Yes that has been my experience. I have found that you must use a method that has the same hierarchy whether is called from the column or the control in the column. However, I noticed that the code reference tool included in VFP uses methods and I have never had a problem so I assumed there must be a way to use methods as control source. So far the solution that works is "Thisform.mymethod".

Simon


>setting a new controlsource is hiccupy for grids. Look into "safe select" keeping the controlsource or the cursoradapter, which also works around this issue.
>
>
>>I had a method in the DynamicBackColor which I moved and combined with the Method in the ControlSource and now the problems seems to have disappeared. So perhaps the DynamicBackColor property cannot handle methods correctly.
>>
>>Simon
>>
>>
>>>Hi
>>>
>>>I have a grid bound to an alias and it randomly loses all of it columns. The record source is never changed but the columns just vanish and I am left with an empty box. I have noticed weird things happen when you use a method for the column control source and this grid is just two columns with ControlSources set to Thisform.SetListText("UPTBL") and ThisForm.SetListPicture("UPTBL",UPTbl.ID)
>>>
>>>I see that the Code References tool uses method for the column control source but I have never seen it lose its columns so I am wondering what might be different.
>>>
>>>I have attached an image of the before and after condition. The blank grid occurred when I pressed the page down key twice quickly.
>>>
>>>Thanks,
>>>Simon