Casting types inline

I'm still not clear on all the routes to this, and which one is best for readability. I'm trying to get

.Count

.Count

from a child object of

object sender

object sender

. The Type hierarchy is:

DirectDragTreeViewItem.GistViewModel.GistModel.IList<GistFileModel>

DirectDragTreeViewItem.GistViewModel.GistModel.IList<GistFileModel>

Here are a couple of ways I've tried:

int directCastListCount = (GistViewModel)((DirectDragTreeViewItem)sender).DataContext) // wtf!? gave up here
int paternMatchedListCount = ((((sender as DirectDragTreeViewItem).DataContext as GistViewModel).Gist as GistModel).Files as IList<GistFileModel>).Count();

int directCastListCount = (GistViewModel)((DirectDragTreeViewItem)sender).DataContext) // wtf!? gave up here
int paternMatchedListCount = ((((sender as DirectDragTreeViewItem).DataContext as GistViewModel).Gist as GistModel).Files as IList<GistFileModel>).Count();

Of course things could be nested deeper. Which is the best way (realise 'best' is ambiguous)

C#•2y ago•

7 replies

stigzler

Casting types inline

I'm still not clear on all the routes to this, and which one is best for readability. I'm trying to get

.Count

.Count

from a child object of

object sender

object sender

. The Type hierarchy is:

DirectDragTreeViewItem.GistViewModel.GistModel.IList<GistFileModel>

DirectDragTreeViewItem.GistViewModel.GistModel.IList<GistFileModel>

Here are a couple of ways I've tried:

int directCastListCount = (GistViewModel)((DirectDragTreeViewItem)sender).DataContext) // wtf!? gave up here
int paternMatchedListCount = ((((sender as DirectDragTreeViewItem).DataContext as GistViewModel).Gist as GistModel).Files as IList<GistFileModel>).Count();

int directCastListCount = (GistViewModel)((DirectDragTreeViewItem)sender).DataContext) // wtf!? gave up here
int paternMatchedListCount = ((((sender as DirectDragTreeViewItem).DataContext as GistViewModel).Gist as GistModel).Files as IList<GistFileModel>).Count();

Of course things could be nested deeper. Which is the best way (realise 'best' is ambiguous)

Casting types inline

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