection = SyncDirection.DownloadOnly
orderHeaderSyncTable.SyncGroup = orderSyncGroup
Me.Configuration.SyncTables.Add(orderHeaderSyncTable)
Dim orderDetailSyncTable As New SyncTable("OrderDetail")
orderDetailSyncTable.CreationOption = TableCreationOption.DropExistingOrCreateNewTable
orderDetailSyncTable.SyncDirection = SyncDirection.DownloadOnly
orderDetailSyncTable.SyncGroup = orderSyncGroup
Me.Configuration.SyncTables.Add(orderDetailSyncTable)
请参阅
参考
SyncTable 类
SyncTable 成员
Microsoft.Synchronization.Data 命名空间