SyncParameter Class

Encapsulates information sent from the client to the server.

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

Syntax

'Declaration
<SerializableAttribute> _
Public Class SyncParameter

[SerializableAttribute] 
public class SyncParameter

[SerializableAttribute] 
public ref class SyncParameter

/** @attribute SerializableAttribute() */ 
public class SyncParameter

SerializableAttribute 
public class SyncParameter

Remarks

Synchronization parameters are typically used to pass filtering information to the synchronization agent. These parameters are then used in commands for the synchronization adapter.

Inheritance Hierarchy

System.Object
  Microsoft.Synchronization.Data.SyncParameter

Example

The following code example is from a class that derives from SyncAgent. This code creates a SyncParameter object that specifies a value for the @SalesPerson parameter. In an application, this value might come from a login ID or other user input. To view code in the context of a complete example, see How to: Filter Rows and Columns.

this.Configuration.SyncParameters.Add(
    new SyncParameter("@SalesPerson", "Brenda Diaz"));

Me.Configuration.SyncParameters.Add(New SyncParameter("@SalesPerson", "Brenda Diaz"))

The following code example is from a class that derives from DbServerSyncProvider. This code specifies which inserted columns and rows to download for the Customer table. You can hardcode a value for SalesPerson. However, it is more common to use a parameter that has a value that can change, as shown in the example. The example passes the filter parameter together with the other parameters that are required to download incremental inserts.

SqlCommand customerIncrInserts = new SqlCommand();
customerIncrInserts.CommandText =
    "SELECT CustomerId, CustomerName, CustomerType " +
    "FROM Sales.Customer " +
    "WHERE SalesPerson = @SalesPerson " +
    "AND (InsertTimestamp > @sync_last_received_anchor " +
    "AND InsertTimestamp <= @sync_new_received_anchor " +
    "AND InsertId <> @sync_client_id)";
customerIncrInserts.Parameters.Add("@SalesPerson", SqlDbType.NVarChar);
customerIncrInserts.Parameters.Add("@" + SyncSession.SyncLastReceivedAnchor, SqlDbType.Timestamp);
customerIncrInserts.Parameters.Add("@" + SyncSession.SyncNewReceivedAnchor, SqlDbType.Timestamp);
customerIncrInserts.Parameters.Add("@" + SyncSession.SyncClientId, SqlDbType.UniqueIdentifier);
customerIncrInserts.Connection = serverConn;
customerSyncAdapter.SelectIncrementalInsertsCommand = customerIncrInserts;

Dim customerIncrInserts As New SqlCommand()
With customerIncrInserts
    .CommandText = _
        "SELECT CustomerId, CustomerName, CustomerType " _
      & "FROM Sales.Customer " _
      & "WHERE SalesPerson = @SalesPerson " _
      & "AND (InsertTimestamp > @sync_last_received_anchor " _
      & "AND InsertTimestamp <= @sync_new_received_anchor " _
      & "AND InsertId <> @sync_client_id)"
    .Parameters.Add("@SalesPerson", SqlDbType.NVarChar)
    .Parameters.Add("@" + SyncSession.SyncLastReceivedAnchor, SqlDbType.Timestamp)
    .Parameters.Add("@" + SyncSession.SyncNewReceivedAnchor, SqlDbType.Timestamp)
    .Parameters.Add("@" + SyncSession.SyncClientId, SqlDbType.UniqueIdentifier)
    .Connection = serverConn
End With
customerSyncAdapter.SelectIncrementalInsertsCommand = customerIncrInserts

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

SyncParameter Members
Microsoft.Synchronization.Data Namespace