Binding of ListBox ?

05-19-2008 9:45 AM |

Hi all,

I have a listBox :

<ListBox x:Name="myList" Grid.Column="2" Height="400" >
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid  Width="400">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition/>
                            <ColumnDefinition/>
                        </Grid.ColumnDefinitions>
                        <Rectangle Stroke="Black"/>
                        <TextBlock Text="{Binding Item1}" Margin="5" Grid.Column="0"/>
                        <Rectangle Stroke="Black" Grid.Column="1"/>
                        <TextBlock x:name="theItem2" Text="{Binding Item2}" Margin="15" FontSize="10" Grid.Column="1"/>
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
</ListBox>

 binded with myList.ItemsSource = query with linq

Some times, depending on the item binded, i would like to hide theItem2.

But I can't find ItemCreated event or something else

How can I do ?

Thanks for your help 

Re: Binding of ListBox ?

05-20-2008 8:08 AM |

Thanks for your answer, this is working well

I've another question :

with the same listbox : 

<ListBox x:Name="myList" Grid.Column="2" Height="400" >
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid x:Name="theGrid" Width="400">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition/>
                            <ColumnDefinition/>
                        </Grid.ColumnDefinitions>
                        <Rectangle Stroke="Black"/>
                        <TextBlock Text="{Binding Item1}" Margin="5" Grid.Column="0"/>
                        <Rectangle Stroke="Black" Grid.Column="1"/>
                        <TextBlock x:name="theItem2" Text="{Binding Item2}" Margin="15" FontSize="10" Grid.Column="1"/>
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
</ListBox> 

I'm adding a name for the grid : theGrid

How can I access each dataTemplate in codebehing to manipulate the grid ?

(for example, after the grid has been constructed ...)

Thanks for your answer 

Re: Binding of ListBox ?

05-20-2008 8:49 AM |

I don't think you can access the controls in the ListItem by referring name because the item in list is repeated item.  So giving them a name does not do anything. The only way to access the item I found so far (in this beta1 release) is in the event handler's sender. I don't know what you want to achieve. There might be easy workaround for what you want to do.

Re: Binding of ListBox ?

05-20-2008 11:24 AM |

 This is enough for what I want to do.

Thanks for you help