Question

我想将项目添加到toolkit的toolpicker控件中。我这样做。

for (int i = 0; i < cstringl.Length; i++)
{
    listPickerCountrySignup.Items.Add(cstringl[i]);
}

这是我的XAML。

<toolkit:ListPicker x:Name="listPickerCountrySignup" SelectionChanged="listPickerCountry_SelectionChanged" Height="72" HorizontalAlignment="Left" Margin="14,43,0,0" VerticalAlignment="Top" Width="436" FullModeHeader="Select Country" Background="White" BorderBrush="White" Foreground="{StaticResource listPickerBrush}" Style="{StaticResource ListPickerStyle1}">
                        <toolkit:ListPicker.ItemTemplate>
                            <DataTemplate>
                                <StackPanel Orientation="Horizontal">
                                    <TextBlock Text="{Binding Country}" Width="300" />
                                </StackPanel>
                            </DataTemplate>
                        </toolkit:ListPicker.ItemTemplate>
                        <toolkit:ListPicker.FullModeItemTemplate>
                            <DataTemplate>
                                <StackPanel Orientation="Horizontal">
                                    <TextBlock Text="{Binding Country}" Width="300" Margin="0,0,0,20" FontSize="24"/>
                                </StackPanel>
                            </DataTemplate>
                        </toolkit:ListPicker.FullModeItemTemplate>
                    </toolkit:ListPicker>

但它没有在UI中显示，因为我在XAML中绑定了但是我从循环后面的代码中添加了项目。没有项目源绑定。我如何在该列表中显示项目..

Answer 1

你必须做一些数据绑定。

ObservableCollection<T> ListPickerItems = new ObservableCollection<T>();
for (int i = 0; i < cstringl.Length; i++)
{
    ListPickerItems .Add(cstringl[i]);
}

在Xaml中

：

<toolkit:ListPicker ItemsSource={Binding ListPickerItems} ... />

通过循环将项添加到listpicker

1 个答案: