Proprietà ScriptBuffer.Item
Gets or sets the value of a column in the buffer by using its index in the array of buffer column indexes.
Spazio dei nomi Microsoft.SqlServer.Dts.Pipeline
Assembly: Microsoft.SqlServer.TxScript (in Microsoft.SqlServer.TxScript.dll)
Sintassi
'Dichiarazione
Protected Default Property Item ( _
ColumnIndex As Integer _
) As Object
Get
Set
'Utilizzo
Dim ColumnIndex As Integer
Dim value As Object
value = Me(ColumnIndex)
Me(ColumnIndex) = value
protected Object this[
int ColumnIndex
] { get; set; }
protected:
property Object^ default[int ColumnIndex] {
Object^ get (int ColumnIndex);
void set (int ColumnIndex, Object^ value);
}
member Item : Object with get, set
JScript supporta l'utilizzo di proprietà indicizzate, ma non la dichiarazione di nuove proprietà.
Parametri
- ColumnIndex
Tipo: System.Int32
The index of the column.
Valore proprietà
Tipo: System.Object
The value of a column in the buffer by using its index in the array of buffer column indexes.
Osservazioni
The Script component developer does not use the ScriptBuffer class directly, but indirectly, through the derived classes in the BufferWrapper project item that represent the component's input and outputs.
The developer does not have to use the Item property, because the derived classes provide typed accessors for each buffer column, with property names that correspond to the column names.
Esempi
The following sample code from the autogenerated BufferWrapper project item demonstrates how the Script component implicitly uses the Item method to retrieve a column from the buffer.
Public ReadOnly Property [City]() As String
Get
Return CType(Me(1), String)
End Get
End Property