如何在文本框中逐行查找每个单击中的特定单词 [英] how to find a specific word in each click line by line in text box

问题描述

我有两个文本框，一个是"txtshowfile"的多行文本框，另一个是"txtsearch".假设在txtshowfile中一行一行写着10个句子，现在我在txtsearch框中写了一个单词，然后单击按钮事件事件，所以我想输入
txtshow文件(如果找到该单词)则突出显示特定单词，如果在一行中找到一个或多个单词，则突出显示所有单词.
请帮帮我.

Hi i have a two text box one is multi line text box as "txtshowfile" and another text box is "txtsearch". Suppose In txtshowfile there are 10 sentences written in line by line now i wrote a word in txtsearch box and click a button event event so i want in
txtshow file if the word is found then specific word is highlighted and if in a line one or more words are found then all are highlighted.
Please help me out.

Thanks in Advance.

推荐答案

如果您像FCKD编辑器那样使用任何编辑器，则您可以获得这种功能/
或者，如果您想突出显示Lebel文字，也可以

..我不知道文本框具有这种功能

If you take any editor as like FCKD editor then u can get that kind of feature/
or if u want to highligh on the Lebel text then also possible

..i dont know text box has such kind of feature

string search = txtsearchgerman.Text;
                if (i > 0)
                {
                    gerendindex = gerendindex + rtbgermanfile.Lines[k].Length + 1;
                }
                while (m != -1)
                {
                    m = rtbgermanfile.Lines[i].IndexOf(search, m);
                    if (m != -1)
                    {
                        if (i == 0)
                        {
                            rtbgermanfile.SelectionStart = m;
                            rtbgermanfile.SelectionLength = search.Length;
                            rtbgermanfile.SelectionColor = Color.Red;
                            m = m + search.Length;
                            flag1++;
                        }
                        else
                        {
                            rtbgermanfile.SelectionStart = m + gerendindex;
                            rtbgermanfile.SelectionLength = search.Length;
                            rtbgermanfile.SelectionColor = Color.Red;
                            m = m + search.Length;
                            flag1++;
                        }
                    }
                }

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