如何使用winform C＃编程来查找和替换段落中的单词 [英] How to find and replace the word in a paragraph through programming using winform C#

问题描述

我有一个RichtextBox。它持有一句话，即亲爱的家长，你的病房今天还没来学校。



一个Gridview控件也可用于相同的形式，它包含3个列，即SrNo。，Student'sName&消息。



现在我想用句子中的双美元替换Student'sName。



我的Gridview就像

================================== =========

SrNo。 Student'sName消息

====================================== =====

1-姓名-1空白

2-姓名 - 2空白

3-姓名-3无空
=============================================



更换后应该显示如下
=================== ================================================== ===============

Sr.No. Student'sName消息

====================================== ==============================================

1-姓名-1亲爱的家长，你的病房名字-1今天​​还没来学校。

2-姓名-2亲爱的家长，你的病房名字-2还没来学校今天。

3-姓名-3亲爱的家长，你的病房名字-3今天还没来学校。

============ ================================================== ======================



请给我打电话。



谢谢



我的尝试：



........................................

I have one RichtextBox. It is holding a sentence i.e. Dear Parents, Your ward $$ has not come to school today.

One Gridview control is also available on the same form and it is containing 3 Columns which is SrNo., Student'sName & Message.

Now I want to replace the Student'sName with double dollar where it is presenting in the sentence.

My Gridview is like
===========================================
SrNo. Student'sName Message
===========================================
1- Name-1 Null
2- Name-2 Null
3- Name-3 Null
=============================================

After replacement it should show lik e
====================================================================================
Sr.No. Student'sName Message
====================================================================================
1- Name-1 Dear Parents, Your ward Name-1 has not come to school today.
2- Name-2 Dear Parents, Your ward Name-2 has not come to school today.
3- Name-3 Dear Parents, Your ward Name-3 has not come to school today.
====================================================================================

Please helm me.

Thanks

What I have tried:

........................................

推荐答案

今天还没来学校。



一个Gridview控件也可以在同一个表单上使用它是包含3个列，即SrNo。，Student'sName&消息。



现在我想用句子中的双美元替换Student'sName。



我的Gridview就像

================================== =========

SrNo。 Student'sName消息

====================================== =====

1-姓名-1空白

2-姓名 - 2空白

3-姓名-3无空
=============================================



更换后应该显示如下
=================== ================================================== ===============

Sr.No. Student'sName消息

====================================== ==============================================

1-姓名-1亲爱的家长，你的病房名字-1今天​​还没来学校。

2-姓名-2亲爱的家长，你的病房名字-2还没来学校今天。

3-姓名-3亲爱的家长，你的病房名字-3今天还没来学校。

============ ================================================== ======================



请给我打电话。



谢谢



我的尝试：



........................................

has not come to school today.

One Gridview control is also available on the same form and it is containing 3 Columns which is SrNo., Student'sName & Message.

Now I want to replace the Student'sName with double dollar where it is presenting in the sentence.

My Gridview is like
===========================================
SrNo. Student'sName Message
===========================================
1- Name-1 Null
2- Name-2 Null
3- Name-3 Null
=============================================

After replacement it should show lik e
====================================================================================
Sr.No. Student'sName Message
====================================================================================
1- Name-1 Dear Parents, Your ward Name-1 has not come to school today.
2- Name-2 Dear Parents, Your ward Name-2 has not come to school today.
3- Name-3 Dear Parents, Your ward Name-3 has not come to school today.
====================================================================================

Please helm me.

Thanks

What I have tried:

........................................

试试这个

try this

private void button1_Click(object sender, EventArgs e)
      {
          string text = richTextBox1.Text; //"Dear Parents, Your ward

今天还没来学校。 ;
foreach （DataGridViewRow row in dataGridView1.Rows）
{
string name = Convert.ToString（row.Cells [ 1 ]。Value） ;
if （！string.IsNullOrWhiteSpace（name））
row.Cells [ 2 ]。Value = text.Replace（

has not come to school today."; foreach (DataGridViewRow row in dataGridView1.Rows) { string name = Convert.ToString(row.Cells[1].Value); if (!string.IsNullOrWhiteSpace(name)) row.Cells[2].Value = text.Replace("

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