DataGridViewの列に画像を表示する方法

DataGridViewの列に画像を表示する方法
VB.NET

Dim column As New DataGridViewImageColumn()
column.Name = "gazou"
column.ValuesAreIcons = False
column.Image = New Bitmap("C:\img001.gif")
column.ImageLayout = DataGridViewImageCellLayout.Zoom
column.Description = "image"
dgv1.Columns.Add(column)
dgv1("gazou", 0).Value = New Bitmap("C:\img002.gif") '

C#

DataGridViewImageColumn column = new DataGridViewImageColumn();
column.Name = "gazou";
column.ValuesAreIcons = false;
column.Image = new Bitmap("C:\\img001.gif");
column.ImageLayout = DataGridViewImageCellLayout.Zoom;
column.Description = "image";
dgv1.Columns.Add(column);
dgv1["gazou", 0].Value = new Bitmap("C:\\img002.gif");

セルに「X」が表示されないようにする方法
VB.NET

Dim imageColumn As DataGridViewImageColumn = _
    CType(dgv1.Columns("Image"), DataGridViewImageColumn)
imageColumn.DefaultCellStyle.NullValue = Nothing

C#

DataGridViewImageColumn imageColumn =
    (DataGridViewImageColumn)dgv1.Columns["Image"];
imageColumn.DefaultCellStyle.NullValue = null;

セルの値を任意で変更しセル値に合致した画像を表示する方法
VB.NET

Private image1 As New Bitmap("C:\img001.gif")
Private image2 As New Bitmap("C:\img002.gif")

Private Sub dgv1_CellFormatting(ByVal sender As Object, _
        ByVal e As DataGridViewCellFormattingEventArgs) _
        Handles dgv1.CellFormatting
    Dim dgv As DataGridView = CType(sender, DataGridView)
    If dgv.Columns(e.ColumnIndex).Name = "Image" AndAlso _
        e.RowIndex >= 0 AndAlso _
        TypeOf (dgv("Column1", e.RowIndex).Value) Is Integer Then
        Select Case CInt(dgv("Column1", e.RowIndex).Value)
            Case 1
                e.Value = Me.image1
                e.FormattingApplied = True
            Case 2
                e.Value = Me.image2
                e.FormattingApplied = True
        End Select
    End If
End Sub

C#

private Bitmap image1 = new Bitmap("C:\\img001.gif");
private Bitmap image2 = new Bitmap("C:\\img002.gif");

private void dgv1_CellFormatting(object sender,
    DataGridViewCellFormattingEventArgs e)
{
    DataGridView dgv = (DataGridView)sender;
    if (dgv.Columns[e.ColumnIndex].Name == "Image" &&
        e.RowIndex >= 0 &&
        dgv["Column1", e.RowIndex].Value is int)
    {
        switch ((int)dgv["Column1", e.RowIndex].Value)
        {
            case 1:
                e.Value = this.image1;
                e.FormattingApplied = true;
                break;
            case 2:
                e.Value = this.image2;
                e.FormattingApplied = true;
                break;
        }
    }
}