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SyncAdapter.DeleteCommand Property

  • Artigo

Gets or sets the query or stored procedure that is used to delete data from the server database.

Namespace: Microsoft.Synchronization.Data.Server
Assembly: Microsoft.Synchronization.Data.Server (in microsoft.synchronization.data.server.dll)

Syntax

'Declaration
Public Property DeleteCommand As IDbCommand

public IDbCommand DeleteCommand { get; set; }

public:
property IDbCommand^ DeleteCommand {
    IDbCommand^ get ();
    void set (IDbCommand^ value);
}

/** @property */
public IDbCommand get_DeleteCommand ()

/** @property */
public void set_DeleteCommand (IDbCommand value)

public function get DeleteCommand () : IDbCommand

public function set DeleteCommand (value : IDbCommand)

Property Value

An IDbCommand object that contains a query or stored procedure.

Remarks

Synchronization adapter commands enable you to specify the queries and stored procedures that are used to select from and apply changes to the server database. For more information, see How to: Specify Snapshot, Download, Upload, and Bidirectional Synchronization. Each command uses session variables that enable you to pass values during synchronization. These variables are specified like other parameters to queries or stored procedures in ADO.NET commands. For more information, see How to: Use Session Variables.

Example

The following code example creates a command that deletes rows from the Customer table in bidirectional and upload-only synchronization scenarios. The command is a stored procedure that is defined in Setup Scripts for Synchronization Services How-to Topics. To view this code in the context of a complete example, see How to: Handle Data Conflicts and Errors.

SqlCommand customerDeletes = new SqlCommand();
customerDeletes.CommandType = CommandType.StoredProcedure;
customerDeletes.CommandText = "usp_CustomerApplyDelete";
customerDeletes.Parameters.Add("@" + SyncSession.SyncLastReceivedAnchor, SqlDbType.Timestamp);
customerDeletes.Parameters.Add("@" + SyncSession.SyncClientId, SqlDbType.UniqueIdentifier);
customerDeletes.Parameters.Add("@" + SyncSession.SyncForceWrite, SqlDbType.Bit);           
customerDeletes.Parameters.Add("@" + SyncSession.SyncRowCount, SqlDbType.Int).Direction = ParameterDirection.Output;
customerDeletes.Parameters.Add("@CustomerId", SqlDbType.UniqueIdentifier);
customerDeletes.Connection = serverConn;
customerSyncAdapter.DeleteCommand = customerDeletes;

Dim customerDeletes As New SqlCommand()
customerDeletes.CommandType = CommandType.StoredProcedure
customerDeletes.CommandText = "usp_CustomerApplyDelete"
customerDeletes.Parameters.Add("@" + SyncSession.SyncLastReceivedAnchor, SqlDbType.Timestamp)
customerDeletes.Parameters.Add("@" + SyncSession.SyncClientId, SqlDbType.UniqueIdentifier)
customerDeletes.Parameters.Add("@" + SyncSession.SyncForceWrite, SqlDbType.Bit)
customerDeletes.Parameters.Add("@" + SyncSession.SyncRowCount, SqlDbType.Int).Direction = ParameterDirection.Output
customerDeletes.Parameters.Add("@CustomerId", SqlDbType.UniqueIdentifier)
customerDeletes.Connection = serverConn
customerSyncAdapter.DeleteCommand = customerDeletes

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Development Platforms

For a list of the supported platforms, see Hardware and Software Requirements (Synchronization Services).

Target Platforms

See Also

Reference

SyncAdapter Class
SyncAdapter Members
Microsoft.Synchronization.Data.Server Namespace