Get UIElement children from multiple parent

Question

I have a StackPanel with some WrapPanel . inside each WrapPanel located two element:

<StackPanel FlowDirection="RightToLeft" Grid.Column="2" Grid.Row="1" Name="check_boxes_layout">
    <WrapPanel>
        <CheckBox Name="chk1" Checked="Checked_Changed" Unchecked="Unchecked"></CheckBox>
        <Rectangle Width="50" Fill="Red" Name="rec1" Margin="10 2 2 2"/>
    </WrapPanel>
    <WrapPanel>
        <CheckBox Name="chk12" Checked="Checked_Changed" Unchecked="Unchecked"></CheckBox>
        <Rectangle Width="50" Fill="Blue" Name="rec2" Margin="10 2 2 2"/>
    </WrapPanel>
<StackPanel/>

I want to get all children of type check box .how can i do this?

foreach (var item in check_boxes_layout.Children.OfType<CheckBox>())
{
    //this code just return Wrap Panel
}

Thank You in Advance.

score 2 · Accepted Answer · answered Mar 03 '13 at 09:39

Use this recursive function:

List<UIElement> GetAllChildren(Panel c)
{
    List<UIElement> list = c.Children.Cast<UIElement>().ToList();
    foreach( var elem in list.OfType<Panel>())
        list.AddRange(GetChildren(elem));
    return list;
}

No you can say:

foreach (var item in GetAllChildren(check_boxes_layout).OfType<CheckBox>())
{
    //...
}

score 0 · Answer 2 · edited Aug 23 '13 at 01:01

0

I got it first loop through warp panels and get its child

 foreach (WrapPanel warppanel in check_boxes_layout.Children)
 {
     foreach (var item in warppanel.Children.OfType<CheckBox>)
     {
          .
          .
          .
     }
 }

edited Aug 23 '13 at 01:01

Dave Clemmer

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answered Mar 03 '13 at 09:39

KF2

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What if you have another `Panel` or `Grid` inside the `WrapPanel`? My answer handles any level of nesting. – Mohammad Dehghan Mar 03 '13 at 09:46
@MD.Unicorn, this (OP's) answer does answer OP's *current* question. None the less it's not a very good solution because it depends on the current layout: it will fail if new panels are introduced. That is, it's not future-proof. – Cosmin Prund Mar 03 '13 at 09:50

Get UIElement children from multiple parent

2 Answers2

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