AUTOCOMPLETE SUGGESTIONS APPEARS ON TOP OF TEXT BO

问题:

I am using auto complete textbox from windows phone toolkit.I need the list of suggestions below my textbox but it shows up above the text box .How do I make the suggestions appear below the text box..Here is my XAML.

<Grid Margin="0,336,0,189" x:Name="editrow" Visibility="Visible">
                <Grid.RowDefinitions>
                    <RowDefinition Height="auto"></RowDefinition>
                    <RowDefinition Height="*"></RowDefinition>
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="220" ></ColumnDefinition>
                    <ColumnDefinition Width="100"></ColumnDefinition>
                    <ColumnDefinition Width="100"></ColumnDefinition>
                </Grid.ColumnDefinitions>
                <toolkit:AutoCompleteBox x:Name="newname" FilterMode="StartsWith"  IsTextCompletionEnabled="True" Foreground="White" Background="#53000000" BorderThickness="0" Grid.Column="0" Grid.Row="0" Margin="10,0,0,0" IsDropDownOpen="True" RenderTransformOrigin="0,0">
                    <toolkit:AutoCompleteBox.ItemTemplate>
                        <DataTemplate>
                            <StackPanel Background="Gray" Orientation="Horizontal">
                                <TextBlock Text="{Binding }"/>
                            </StackPanel>
                        </DataTemplate>
                    </toolkit:AutoCompleteBox.ItemTemplate>
                </toolkit:AutoCompleteBox>
                <TextBox x:Name="rowquantity" Foreground="White" Background="#53000000" BorderThickness="0" Grid.Column="1" Grid.Row="0" InputScope="Number"></TextBox>
                <toolkit:ListPicker Grid.Row="0" x:Name="units" Foreground="White" BorderThickness="0" Background="#53000000" Grid.Column="2" ExpansionMode="FullScreenOnly" Margin="12,5,0,14" >
                    <toolkit:ListPicker.FullModeItemTemplate>
                        <DataTemplate>
                            <StackPanel Orientation="Horizontal" Margin="0 0 0 0">

                                <TextBlock Text="{Binding}"
                                 FontSize="32" LineHeight="1"/>
                            </StackPanel>
                        </DataTemplate>
                    </toolkit:ListPicker.FullModeItemTemplate>
                </toolkit:ListPicker>
                <Button Content="Add" BorderBrush="#53000000" Foreground="#53000000" Grid.Column="1" Grid.ColumnSpan="2" Grid.Row="1" HorizontalAlignment="Right" VerticalAlignment="Top" Height="74" Click="Button_Click" Margin="0,0,3,0" Width="158"/>
            </Grid>

回答1:

The location of the popup is determined based on the available size. If there's more space above the AutoCompleteTextBox, it will pop up. You can see this in the popuphelper.cs source file where the code arranges the popup.

There really isn't an option to override the behavior.