private bool CanSaveCommandExecute()
{
bool isCategoryNameUnique = true;
if (categories.FirstOrDefault(a => a.CategoryName == CategoryName) != null && isAddition)
{
isCategoryNameUnique = false;
}
if (string.IsNullOrEmpty(CategoryName) || SelectedType == null || CategoryName.Any(a => char.IsDigit(a)) || !isCategoryNameUnique)
{
return(false);
}
else
{
return(true);
}
}