public override async void OpenItemEditor(TItem item)
{
EditingItem = item;
if (Form == null)
{
return;
}
Cache.Set(EdiTItemCacheKey, EditingItem.DeepClone(), ObjectCache.InfiniteAbsoluteExpiration); // cache item state so it can be restored later
bool result = false;
try
{
result = (bool)await DialogHost.Show(Form,
(sender, args) => {
OnItemEditorOpening(sender, new ItemEditorOpeningDialogEventArgs <TItem>(item));
},
(sender, args) => {
ItemEditorClosingDialogEventArgs <TItem> extArgs = new ItemEditorClosingDialogEventArgs <TItem>(item);
OnFormClosing(extArgs);
if (extArgs.IsCancelled)
{
args.Cancel();
}
});
}
catch (Exception)
{
OnOpenFormFailed(item);
return;
}
OnItemEdited(new ItemEditedEventArgs <TItem>(result, (TItem)Cache.Get(EdiTItemCacheKey), item));
Cache.Remove(EdiTItemCacheKey);
}
private void DefaultOnFormClosing(object sender, ItemEditorClosingDialogEventArgs <TItem> e)
{
bool result = (bool)e.Result;
bool canClose = CanCloseItemEditor(new ItemEditedEventArgs <TItem>(result, (TItem)Cache.Get(EdiTItemCacheKey), e.Item));
if (!canClose)
{
e.Cancel();
}
}
public virtual async void OpenItemEditor(TItem item)
{
EditingItem = item;
if (FormProvider == null)
{
return;
}
UsedForm = FormProvider.GetUIElement();
Cache.Set(EdiTItemCacheKey, EditingItem.DeepClone()); // cache item state so it can be restored later
bool result = false;
try
{
result = (bool)await DialogService.Show(UsedForm,
(sender, args) => {
OnItemEditorOpening(sender, new ItemEditorOpeningDialogEventArgs <TItem>(item));
if (args.ShouldClose)
{
args.Close();
}
},
(sender, args) => {
ItemEditorClosingDialogEventArgs <TItem> extArgs = new ItemEditorClosingDialogEventArgs <TItem>(args.Result, item);
OnFormClosing(extArgs);
if (extArgs.IsCancelled)
{
args.Cancel();
}
}).ConfigureAwait(true);
}
catch (Exception ex)
{
Log.Error(ex, "Couldn't open form");
OnOpenFormFailed(item);
return;
}
OnItemEdited(new ItemEditedEventArgs <TItem>(result, (TItem)Cache.Get(EdiTItemCacheKey), item));
Cache.Remove(EdiTItemCacheKey);
}
protected virtual void OnFormClosing(ItemEditorClosingDialogEventArgs <TItem> e) => FormClosing.Invoke(this, e);