DataGridViewSortCompareEventHandler 代理人

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

表示方法，處理 SortCompare 控制項的 DataGridView 事件。

public delegate void DataGridViewSortCompareEventHandler(System::Object ^ sender, DataGridViewSortCompareEventArgs ^ e);

public delegate void DataGridViewSortCompareEventHandler(object? sender, DataGridViewSortCompareEventArgs e);

type DataGridViewSortCompareEventHandler = delegate of obj * DataGridViewSortCompareEventArgs -> unit

Public Delegate Sub DataGridViewSortCompareEventHandler(sender As Object, e As DataGridViewSortCompareEventArgs)

參數

sender

Object

事件的來源。

e

DataGridViewSortCompareEventArgs

DataGridViewSortCompareEventArgs，其中包含事件資料。

範例

下列程式碼範例示範如何在 SortCompare 多個資料行排序中使用 。 此範例是How to： Customize Sorting in the Windows Forms DataGridView Control中所提供的較大範例的一部分。

private void dataGridView1_SortCompare(object sender,
    DataGridViewSortCompareEventArgs e)
{
    // Try to sort based on the cells in the current column.
    e.SortResult = System.String.Compare(
        e.CellValue1.ToString(), e.CellValue2.ToString());

    // If the cells are equal, sort based on the ID column.
    if (e.SortResult == 0 && e.Column.Name != "ID")
    {
        e.SortResult = System.String.Compare(
            dataGridView1.Rows[e.RowIndex1].Cells["ID"].Value.ToString(),
            dataGridView1.Rows[e.RowIndex2].Cells["ID"].Value.ToString());
    }
    e.Handled = true;
}

Private Sub DataGridView1_SortCompare( _
    ByVal sender As Object, ByVal e As DataGridViewSortCompareEventArgs) _
    Handles DataGridView1.SortCompare

    ' Try to sort based on the contents of the cell in the current column.
    e.SortResult = System.String.Compare(e.CellValue1.ToString(), _
        e.CellValue2.ToString())

    ' If the cells are equal, sort based on the ID column.
    If (e.SortResult = 0) AndAlso Not (e.Column.Name = "ID") Then
        e.SortResult = System.String.Compare( _
            DataGridView1.Rows(e.RowIndex1).Cells("ID").Value.ToString(), _
            DataGridView1.Rows(e.RowIndex2).Cells("ID").Value.ToString())
    End If

    e.Handled = True

End Sub

備註

建立 DataGridViewSortCompareEventHandler 委派時，必須識別處理事件的方法。 若要使事件與您的事件處理常式產生關聯，請將委派的執行個體 (Instance) 加入至事件。 除非您移除委派，否則每當事件發生時就會呼叫事件處理常式。 如需事件處理常式委派的詳細資訊，請參閱 處理和引發事件。

擴充方法

另請參閱

• DataGridView
• SortCompare
• DataGridViewSortCompareEventArgs
• 如何：自訂 Windows Forms DataGridView 控制項的排序