How to mix / combine checkboxes and radiobuttons in a TreeView?

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I use the below xaml to list hierarchical lists with checkboxes in a treeview and it works fantastic so far. But what i need is to determine the Control between a checkbox and a radiobutton for my child property. In some cases the user has the option for multible selection (checkbox) and in other cases he has to decide between them (radiobutton). How can i combine the radiobutton and checkbox control in a treeview?

XAML :

<TreeView.ItemTemplate>
    <HierarchicalDataTemplate ItemsSource="{Binding Child}">
        <StackPanel Orientation="Horizontal">
            <Image Source="{Binding ImgPath}" VerticalAlignment="Center"  Margin="2" />
            <CheckBox IsChecked="{Binding IsChecked, Mode=TwoWay}" VerticalAlignment="Center" Margin="2" />
            <TextBlock Text="{Binding Name}" VerticalAlignment="Center" Margin="2" />
        </StackPanel>
    </HierarchicalDataTemplate>
</TreeView.ItemTemplate>

Thank you in advance...

Posted 6-Oct-15 12:32pm

TurgayTürk

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VR Karthikeyan · Accepted Answer · 2015-10-06T19:49:00

Hi, Just define two HierarchicalDataTemplate with DataType. One is for the Child having CheckBox Control, and Other one is for the Child having RadioButton. Like,

For CheckBox Child Item,

XML

<TreeView.ItemTemplate>
    <HierarchicalDataTemplate DataType="{x:Type local:CheckBoxChild}" >
        <StackPanel Orientation="Horizontal">
            <Image Source="{Binding ImgPath}" VerticalAlignment="Center"  Margin="2" />
            <CheckBox IsChecked="{Binding IsChecked, Mode=TwoWay}" VerticalAlignment="Center" Margin="2" />
            <TextBlock Text="{Binding Name}" VerticalAlignment="Center" Margin="2" />
        </StackPanel>
    </HierarchicalDataTemplate>
</TreeView.ItemTemplate>

For RadioButton Child Item,

XML

<TreeView.ItemTemplate>
    <HierarchicalDataTemplate DataType="{x:Type local:RadioButtonChild}" >
        <StackPanel Orientation="Horizontal">
            <Image Source="{Binding ImgPath}" VerticalAlignment="Center"  Margin="2" />
            <RadioButton GroupName="Selection" Name="{Binding Option1Name}" IsChecked="{Binding IsOption1Checked, Mode=TwoWay}" VerticalAlignment="Center" Margin="2" />
          <RadioButton GroupName="Selection" Name="{Binding Option2Name}" IsChecked="{Binding IsOption2Checked, Mode=TwoWay}" VerticalAlignment="Center" Margin="2" />                              
        </StackPanel>
    </HierarchicalDataTemplate>
</TreeView.ItemTemplate>

Here local refers your application's namespace.
And, Just define two classes for CheckBox Child Item and RadioButton ChildItem, then based on these classes you can create objects and you can add those objects to your treeview like,

C#

YourTreeView.Items.Add(RadioButtonChildObject);
YourTreeView.Items.Add(CheckBoxChildObject);