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IDbDataAdapter.SelectCommand Property

Gets or sets an SQL statement used to select records in the data source.

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

IDbCommand SelectCommand { get; set; }
/** @property */
IDbCommand get_SelectCommand ()

/** @property */
void set_SelectCommand (IDbCommand value)

function get SelectCommand () : IDbCommand

function set SelectCommand (value : IDbCommand)

Not applicable.

Property Value

An IDbCommand that is used during Update to select records from data source for placement in the data set.

When SelectCommand is assigned to a previously created IDbCommand, the IDbCommand is not cloned. The SelectCommand maintains a reference to the previously created IDbCommand object.

If the SelectCommand does not return any rows, no tables are added to the DataSet, and no exception is raised.

The following example creates an instance of the inherited OleDbDataAdapter class, and sets the SelectCommand and InsertCommand properties. It assumes you have already created an OleDbConnection object.

public static OleDbDataAdapter CreateCustomerAdapter(
    OleDbConnection connection)
{
    OleDbDataAdapter adapter = new OleDbDataAdapter();
    OleDbCommand command;

    // Create the SelectCommand.
    command = new OleDbCommand("SELECT * FROM Customers " +
        "WHERE Country = ? AND City = ?", connection);

    command.Parameters.Add("Country", OleDbType.VarChar, 15);
    command.Parameters.Add("City", OleDbType.VarChar, 15);

    adapter.SelectCommand = command;

    // Create the InsertCommand.
    command = new OleDbCommand(
        "INSERT INTO Customers (CustomerID, CompanyName) " +
        "VALUES (?, ?)", connection);

    command.Parameters.Add(
        "CustomerID", OleDbType.Char, 5, "CustomerID");
    command.Parameters.Add(
        "CompanyName", OleDbType.VarChar, 40, "CompanyName");

    adapter.InsertCommand = command;
    return adapter;
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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