private void OpenWindowExcecute()
{
if (PreviewSelect != null)
{
var arg = new PreviewSelectEventArgs();
PreviewSelect(this, arg);
if (arg.Cancel == true)
{
ClearLookup();
return;
}
}
LoadData();
if (valueColumnPropInfo == null || idColumnPropInfo == null)
{
ClearLookup();
return;
}
PrepareLookupWindow();
if (SelectionMode == LookupSelectionMode.Single)
{
lookupWindow.ShowDialog();
}
else
{
if (ItemsSource == null || ItemsSource.Count() == 0)
{
ClearLookup();
return;
}
else
{
foreach (var item in ItemsSource)
{
if (!(item is ISelectable))
{
return;
}
break;
}
}
if (SelectedIndices != null)
{
foreach (var item in SelectedItems)
{
(item as ISelectable).IsSelected = true;
}
}
if (lookupWindow.ShowDialog() == true)
{
var itemList = new List <object>();
var indexList = new List <int>();
var idList = new List <int>();
int counter = -1;
foreach (var item in ItemsSource)
{
counter++;
if ((item as ISelectable).IsSelected)
{
indexList.Add(counter);
itemList.Add(item);
var id = idColumnPropInfo?.GetValue(item) as int?;
if (id != null)
{
idList.Add(id.Value);
}
}
}
if (itemList.Count > 0)
{
ChangeSource = ChangeSourceEnum.FromComponent;
SelectedItems = itemList;
SelectedIndices = indexList;
SelectedIds = idList;
ChangeSource = ChangeSourceEnum.None;
}
else
{
ClearLookup();
}
}
}
}
private void OpenWindowExcecute()
{
if (PreviewSelect != null)
{
var arg = new PreviewSelectEventArgs();
PreviewSelect(this, arg);
if (arg.Cancel == true)
{
ClearLookup();
return;
}
}
LoadData();
if (valueColumnPropInfo == null || idColumnPropInfo == null)
{
ClearLookup();
return;
}
PrepareLookupWindow();
if (SelectionMode == LookupSelectionMode.Single)
{
treeLookupWindow.ShowDialog();
}
else
{
if (ItemsSource == null)
{
ClearLookup();
return;
}
if (SelectedItems != null)
{
foreach (var item in SelectedItems)
{
if (item is ISelectable)
{
(item as ISelectable).IsSelected = true;
}
}
}
if (treeLookupWindow.ShowDialog() == true)
{
if (typeof(ISelectable).IsAssignableFrom(ResultType))
{
var itemList = new List <object>();
var idList = new List <int>();
var list = FlatItemsSource.Cast <ISelectable>().Where(x => x.IsSelected);
foreach (var item in list)
{
itemList.Add(item);
var id = idColumnPropInfo?.GetValue(item) as int?;
if (id != null)
{
idList.Add(id.Value);
}
}
if (itemList.Count > 0)
{
ChangeSource = ChangeSourceEnum.FromComponent;
SelectedItems = itemList;
SelectedIds = idList;
ChangeSource = ChangeSourceEnum.None;
}
else
{
ClearLookup();
}
}
}
}
}