诸位大侠，这样子代码为什么在textbox输入数值后，datagridview中没选中相应的行数据，没反应？

各位大侠，这样子代码为什么在textbox输入数值后，datagridview中没选中相应的行数据，没反应？？？？
各位大侠，这样子代码为什么在textbox输入数值后，datagridview中没选中相应的行数据，没反应？？？？

private void textBox4_TextChanged(object sender, EventArgs e)
  {
  foreach (DataGridViewRow each in dataGridView1.Rows)
  {
  if (textBox4.Text == this.dataGridView1.CurrentRow.Cells["序号"].Value.ToString())
  {
  this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;

  }
  }

  }

[解决办法]
给你整了个

C# code

 private void Form2_Load(object sender, EventArgs e)        {            DataTable dt = new DataTable();            dt.Columns.Add("aaa");            dt.Columns.Add("bbb");            dt.Rows.Add("0001","name1");            dt.Rows.Add("0002", "name1");            dt.Rows.Add("0003", "name1");            dt.Rows.Add("0004", "name1");            this.dataGridView1.DataSource = dt;            this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;            this.dataGridView1.MultiSelect = false;        }        private void textBox1_TextChanged(object sender, EventArgs e)        {            foreach (DataGridViewRow dr in this.dataGridView1.Rows)            {                if (dr.Cells[0].Value == null)                {                    continue;                }                if (dr.Cells[0].Value.ToString() == this.textBox1.Text)                {                                        dr.Selected = true;                    break;                }            }        }
[解决办法]
探讨


给你整了个
C# code

 private void Form2_Load(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("aaa");
            dt.Columns.Add("bbb");
     ……