什么是排序RichTextBox的线最好的方法

问题描述

我在寻找排序的RichTextBox的线最好的方法，我用这个的时刻：

 公共无效SortLines（对象发件人，EventArgs的）
{
    TextPointer PSTART = TextInput.Document.ContentStart;
    TextPointer小彭= TextInput.Document.ContentEnd;
    TextRange的文本=新的TextRange（PSTART，小彭）;

    字符串[]行= text.Text.Split（'\ N'）;
    的Array.Sort（线）;
    text.Text =的string.join（的String.Empty，行）;
}
 

1. 有没有做到这一点的最好方法是什么？

2. 当我把它称为，将光标置于第一RichTextBox的线，我怎么把它放在它面前？我试图设置PSTART /小彭和CaretPositiom，但属性为只读。

我希望这是显而易见的。先谢谢了。

解决方案

据是涉及到分拣这个解决方案是不是与你不同建议，但我觉得它更优雅+它处理光标位置和放大器;选择：

 公共无效SortLines（对象发件人，EventArgs的）
{
       rtb.HideSelection = FALSE; //用于显示选择
        / *保存当前的选择* /
        字符串selectedText = rtb.SelectedText;
        / *保存CURR行* /
        INT firstCharInLineIndex = rtb.GetFirstCharIndexOfCurrentLine（）;
        INT currLineIndex = rtb.Text.Substring（0，firstCharInLineIndex）.Count之间（C =以及c =='\ N'）;
        字符串currLine = rtb.Lines [currLineIndex]
        INT偏移= rtb.SelectionStart -firstCharInLineIndex;


        / *排序* /
        字符串[]行= rtb.Lines;
        的Array.Sort（系，委托（串STR1，字符串STR2）{返回str1.CompareTo（STR2）;}）;
        rtb.Lines =行;

        如果（！String.IsNullOrEmpty（（selectedText）））
        {
            / *恢复选择* /
            INT newIndex = rtb.Text.IndexOf（selectedText）;
            rtb.Select（newIndex，selectedText.Length）;
        }
        其他
        {/ *恢复光标* /

            //当前行的位置
            INT lineIdx = Array.IndexOf（rtb.Lines，currLine）;
            INT textIndex = rtb.Text.IndexOf（currLine）;
            INT fullIndex = textIndex +偏移;
            rtb.SelectionStart = fullIndex;
            rtb.SelectionLength = 0;
        }
}
 

I'm looking for the best way to sort lines of RichTextBox, I'm using this at moment:

public void SortLines(object sender, EventArgs e)
{
    TextPointer pStart = TextInput.Document.ContentStart;
    TextPointer pEnd = TextInput.Document.ContentEnd;
    TextRange text = new TextRange(pStart, pEnd);

    string[] lines = text.Text.Split('\n');
    Array.Sort(lines);
    text.Text = String.Join(String.Empty, lines);
}

1. Is there an best way to do this?

2. When I call it, the cursor is placed into first RichTextBox line, how do I to put it where it was before?I tried to set pStart/pEnd and CaretPositiom, but the properties are read only.

I hope this is clear. Thanks in advance.

解决方案

As far is it comes to sorting this solution is not to different from you suggested one, but I find it more elegant + it handles cursor location & selection:

public void SortLines(object sender, EventArgs e)
{
       rtb.HideSelection = false; //for showing selection
        /*Saving current selection*/
        string selectedText = rtb.SelectedText;
        /*Saving curr line*/
        int firstCharInLineIndex = rtb.GetFirstCharIndexOfCurrentLine();
        int currLineIndex = rtb.Text.Substring(0, firstCharInLineIndex).Count(c => c == '\n');
        string currLine = rtb.Lines[currLineIndex];
        int offset = rtb.SelectionStart -firstCharInLineIndex;


        /*Sorting*/
        string[] lines = rtb.Lines;
        Array.Sort(lines, delegate(string str1, string str2) { return str1.CompareTo(str2); });
        rtb.Lines = lines;

        if (!String.IsNullOrEmpty((selectedText)))
        {
            /*restoring selection*/
            int newIndex = rtb.Text.IndexOf(selectedText);
            rtb.Select(newIndex, selectedText.Length);
        }
        else
        {   /*Restoring the cursor*/

            //location of the current line
            int lineIdx = Array.IndexOf(rtb.Lines, currLine);
            int textIndex = rtb.Text.IndexOf(currLine);
            int fullIndex = textIndex + offset;
            rtb.SelectionStart =  fullIndex;
            rtb.SelectionLength = 0;
        }
}

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