topic FeatureDataForm scrollviewer -- bug? in ArcGIS API for Silverlight Questions

FeatureDataForm scrollviewer -- bug?

JudyTroutwine — Sun, 24 Jun 2012 06:10:57 GMT

The xaml below seems straightforward; however, the scrollviewer for the FeatureDataForm shows only the vertical bar. There are some wide fieds on the table records being partially displayed, and I tried various widths and heights for the form -- still no horizontal bar. Also, hiding the vertical bar has no effect -- it is still visible. Is this a bug?

<Border x:Name="FDFBorder" Visibility="Collapsed" Canvas.ZIndex="10" Grid.Row="2" IsHitTestVisible="True"
            Grid.Column="0" Grid.ColumnSpan="3" Background="Transparent" CornerRadius="10"
            HorizontalAlignment="Left" VerticalAlignment="Top" Margin="10,10,0,0" Width="300" Height="400"
            BorderBrush="Transparent" BorderThickness="3" >
      <Canvas x:Name="FDFCanvas" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="0" Visibility="Visible" >
        <Grid x:Name="FDFGrid" HorizontalAlignment="Left" VerticalAlignment="Top" Width="300" Height="400"
                   Margin="0" Visibility="Visible" Background="#CC5C90B2" Opacity="1.0" IsHitTestVisible="True"
                       MouseEnter="Grid_MouseEnter" MouseLeave="Grid_MouseLeave"
                            MouseLeftButtonDown="Handle_MouseDown" GotFocus="Grid_GotFocus"
                            MouseMove="Handle_MouseMove" SizeChanged="FDFGrid_SizeChanged"
                            MouseLeftButtonUp="Handle_MouseUp">
          <Grid.Effect>
            <DropShadowEffect Color="Black" Direction="-45" BlurRadius="10" Opacity=".75" />
          </Grid.Effect>
          <StackPanel x:Name="FormSP" Orientation="Vertical" Background="#CC5C90B2" Visibility="Visible">
            <esri:FeatureDataForm x:Name="FDForm" Height="Auto" Width="Auto" Margin="10,10,10,10" Background="#CC5C90B2"
                             FontSize="10" PropertyChanged="FDForm_PropertyChanged" Visibility="Visible"
                                   FeatureLayer="{Binding Path=Layers[Trees], ElementName=MyMap}"
                             IsReadOnly="False" LabelPosition="Left"
                                 ScrollViewer.HorizontalScrollBarVisibility="Visible" ScrollViewer.VerticalScrollBarVisibility="Visible"
                             TextInput="FDForm_TextInput" TextInputStart="FDForm_TextInputStart"
                             TextInputUpdate="FDForm_TextInputUpdate" EditEnded="FDForm_EditEnded"
                             BorderBrush="Aquamarine" HorizontalAlignment="Left" VerticalAlignment="Top">
            </esri:FeatureDataForm>
            <Button x:Name="CloseForm" VerticalAlignment="Bottom" HorizontalAlignment="Right" Margin="0,5,25,5" Visibility="Visible"
                    Content="Close" Click="FDFClose_Click"/>
          </StackPanel>
        </Grid>
      </Canvas>
    </Border>

Re: FeatureDataForm scrollviewer -- bug?

DominiqueBroux — Mon, 25 Jun 2012 07:13:33 GMT

I don't know if it's a bug but by default the HorizontalScrollbarVisibility is not visible.

To change that you have to retemplate the FeatureDataForm.

You can use Expression Blend and right-click on your FeatureDataForm and select "Edit Template" --> "Edit a copy...", then you will get the default control template.
Look for the ScrollViewer and add HorizontalScrollBarVisibility="Auto"

Re: FeatureDataForm scrollviewer -- bug?

JudyTroutwine — Thu, 28 Jun 2012 01:07:43 GMT

Dominique,

I have a copy of the FeatureDataForm style resource. I used that and simply edited thus

<ScrollBar x:Name="HorizontalScrollBar" Grid.Column="0" Height="15" IsTabStop="False" Maximum="{TemplateBinding ScrollableWidth}" Margin="-1,0,-1,-1" Minimum="0" Orientation="Horizontal" Grid.Row="1" Visibility="Visible" Value="{TemplateBinding HorizontalOffset}" ViewportSize="{TemplateBinding ViewportWidth}"/>

There is not an "Auto" value allowed in this context. The bar is now visible though with no slider. It seems something must be done to activate the bar. Perhaps widening the textboxes in the FeatureDataForm would do the trick. Can that be added to the style?

Re: FeatureDataForm scrollviewer -- bug?

DominiqueBroux — Thu, 28 Jun 2012 06:29:21 GMT

<ScrollBar x:Name="HorizontalScrollBar" Grid.Column="0" Height="15" IsTabStop="False" Maximum="{TemplateBinding ScrollableWidth}" Margin="-1,0,-1,-1" Minimum="0" Orientation="Horizontal" Grid.Row="1" Visibility="Visible" Value="{TemplateBinding HorizontalOffset}" ViewportSize="{TemplateBinding ViewportWidth}"/>

There is not an "Auto" value allowed in this context.

You have to set HorizontalScrollBarVisibility="Auto" on the ScrollViewer (not on the ScrollBar)

<ScrollViewer Style="{StaticResource CustomScrollViewerStyle}" IsTabStop="False"          Background="{x:Null}" Padding="{TemplateBinding Padding}"          VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">     <ContentPresenter x:Name="ContentPresenter" Margin="12,12,6,12"/> </ScrollViewer>

Re: FeatureDataForm scrollviewer -- bug?

JudyTroutwine — Fri, 29 Jun 2012 21:56:15 GMT

That solves it. Thanks.

Re: FeatureDataForm scrollviewer -- bug?

JudyTroutwine — Fri, 29 Jun 2012 23:49:51 GMT

That said, I would like to customize the textboxes for other reasons. The provided toolkit code does not include the xaml for the FeatureDataGrid. Is it available somewhere?

Re: FeatureDataForm scrollviewer -- bug?

JoeHershman — Sat, 30 Jun 2012 03:01:42 GMT

The FeatureDataGrid Xaml is in the FeatureDataGrid.Theme.xaml file of the toolkit