Hi Paolo,

You can use the System.Windows.Forms.Timer. Once you get data from your database, I think all you'll need to do is use the DataSet.Merge() method, something like this (off the top of my head and untested):

//Note that you need to set the PrimaryKey property of a DataTable in order to use Merge.

DataSet dsRefreshData = new DataSet();
MyDataAdapter.Fill(dsRefresh);
dsRefresh.Tables[0].PrimaryKey = new DataColumn[1] {dsRefresh.Tables[0].Columns["MyPKColumn"]};

// Assuming that the tables in dsMyData also have PrimaryKeys set
dsMyData.Merge(dsRefresh);

~~Bonnie

>Hi,
>
>On my main form i binded several textboxes to a datatable; what id like to do is every couple of minutes, or when the user clicks on a refresh button, i can pick up the changes in the database and merge it with my datatable.
>
>any suggestions?
>
>thanks,
>
>paolo