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Can't resize Image Col

I've added an image col to my wingrid and the col is much larger than the image itself.  I'm trying to resize it but I get an error.

private void GridSchemaErrors_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
            UltraGridLayout layout = e.Layout;
            UltraGridBand band = layout.Bands[0];
            UltraGridColumn imageColumn = band.Columns.Add("ImageCol");
            imageColumn.Header.VisiblePosition = 0;
            gridSchemaErrors.DisplayLayout.PerformAutoResizeColumns(true, PerformAutoSizeType.AllRowsInBand,
            imageColumn.DataType = typeof(Image);
            imageColumn.Style = Infragistics.Win.UltraWinGrid.ColumnStyle.Image;

Then I set the image

        private void GridSchemaErrors_InitializeRow(object sender, InitializeRowEventArgs e)
            if (e.Row.Cells["Status"].Value == "OK")
                e.Row.Cells["ImageCol"].Value = Image.FromFile(".//Images//Check.jpg"); ;
            else if (e.Row.Cells["Status"].Value == "Failed")
                e.Row.Cells["ImageCol"].Value = Image.FromFile(".//Images//X.jpg");

I get this runtime error:

System.InvalidCastException: 'Object must implement IConvertible.'

The error happens when it sets the image in InitializeRow..