DataColumnMappingCollection.Count Properti

Definisi

Ruang nama:

System.Data.Common

Rakitan:

System.Data.Common.dll

Sumber:

DataColumnMappingCollection.cs

Mendapatkan jumlah DataColumnMapping objek dalam koleksi.

public:
 property int Count { int get(); };

[System.ComponentModel.Browsable(false)]
public int Count { get; }

[<System.ComponentModel.Browsable(false)>]
member this.Count : int

Public ReadOnly Property Count As Integer

Nilai Properti

Int32

Jumlah item dalam koleksi.

Penerapan

Count

Atribut

BrowsableAttribute

Contoh

Contoh berikut membuat DataColumnMappingCollection koleksi, menambahkan DataColumnMapping objek ke koleksi, dan menampilkan daftar kolom sumber yang dipetakan.

public void CreateColumnMappings()
{
    DataColumnMappingCollection mappings =
        new DataColumnMappingCollection();
    mappings.Add("Category Name","DataCategory");
    mappings.Add("Description","DataDescription");
    mappings.Add("Picture","DataPicture");
    string message = "ColumnMappings:\n";
    for(int i=0;i < mappings.Count;i++)
    {
        message += i.ToString() + " "
            + mappings[i].ToString() + "\n";
    }
    Console.WriteLine(message);
}

Public Sub CreateColumnMappings()
    Dim mappings As New DataColumnMappingCollection()
    mappings.Add("Category Name", "DataCategory")
    mappings.Add("Description", "DataDescription")
    mappings.Add("Picture", "DataPicture")
    Dim message As String = "ColumnMappings:" + ControlChars.Cr
    Dim i As Integer
    For i = 0 To mappings.Count - 1
        message += i.ToString() + " " + mappings(i).ToString() _
           + ControlChars.Cr
    Next i
    Console.WriteLine(message)
End Sub

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