Windows Forms中的数据传递

近日在做windows Forms程序中，发现以前用来传递数据的方法一直不是很适当，经过研究，发现在被调用的Forms里边加入私有成员，然后构造一个带参数的构造函数，可以很方便的将主窗体中的数据传送过来，尤其对于数据库方面的编程,通过定义数据访问层对象或者datarow对象,能更方便的对数据进行RUID操作,效果不错。

Form1的代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace DatasetTest
{
    public partial class Form1 : Form
    {
        //public tdsCustomersTableAdapters.CustomersTableAdapter  dsc;
        //tdsCustomers.CustomersDataTable tdc;
        private TestDataAccess td = new TestDataAccess();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //dsc =new DatasetTest.tdsCustomersTableAdapters.CustomersTableAdapter();

            //tdc = dsc.GetData();
            //dataGridView1.DataSource = tdc;

            //using (TestDataAccess tda = new TestDataAccess())
            //{
            //    dataGridView1.DataSource = tda.RetiereCustmoers();
            //}
            dataGridView1.DataSource = td.RetiereCustmoers();
            
        }

        private void button1_Click(object sender, EventArgs e)
        {
           
            //DataRow dr = tdc.Rows[dataGridView1.SelectedRows[0].Index];

      
            //Form2 fm = new Form2();
            //fm.dr2 = dr;
            //if (DialogResult.OK == fm.ShowDialog())
            //{
            //    dr = fm.dr2;
            //    dsc.Update(dr);
            //    dataGridView1.DataSource = dsc.GetData();
            //}
            //MessageBox.Show(
            //    dataGridView1.Rows[2].Cells[0].ToString());
            int rowindex = dataGridView1.CurrentRow.Index;
            int taskIDColumnIndex = dataGridView1.Columns["CustomerId"].Index;
            //string xinxi = rowindex.ToString();
            //xinxi = xinxi + "  其中" + dataGridView1[taskIDColumnIndex, rowindex].Value.ToString();
            //MessageBox.Show(xinxi);
            string customersid = dataGridView1[taskIDColumnIndex, rowindex].Value.ToString();
            dsNorthwind.CustomersRow dcr = td.RetiereCustomersRow(customersid);
            //MessageBox.Show(dcr.CustomerID+dcr.CompanyName);
            Form2 fm2 = new Form2(td,dcr);
            if (DialogResult.OK == fm2.ShowDialog())
            {
                td.UpdateCustomers(dcr);
            }
            dataGridView1.DataSource = td.RetiereCustmoers();

        }

        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }

        private void dataGridView1_DoubleClick(object sender, EventArgs e)
        {

            //DataRow dr = tdc.Rows[dataGridView1.SelectedRows[0].Index];


            //Form2 fm = new Form2();
            //fm.dr2 = dr;
            //if (DialogResult.OK == fm.ShowDialog())
            //{
            //    dr = fm.dr2;
            //    dsc.Update(dr);
            //    dataGridView1.DataSource = dsc.GetData();
            //}
        }

        private void button2_Click(object sender, EventArgs e)
        {
            //dsc.DeleteByCustomerId(tdc.Rows[dataGridView1.SelectedRows[0].Index][0].ToString());
            //dataGridView1.DataSource = dsc.GetData();
            //DataRow drinsert =tdc.NewRow();
            //drinsert[0] = "test";
            //drinsert[1] = "test1";
            //dsc.Update(drinsert);
            //tdsCustomers.CustomersRow tcr = tdc.NewCustomersRow();
            //tcr.CustomerID = "test";
            //tcr.CompanyName = "testonce";
            //tdc.Rows.Add(tcr);
            //dsc.Update(tcr);
            //dataGridView1.DataSource = dsc.GetData();
            


            
        }
    }

}

Form2的代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace DatasetTest
{
    public partial class Form2 : Form
    {
        private TestDataAccess td;
        private dsNorthwind.CustomersRow dcr;
        //public DataRow dr2;
        public Form2()
        {
            InitializeComponent();
        }
        public Form2(TestDataAccess td1, dsNorthwind.CustomersRow dcr1)
        {
            InitializeComponent();
            td = td1;
            dcr = dcr1;
        }
      
        private void Form2_Load(object sender, EventArgs e)
        {
            //textBox1.Text = dr2[0].ToString();
            //textBox2.Text = dr2[1].ToString();
            textBox1.Text = dcr.CustomerID;
            textBox2.Text = dcr.CompanyName;

        }

        private void button1_Click(object sender, EventArgs e)
        {
            //dr2[1] = textBox2.Text;
            dcr.CompanyName = textBox2.Text;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
            DialogResult = DialogResult.Cancel;
        }

    }
}