DrawListViewColumnHeaderEventArgs.Graphics プロパティ

定義

列ヘッダーの描画に使用される Graphics を取得します。Gets the Graphics used to draw the column header.

public:
 property System::Drawing::Graphics ^ Graphics { System::Drawing::Graphics ^ get(); };
public System.Drawing.Graphics Graphics { get; }
member this.Graphics : System.Drawing.Graphics
Public ReadOnly Property Graphics As Graphics

プロパティ値

列ヘッダーの描画に使用する Graphics オブジェクト。A Graphics used to draw the column header.

次のコード例は、 Graphics ListViewコントロールのカスタム描画を提供するアプリケーションでプロパティを使用する方法を示しています。The following code example demonstrates how to use the Graphics property in an application that provides custom drawing for a ListView control.

完全な例についてはDrawListViewColumnHeaderEventArgs 、「概要リファレンス」トピックを参照してください。For the complete example, see the DrawListViewColumnHeaderEventArgs overview reference topic.

// Draws column headers.
private void listView1_DrawColumnHeader(object sender,
    DrawListViewColumnHeaderEventArgs e)
{
    using (StringFormat sf = new StringFormat())
    {
        // Store the column text alignment, letting it default
        // to Left if it has not been set to Center or Right.
        switch (e.Header.TextAlign)
        {
            case HorizontalAlignment.Center:
                sf.Alignment = StringAlignment.Center;
                break;
            case HorizontalAlignment.Right:
                sf.Alignment = StringAlignment.Far;
                break;
        }

        // Draw the standard header background.
        e.DrawBackground();

        // Draw the header text.
        using (Font headerFont =
                    new Font("Helvetica", 10, FontStyle.Bold))
        {
            e.Graphics.DrawString(e.Header.Text, headerFont,
                Brushes.Black, e.Bounds, sf);
        }
    }
    return;
}
' Draws column headers.
Private Sub listView1_DrawColumnHeader(ByVal sender As Object, _
    ByVal e As DrawListViewColumnHeaderEventArgs) _
    Handles listView1.DrawColumnHeader

    Dim sf As New StringFormat()
    Try

        ' Store the column text alignment, letting it default
        ' to Left if it has not been set to Center or Right.
        Select Case e.Header.TextAlign
            Case HorizontalAlignment.Center
                sf.Alignment = StringAlignment.Center
            Case HorizontalAlignment.Right
                sf.Alignment = StringAlignment.Far
        End Select

        ' Draw the standard header background.
        e.DrawBackground()

        ' Draw the header text.
        Dim headerFont As New Font("Helvetica", 10, FontStyle.Bold)
        Try
            e.Graphics.DrawString(e.Header.Text, headerFont, _
                Brushes.Black, e.Bounds, sf)
        Finally
            headerFont.Dispose()
        End Try

    Finally
        sf.Dispose()
    End Try

End Sub

注釈

クラスGraphicsには、ディスプレイデバイスでの描画に便利なプロパティとメソッドが用意されています。The Graphics class provides properties and methods useful for drawing on the display device.

適用対象

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