DataGridView.SortedColumn Properti

Definisi

Ruang nama:

System.Windows.Forms

Rakitan:

System.Windows.Forms.dll

Mendapatkan kolom tempat DataGridView konten saat ini diurutkan.

public:
 property System::Windows::Forms::DataGridViewColumn ^ SortedColumn { System::Windows::Forms::DataGridViewColumn ^ get(); };

[System.ComponentModel.Browsable(false)]
public System.Windows.Forms.DataGridViewColumn SortedColumn { get; }

[<System.ComponentModel.Browsable(false)>]
member this.SortedColumn : System.Windows.Forms.DataGridViewColumn

Public ReadOnly Property SortedColumn As DataGridViewColumn

Nilai Properti

DataGridViewColumn

DataGridView tempat DataGridViewColumn konten saat ini diurutkan.

Atribut

BrowsableAttribute

Contoh

Contoh kode berikut menunjukkan cara menggunakan SortedColumn properti dalam pengurutan terprogram.

private void sortButton_Click(object sender, System.EventArgs e)
{
    // Check which column is selected, otherwise set NewColumn to null.
    DataGridViewColumn newColumn =
        dataGridView1.Columns.GetColumnCount(
        DataGridViewElementStates.Selected) == 1 ?
        dataGridView1.SelectedColumns[0] : null;

    DataGridViewColumn oldColumn = dataGridView1.SortedColumn;
    ListSortDirection direction;

    // If oldColumn is null, then the DataGridView is not currently sorted.
    if (oldColumn != null)
    {
        // Sort the same column again, reversing the SortOrder.
        if (oldColumn == newColumn &&
            dataGridView1.SortOrder == SortOrder.Ascending)
        {
            direction = ListSortDirection.Descending;
        }
        else
        {
            // Sort a new column and remove the old SortGlyph.
            direction = ListSortDirection.Ascending;
            oldColumn.HeaderCell.SortGlyphDirection = SortOrder.None;
        }
    }
    else
    {
        direction = ListSortDirection.Ascending;
    }

    // If no column has been selected, display an error dialog  box.
    if (newColumn == null)
    {
        MessageBox.Show("Select a single column and try again.",
            "Error: Invalid Selection", MessageBoxButtons.OK,
            MessageBoxIcon.Error);
    }
    else
    {
        dataGridView1.Sort(newColumn, direction);
        newColumn.HeaderCell.SortGlyphDirection =
            direction == ListSortDirection.Ascending ?
            SortOrder.Ascending : SortOrder.Descending;
    }
}

Private Sub SortButton_Click(ByVal sender As Object, _
    ByVal e As EventArgs) Handles sortButton.Click

    ' Check which column is selected, otherwise set NewColumn to Nothing.
    Dim newColumn As DataGridViewColumn
    If dataGridView1.Columns.GetColumnCount(DataGridViewElementStates _
        .Selected) = 1 Then
        newColumn = dataGridView1.SelectedColumns(0)
    Else
        newColumn = Nothing
    End If

    Dim oldColumn As DataGridViewColumn = dataGridView1.SortedColumn
    Dim direction As ListSortDirection

    ' If oldColumn is null, then the DataGridView is not currently sorted.
    If oldColumn IsNot Nothing Then

        ' Sort the same column again, reversing the SortOrder.
        If oldColumn Is newColumn AndAlso dataGridView1.SortOrder = _
            SortOrder.Ascending Then
            direction = ListSortDirection.Descending
        Else

            ' Sort a new column and remove the old SortGlyph.
            direction = ListSortDirection.Ascending
            oldColumn.HeaderCell.SortGlyphDirection = SortOrder.None
        End If
    Else
        direction = ListSortDirection.Ascending
    End If


    ' If no column has been selected, display an error dialog  box.
    If newColumn Is Nothing Then
        MessageBox.Show("Select a single column and try again.", _
            "Error: Invalid Selection", MessageBoxButtons.OK, _
            MessageBoxIcon.Error)
    Else
        dataGridView1.Sort(newColumn, direction)
        If direction = ListSortDirection.Ascending Then
            newColumn.HeaderCell.SortGlyphDirection = SortOrder.Ascending
        Else
            newColumn.HeaderCell.SortGlyphDirection = SortOrder.Descending
        End If
    End If

End Sub

Keterangan

Jika tidak diurutkan DataGridView , properti ini akan mengembalikan null.

Ketika kolom yang ditunjukkan oleh properti ini memiliki SortMode nilai DataGridViewColumnSortMode.Automaticproperti , kolom akan menampilkan glyph pengurutan SortOrder berdasarkan nilai properti .

Saat kolom memiliki SortMode nilai DataGridViewColumnSortMode.Programmaticproperti , Anda harus menampilkan glyph pengurutan sendiri melalui DataGridViewColumnHeaderCell.SortGlyphDirection properti .

Catatan

Nilai properti ini tidak bermakna saat Anda mengurutkan kontrol menggunakan pengurutan kustom. Untuk informasi selengkapnya tentang pengurutan kustom, lihat Sort(IComparer) metode dan SortCompare peristiwa.

Lihat juga

• Kontrol DataGridView (Formulir Windows)