In my environment, setting the column width during PrepareDataBinding server side event will set the height correctly. However, percentange width currently only works in IE browser. For non-IE browser you should set AutoFitColumns property to true under Layout Settings.

In order to disable the Hyperlink column you could set the ColumnType to text, however you will need to set the column type to hyperlink for the column you wish to have hyperlink style. This could be done during InitializeRow server side event. Here is the snippet to set the column type of URL column

e.Row.Cells.GetNamedItem("url").Column.ColumnType = ColumnType.Text;
e.Row.Cells.GetNamedItem("url").Column.ColumnType = ColumnType.HyperLink;

In order to disable context menu, please set the property AllowContextMenu to false under the LayoutSetting.

You could try using CustomAggegrate server side event to achieve this functionality.

For example you would like to format UnitPrice column to have c6 format

<ISWebGrid:WebGridColumn Caption="UnitPrice" DataMember="UnitPrice" DataType="System.Decimal" Name="UnitPrice" Width="150px" AggregateFunction="Custom" FooterText="Total : " DataFormatString="c6">

Because we set the column to have an aggegrate custom we will need to implement CustomAggegrate server side event. In this event we could also have a different format string for the aggegrate column

protected void WebGrid1_CustomAggregate(object sender, ISNet.WebUI.WebGrid.CustomAggregateArgs e)
{
    if (e.Column.Name == "UnitPrice")
    {
        // obtain the rows that need to be calculated
        WebGridRowCollection rows = e.Rows;
        Decimal total = 0;

        // loop through all rows
        foreach (WebGridRow row in rows)
        {
            total += Decimal.Parse(row.Cells.GetNamedItem("UnitPrice").Value.ToString());
        }

        // pass the result back to AggregateResult.
        e.AggregateResult = total.ToString("c2");
    }
}

I have forwarded your issue to our developer and it has been logged as a feature request. We will inform you if there is any update regarding this item.

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