DbDataAdapter.InsertCommand Proprietà

  • Riferimento

Definizione

Spazio dei nomi:
System.Data.Common
Assembly:
System.Data.Common.dll
Assembly:
System.Data.dll
Assembly:
netstandard.dll
Source:
DbDataAdapter.cs
Source:
DbDataAdapter.cs
Source:
DbDataAdapter.cs

Ottiene o imposta un comando utilizzato per inserire nuovi record nell'origine dati.

public:
 property System::Data::Common::DbCommand ^ InsertCommand { System::Data::Common::DbCommand ^ get(); void set(System::Data::Common::DbCommand ^ value); };
[System.ComponentModel.Browsable(false)]
public System.Data.Common.DbCommand? InsertCommand { get; set; }
[System.ComponentModel.Browsable(false)]
public System.Data.Common.DbCommand InsertCommand { get; set; }
[<System.ComponentModel.Browsable(false)>]
member this.InsertCommand : System.Data.Common.DbCommand with get, set
Public Property InsertCommand As DbCommand

Valore della proprietà

DbCommand

Interfaccia IDbCommand utilizzata durante l'applicazione del metodo Update(DataSet), per l'inserimento nell'origine dati dei record relativi alle nuove righe nel set di dati.

Attributi
BrowsableAttribute

Esempio

Nell'esempio seguente viene creata la classe OleDbDataAdapter derivata e vengono impostate alcune delle relative proprietà.

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

Commenti

Durante Update, se questa proprietà non è impostata e le informazioni sulla chiave primaria sono presenti in DataSet, InsertCommand verrà generato automaticamente .

Si applica a

Vedi anche