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OleDbDataAdapter.InsertCommand 属性

定义

获取或设置 SQL 语句或用于将新记录插入数据源的存储过程。

public:
 property System::Data::OleDb::OleDbCommand ^ InsertCommand { System::Data::OleDb::OleDbCommand ^ get(); void set(System::Data::OleDb::OleDbCommand ^ value); };
public System.Data.OleDb.OleDbCommand? InsertCommand { get; set; }
[System.Data.DataSysDescription("DbDataAdapter_InsertCommand")]
public System.Data.OleDb.OleDbCommand InsertCommand { get; set; }
public System.Data.OleDb.OleDbCommand InsertCommand { get; set; }
member this.InsertCommand : System.Data.OleDb.OleDbCommand with get, set
[<System.Data.DataSysDescription("DbDataAdapter_InsertCommand")>]
member this.InsertCommand : System.Data.OleDb.OleDbCommand with get, set
Public Property InsertCommand As OleDbCommand

属性值

OleDbCommand 过程中使用的 Update(DataSet),用于将与 DataSet 中的新行相对应的记录插入到数据源中。

属性

示例

以下示例创建 并 OleDbDataAdapter 设置 SelectCommandInsertCommand 属性。 它假定已创建 OleDbConnection 对象。

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

    // Create the SelectCommand.
    command = new OleDbCommand("SELECT CustomerID 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;
}
Public Shared Function CreateCustomerAdapter( _
    connection As OleDbConnection) As OleDbDataAdapter 
  
    Dim adapter As New OleDbDataAdapter()
    Dim command As OleDbCommand

    ' Create the SelectCommand.
    command = New OleDbCommand("SELECT CustomerID 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
End Function

注解

在 期间 Update,如果未设置此属性,并且中存在 DataSet主键信息, InsertCommand 则可以在设置 SelectCommand 属性并使用 OleDbCommandBuilder时自动生成 。 然后,未设置的任何其他命令都由 OleDbCommandBuilder生成。 此生成逻辑要求键列信息存在于 中 DataSet。 有关详细信息,请参阅使用 CommandBuilders 生成命令

InsertCommand 分配给以前创建的 OleDbCommand时, OleDbCommand 不会克隆 。 维护 InsertCommand 对以前创建的 OleDbCommand 对象的引用。

注意

如果执行此命令返回行,则这些行可能会添加到 , DataSet 具体取决于设置 UpdatedRowSource 对象的 属性 OleDbCommand 的方式。

适用于

另请参阅