在ListBox中使用RichTextBox，如何实现RichTextBox绑定数据
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最佳答案
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要结贴了，我最后的解决方案是重写了RichTextBox，代码如下：
public class RichTextBlock : System.Windows.Controls.RichTextBox { public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(RichTextBlock), new PropertyMetadata(OnBlockTextChanged));
private string[] FaceName = { "[发红包]", "[兔子]", "[熊猫]", "[给力]" };
public string Text { get { return (string)GetValue(TextProperty); } set { SetValue(TextProperty, value); SetLinkedText(value); } }
static void OnBlockTextChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) { if (obj != null && obj is RichTextBlock) { //(obj as RichTextBlock).SetLinkedText((string)e.NewValue); (obj as RichTextBlock).SetFaceText((string)e.NewValue); } }
public void SetLinkedText(string htmlFragment) { var regEx = new Regex( @"\<a\s(href\=""|[^\>]+?\shref\="")(?<link>[^""]+)"".*?\>(?<text>.*?)(\<\/a\>|$)", RegexOptions.IgnoreCase | RegexOptions.Multiline);
this.Blocks.Clear();
int nextOffset = 0;
foreach (Match match in regEx.Matches(htmlFragment)) { if (match.Index > nextOffset) { this.AppendText(htmlFragment.Substring(nextOffset, match.Index - nextOffset)); nextOffset = match.Index + match.Length; this.AppendLink(match.Groups["text"].Value, new Uri(match.Groups["link"].Value)); }
}
if (nextOffset < htmlFragment.Length) { this.AppendText(htmlFragment.Substring(nextOffset)); } }
public void SetFaceText(string faceText) { //ObservableCollection<FaceItem> faceItemList = new ObservableCollection<FaceItem>(); //FaceItem item1 = new FaceItem { FaceName = "[disdain]", FaceUri = "Emotions/[disdain].png" }; //FaceItem item2 = new FaceItem { FaceName = "[joyful]", FaceUri = "Emotions/[joyful].png" }; //faceItemList.Add(item1); //faceItemList.Add(item2); //this.FaceList.ItemsSource = faceItemList;
char[] abcs = faceText.ToCharArray(); //将需要转换的内容转换成char数组，便于我们进行筛选操作，例如：“大家好，hello，希望大家喜欢[disdain]，开心哦[joyful]哈哈哈！” string strs = ""; //文字（非"[]"类型的文字） 例如：“大家好，hello，希望大家喜欢” string strface = ""; //图片（"[]"类型的文字） 例如：“[disdain]” List<string> list = new List<string>(); //我们把文字和图片放入其中，最后我们通过遍历这个list来动态为richbox添加内容 for (int i = 0; i < abcs.Count(); i++) { if (abcs[i].ToString() != "[") { for (int j = 0; j < abcs.Count() - i; j++) { if (abcs[i + j].ToString() != "[") { strs = strs + abcs[i + j].ToString(); if (i + j == abcs.Count() - 1) { if (abcs[i + j].ToString() != "]") { i = i + j; break; } } } else { i = i + j - 1; break; }
} if (strs != "") { list.Add(strs); strs = ""; } } if (abcs[i].ToString() == "[") { for (int j = 0; j < abcs.Count() - i; j++) { if (abcs[i + j].ToString() != "]") { strface = strface + abcs[i + j].ToString();
} if (abcs[i + j].ToString() == "]") { strface = strface + abcs[i + j].ToString(); i = i + j; break; }
} //FaceItem itemnew = new FaceItem { FaceName = strface, FaceUri = "Emotions/" + strface + ".png" }; if (true) { list.Add(strface); strface = "";
} } }
//// 动态生成richbox内的内容 Paragraph ph = new Paragraph(); //放到for循环外面，因为只有一个段落就够了 this.Blocks.Add(ph); //放入到richbox中 for (int i = 0; i < list.Count(); i++) { if (list[i].ToString().StartsWith("[")) { // Run myRun= new Run(); InlineUIContainer iu = new InlineUIContainer(); Image im = new Image(); for (int j = 0; j < FaceName.Length; j++) { if (FaceName[j] == list[i].ToString()) { if (j < 10) { im.Source = new BitmapImage(new Uri("/Face/" + "a00"+(j+1) + ".png", UriKind.RelativeOrAbsolute)); Debug.WriteLine("/Face/" + "a00" + j + ".png"); } else if (j < 100) { im.Source = new BitmapImage(new Uri("/Face/" + "a0" + (j + 1) + ".png", UriKind.RelativeOrAbsolute)); Debug.WriteLine("/Face/" + "a0" + j + ".png"); } else { im.Source = new BitmapImage(new Uri("/Face/" + "a" + (j + 1) + ".png", UriKind.RelativeOrAbsolute)); Debug.WriteLine("/Face/" + "a" + j + ".png"); } } } im.Height = 40; iu.Child = im;
ph.Inlines.Add(iu); } else { Run myRun = new Run(); myRun.Text = list[i].ToString(); ph.Inlines.Add(myRun);
}
} }
public void AppendText(string text) { Paragraph paragraph;
if (this.Blocks.Count == 0 || (paragraph = this.Blocks[this.Blocks.Count - 1] as Paragraph) == null) { paragraph = new Paragraph(); this.Blocks.Add(paragraph); }
paragraph.Inlines.Add(new Run { Text = text }); }
public void AppendLink(string text, Uri uri) { Paragraph paragraph;
if (this.Blocks.Count == 0 || (paragraph = this.Blocks[this.Blocks.Count - 1] as Paragraph) == null) { paragraph = new Paragraph(); this.Blocks.Add(paragraph); }
var run = new Run { Text = text }; var link = new Hyperlink { NavigateUri = uri };
link.Inlines.Add(run); paragraph.Inlines.Add(link); } }
其他回答(2)
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RichTextBox.Text不能赋值？？
大哥，RichTextBox根本就没有.text属性的好不好啊
@御风不败: 你把我吓尿了，RichTextBox没有Text属性？？ 吓的我刚打开VS 建个项目来测试！ 你是winform还是什么？
@御风不败: 兄弟，我也在线给你回答问题呢。。求速度问。 我都刷新好多次了
@康忠鑫-Stephen: Windows Phone项目
@康忠鑫-Stephen: 不管组后能不能解决问题，还是要先谢谢您了
@御风不败: WP 不懂，不客气
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xaml code:
<ListBox Margin="0,0,-12,0" Name="userDrops"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel Margin="0,0,0,17" Width="432"> <RichTextBox> <Paragraph> <Run Text="{Binding Body}" FontSize="25" FontFamily="Segoe WP"></Run> </Paragraph> <Paragraph> <Run Text="{Binding Created}" FontFamily="Segoe WP SemiLight"></Run> </Paragraph> </RichTextBox> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox>
c# code:
var data = from query in loadedData.Descendants("item") select new droppedItem { Id = (int)query.Element("id"), Body = (string)query.Element("body"), Created = (DateTime)ConvertFromUnixTimestamp((double)query.Element("created")) }; userDrops.ItemsSource = data;
你要是有复杂类型的，就需要写一个在自己的转换器了，可以参考这个：
http://stackoverflow.com/questions/10135984/windows-phone-7-dynamic-listbox-template
收获园豆：100
我想说的是，我用RichTextBox是为了能够实现表情和文本混排的那种效果，这个恐怕解决不了我的问题，不过还是要谢谢你了，在昨天晚上我已经解决了！！！
