说明：本文讲解两个窗体之间的传值，主要用到两个窗体，form1,form2

1、在form1窗体单击按钮，打开窗体form2，然后把form2中文本框的值传递给form1

form1中的代码：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace FormToform

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        //获取值

        private void button1_Click(object sender, EventArgs e)

        {

            Form2 fr = new Form2();

            DialogResult rsult = fr.ShowDialog();

            if(rsult==DialogResult.OK)

            {

                //获取窗体2传回来的值

                listBox1.Items.Add(fr.UKind);

                listBox1.Items.Add(fr.UName);

            }

        }

    }

}

窗体form2的代码：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace FormToform

{

    public partial class Form2 : Form

    {

        public Form2()

        {

            InitializeComponent();

        }

        //给窗体定义两个属性

     

        public string UKind {

            get { return textBox1.Text; }

            set { textBox1.Text= value; }

        }   

        public string UName

        {

            get { return textBox2.Text; }

            set { textBox2.Text = value; }

        }

        private void button1_Click(object sender, EventArgs e)

        {

            DialogResult = DialogResult.OK;

        }

    }

}

2、在form1窗体单击按钮，打开窗体form2，然后给form2中文本框赋值

form1中按钮的代码如下：

  private void button2_Click(object sender, EventArgs e)

        {

            Form2 fr = new Form2();

            fr.UName = "姓名";

            fr.UKind = "类别";

            DialogResult rsult = fr.ShowDialog();

           

        }

 

form2与标题1一样这里不做赘述