UserControl的大小由构造函数 [英] Size of UserControl by Constructor

问题描述

也许标题不是很好 - 因此我尝试解释我的问题：

我经常创建自己的控件和/或用户控件。

全部我的控件是可扩展的。

在我的一些UserControls中，我在InitializeComponents-Call之后在Constructor-Script（New）中设置Size-Property为一个固定值（例如Mybase.size = new size （150,30））。将控件放入表单（例如）时，将完全忽略此设置。将它放在Form上后，可以随时调整Control的大小，此设置也存储在Form的Designer-Script中（或容器控件中）。



我在哪里犯这个错误？

Perhaps the title is not very good - therefore I try to explain my "problem" :
I often create my own Controls and/or UserControls.
All of my Control are scalable.
In some of my UserControls I set the Size-Property in the Constructor-Script (New) after the InitializeComponents-Call to a fixed value (for example Mybase.size = new size (150,30)). This setting is completly ignored when I put the Control to a Form (for example). After putting it on a Form it is all times possible to resize the Control and this setting is also stored in the Designer-Script of the Form (or in a Container-Control).

Where do I make the mistake ?

推荐答案

你的问题含糊不清。我需要一个确切的完整类型名称来给出确切的答案。但是，可能的解决方案是：尺寸（或宽度和高度）是不够的，甚至不需要。您可以通过将属性 MinimumSize 和 MaximumSize 设置为相同的常量值来规定固定大小。







好​​吧，这是类 System.Windows.Forms .UserControl ：

https://msdn.microsoft.com/en-us/library/system.windows.forms.usercontrol%28v=vs.110%29.aspx [ ^ ]。



这样做，例如：

Your question is ambiguous. I need an exact full type name to give an exact answer. However, chances are, the solution is: Size (or Width and Height) is not enough and is not even required. You can prescribe fixed size by setting the properties MinimumSize and MaximumSize to the same constant value.



All right, this is the class System.Windows.Forms.UserControl:
https://msdn.microsoft.com/en-us/library/system.windows.forms.usercontrol%28v=vs.110%29.aspx[^].

Do this, for example:

public class MyClass : UserControl {

    public MyClass {
        defaultSize = //... setup some fixed size
    }
    
    protected virtual Size DefaultMaximumSize {
        get { return this.defaultSize; }
    }
    protected virtual Size DefaultMinimumSize {
        get { return this.defaultSize; }
    }

    Size defaultSize;

    // ...
    
}

-SA

它可能会在父控件的InitializeComponent方法中被覆盖 - 在这种情况下，持有UserControl的表单 - 如果你看一下表单设计器代码，你几乎肯定会看到它设置你的UserControl的Size属性。



你可以通过使用阴影创建新的大小来隐藏大小属性[ ^ ]在声明中使真正的Base.Size属性仅可见来自班级内。

The chances are it's being overwritten in the InitializeComponent method of the parent control - in this case the Form that holds the UserControl - if you look at the form Designer code you will almost certainly see it setting the Size property of your UserControl.

You could hide the Size property by creating a new Size with Shadows[^] in the declaration to make the "genuine" Base.Size property only visible from within the class.

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