richtextbox中每个单词的额外信息richtextbox和sql表之间的链接

Question

我有一个richtextbox，它的文本是来自特定表的某些单词的串联。 （表格列是“单词”，“翻译”和“ID”）

我需要当用户将鼠标悬停在每个单词上时，相关翻译会显示在单词的工具提示中。 （类似谷歌翻译，但在Windows窗体应用程序。）

有人可以指向我的解决方案吗？

Answer 1

使用Web浏览器控制和注入JavaScript解决了我的问题。 ;）

Answer 2

这将这样的伎俩......

private void richTextBox1_MouseMove(object sender, MouseEventArgs e) 
{ 
    // whitespace definition 
    char[] whitespace = new char[] { ' ', '\r', '\n', '\t' }; 

    int charPosition = this.richTextBox1.GetCharIndexFromPosition(e.Location); 

    string fullText = this.richTextBox1.Text; 

    // if we are on whitespace, exit 
    if (whitespace.Contains(fullText[charPosition])) 
    { 
     return; 
    } 

    // find a whitespace towards the start of the text 
    int firstWhiteSpace = charPosition; 
    while (firstWhiteSpace > 0 
     && firstWhiteSpace < fullText.Length 
     && !whitespace.Contains(fullText[firstWhiteSpace])) 
    { 
     firstWhiteSpace--; 
    } 
    if (firstWhiteSpace!=0) 
     firstWhiteSpace++; 
    // find the next whitespace 
    int lastWhiteSpace = fullText.IndexOfAny(whitespace, charPosition); 
    if (lastWhiteSpace == -1) 
     lastWhiteSpace = fullText.Length; 

    // substring the word out of the flat text 
    string word = fullText.Substring(
     firstWhiteSpace, 
     lastWhiteSpace - firstWhiteSpace); 

    // show the result 
    label1.Text = String.Format("pos:{0} fsp:{1}, lsp:{2}, len:{3}, word:{4}", 
     charPosition, 
     firstWhiteSpace, 
     lastWhiteSpace, 
     fullText.Length, word); 

} 

Answer 3

我不是精通C＃，我也是品牌新来这个论坛。然而，在我看来，如果你要补充代码rene发布一个函数，查询你的翻译表并返回翻译文本，你会有这个（原谅我的伪代码屠杀 - 我很流利的vb。净，会很快学会了C＃语法）：

Private String TranslatedWord(ByVal SelectedWord String) 
    { 
     //Use ADO and SQL to retrieve the Translation(s) associated with the submitted Word 

     // A string SQL Statement (the GROUP ON is in case there are multiple instances of the same word, with different translations (synonyms). THis SQL Should return a a single record for each possible translation of the submitted word (more than one result possible): 
      Dim SQL as String = _ 
      "SELECT tr.ID, tr.Translate " & _ 
      "FROM MyTranslationTable AS tr " & _ 
      "WHERE tr.Word LIKE @Word" 

     //Since I could be ALL DAY struggling to write the C# code for this, I will just step through it in "pseudocode": 
     // 1. Execute the SQL using ADO.Net, set up the @Word Param in your command, and return a sqlDataReader 
     // 2. Iterate through the returned records, and append the Translation results to a System.Text.Stringbuilder object. Delimit each returned value with a semi-colon (or your delimiter of choice). 
     // Return the Stringbuilder.ToString property as the result of this function; 

}

然后改变刘若英的代码的最后部分（“//显示结果”）如下（我可怕的C＃问题适用修正！ ）：

 private void richTextBox1_MouseMove(object sender, MouseEventArgs e)           
    {            
     // whitespace definition            
     char[] whitespace = new char[] { ' ', '\r', '\n', '\t' };                      
     int charPosition = this.richTextBox1.GetCharIndexFromPosition(e.Location);                      
     string fullText = this.richTextBox1.Text; 

     // if we are on whitespace, exit            
     if (whitespace.Contains(fullText[charPosition]))            
     {             
      return;            
     }                      
     // find a whitespace towards the start of the text            
     int firstWhiteSpace = charPosition;            
     while (firstWhiteSpace > 0             
      && firstWhiteSpace < fullText.Length             
      && !whitespace.Contains(fullText[firstWhiteSpace]))            
      {             
      firstWhiteSpace--;            
     }            
     if (firstWhiteSpace!=0)             
      firstWhiteSpace++; 

     // find the next whitespace            
     int lastWhiteSpace = fullText.IndexOfAny(whitespace, charPosition);            
     if (lastWhiteSpace == -1)             
      lastWhiteSpace = fullText.Length; 

     // substring the word out of the flat text            
     string word = fullText.Substring(             
      firstWhiteSpace,             
      lastWhiteSpace - firstWhiteSpace); 

     // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
     //My CHanges start here, and will likely require 
     // some tweaking . . . 

     //Use the function I have poorly described above to retreive the 
     //translation(s) for the current Word: 
     string TRANSLATION = TranslatedWord(word);               

     // show the result  
     //Since there are so many minor but important differences between C# and VB, I am not going to attempt 
     //to account for them. Essentially, display the translated word instead of the word over which the mouse is hovering:     
     label1.Text = String.Format("pos:{0} fsp:{1}, lsp:{2}, len:{3}, word:{4}",             
      charPosition,             
      firstWhiteSpace,             
      lastWhiteSpace,             
      fullText.Length, TRANSLATION);  

    } 

如果它会有帮助，我可以破坏vb.net代码很快，但我不打算这样做，除非它会有所帮助。

希望有帮助。我将不得不在学习C＃时进行一些工作，并提高我对在此论坛发帖的理解！让代码看起来正确是一个挑战。 。 。