C＃ - 搜索跨越多个列

Question

两个问题：

1. 你会如何合并代码的两位？似乎有点多余，让他们作为两个大块！

2. 你将如何去搜索多个列（并返回结果，如果它在以下任何列中找到：名称，性别，年龄）？

   private void button1_Click(object sender, EventArgs e) 
   { 
        BindingSource bs = new BindingSource(); 
        bs.DataSource = dataGridView1.DataSource; 
        bs.Filter = "id like '%" + textBox1.Text + "%'"; 
        dataGridView1.DataSource = bs; 
   } 
   
   private void textBox1_TextChanged(object sender, EventArgs e) 
   { 
        BindingSource bs = new BindingSource(); 
        bs.DataSource = dataGridView1.DataSource; 
        bs.Filter = "id like '%" + textBox1.Text + "%'"; 
        dataGridView1.DataSource = bs; 
   } 
   

Answer 1

回答你的第一个问题：

创建功能，让你的搜索语句，并调用它，只要你required.as如下：

 private void button1_Click(object sender, EventArgs e) 
     { 
      SearchData(); 
     } 

     private void textBox1_TextChanged(object sender, EventArgs e) 
     { 
      SearchData(); 
     } 
     private void SearchData() 
     { 
      BindingSource bs = new BindingSource(); 
      bs.DataSource = dataGridView1.DataSource; 
      bs.Filter = "id like '%" + textBox1.Text + "%'"; 
      dataGridView1.DataSource = bs; 
     } 

回答到你的第二个问题：

你可以写如下筛选：

bs.Filter = "id like '%" + textBox1.Text + "%' and name like '%" + textBox2.Text + "%'";