Thanks for the response, although I'm not quite sure it's what I'm looking for. Let me clarify my issue using the two attached screenshots.

In the "NoCheckboxColumn" image, you can see the grid that I'm working with. You'll notice that the last column ("Jun") spans almost the entire way to the right edge of the grid (there is a small gap for the scroll bar). You can also see that there are 4 columns available in the select list that are not currently visible. This has been done by setting Visible=false on the server side during the page load.

Now examine the "CheckBoxColumn" image. Notice that list of available columns now contains an extra column ("Consumed"), which is a CheckBox column. Like the other columns, I've set Visible=false on the server side during the page load. However, there is a much larger gap between the "Jun" column and the right edge of the grid. This gap is the same width as the new CheckBox column that is supposed to be invisible.

Is there some reason why the invisible Checkbox column causes a gap on the right side, but the Text columns do not? Or do I need to hide Checkbox columns using a different mechanism?

NOTE: I must hide the columns on the server side, so the client side code you have provided does not solve this issue.

Thanks Lili.  What I really need to know is how to change the style on the Calendar.

There's a text property on the WebGridColumn called CustomEditorName, which I am setting to "VistaCalendar."  This makes the control appear correctly with a default blue theme.

There's another property called CustomEditorSettings which is probably the thing I need to edit to change the settings of the calendar.  But no matter what I put in there, the appearance of the calendar is the same.  How do I configure the properties on the calendar?

Thanks for your help!

Hi Yudi,

I'm not totally clear on your suggestion.  Are you saying I should remove my lookup column and replace it with a text column?

Are you saying that the charting feature can't work with value lists?

Thanks,

James