public static void DataGridItemPropertyChanged <Item>(System.Windows.Controls.DataGrid dataGrid,
System.Collections.ObjectModel.ObservableCollection <Item> items,
Item item,
string propertyName,
ItemUpdatedPredicate updatePredicate,
ItemInsertEmptyPredicate insertEmptyPredicate,
ItemRemovePredicate <Item> removePredicate,
ItemRemovedPredicate removedPredicate)
where Item : VariableItem
{
int index = items.IndexOf(item);
if (index < 0 || index >= dataGrid.Items.Count)
{
return;
}
if (propertyName == "Name")
{
if (item.Name == null || item.Name == "")
{
if (index < dataGrid.Items.Count - 1)
{
removePredicate(item);
items.RemoveAt(index);
removedPredicate(index);
if (index > 0)
{
Util.SelectDataGridItem(dataGrid, index - 1);
}
}
}
else
{
updatePredicate(index);
int next_index = index + 1;
// insert new empty row if needed
if (next_index == items.Count)
{
insertEmptyPredicate(next_index);
}
// select current row, move to next one is automatic
Util.SelectDataGridItem(dataGrid, index);
}
}
else if (propertyName == "IsEnabled")
{
updatePredicate(index);
}
}
public static void DataGridItemPropertyChanged <Item>(System.Windows.Controls.DataGrid dataGrid,
System.Collections.ObjectModel.ObservableCollection <Item> items,
Item item,
string propertyName,
ItemUpdatedPredicate updatePredicate,
ItemInsertEmptyPredicate insertEmptyPredicate)
where Item : VariableItem
{
DataGridItemPropertyChanged(dataGrid, items, item, propertyName,
updatePredicate,
insertEmptyPredicate,
delegate(Item it) { },
delegate(int index) { });
}
