Question

我是开发新手，我正在尝试用C＃代码创建LongListSelector但没有成功。任何人都可以帮我创建这个。

我的XML代码是 -

        <phone:LongListSelector ItemRealized="LLS_ItemRealized" Name="longList" ItemsSource="{Binding supportedList}" IsGroupingEnabled="False" LayoutMode="List" HideEmptyGroups="True" Margin="30,0,26,0" >
            <phone:LongListSelector.ItemTemplate>
                <DataTemplate>
                    <Grid Background="Transparent">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="210"/>
                            <ColumnDefinition Width="210"/>
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="120"/>
                        </Grid.RowDefinitions>
                        <Image Height="118" Width="209" Tap="ThumbnailImageTap" Margin="0" Stretch="Fill" Source="{Binding ThumbnailUrl1}" Tag="{Binding ClipId1}" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Left"/>
                        <Image Height="118" Width="209" Tap="ThumbnailImageTap" Margin="0" Stretch="Fill" Source="{Binding ThumbnailUrl2}" Tag="{Binding ClipId2}"  Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Right"/>
                    </Grid>
                </DataTemplate>
            </phone:LongListSelector.ItemTemplate>
        </phone:LongListSelector>

任何使用C＃创建此内容的建议都很棒或者与我的回答相关的任何链接。

谢谢：）

Answer 1

您可以通过在后面的代码中明确应用样式来实现此目的。首先使用预定义的键定义LongListSelector。

<phone:LongListSelector x:Key="listSelector" ItemRealized="LLS_ItemRealized" Name="longList" ItemsSource="{Binding supportedList}" IsGroupingEnabled="False" LayoutMode="List" HideEmptyGroups="True" Margin="30,0,26,0" >

                <phone:LongListSelector.ItemTemplate>
                    <DataTemplate>
                        <Grid Background="Transparent">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="210"/>
                                <ColumnDefinition Width="210"/>
                            </Grid.ColumnDefinitions>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="120"/>
                            </Grid.RowDefinitions>
                            <Image Height="118" Width="209" Tap="ThumbnailImageTap" Margin="0" Stretch="Fill" Source="{Binding ThumbnailUrl1}" Tag="{Binding ClipId1}" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Left"/>
                            <Image Height="118" Width="209" Tap="ThumbnailImageTap" Margin="0" Stretch="Fill" Source="{Binding ThumbnailUrl2}" Tag="{Binding ClipId2}"  Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Right"/>

                        </Grid>
                    </DataTemplate>
                </phone:LongListSelector.ItemTemplate>

            </phone:LongListSelector>

然后在后面的代码中获取样式并应用于新创建的LongListSelector。

var listSelector=new LongListSelector();
listSelector.Style=Resources["listSelector"] as Style;

Answer 2

你看过这个吗？

Windows Phone 8上“LongListSelector”的官方微软链接：

http://code.msdn.microsoft.com/wpapps/PeopleHub-Windows-Phone-80-88abe94d

来自wp7和wp8上的“CodeProject”的模板项目：

http://www.codeproject.com/Articles/92439/Silverlight-DataTemplateSelector

我希望这个帮助

Answer 3

自己绑定它。试试这个。

LongListSelector listSelector;

private void CreateLongListSelector()
{
    listSelector = new LongListSelector()
    {
        HideEmptyGroups=false,
        IsGroupingEnabled=false,
    };
    ContentPanel.Children.Add(listSelector);
    listSelector.ItemTemplate = GetDataTemplate();

}

public DataTemplate GetDataTemplate()
{
    string xaml = @"<DataTemplate xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation"">
                    <Grid Background=""Transparent"">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width=""210""/>
                            <ColumnDefinition Width=""210""/>
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height=""120""/>
                        </Grid.RowDefinitions>
                        <Image Height=""118"" Width=""209"" Tap=""ThumbnailImageTap"" Margin=""0"" Stretch=""Fill"" Source=""{Binding ThumbnailUrl1}"" Tag=""{Binding ClipId1}"" Grid.Column=""0"" VerticalAlignment=""Center"" HorizontalAlignment=""Left""/>
                        <Image Height=""118"" Width=""209"" Tap=""ThumbnailImageTap"" Margin=""0"" Stretch=""Fill"" Source=""{Binding ThumbnailUrl2}"" Tag=""{Binding ClipId2}""  Grid.Column=""1"" VerticalAlignment=""Center"" HorizontalAlignment=""Right""/>
                    </Grid>
                    </DataTemplate>";
    DataTemplate res=null;
    try
    {
        res = (DataTemplate)XamlReader.Load(xaml);
    }
    catch (Exception e)
    {
        MessageBox.Show(e.Message);
    }
    return res;
}

如何用c＃代码创建LongListSelector？

3 个答案: