c# – Windows Phone 7中的网格

发布时间：2020-12-16 01:45:55 所属栏目：百科来源：网络整理

导读：我有一个网格视图代码,下面分为3列. 但我的代码有问题. 检索多个数据时. 3列中的所有数据都是重叠的. 如何修改下面的代码,例如它将在它下面一个接一个地显示. //Define grid column,size Grid schedule = new Grid(); foreach (var time in timeSplit) { tim

我有一个网格视图代码,下面分为3列.
但我的代码有问题.
检索多个数据时.
3列中的所有数据都是重叠的.
如何修改下面的代码,例如它将在它下面一个接一个地显示.

//Define grid column,size

            Grid schedule = new Grid();

            foreach (var time in timeSplit)
            {
                timeList = time;
                //Column 1 to hold the time of the schedule
                ColumnDefinition scheduleTimeColumn = new ColumnDefinition();
                GridLength timeGrid = new GridLength(110);
                scheduleTimeColumn.Width = timeGrid;
                schedule.ColumnDefinitions.Add(scheduleTimeColumn);

                //Text block that show the time of the schedule
                TextBlock timeTxtBlock = new TextBlock();
                timeTxtBlock.Text = time;
                //Set the alarm label text block properties - margin,fontsize
                timeTxtBlock.FontSize = 28;
                timeTxtBlock.Margin = new Thickness(0,20,0);
                //Set the column that will hold the time of the schedule
                Grid.SetColumn(timeTxtBlock,0);

                schedule.Children.Add(timeTxtBlock);
            }

            foreach (var title in titleSplit)
            {
                titleList = title;

                //Column 2 to hold the title of the schedule
                ColumnDefinition scheduleTitleColumn = new ColumnDefinition();
                GridLength titleGrid = new GridLength(500);
                scheduleTitleColumn.Width = titleGrid;
                schedule.ColumnDefinitions.Add(scheduleTitleColumn);

                //Text block that show the title of the schedule
                TextBlock titleTxtBlock = new TextBlock();

                if (title.Length > 10)
                {
                    string strTitle = title.Substring(0,10) + "....";
                    titleTxtBlock.Text = strTitle;
                }
                else
                {
                    titleTxtBlock.Text = title;
                }

                //Set the alarm label text block properties - margin,fontsize
                titleTxtBlock.FontSize = 28;
                titleTxtBlock.Margin = new Thickness(60,0);
                //Set the column that will hold the title of the schedule
                Grid.SetColumn(titleTxtBlock,1);

                schedule.Children.Add(titleTxtBlock);
                //scheduleListBox.Items.Add(schedule);
            }

            foreach (var category in categorySplit)
            {
                categoryList = category;

                //Column 3 to hold the image category of the schedule
                ColumnDefinition categoryImageColumn = new ColumnDefinition();
                GridLength catImgnGrid = new GridLength(70);
                categoryImageColumn.Width = catImgnGrid;
                schedule.ColumnDefinitions.Add(categoryImageColumn);

                TextBlock categoryTxtBlock = new TextBlock();
                categoryTxtBlock.Text = category;

                //set the category image and its properties - margin,width,height,name,background,font size
                Image categoryImage = new Image();
                categoryImage.Margin = new Thickness(-50,15,0);
                categoryImage.Width = 50;
                categoryImage.Height = 50;
                if (category == "Priority")
                {
                    categoryImage.Source = new BitmapImage(new Uri("/AlarmClock;component/Images/exclamination_mark.png",UriKind.Relative));
                }
                else
                    if (category == "Favourite")
                    {
                        categoryImage.Source = new BitmapImage(new Uri("/AlarmClock;component/Images/star_full.png",UriKind.Relative));
                    }


                Grid.SetColumn(categoryImage,2);
                schedule.Children.Add(categoryImage);
            }

            scheduleListBox.Items.Add(schedule);
        }

解决方法

Quickhorn的答案大多正确.问题是您要为列表中的每个项目创建一个大网格而不是一行.下面是代码的简化示例,它使用模型对象和数据绑定代替.

通过这种方式,您可以轻松地为xaml中的所有内容设置样式,并使事情变得更加简单.

代码背后：MainPage.xaml.cs

public partial class MainPage : PhoneApplicationPage
{
    private ObservableCollection<Schedule> _schedules;

    public MainPage()
    {
        InitializeComponent();

        string[] timeSplit = new string[] { "One1","Two2","Three3" };
        string[] titleSplit = new string[] { "Title1","Title2","Title3" };
        string[] categorySplit = new string[] { "Priority","Favourite","Another" };

        _schedules = new ObservableCollection<Schedule>();

        for ( int i = 0; i < timeSplit.Length; i++ )
        {
            _schedules.Add( CreateSchedule( timeSplit[i],titleSplit[i],categorySplit[i] ) );
        }

        scheduleListBox.ItemsSource = _schedules;
    }

    private Schedule CreateSchedule( string time,string title,string category )
    {
        Schedule schedule = new Schedule
        {
            Time = time,Title = title,Category = category
        };

        if ( category == "Priority" )
        {
            schedule.ImageSource = "/AlarmClock;component/Images/exclamination_mark.png";
        }
        else if ( category == "Favourite" )
        {
            schedule.ImageSource = "/AlarmClock;component/Images/star_full.png";
        }

        return schedule;
    }
}

public class Schedule
{
    public string Time { get; set; }
    public string Title { get; set; }
    public string Category { get; set; }
    public string ImageSource { get; set; }
}

MainPage.xaml中

<ListBox
    x:Name="scheduleListBox">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto" />
                    <ColumnDefinition Width="Auto" />
                    <ColumnDefinition Width="Auto" />
                </Grid.ColumnDefinitions>
                <TextBlock
                    Text="{Binding Time}"/>
                <TextBlock
                    Text="{Binding Title}"
                    Grid.Column="1"/>
                <StackPanel
                    Orientation="Horizontal"
                    Grid.Column="2">
                    <TextBlock
                        Text="{Binding Category}"/>
                    <Image
                        Source="{Binding ImageSource}"/>
                </StackPanel>
            </Grid>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

（编辑：李大同）

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