> 
> I have a form and 5 textbox bounded to a table, called Listing; this table
> contains many records; every textbox bounds to a different column and show
> some price (price1, price2, ...price5). I add, update and display the
> records just using the binding navigator.
> Then I need another textbox that must show the sum of all the 5 prices. This
> 'total' field must then be written in a column, called Total, inside the
> same table. Obviously I want this value comes automatically, so when I go
> through records I could see the total displayed for each one.
> Can anybody help me on how to achieve this?
>
> Thanks.
> Max
>
>
>

"Petar Repac" <petar.repac@replace_with_google_mail_service.com> ha scritto
nel messaggio news:%23fFO3i7SHHA.192@TK2MSFTNGP04.phx.gbl...
> use expression-bound DataColumn
>
> look at
> http://www.ondotnet.com/pub/a/dotnet/2003/05/26/datacolumn_expressions.html?page=last
> or
> http://msdn.microsoft.com/msdnmag/issues/07/01/datapoints/default.aspx
>
> Petar Repac
>
> max wrote:
>>  I have a form and 5 textbox bounded to a table, called Listing; this
>> table contains many records; every textbox bounds to a different column
>> and show some price (price1, price2, ...price5). I add, update and
>> display the records just using the binding navigator.
>> Then I need another textbox that must show the sum of all the 5 prices.
>> This 'total' field must then be written in a column, called Total, inside
>> the same table. Obviously I want this value comes automatically, so when
>> I go through records I could see the total displayed for each one.
>> Can anybody help me on how to achieve this?
>>
>> Thanks.
>> Max
>>
>>

"Max" <nobody@devnull.spamcop.net> schreef in bericht
news:45cba2f9$0$20804$5fc30a8@news.tiscali.it...
> Petar,
> That's not really what I need.
> The example you post concerns datagridview and columns added to a dataset.
> I need the 'total' columns is displayed on a textbox, and the value is
> added to the database, in a column called 'Total'.
> Thanks.
> Max
> "Petar Repac" <petar.repac@replace_with_google_mail_service.com> ha
> scritto nel messaggio news:%23fFO3i7SHHA.192@TK2MSFTNGP04.phx.gbl...
>> use expression-bound DataColumn
>>
>> look at
>> http://www.ondotnet.com/pub/a/dotnet/2003/05/26/datacolumn_expressions.html?page=last
>> or
>> http://msdn.microsoft.com/msdnmag/issues/07/01/datapoints/default.aspx
>>
>> Petar Repac
>>
>> max wrote:
>>>  I have a form and 5 textbox bounded to a table, called Listing; this
>>> table contains many records; every textbox bounds to a different column
>>> and show some price (price1, price2, ...price5). I add, update and
>>> display the records just using the binding navigator.
>>> Then I need another textbox that must show the sum of all the 5 prices.
>>> This 'total' field must then be written in a column, called Total,
>>> inside the same table. Obviously I want this value comes automatically,
>>> so when I go through records I could see the total displayed for each
>>> one.
>>> Can anybody help me on how to achieve this?
>>>
>>> Thanks.
>>> Max
>>>
>>>
>