c# winform 子父窗体交互信息

第一种利用委托的方法：

父窗体的方法：

[csharp]
private void constraintEnd_Click(object sender, EventArgs e)
   {
       //if (MessageBox.Show("即将强制将本炉次数据归档！", "警告", MessageBoxButtons.OKCancel) == DialogResult.OK)//2012.4.11修改
       //{
       CCMEnd ccmend = new CCMEnd(curHeatInfo.Rows[0]["heatid"].ToString(), label337.Text.ToString().Trim());
       ccmend.resultEvent += new CCMEnd.CalculateDelegate(Endccm);
       ccmend.Show(this);
   }

   public void Endccm(string result)
   {
       checkProcStatus();
       if (result.Equals("1"))
       {
           //MessageBox.Show("归档成功！", "警告");//2012.4.11修改

           MessageBoxTimeout.Show("归档成功！", "警告", 4000);
       }
       else
       {
           //MessageBox.Show(result, "警告");
           MessageBoxTimeout.Show(result, "警告", 4000);
       }
       //}
   }
    子窗体方法：
[csharp]
public delegate void CalculateDelegate(string result);

       public event CalculateDelegate resultEvent;

       private void button1_Click(object sender, EventArgs e)
       {
           if (!string.IsNullOrEmpty(textBox4.Text) && !string.IsNullOrEmpty(textBox5.Text))
           {
               QT_Service.QT_Service qtService = new UI.QT_Service.QT_Service();
               int cut_head = Int16.Parse(textBox4.Text);
               int cut_trimmed = Int16.Parse(textBox5.Text);
               result = qtService.EndEAFHeatID(4, string.Format("{0:yyyyMMddHHmmss}", DateTime.Now), cut_head, cut_trimmed);
               //CalculateDelegate calculate = new CalculateDelegate(((CCMMonitor)this.Owner).Endccm);
               //calculate(result);
               this.Close();
               resultEvent(result);
           }
           else
           {
               MessageBox.Show("输入有误，请重新输入！", "警告");
           }
       }
第二种方法：
父窗口：

[csharp]
public partial class Form1 : Form
   {
       public Form1()
       {
           InitializeComponent();
       }

       private void button1_Click(object sender, EventArgs e)
       {
           Form2 frm = new Form2(this,textBox1.Text);//带参数构造Form2(此方法该处带俩参数构造多余)

           if (frm.ShowDialog() == DialogResult.OK)
           {
               this.textBox1.Text += frm.ReturnText;//通过Form2的属性获得回传值
           }
           frm = null;

       }
子窗口：
[csharp]
public partial class Form2 : Form
{
     private Form1 pfrm;
     private string frm1txt;
     public Form2(Form1 parentfrm,string frm1text)
     {
         InitializeComponent();
         pfrm = parentfrm;
         frm1txt = frm1text;
     }
   public string ReturnText//回传值的属性
     {
         get { return this.frm1txt; }
     }
       private void button2_Click(object sender, EventArgs e)//给属性赋值并关闭模式窗体Form2
     {
         frm1txt = this.textBox2.Text;
         this.DialogResult = DialogResult.OK;//*必加模式窗体打开后只有DialogResult初始化后才可继续操作否则值无法传回
         this.Close();//模式窗体关闭.close（）相当于将窗体隐藏彻底关闭需要用.Dispose（）
     }

     private void button3_Click(object sender, EventArgs e)//关闭
     {
         this.DialogResult = DialogResult.Cancel;//同*
         this.Close();
     }
[csharp]

第三种方法就是将父窗口的对象当做参数传到子窗口。

补充：软件开发 , C# ,