datagrid losing controls on postback

I have a datagrid that auto generates columns set to TRUE.  The general layout of this grid is as follows:

Company 1  |   Company 2 |  Company 3 | Company 4 ....
textbox                 DDL             DDL                 DDL
textbox                 DDL             DDL                 DDL
textbox                 DDL             DDL                 DDL
etc..

the reason im using auto generate is because the column headers are names of companies, and depending on the data that i get back, there will be a variable amount of columns(companies).

so i simply generate a datatable with the correct formating, bind it to the datagrid's datasource,
then on ItemDataBound, i dynamically add controls to the cells which will container either a dropdownlist with data in it, or a textbox (each cell will depend on conditions)

all of this works, however, when i postback on anything, the columns stay, but i lose all my controls.  even if i have it re add those controls on every postback, then i still lose the state of their selected values.
the dropdownlists in the grid do not have autopostback set, so we are posting back on other parts of the page.

is there anything that can be done thats relatively simple?
mocaivAsked:
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samtran0331Connect With a Mentor Commented:
because of the page lifecyle and when thing like controls and their values get put into viewstate...dynamic controls can get tricky....when you add the controls in ItemDataBound, try wrapping that in an ispostback check...make sure you don't re-add or re-bind the dynamic controls when it is a postback....it might still not be in the correct part of the page lifecycle...but see if it changes your results...
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