Code to show image in datagrid view

I found this sample code on MSDN to show an image in a datagridview and it says that this same code can be used for any image. However I am having a problem getting it to work with jpeg. Can someone help me out?

Code:

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Public Sub CreateGraphicsColumn()

    Dim treeIcon As New Icon(Me.GetType(), "tree.ico")
    Dim iconColumn As New DataGridViewImageColumn()

    With iconColumn
        .Image = treeIcon.ToBitmap()
        .Name = "Tree"
        .HeaderText = "Nice tree"
    End With

    dataGridView1.Columns.Insert(2, iconColumn)

End Sub

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I got it.

Code:

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        Dim AutoImage As New Bitmap("C:\myImage.jpg")
        Dim imageColumn As New DataGridViewImageColumn()
        With imageColumn
            .Image = AutoImage
            .Name = "Auto"
            .HeaderText = "Snap Shot"
        End With
        dgwPics.Columns.Insert(1, imageColumn)
        With dgwPics
            .Columns.Item(1).Width = 300
            .Rows.Item(0).Height = 300
        End With

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Now my only issue is that I want to make all my Row heights 300 instead of just the first one as I have in the code.