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Progamatically Adding XAML Controls Problem

Posted on 2014-01-29
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Last Modified: 2014-02-03
I'm trying to add controls programmatically in my WP8 project but get an error that the StackPanel to which I'm trying to add the controls to is not declared.

Is there some limitation on adding controls in a DataTemplate or is something else going wrong?

       
   <!--ContentPanel - place additional content here-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <phone:LongListSelector Name="ListItems">
                <phone:LongListSelector.ItemTemplate>
                    <DataTemplate>
                        <StackPanel Name="DataPanel" Orientation="Horizontal">
                            <CheckBox Name="CheckBoxComplete" IsChecked="{Binding sActive, Mode=TwoWay}" Checked="CheckBoxComplete_Checked" Content="{Binding sStartDate}" Margin="10,5" VerticalAlignment="Center"/>
                        </StackPanel>
                    </DataTemplate>
                </phone:LongListSelector.ItemTemplate>
            </phone:LongListSelector>
        </Grid>

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            Dim newBtn As New System.Windows.Controls.Button
            newBtn.Content = "A New Button"
            DataPanel.Children.Add(newBtn)

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Question by:Dodsworth
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6 Comments
 
LVL 11

Expert Comment

by:jasonduan
ID: 39818354
"DataPanel" is not available directly in your code because it is inside the "ItemTemplate", which means there maybe multiple items that contains "DataPanel".

If you really need access "DataPanel" in your code, you'll have to iterate the items, and use "FindName()" method to find it.
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LVL 1

Author Comment

by:Dodsworth
ID: 39820208
Could I somehow generate the whole datatemplate and add that in code?
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LVL 11

Expert Comment

by:jasonduan
ID: 39821597
I am not sure of that and i would not do that. But i am curious of why you need to "generate the whole datatemplate and add that in code"? What do you really want to achieve? Maybe there is a better solution othan than doing this?
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LVL 1

Author Comment

by:Dodsworth
ID: 39823598
Well It all started with another post..

Original Question

I thought that if I queried the fields of the datasource using reflection, then I could programmatically add the correct type of control to the datatemplate.
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LVL 11

Accepted Solution

by:
jasonduan earned 500 total points
ID: 39824196
Replied to your original question. Let me know if it works or not.
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Author Closing Comment

by:Dodsworth
ID: 39829778
Double the points :)
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