如何从文本文件或文本框中查找特定单词 [英] how to find a particular word from text file or text box

问题描述

我有两个文本框.在第一个文本框中，假设我写了一个句子我的名字是Mayank"，现在我想从第一个文本框中输入一个单词mayank，所以我在第二个文本框中编写了mayank，而不是单击查找"按钮.
我使用了该代码，但命名空间不起作用

Hi ,I have two text boxes.In first text box suppose i write a sentence "My name is Mayank" now i want a word mayank from first text box so i write mayank in second text box than click to Find button.
i used that code but namespace doesn''t work

//namespace DisplayWordJaNein

代码是-

and code is-

string txtfilesentence;
            string word;
            txtfilesentence = txtshowfile.Text;
            word = txtwordmatch.Text;

            if (string.Equals(txtfilesentence, word))
            {
                lblfound.Text = "word matched";
            }
            else
            {
                lblnotfound.Text = "word not matched";
            }

或如何使用另一个命名空间?

or how to use another namespace ?

推荐答案

将代码更改为此.

Change your code to this .. It will work

string txtfilesentence=string.Empty;
        string word=string.Empty;
        txtfilesentence = txtshowfile.Text.Trim();
        word = txtwordmatch.Text.Trim();
        if (txtfilesentence.Contains(word))
        {
            lblfound.Text = "word matched";
        }
        else
        {
            lblnotfound.Text = "word not matched";
        }

编辑

Edited

function findit(byRef TheText) as integer
dim i as integer
i=instr(RichTextBox1.text, TheText)
return i
end function

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