I've attached a sample app to illustrate my problem.

We've defined several fields with a width of *. We always want every column visible, hence the * width. We also disable the horizontal scrollbar in the FieldLayoutInitialized event.

We have one editable field (My Note in the sample app). If it has an extremely, obscenely long string value, the text is clipped as you would expect. If you click and drag the field separator, it will expand until it runs out of room based on the columns on the right. This is also as expected.

However, if you double-click the field separator, it expands the field as far as it needs, pushing the right hand columns off the screen. Since we disable the horizontal scroll bar, you're unable to see the righthand columns without expanding the window.

To see this in the sample app, enter a very large string value (just hold down a character key for 10-15 seconds), then double click the Note field separator to make it autosize.

Is there a way to make double clicking the field separator behave the same as clicking and dragging it?