返回指定Canvas中的所有TextBlock

TextBlock[] FindAllTextBlock(Canvas container)

{

List<TextBlock> tbl = new List<TextBlock>();

for (int i = 0; i < container.Children.Count; i++)

{

//如果是TextBlock，就加入到List中

if (container.Children.GetType() == typeof(TextBlock))

tbl.Add(container.Children as TextBlock);

//如果是Canvas，就继续递归查找

else if (container.Children.GetType() == typeof(Canvas))

tbl.AddRange(FindAllTextBlock(container.Children as Canvas));

}

return tbl.ToArray();

}