在运行时创建对象 [英] create the object at runtime

问题描述

我现在正在创建一个MDI Windows应用程序，我所要创建的方法如下所示:

I am creating a MDI windows application now what I wnat is to create a method as shown below :

public void openChildForm(string s)
        {
            int flag = 0;
            foreach (Form childForm in MdiChildren)
            {
                if (childForm.Name == s)
                { flag = 1; }
            }
            if (flag == 0)
            {
                Form ob=new
                s ob = new s();
                ob.MdiParent = this;
                ob.Show();
            }
        }

单击menuItem时打开子窗体..它不起作用..

由于s是一个字符串对象.现在请在运行时帮助我创建特定的表单对象.

to open the child forms when a menuItem is clicked..its not working..

as s is a string object ..now please help me to create the specific form object at run time.

推荐答案

您需要清理一些代码方法:

There is some code you need to clean up in your method:

public void openChildForm(string s)
{
    foreach (Form childForm in MdiChildren)
    {
        if (childForm.Name == s)
        {
            childForm.MdiParent = this;
            childForm.Show();
            break;
        }
    }
    /*
    if (flag == 0)
    {
        Form ob=new           // This is complete gibberish
        s ob = new s();       // if s isn't a type this wont work, if by s you mean the string variable this is absolute nonsense.
        ob.MdiParent = this;
        ob.Show();
    }
    */
}

问候，

Manfred

Regards,

Manfred

此处提供的代码中，MdiChildren将包含具有名称属性的表单对象.如果名称属性等于"S"，则显示该对象.这是我的理解.如果是这样，

Here from the code that you have provided, MdiChildren will contain form object which has name attribute. If the name attribute is equal to "S", then show that object. This is what I understood. If so then

public void openChildForm(string s)
        {
            int flag = 0;
            foreach (Form childForm in MdiChildren)
            {
                if (childForm.Name == s)
                {
                  //childForm.Show() will suffice               
                  
                   //OR
                  Form ob=new
                  s ob = new s();
                  ob.MdiParent = this;
                  ob.Show();
                  break;
                }
            }
         }

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