public void AddDataSource(DataSource ds)
{
if (ds.Model != this)
{
throw new Exception("This data source does not belong to this model.");
}
_sources.Add(ds);
}
// add a data source to the model
void _btnAddSource_Click(object sender, RoutedEventArgs e)
{
var ds = new DataSource(Model);
var dlg = new ModalDialog("Add Data Source", new DataSourceEditor(), ds);
dlg.ShowDialog(MessageBoxButton.OKCancel);
dlg.Closed += (ss, ee) =>
{
if (!ee.Cancel)
{
Model.AddDataSource(ds);
}
};
}
void DataSources_CurrentChanged(object sender, EventArgs e)
{
if (_ds != null)
{
_ds.Tables.CurrentChanged -= Tables_CurrentChanged;
}
_ds = _vm.DataSources.CurrentItem as DataSource;
if (_ds != null)
{
_ds.Tables.CurrentChanged += Tables_CurrentChanged;
}
OnCanExecuteChanged();
}