WinForm窗体之间传递参数

1.       UI设计
    主窗体FrmMain：
        两个文本框：textBox1、textBox2       存储FrmMain中的参数
        一个按钮：button1                    启动子窗体
    子窗体FrmChild：
        两个文本框：textBox1、textBox2       存储FrmChild中的参数
        一个按钮：button1                    关闭子窗体，返回FrmMain
  2.      DeliveryParamsArgs类：存储从子窗体FrmChild返回到父窗体FrmMain中的参数

using System;

using System.Collections.Generic;

using System.Text;

using System.Collections;



namespace DeliveryParam

{

    public class DeliveryParamsArgs : EventArgs

{

        //存储参数的各种数据结构，可以自由扩展

        private ArrayList paramsList = null;

        private IDictionary<String, Object> paramsDictionary = null;



        public ArrayList ParamsList

        {

            get { return paramsList; }

            set { paramsList = value; }

        }



        public IDictionary<String, Object> ParamsDictionary

        {

            get { return paramsDictionary; }

            set { paramsDictionary = value; }

        }



        public DeliveryParamsArgs()

        {

            paramsList = new ArrayList();

            paramsDictionary = new Dictionary<String, Object>();

        }

    }

}

1. 主窗体代码：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;



namespace DeliveryParam

{

    public partial class FrmMain : Form

    {

        public FrmMain()

        {

            InitializeComponent();

        }

        private string m_parm1 = null;

        private string m_parm2 = null;



        private void FrmMain_Load(object sender, EventArgs e)

        {

            

        }



        private void button1_Click(object sender, EventArgs e)

        {

            this.m_parm1 = this.textBox1.Text.ToString();

            this.m_parm2 = this.textBox2.Text.ToString();



            FrmChild child = new FrmChild();

            

            child.DeliveryList = new System.Collections.ArrayList();

            //将FrmMain的参数传递给FrmChild

            child.DeliveryList.Add(this.m_parm1);

            child.DeliveryList.Add(this.m_parm2);



            child.DeliveryParamsEvent += new FrmChild.DeliveryParamsHandler(child_DeliveryParamsEvent);//绑定事件

            child.Show();

        }



        void child_DeliveryParamsEvent(DeliveryParamsArgs e)

        {

            this.textBox1.Text = e.ParamsList[0].ToString();

            this.textBox2.Text = e.ParamsList[1].ToString();

        }

    }

}

4.      子窗体代码：



 

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Collections;



namespace DeliveryParam

{

    public partial class FrmChild : Form

    {

        public FrmChild()

        {

            InitializeComponent();

            

        }



        //窗体FrmMain中传递过了的参数集合

        private ArrayList deliveryList = null;



        public ArrayList DeliveryList

        {

            get { return deliveryList; }

            set { deliveryList = value; }

        }



        //窗体Frmchild中需要传递给FrmMain的参数

        private string c_parm1 = null;

        private string c_parm2 = null;



        private void FrmChild_Load(object sender, EventArgs e)

        {

            this.textBox1.Text = deliveryList[0].ToString();

            this.textBox2.Text = deliveryList[1].ToString();

        }



        public delegate void DeliveryParamsHandler(DeliveryParamsArgs e);//定义委托   

        public event DeliveryParamsHandler DeliveryParamsEvent;//定义事件



        private void button1_Click(object sender, EventArgs e)

        {

            DeliveryParamsArgs arrayParams = new DeliveryParamsArgs();

            this.c_parm1 = this.textBox1.Text.ToString();

            this.c_parm2 = this.textBox2.Text.ToString();



            arrayParams.ParamsList.Add(this.c_parm1);

            arrayParams.ParamsList.Add(this.c_parm2);



            arrayParams.ParamsDictionary.Add("c_parm1", this.c_parm1);

            arrayParams.ParamsDictionary.Add("c_parm2", this.c_parm2);



            //激发事件，写在你想要的地方   

            if (DeliveryParamsEvent != null)

            {

                DeliveryParamsEvent(arrayParams);

            }

            this.Close();

            this.Dispose();

        }

    }

}