Editing any of gridviews on a page makes bound controls in datalist disappear.

[HP]

Hi there

I have a datalist control with some bound controls in its Item Template
and a gridview bound to one of those fields (residing also in Item
Template).

I've found out that when I click Edit on the gridview (same happens
when editing other gridview which is outside the datalist) all datalist
bound fields (except the gridview) disappear, and they don't appear
after submitting GV changes - they do only after changing value of some
control to which all controls on the page are bound.

those bound fields that disappear have different object data source
than 2 gridviews that seem to interfere with them. they are normal
datalist labels bound with eval() and controls that they are bound to
stay visible all the time (so it's not a question of empty datasource
control parameter).
what may happen during gridview edit mode switch?
thanks very much for any hints
HP