List<T>的ForEach方法（可以使用“语句lambda”作为其参数），如下例子：

private void OKButton_Click(object sender, RoutedEventArgs e) {
this.DialogResult = true;
// GetSelectedJZ(Shu.Items[0] as TreeViewItem);
//选择后返回
if (GetJZ_Event!=null) {
//排除不是建筑的选项
V_FQ.Rows.Where(a =>
V_FQ.Value(a, "cc").ToString() == "1"
).ToList().ForEach(b => {
if (Shu.SelectedItemsZJ.Contains(V_FQ.Value(b, "zj").ToString()))
Shu.SelectedItemsZJ.Remove(V_FQ.Value(b, "zj").ToString());
});
GetJZ_Event(Shu.SelectedItemsZJ);
}
}

_graphicsManager.Graphics.Where<Graphic>(
(item) =>
{
if ((ShowAperture)item.Symbol.GetValue(PolicePictureMarkerSymbol.ShowApertureProperty) == ShowAperture.Yes)
{
item.SetShowAperture(ShowAperture.No);
return true;
}
else
{
return false;
}
}
);

_graphicsManager.Graphics.Where<Graphic>(item => (ShowAperture)item.Symbol.GetValue(PolicePictureMarkerSymbol.ShowApertureProperty) == ShowAperture.Yes).ToList().ForEach(p => p.SetShowAperture(ShowAperture.No));

_graphicsManager.Graphics.Where<Graphic>(item => (ShowAperture)item.Symbol.GetValue(PolicePictureMarkerSymbol.ShowApertureProperty) == ShowAperture.Yes).ToList().ForEach((p) =>
{
p.SetShowAperture(ShowAperture.No);
});