public UiBase AddNew()
{
// update current, if necessary
SelectionChanged(null);
// add new item
IUiBase newItem = null;
try {
newItem = service.Create();
} catch (Exception ex) {
Trace.TraceError("Add new item : " + ex.Message);
}
if (newItem == null)
{
view.ShowMessage("Add Item", "Could not create a new line", MessageActions.Ok);
return(null);
}
// select the new item
var newIndex = service.GetIndex(newItem);
Debug.Assert(newIndex >= 0);
RefreshData();
//SetDetailDataSourceIndex(newIndex);
view.SelectedItem = newItem;
return(newItem as UiBase);
}
public virtual void SelectionChanged(IUiBase item)
{
if (service.SelectedItem == item)
{
return; // re-selected the same item
}
var oldSelection = service.SelectedItem;
if (oldSelection != null)
{
oldSelection.PropertyChanged -= Selection_PropertyChanged;
if (oldSelection.IsDirty)
{
if (!oldSelection.Update())
{
view.ShowMessage("Delete", "Could not update the line", MessageActions.Ok);
// move selection back to it
view.SetSelection(item);
return;
}
}
view.SetRowStatus(service.GetIndex(oldSelection), oldSelection.IsLocked ? RowStatus.Locked : RowStatus.Normal);
}
// set new selection
service.SelectedItem = item;
if (item == null)
{
view.DetailSelection = null;
return;
}
// TODO pass the object, not the index
//var index = service.GetIndex(item);
//view.DetailDataSourceIndex = index;
item.PropertyChanged += Selection_PropertyChanged;
view.GridReadOnly = item.IsLocked;
}