Ian ,
Thanks for that ,
I was sort of hoping to do it without using the changed events - I avoid
events unless they are neccesary as forms are cluttered with them and
programmers new o the program often struggle. .
The not uodating until I leave the field is fine as on this control the
customer only selects the country as long as the id is in the DataSet Im
happy.
So my choice is something that may be dodgy versus something that
I read that the devs of .Net are working on multisource dataviews and this
would extend to DataSets.
Mmm choices.
Also any reason you bound to the Dataset rather than the table ?
eg
> countryComboBox.DataBindings.Add("SelectedValue",
> customerDataSet.Address, "countryID");
comboCountry.DataBindings.Add("SelectedValue",
customerDataset1, "Address.CountryID");
Ben
-----Original Message-----
From: dotnet discussion [mailto:[EMAIL PROTECTED]]On Behalf Of Ian
Griffiths
Sent: Thursday, 9 May 2002 7:23 PM
To: [EMAIL PROTECTED]
Subject: Re: [DOTNET] WinForms Data Binding
D'Oh! Just spotted something slightly stupid in my previous post:
> bm = BindingContext[customerDataset1, "Address"];
> DataRowView drv = bm.Current as DataRowView;
> CustomerDataset.AddressRow addressRow =
> drv.Row as CustomerDataset.AddressRow;
>
> addressRow["CountryID"] = val;
> }
Actually you don't need to bother casting the DataRowView in this example.
Having got that all you need is this:
drv.Row["CountryID"] = val;
But if you want typesafe access through a typed dataset, use the above code.
But then don't do what I did and forget the exploit the type safety...
Replace the last line with:
addressRow.CountryID = val;
which is not only type-safe, but should be marginally faster since it avoids
doing the string lookup on the column name.
--
Ian Griffiths
DevelopMentor
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