wp7超大文本显示控件垂直滚动

wp7中textblock显示有文本数量限制。貌似超过2048个字符就不显示了。

从国外网站找了一个控件，实现加载大量文本显示，并且垂直滚动浏览。

实现原理其实挺简单的，就是动态创建多个textblock控件，每个控件显示部分内容。

有点，加载大量文本时，垂直方向滚动浏览，用户体验度较高（个人感觉比一页页翻页舒服多了）

缺点，由于加载了多个控件，所以加载速度慢（与文本长度有关），这也许时微软限制显示数量的原因。

上代码：

[csharp]
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.IO;
using System.Text;

namespace wwb.Phone.Ctrls
{
    public class ScrollableTextBlock : Control
    {
        private StackPanel stackPanel;
        private TextBlock measureBlock;

        public ScrollableTextBlock()
        {
            // Get the style from generic.xaml
            this.DefaultStyleKey = typeof(ScrollableTextBlock);
        }

        public static readonly DependencyProperty TextProperty =
            DependencyProperty.Register(
                "Text",
                typeof(string),
                typeof(ScrollableTextBlock),
                new PropertyMetadata("ScrollableTextBlock", OnTextPropertyChanged));

        public string Text
        {
            get
            {
                return (string)GetValue(TextProperty);
            }
            set
            {
                SetValue(TextProperty, value);
            }
        }

        private static void OnTextPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            ScrollableTextBlock source = (ScrollableTextBlock)d;
            string value = (string)e.NewValue;
            source.ParseText(value);
        }

        public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();
            this.stackPanel = this.GetTemplateChild("StackPanel") as StackPanel;
            this.ParseText(this.Text);
        }

        private void ParseTextHide(string value)
        {
            if (this.stackPanel == null)
            {
                return;
            }
            // Clear previous TextBlocks
            this.stackPanel.Children.Clear();
            // Calculate max char count
            int maxTexCount = this.GetMaxTextSize();

            if (value.Length < maxTexCount)
            {
                TextBlock textBlock = this.GetTextBlock();
                textBlock.Text = value;
                this.stackPanel.Children.Add(textBlock);
            }
            else
            {
                int n = value.Length / maxTexCount;
                int start = 0;

                // Add textblocks
                for (int i = 0; i < n; i++)
                {
                    TextBlock textBlock = this.GetTextBlock();
                    textBlock.Text = value.Substring(start, maxTexCount);
                    this.stackPanel.Children.Add(textBlock);
                    start = maxTexCount;
                }

    &nb

补充：移动开发 , Windows Phone ,

wp7超大文本显示控件 垂直滚动

wp7超大文本显示控件垂直滚动