DataColumn.ToString Metode

Definisi

Ruang nama:

System.Data

Rakitan:

System.Data.Common.dll

Sumber:

DataColumn.cs

Expression Mendapatkan kolom, jika ada.

public:
 override System::String ^ ToString();

public override string ToString ();

override this.ToString : unit -> string

Public Overrides Function ToString () As String

Mengembalikan

String

Nilai Expression , jika properti diatur; jika tidak, ColumnName properti .

Contoh

Contoh berikut menggunakan ToString properti untuk mengembalikan string default dari setiap anggota kumpulan DataColumn objek.

private void PrintColumns(DataTable table)
{
    // Print the default string of each column in a collection.
    foreach(DataColumn column in table.Columns)
    {
        Console.WriteLine(column.ToString());
    }
}

Private Sub PrintColumns(table As DataTable)
    ' Print the default string of each column in a collection.
    Dim column As DataColumn
    For Each column In table.Columns
       Console.WriteLine(column.ToString())
    Next
End Sub

Lihat juga

• Expression
• ColumnName
• Menggunakan Himpunan Data di ADO.NET