c# - C# - 在多个列中搜索

Question

两个问题：

1. 你将如何合并这两段代码？将它们分成两个大块似乎有点多余！

2. 您将如何通过多列进行搜索（如果在以下列中的任何一列中找到结果，则返回结果：姓名、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：

创建一个函数以获取您的搜索语句并在需要时调用它。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;
         }

回答你的第二个问题：

您可以编写如下过滤器：

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