如何在notepad ++中执行类似find函数的操作？ [英] How do I do something like the find function in notepad++?

问题描述

我想在notepad ++中添加一个像find all这样的函数，它会打开一个新窗口，显示突出显示的单词的行号和单词本身。我得到了这个代码，但它只显示在1个句子中，它不会像在记事本++中那样迭代。



我尝试了什么：

 private void button3_Click（object sender，EventArgs e）
 {
 Form2 form2 = new Form2（）; 
 form2.Show（）; 
 form2.textBox11.Text =; 
 string search = textBox1.Text; 
 int index = 0; 
 System.Collections.ArrayList line = new System.Collections.ArrayList（）; 
 do 
 {
 index = richTextBox1.Find（search，index + 1，RichTextBoxFinds.MatchCase）; 
 if（index！= -1）
 {
 line.Add（richTextBox1.GetLineFromCharIndex（index））; 
} 
} 
 while（（index！= -1））; 
 {
 System.Collections.IEnumerator myenum = line.GetEnumerator（）; 
 if（line.Count< = 0）
 {
 form2.label11.Text = search +未找到; 
} 
其他
 {
 form2.textBox11.SelectedText = search +在行上找到：; 
 while（myenum.MoveNext（））
 {
 form2.textBox11.SelectedText = myenum.Current +; 
} 
} 
} 
 
} 
 

解决方案

< blockquote>您必须将行号附加到 form2.textBox11 。您实际上是在设置选择，以便它最终只包含最后的结果：

  //   form2.textBox11.SelectedText = search +在行上找到：;  
 form2.textBox11.Text = search +  ：; 
  while （myenum.MoveNext（））
 {
  //   form2.textBox11.SelectedText = myenum.Current +;  
 form2.textBox11.Text + = myenum.Current +  ; 
} 

对于初学者，请停止使用ArrayList - 它已被V2.0 of .NET中的Generic集合取代。它;对于遗留应用程序来说没问题，但是新项目应该使用像List< T>这样的通用集合。相反。

其次，停止使用枚举器，并使用 foreach 循环。

三，不要构建字符串 - 特别是如果它们可以变大 - 使用appends，而是使用StringBuilder。

 StringBuilder message = new StringBuilder（）; 
 string search = textBox1.Text; 
 int index = 0; 
 List< int> lines = new List< int>（）; 
 do 
 {
 index = richTextBox1.Find（search，index + 1，RichTextBoxFinds.MatchCase）; 
 if（index！= -1）
 {
 lines.Add（richTextBox1.GetLineFromCharIndex（index））; 
} 
} 
 while（（index！= -1））; 
 if（lines.Count< = 0）
 {
 message.Append（找不到搜索+）; 
} 
其他
 {
 message.Append（在行上找到了搜索+：）; 
 string separator =; 
 foreach（行中的行）
 {
 message.AppendFormat（{0} {1}，separator，line）; 
 separator =，; 
} 
} 
 

然后显示结果：

 Form2 form2 = new Form2（）; 
 form2.textBox11.Text = message.ToString（）; 
 form2.Show（）; 
 

I want to add a function like find all in notepad++ in which it will open a new window that displays the line number of the highlighted word and the word itself. I got this code but it only display in 1 sentence it doesn't iterate like in notepad++.

What I have tried:

private void button3_Click(object sender, EventArgs e)
       {
           Form2 form2 = new Form2();
           form2.Show();
           form2.textBox11.Text = "";
           string search = textBox1.Text;
           int index = 0;
           System.Collections.ArrayList line = new System.Collections.ArrayList();
           do
           {
               index = richTextBox1.Find(search, index + 1, RichTextBoxFinds.MatchCase);
               if (index != -1)
               {
                   line.Add(richTextBox1.GetLineFromCharIndex(index));
               }
           }
           while ((index != -1));
           {
               System.Collections.IEnumerator myenum = line.GetEnumerator();
               if (line.Count<=0)
               {
                   form2.label11.Text = search+ "was not found";
               }
               else
               {
                   form2.textBox11.SelectedText = search + " was found on line(s): ";
                   while (myenum.MoveNext())
                   {
                       form2.textBox11.SelectedText = myenum.Current+ " ";
                   }
               }
           }

       }

解决方案

You must append the line numbers to your form2.textBox11. You are actually setting the selection so that it finally contains only the last result:

//form2.textBox11.SelectedText = search + " was found on line(s): ";
form2.textBox11.Text = search + " was found on line(s): ";
while (myenum.MoveNext())
{
    //form2.textBox11.SelectedText = myenum.Current+ " ";
    form2.textBox11.Text += myenum.Current+ " ";
}

For starters, stop using ArrayList - it was superseded by Generic collections in V2.0 of .NET. It;'s ok for legacy apps, but new projects should use Generic Collections like List<T> instead.
Second, stop faffing with Enumerators, and use a foreach loop.
Third, don't build strings - particularly if they can get big - with appends, use a StringBuilder instead.

StringBuilder message = new StringBuilder();
string search = textBox1.Text;
int index = 0;
List<int> lines = new List<int>();
do
    {
    index = richTextBox1.Find(search, index + 1, RichTextBoxFinds.MatchCase);
    if (index != -1)
        {
        lines.Add(richTextBox1.GetLineFromCharIndex(index));
        }
    }
while ((index != -1));
if (lines.Count <= 0)
    {
    message.Append(search + "was not found");
    }
else
    {
    message.Append(search + " was found on line(s): ");
    string separator = "";
    foreach (int line in lines)
        {
        message.AppendFormat("{0}{1}", separator, line);
        separator = ", ";
        }
    }

Then display the result:

Form2 form2 = new Form2();
form2.textBox11.Text = message.ToString();
form2.Show();

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