传输数据到处理程序

问题描述：

我有Form1与Form1.cs文件，它调用Helpers.cs中的方法。该方法将引起表单的实例作为参数，然后创建按钮和文本框并为按钮分配处理程序。？如何按钮处理程序启动时传递文本框的文本值处理方法Helpers.cs有这样的方法：传输数据到处理程序

 public static void startpage(Form form) 
    { 
     try 
     { 
      var Tip = new Label() { Text = "Input instance name", 
       Location = new Point(50, 50), AutoSize = true }; 

      var StartConnection = new LinkLabel() { Text = "Connect", 
       Location = new Point(50, 100), AutoSize = true}; 

      var InstanceInput = new TextBox() { Text = "INSTANCENAME", 
       Location = new Point(100, 70), MaxLength = 1000, Width = 200, 
      BorderStyle=BorderStyle.FixedSingle}; 

      StartConnection.Click += new EventHandler(nextpage); 

      Helpers.AddControlsOnForm(form, 
       new Control[] {Tip,StartConnection,InstanceInput }); 

     } 
     catch(Exception ex) 
     { MessageBox.Show("Error occured. {0}",ex.Message.ToString()); } 
    } 
     public static void nextpage(Object sender, EventArgs e) 
    { 
     //I want to work with instance name and form there 
    }

显示你的工作..人们无法阅读你的想法。 – 2013-04-28 11:43:30

你可以看到代码。 – Wido 2013-04-28 12:06:28

答

最简单的方法是将文本框实例连接到LinkLabel控件的Tag财产和访问它处理程序：

public static void startpage(Form form) 
{ 
    try 
    { 
     var Tip = new Label() { Text = "Input instance name", 
      Location = new Point(50, 50), AutoSize = true }; 

     var InstanceInput = new TextBox() { Text = "INSTANCENAME", 
      Location = new Point(100, 70), MaxLength = 1000, Width = 200, 
     BorderStyle=BorderStyle.FixedSingle}; 

     var StartConnection = new LinkLabel() { Text = "Connect", 
      Location = new Point(50, 100), AutoSize = true, Tag = InstanceInput }; 

     StartConnection.Click += new EventHandler(nextpage); 

     Helpers.AddControlsOnForm(form, 
      new Control[] {Tip,StartConnection,InstanceInput }); 

    } 
    catch(Exception ex) 
    { MessageBox.Show("Error occured. {0}",ex.Message.ToString()); } 
} 

public static void nextpage(Object sender, EventArgs e) 
{ 
    var text = ((sender as LinkLabel).Tag as TextBox).Text; 
}

在任何情况下，你要么必须存储实例某处（在这种情况下，在标签属性）或搜索窗体的Controls集合，然后找到所需的控制。

传输数据到处理程序

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