DataGridViewCellMouseEventArgs クラスとは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

DataGridViewCellMouseEventArgs クラス

メモ : このクラスは、.NET Framework version 2.0 で新しく追加されたものです。

DataGridViewCell 内でマウスが移動するたびに DataGridView が発生させるマウスイベントのデータを提供します。

名前空間: System.Windows.Forms
アセンブリ: System.Windows.Forms (system.windows.forms.dll 内)
構文

Visual Basic (宣言)

Public Class DataGridViewCellMouseEventArgs
    Inherits MouseEventArgs

Visual Basic (使用法)

Dim instance As DataGridViewCellMouseEventArgs

public class DataGridViewCellMouseEventArgs
 : MouseEventArgs

C++

public ref class DataGridViewCellMouseEventArgs
 : public MouseEventArgs

public class DataGridViewCellMouseEventArgs
 extends MouseEventArgs

JScript

public class DataGridViewCellMouseEventArgs
 extends MouseEventArgs

解説

DataGridViewCellMouseEventArgs クラスでは、次の DataGridView イベント向けのデータが提供されます。

CellMouseClick
CellMouseDoubleClick
CellMouseDown
CellMouseMove
CellMouseUp
ColumnHeaderMouseClick
ColumnHeaderMouseDoubleClick
RowHeaderMouseClick
RowHeaderMouseDoubleClick

使用例

この型の使用方法を次のコード例に示します。

Visual Basic

Private Sub dataGridView1_ColumnHeaderMouseClick(ByVal
 sender As Object, _
    ByVal e As DataGridViewCellMouseEventArgs)
 _
    Handles dataGridView1.ColumnHeaderMouseClick

    Dim newColumn As DataGridViewColumn = _
        dataGridView1.Columns(e.ColumnIndex)
    Dim oldColumn As DataGridViewColumn = dataGridView1.SortedColumn
    Dim direction As ListSortDirection

    ' If oldColumn is null, then the DataGridView is not currently sorted.
    If Not oldColumn Is
 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

    ' Sort the selected column.
    dataGridView1.Sort(newColumn, direction)
    If direction = ListSortDirection.Ascending Then
        newColumn.HeaderCell.SortGlyphDirection = SortOrder.Ascending
    Else
        newColumn.HeaderCell.SortGlyphDirection = SortOrder.Descending
    End If

End Sub

private void dataGridView1_ColumnHeaderMouseClick(
    object sender, DataGridViewCellMouseEventArgs e)
{
    DataGridViewColumn newColumn = dataGridView1.Columns[e.ColumnIndex];
    DataGridViewColumn oldColumn = dataGridView1.SortedColumn;
    ListSortDirection direction;

    // If oldColumn is null, then the DataGridView is not 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;
    }

    // Sort the selected column.
    dataGridView1.Sort(newColumn, direction);
    newColumn.HeaderCell.SortGlyphDirection =
        direction == ListSortDirection.Ascending ?
        SortOrder.Ascending : SortOrder.Descending;
}