C# TabPage 继承

发布于 2024-10-08 18:49:29 字数 159 浏览 5 评论 0原文

我有两节课。第一类有TabPage控件。我想更改子类（B 类）中 TabPage 的布局。例如如何向 Child 类中的 tabPage 控件添加简单按钮？

Class A
{
   TabPage a;
}
Class B : Class A
{
}

原文

I have two classes. First class has TabPage control. I want to change layout of TabPage in Child class(Class B). For example how to add simple button to tabPage control in Child class?

Class A
{
   TabPage a;
}
Class B : Class A
{
}

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提笔落墨 2024-10-15 18:49:29

将 TabPage 更改为公开

    class A
    {
        public TabPage a;
    } 
    class B : A
    {

    }

Change the TabPage to public

    class A
    {
        public TabPage a;
    } 
    class B : A
    {

    }

回复收藏 0 原文

情深缘浅 2024-10-15 18:49:29

首先你需要将A类中的TabPage设为public，然后在你的TabPage控件集合中添加你想要添加的控件；在此示例中，我向 TabPage 添加了一个按钮，您可以类似地添加更多控件。

class A
{
    public TabPage a;
} 
class B : A
{
        //Create a control to add and set its properties
        Button btn = new Button();
        btn.Location = new Point(20, 20);
        btn.Size = new Size(120, 25);
        btn.Text = "My new Button";
        //Add the control to the Tabpage.
        a.Controls.Add(btn);
}

这实际上取决于您的情况，如果您也希望从基类访问 TabPage，请将其设为公共，否则将受到保护。

受保护

class A
{
    //Visible only to Inheriting class;
    protected TabPage a;
} 
class B : A
{
        //Create a control to add and set its properties
        Button btn = new Button();
        btn.Location = new Point(20, 20);
        btn.Size = new Size(120, 25);
        btn.Text = "My new Button";
        //Add the control to the Tabpage.
        a.Controls.Add(btn);
        //This will be visible to everybody
        public TabPage b= a;
}

First you need to have TabPage in Class A to be public, then add the controls you want to add in your TabPage control collection; in this example i have added a button to the TabPage you can add many more controls similarly.

class A
{
    public TabPage a;
} 
class B : A
{
        //Create a control to add and set its properties
        Button btn = new Button();
        btn.Location = new Point(20, 20);
        btn.Size = new Size(120, 25);
        btn.Text = "My new Button";
        //Add the control to the Tabpage.
        a.Controls.Add(btn);
}

It really depends upon your situation, if you want to have TabPage accessible from base class too, make it public otherwise protected.

For protected

class A
{
    //Visible only to Inheriting class;
    protected TabPage a;
} 
class B : A
{
        //Create a control to add and set its properties
        Button btn = new Button();
        btn.Location = new Point(20, 20);
        btn.Size = new Size(120, 25);
        btn.Text = "My new Button";
        //Add the control to the Tabpage.
        a.Controls.Add(btn);
        //This will be visible to everybody
        public TabPage b= a;
}

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