Data grid control limitation

[Anil Kulkarni]

Hi Folks,

My Situation(program requirement):
I have datalist control and having Datagrid inside each
ItemTemplate column of datalist control.I am fetching data
from "Product" & "StyleDetails" table where I am getting
number of "Styles" per product. I am using "DataTable" for
fetching product details(including style number). Now, I
am filtering this datatable on "StyleNumber" for fetching
style details and using that filtered Datatable as a
source to child DataGrid control to display the other
details associated with each style #.

Now to fetch the style details and assign directly to the
datagrid control I am taking help of Dynamic SQL that
builds the desired columns dynamically along with the
values associated with these column(i.e. the names of
columns are specified during run time ).Now this result I
am attaching to DataGrid control so that it creates layout
for me.
Now My requirement:

1) For each value in detail , I would like to check
whether value is present or not ?
2) If value is present I want to display that value in
TEXTBOX control
3) Finally I want to save the updated value to the same
database.

My problems are as under :

1) How do I bind TextBox control for each value that the
column will fetch?
2) How do I change the caption of this columns based upon
the default names? ( i.e. since the names are dynamically
assoicated with each column I am unable to use
e.Item.DataBound("some Column Name")). Also I tried to
catch these values useing delegate onItemDataBound of
Datagrid control)

Awaiting for your reply

Thanks with regards
Anil