Accessing data in AddNew row

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RRB - 20 Nov 2005 02:24 GMT

Hi,

I have a datagrid with some columns that cause recalculation of values
in controls elsewhere on my form. These recalculations need to occur
when these datagrid cells have changed (I tied to the Validated event).
This is also true for the AddNew row.

My recalculation method currently recalculates by iterating through the
rows of the datagrid. The problem is that the AddNew row is not yet
added, so the relevant cells aren't included in the calculations.

I therefore need to find a way to access the commited values in the
AddNew row. I looked in the CurrencyManager but didn't find a reference
to the row. Where can I find a reference to this row?

Thanks in advance!

RRB

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Bart Mermuys - 20 Nov 2005 10:58 GMT

Hi,

> Hi,
>
[quoted text clipped - 10 lines]
> AddNew row. I looked in the CurrencyManager but didn't find a reference
> to the row. Where can I find a reference to this row?

Even when you bind the DataGrid to a DataTable or DataSet it is always
internally bound to a DataView. The DataView includes the new row even when
it hasn't been accepted yet so it can still disappear when the user cancels
the new row.

CurrencyManager cm = (CurrencyManager)
dataGrid1.BindingContext[dataGrid1.DataSource, dataGrid1.DataMember];

DataView dv = (DataView)cm.List;

foreach ( DataRowView drv in dv )
Console.WriteLine( drv["columnName -or- index"] );

Note that DataView also has an event called ListChanged which may be usefull
to you...

HTH,
Greetings

> Thanks in advance!
>
[quoted text clipped - 7 lines]
>
> *** Sent via Developersdex http://www.developersdex.com ***

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RRB - 29 Nov 2005 15:09 GMT

Hi Bart,

I got sidetracked by some other issues so I'm only just getting back to
this issue. Thanks for your reply, the List property is exactly what I
need.

Thanks again,
RRB

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Accessing data in AddNew row

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