public Form1() { InitializeComponent(); orderDetailsBindingSource.DataSource = os.GetAllOrders(); //绑定查询条件 textBox1.DataBindings.Add("Text", this, "KeyWord1"); textBox2.DataBindings.Add("Text", this, "KeyWord2"); textBox3.DataBindings.Add("Text", this, "KeyWord3"); textBox4.DataBindings.Add("Text", this, "KeyWord4"); }