SqlCeRemoteDataAccess Class

Article
10/22/2009

Initializes a new instance of the SqlCeRemoteDataAccess object. For more information about Remote Data Access, see Using Remote Data Access (RDA).

Namespace: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (in system.data.sqlserverce.dll)

Syntax

'Declaration
Public NotInheritable Class SqlCeRemoteDataAccess
    Implements IDisposable

public sealed class SqlCeRemoteDataAccess : IDisposable

public ref class SqlCeRemoteDataAccess sealed : IDisposable

public final class SqlCeRemoteDataAccess implements IDisposable

public final class SqlCeRemoteDataAccess implements IDisposable

Remarks

SQL Server Compact 3.5 SP1 is not currently optimized to serve as a database for Web sites. By default, connections from ASP.NET-connected applications are blocked in SQL Server Compact 3.5 SP1. SQL Server Compact 3.5 SP1 is optimized for use as an embedded database within applications. Using SQL Server Compact 3.5 SP1 as a database for Web sites requires support for multiple users and concurrent data changes. This can cause performance problems. Therefore, these scenarios are not supported. Other editions of SQL Server, including SQL Server 2005 Express Edition and later versions, are optimized to serve as a database for Web sites.

SQL Server Compact 3.5 SP1 can be used with ASP.NET in application scenarios where ASP.NET is used to create SQL Server Compact 3.5 SP1 databases for synchronization scenarios. Use the following code to change the default behavior of SQL Server Compact 3.5 SP1 to work within ASP.NET.

AppDomain.CurrentDomain.SetData("SQLServerCompactEditionUnderWebHosting", true)

Inheritance Hierarchy

System.Object
System.Data.SqlServerCe.SqlCeRemoteDataAccess

Example

The following example shows how to initialize a new instance of the SqlCeRemoteDataAccess object.

' Connection String to the SQL Server
'
Dim rdaOleDbConnectString As String = "Data Source=MySqlServer;Initial Catalog=AdventureWorks; " & _
    "User Id=username;Password = <password>"

' Initialize RDA Object
'
Dim rda As SqlCeRemoteDataAccess = Nothing

Try
    ' Try the Pull Operation
    '
    rda = New SqlCeRemoteDataAccess( _
        "https://www.adventure-works.com/sqlmobile/sqlcesa35.dll", _
        "MyLogin", _
        "<password>", _
        "Data Source=MyDatabase.sdf")

    rda.Pull("Employees", "SELECT * FROM DimEmployee", rdaOleDbConnectString, _
        RdaTrackOption.TrackingOnWithIndexes, "ErrorTable")

    ' or, try one of these overloads:
    ' rda.Pull("Employees", "SELECT * FROM DimEmployee", rdaOleDbConnectString, _
    '     RdaTrackOption.TrackingOnWithIndexes)
    '
    ' rda.Pull("Employees", "SELECT * FROM DimEmployee", rdaOleDbConnectString)

Catch
    ' Handle errors here
    '
Finally
    ' Dispose of the RDA object
    '
    rda.Dispose()
End Try

// Connection String to the SQL Server
//
string rdaOleDbConnectString = "Data Source=MySqlServer;Initial Catalog=AdventureWorks; " +
    "User Id=username;Password = <password>";

// Initialize RDA Object
//
SqlCeRemoteDataAccess rda = null;

try
{
    // Try the Pull Operation
    //
    rda = new SqlCeRemoteDataAccess(
        "https://www.adventure-works.com/sqlmobile/sqlcesa35.dll",
        "MyLogin",
        "<password>",
        "Data Source=MyDatabase.sdf");

    rda.Pull("Employees", "SELECT * FROM DimEmployee", rdaOleDbConnectString,
        RdaTrackOption.TrackingOnWithIndexes, "ErrorTable");

    // or, try one of these overloads:
    //
    // rda.Pull("Employees", "SELECT * FROM DimEmployee", rdaOleDbConnectString,
    //     RdaTrackOption.TrackingOnWithIndexes);
    //
    // rda.Pull("Employees", "SELECT * FROM DimEmployee", rdaOleDbConnectString);
}
catch (SqlCeException)
{
    // Handle errors here
    //
}
finally
{
    // Dispose of the RDA object
    //
    rda.Dispose();
}

Thread Safety

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

Platforms

Development Platforms

Windows Vista, Windows Mobile 5.0, Windows XP Professional with Service Pack 2 (SP2), Windows Server 2003, Windows Mobile 2003 for Pocket PC, Windows CE 5.0
Version Information
.NET Framework and NET Compact Framework
Supported in 3.5
.NET Framework
Supported in 3.0
.NET Compact Framework and .Net Framework
Supported in 2.0

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