C# 界面间数据传递

来源：互联网发布：推荐算法数据集编辑：程序博客网时间：2024/04/28 13:50

两界面的数据传递是通过定义 static string来确定的。

一端：Form1

public static string str1; // 在Form1 中定义

另一端：Form2

label = Form1.str1; //在Form2 中实现，数据的传递

Form1

：

using System.Threading;

namespace shuju
{
   public partial class Form1 : Form
   {
   Thread thread;
   public delegate void hua(); // 定义委托
   public static string str1;
   public Form1()
   {
   InitializeComponent();
   Form2 frm = new Form2(); //打开另一界面
   frm.Show();
   thread = new Thread(new ThreadStart(thread_str)); // 创建线程
   thread.Start();
   }
   public void thread_str()
   {
   while(true)
   {
   bbbb();
   }
   }
   public void bbbb()
   {
   try
   {
   if (label1.InvokeRequired)
   {
   hua ff = new hua(bbbb);
   this.Invoke(ff);
   }
   else
   {
   label1.Text = Form2.str2;
   }
   }
   catch (Exception e)
   {
   thread.Abort();
   MessageBox.Show(e.ToString());
   }
   }

   private void button1_Click(object sender, EventArgs e)
   {
   this.Close();
   }

   private void button2_Click(object sender, EventArgs e)
   {
   str1 = textBox1.Text;
   textBox1.Text = "";
   }

   private void button3_Click(object sender, EventArgs e)
   {
   //label1.Text = Form2.str2;
   }
   }
}

Form2：

using System.Threading;

namespace shuju
{
   public partial class Form2 : Form
   {
   public delegate void bian(); //定义委托
   Thread thread;
   public static string str2;
   public Form2()
   {
   InitializeComponent();
   thread = new Thread(new ThreadStart(threading)); //线程
   thread.Start();
   }
   public void threading()
   {
   while (true)
   {
   Setting();
   }
   }
   public void Setting() // 刷新 label
   {
   try
   {
   if (this.label1.InvokeRequired)
   {
   bian fc = new bian(Setting);
   this.Invoke(fc);
   }
   else
   {
   label1.Text = Form1.str1;
   }
   }
   catch(Exception e)
   {
   thread.Abort();
   MessageBox.Show(e.ToString());
   }
   }

   private void button1_Click(object sender, EventArgs e)
   {
   label1.Text = Form1.str1;
   }

   private void button2_Click(object sender, EventArgs e)
   {
   str2 = textBox1.Text;
   }
   }
}