WPF: complex tab focus behavior

Question

Guys,

What's up :-) Need your help.

My control is constructed from nested list boxes and tree views. Each list box / tree view item also contains rich text boxes and other controls.

I want to define a 'tab' focus behavior such that when the user clicks 'Tab' the next focusable item (according to an order i define) will become focused.

Currently it doesn't work as i accept (it only works partially).

My question is not specific to my case - rather on how to define such behavior at all. As an extreme example, let's say i want to completely control this and make the focus jump between items not physically near.

Anyone might know how this can be controlled?

YOUR HELP WILL BE APPRECIATED :-) Gili

Answer 1

Are you looking for the KeyboardNavigation.TabIndex property?

Answer 2

Joe, this mechanism is smarter than i thought, check this nesting - it works perfectly:

        <ListBox KeyboardNavigation.TabNavigation="Continue">
            <ListBoxItem Focusable="False">
                <ListBox KeyboardNavigation.TabNavigation="Continue">
                    <ListBox.Items>
                        <ListBoxItem Focusable="False">
                            <TextBox Width="300" KeyboardNavigation.TabIndex="1" Focusable="True"/>
                        </ListBoxItem>
                        <ListBoxItem Focusable="False">
                            <TextBox Width="300" KeyboardNavigation.TabIndex="2" Focusable="True"/>
                        </ListBoxItem>
                        <ListBoxItem Focusable="False">
                            <TextBox Width="300" KeyboardNavigation.TabIndex="3" Focusable="True"/>
                        </ListBoxItem>
                    </ListBox.Items>
                </ListBox>
            </ListBoxItem>
            <ListBoxItem Focusable="False">
                <ListBox KeyboardNavigation.TabNavigation="Continue">
                    <ListBox.Items>
                        <ListBoxItem Focusable="False">
                            <TextBox Width="300" KeyboardNavigation.TabIndex="1" Focusable="True"/>
                        </ListBoxItem>
                        <ListBoxItem Focusable="False">
                            <StackPanel>
                                <TextBox Width="300" KeyboardNavigation.TabIndex="3" Focusable="True"/>
                                <Border BorderBrush="Red">
                                    <ListBox KeyboardNavigation.TabNavigation="Continue">
                                        <ListBoxItem Focusable="False">
                                            <ListBox KeyboardNavigation.TabNavigation="Continue">
                                                <ListBox.Items>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="1" Focusable="True"/>
                                                    </ListBoxItem>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="2" Focusable="True"/>
                                                    </ListBoxItem>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="3" Focusable="True"/>
                                                    </ListBoxItem>
                                                </ListBox.Items>
                                            </ListBox>
                                        </ListBoxItem>
                                        <ListBoxItem Focusable="False">
                                            <ListBox KeyboardNavigation.TabNavigation="Continue">
                                                <ListBox.Items>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="1" Focusable="True"/>
                                                    </ListBoxItem>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="2" Focusable="True"/>
                                                    </ListBoxItem>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="3" Focusable="True"/>
                                                    </ListBoxItem>
                                                </ListBox.Items>
                                            </ListBox>
                                        </ListBoxItem>
                                    </ListBox>
                                </Border>
                            </StackPanel>
                        </ListBoxItem>
                        <ListBoxItem Focusable="False">
                            <StackPanel>
                                <TextBox Width="300" KeyboardNavigation.TabIndex="3" Focusable="True"/>
                                <Border BorderBrush="Red">
                                    <ListBox KeyboardNavigation.TabNavigation="Continue">
                                        <ListBoxItem Focusable="False">
                                            <ListBox KeyboardNavigation.TabNavigation="Continue">
                                                <ListBox.Items>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="1" Focusable="True"/>
                                                    </ListBoxItem>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="2" Focusable="True"/>
                                                    </ListBoxItem>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="3" Focusable="True"/>
                                                    </ListBoxItem>
                                                </ListBox.Items>
                                            </ListBox>
                                        </ListBoxItem>
                                        <ListBoxItem Focusable="False">
                                            <ListBox KeyboardNavigation.TabNavigation="Continue">
                                                <ListBox.Items>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="1" Focusable="True"/>
                                                    </ListBoxItem>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="2" Focusable="True"/>
                                                    </ListBoxItem>
                                                    <ListBoxItem Focusable="False">
                                                        <TextBox Width="300" KeyboardNavigation.TabIndex="3" Focusable="True"/>
                                                    </ListBoxItem>
                                                </ListBox.Items>
                                            </ListBox>
                                        </ListBoxItem>
                                    </ListBox>
                                </Border>
                            </StackPanel>
                        </ListBoxItem>
                    </ListBox.Items>
                </ListBox>
            </ListBoxItem>
        </ListBox>


    </StackPanel>

</Grid>

:-) Thanx a lot for the Help!