tur*_*wer 4 .net c# silverlight
我有一个列表框,其中包含一些项目.这些项目是网格,包含各种文本块,按钮等.
foreach (Grid thisGrid in myListBox.SelectedItems)
{
foreach (TextBlock thisTextblock in thisGrid.Children)
{
//Do Somthing
}
}
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然而,这引发了一个例外,因为除了Textblock之外还有其他项目.我怎么能适应这个?谢谢.
Mar*_*ell 13
当我读到它时,这里的问题是内部循环,并且存在的东西Children不是TextBlocks.
如果LINQ可用:
foreach (TextBlock thisTextblock in thisGrid.Children.OfType<TextBlock>()) {
// ... do something here
}
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除此以外:
foreach (object child in thisGrid.Children) {
TextBlock thisTextblock = child as TextBlock;
if(thisTextblock == null) continue;
// ... do something here
}
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