DbDataAdapter.DeleteCommand Properti

Referensi

Definisi

Ruang nama:: System.Data.Common

Rakitan:: System.Data.Common.dll

Rakitan:: System.Data.dll

Rakitan:: netstandard.dll

Sumber:: DbDataAdapter.cs

Sumber:: DbDataAdapter.cs

Sumber:: DbDataAdapter.cs

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Mendapatkan atau mengatur perintah untuk menghapus rekaman dari himpunan data.

public:
 property System::Data::Common::DbCommand ^ DeleteCommand { System::Data::Common::DbCommand ^ get(); void set(System::Data::Common::DbCommand ^ value); };

[System.ComponentModel.Browsable(false)]
public System.Data.Common.DbCommand? DeleteCommand { get; set; }

[System.ComponentModel.Browsable(false)]
public System.Data.Common.DbCommand DeleteCommand { get; set; }

[<System.ComponentModel.Browsable(false)>]
member this.DeleteCommand : System.Data.Common.DbCommand with get, set

Public Property DeleteCommand As DbCommand

Nilai Properti

DbCommand

Yang IDbCommand digunakan selama Update(DataSet) menghapus rekaman di sumber data untuk baris yang dihapus dalam himpunan data.

Atribut: BrowsableAttribute

Contoh

Contoh berikut membuat kelas OleDbDataAdapter turunan dan mengatur beberapa propertinya.

public static OleDbDataAdapter CreateCustomerAdapter(
    OleDbConnection connection)
{
    OleDbDataAdapter dataAdapter = new OleDbDataAdapter();
    OleDbCommand command;
    OleDbParameter parameter;

    // 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);

    dataAdapter.SelectCommand = command;

    // Create the DeleteCommand.
    command = new OleDbCommand(
        "DELETE * FROM Customers WHERE CustomerID = ?",
        connection);

    parameter = command.Parameters.Add(
        "CustomerID", OleDbType.Char, 5, "CustomerID");
    parameter.SourceVersion = DataRowVersion.Original;

    dataAdapter.DeleteCommand = command;

    return dataAdapter;
}

Public Shared Function CreateCustomerAdapter( _
    connection As OleDbConnection) As OleDbDataAdapter 

    Dim dataAdapter As New OleDbDataAdapter()
    Dim command As OleDbCommand
    Dim parameter As OleDbParameter

    ' 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)

    dataAdapter.SelectCommand = command

    ' Create the DeleteCommand.
    command = New OleDbCommand( _
        "DELETE * FROM Customers WHERE CustomerID = ?", _
        connection)

    parameter = command.Parameters.Add( _
        "CustomerID", OleDbType.Char, 5, "CustomerID")
    parameter.SourceVersion = DataRowVersion.Original

    dataAdapter.DeleteCommand = command

    Return dataAdapter
End Function

Keterangan

Selama Update, jika properti ini tidak diatur dan informasi kunci primer ada di DataSet, DeleteCommand secara otomatis dihasilkan.

Berlaku untuk

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