Question

我正在尝试创建一个读取RSS源的应用程序，并以WPF格式显示它们。为了分隔帖子我使用网格并添加2个RowDefinitions（一个用于标题，一个用于主题）。

目前我被困住了。我想在我刚刚定义的行中添加一些Textblocks，但我不知道是怎么回事，因为他们没有名字。有没有人有想法？

我现在有什么：

        //defining Grid
        Grid post = new Grid();
        post.HorizontalAlignment = HorizontalAlignment.Left;
        post.VerticalAlignment = VerticalAlignment.Top;
        post.Margin = new Thickness(10);
        post.ShowGridLines = true;
        post.ColumnDefinitions.Add(new ColumnDefinition()
        {
            Width = new GridLength(500)
        });

        //loop trough all RSS feeds
        foreach (SyndicationItem item in feed.Items)
        {
            //add rows for title and Summary
            post.RowDefinitions.Add(new RowDefinition()
            {
                Height = new GridLength(50),

            });
            post.RowDefinitions.Add(new RowDefinition()
            {
                Height = new GridLength(50)
            });

            //Grid.SetRow(TitleTextblock, 0);
            //Grid.SetRow(SummaryTextblock, 1);

            //fills textblocks
            post.Children.Add(new TextBlock()
            {
                Text = item.Title.Text                  
            });
            post.Children.Add(new TextBlock()
            {
                Text = item.Summary.Text
            });
        }
        //show grid on window
        this.Content = post;

导致： this

Answer 1

你可以尝试

TextBlock textBlock = new TextBlock();
Grid.SetRow(textBlock, 0);
Grid.SetColumn(textBlock, 0);

希望这有助于你

Answer 2

好吧，正确设置Definitions似乎有问题：

//defining Grid
    Grid post = new Grid();
    post.HorizontalAlignment = HorizontalAlignment.Left;
    post.VerticalAlignment = VerticalAlignment.Top;
    post.Margin = new Thickness(10);
    post.ShowGridLines = true;
    post.ColumnDefinitions.Add(new ColumnDefinition()
    {
        Width = new GridLength(500)
    });

    //add local field to keep track of what row you're on
    int rowdeff = 0;

    //loop trough all RSS feeds
    foreach (SyndicationItem item in feed.Items)
    {
        //add rows for title and Summary
        post.RowDefinitions.Add(new RowDefinition()
        {
            Height = new GridLength(50),

        });
        post.RowDefinitions.Add(new RowDefinition()
        {
            Height = new GridLength(50)
        });

        //create the textblocks
        TextBlock TitleTextblock = new TextBlock;
        TextBlock SummaryTextblock = new TextBlock;

        //add content to textblocks
        TitleTextBlock.Text = item.Title.Text;
        SummaryTextblock.Text = item.Summary.Text;

        //set definitions
        Grid.SetColumn(TitleTextblock, 0);
        Grid.SetColumn(SummaryTextblock, 1);
        Grid.SetRow(TitleTextblock, rowdeff);
        Grid.SetRow(SummaryTextblock, rowdeff);

        //fills textblocks
        post.Children.Add(TitleTextBlock);
        post.Children.Add(SummaryTextblock);

        //add next row
        rowdeff++;
    }
    //show grid on window
    this.Content = post;

C＃ - 以编程方式将新的Textblock添加到Grid RowDefinition

2 个答案: