private int ItemToShowAfterDelete(StudentListViewModel parent)
{
var result = -1;
if (parent != null)
{
StudentInfoList parentModel = (StudentInfoList)parent.Model;
for (var index = 0; index < parentModel.Count; index++)
{
var info = parentModel[index];
if (info.StudentId == _model.StudentId)
{
if (parentModel.Count > index + 1)
{
result = parentModel[index + 1].StudentId;
}
else if (parentModel.Count > 1)
{
result = parentModel[index - 1].StudentId;
}
break;
}
}
}
return(result);
}
public void Delete()
{
StudentListViewModel parent = null;
var newItem = -1;
if (Parent != null)
{
parent = Parent as StudentListViewModel;
newItem = ItemToShowAfterDelete(parent);
}
_model.Delete();
CanCreate = true;
CanSave = false;
CanDelete = false;
TryClose();
if (parent != null)
{
parent.ListItemId = newItem;
}
}
