string sql = "select *from book where 编号='" + textBox1.Text+ "'";
this.sqlConnection1.Open();
DataTable dt = new DataTable();
this.sqlDataAdapter1 = new SqlDataAdapter(sql, this.sqlConnection1);
this.sqlDataAdapter1.Fill(dt);
dataGridView1.DataSource = dt;
this.sqlConnection1.Close();
看看这个例子吧
this.sqlConnection1.Open();
DataTable dt = new DataTable();
this.sqlDataAdapter1 = new SqlDataAdapter(sql, this.sqlConnection1);
this.sqlDataAdapter1.Fill(dt);
dataGridView1.DataSource = dt;
this.sqlConnection1.Close();
看看这个例子吧
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谢谢指点，但还是不行，在nameTextBox中输入查询的名字后，点查询按纽，但dategridview一点反映都没.