public static AutomationElement FirstOrDefault(this AutomationQueryable source, Expression <Func <AutomationTypeHolder, bool> > predicate)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (predicate == null)
{
throw new ArgumentNullException("predicate");
}
var result = source.First(predicate);
if (result != null)
{
return(result);
}
else
{
return(null);
}
}
//public static IEnumerable<AutomationElement> Where(this AutomationQueryable source, Expression<Func<AutomationTypeHolder, bool>> predicate)
//{
// if (source == null)
// {
// throw new ArgumentNullException("source");
// }
// if (predicate == null)
// {
// throw new ArgumentNullException("predicate");
// }
// var result = (AutomationElementCollection)source.Provider.Execute(predicate);
// foreach (AutomationElement el in result)
// {
// yield return el;
// }
//}
public static AutomationElement First(this AutomationQueryable source, Expression <Func <AutomationTypeHolder, bool> > predicate)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (predicate == null)
{
throw new ArgumentNullException("predicate");
}
var result = (AutomationElement)source.Provider.Execute(predicate);
return(result);
//var result = (IEnumerable)source.Provider.Execute(predicate);
//AutomationElement el = null;
//var enumerator = result.GetEnumerator();
//if (enumerator.MoveNext())
//{
// el = (AutomationElement)enumerator.Current;
//}
//return el;
}
