Question

我有2个窗口表格,一个是父母,另一个是儿童。父母是主要形式。孩子们是一位方言,使用者可以 where弄他们的细节。

如果在母体表格上点击,则装上儿童表格。与此类似:

private void add_account_Click(object sender, EventArgs e)
{
     this.account_add_edit = new Form2();
     account_add_edit.test();
     account_add_edit.ShowDialog();
}

As you can see I ve created a new form, tried to call a function from the new form, and then showed the form. The problem is the method from the form is not being called. I am getting an error on the IDE that says Windows.Forms.Form does not contain a method test.

I ve created the method in the child form:

public static string test(string val)
{
    this.username = val;
}

任何关于我做什么错误的想法?

Answer 1

your method is defined as static , so its not posiible to call it on an instace. you should eaither not make it static, or call it from as static:

Form2.test();

Answer 2

Use:

   Form2.test();

<代码>static members are direct associated to the class not to its instances/em>。您需要查阅<代码>static 成员必须使用该集装箱类型<>。

More than that, you can not access normal members from static ones. You can only access staticmembers from their peers.

You cannot do the following inside a static method:

this.Member ...

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