如何为用户控件创建图标 [英] how can create an Icon for an user control

问题描述

你好

我已经创建了一个用户控件，我想为其分配一个图标.我尝试从SolutionExplorer/属性/应用程序选项卡/图标和清单进行尝试，但没有得到任何正确的结果.

是否有任何方法可以做到这一点?谁可以帮助我?

谢谢.

Hello

I have created an user control and I want to assign it an icon. I try it from SolutionExplorer / properties /application tab / icon and manifest but I didn''t get any correct result.

Do exist any way to do it? Who can help me?

Thanks.

推荐答案

如果您是说要在控件的工具箱中显示一个图标，则此 [ ^ ]文章很有用.它的解释要比Microsoft页面更清楚.

If you mean an icon to appear in the toolbox for your control, then this[^] might help.

You might also find this[^] article useful. It explains a little more clearly than the Microsoft page.

没有分配图标".这是用户控件；您要对其图形呈现完全负责.

您可以覆盖其OnPaint方法，并使用在其PaintEventArg类型参数中传递的Graphics对象在其表面上绘制任何图形.
(不要创建Graphics对象，这是一个常见错误.)为控件创建Icon属性，并且不要忘记在实现OnPaint的过程中检查它是否为null. .您可能还希望(并且通常需要)根据用户提供的图标的大小来调整UserControl所有子级的布局.

我还建议使用Bitmap而不是Icon.图标主要是为了与Shell API配合使用而设计的，因此您只需要一个图标即可代表您的应用程序和表单，而不是控件.

—SA

There is no "assign icon". This is User control; you''re fully responsible for its graphical rendering.

You can override its OnPaint method and draw any graphics on its surface using Graphics object passed in its parameter of the type PaintEventArg.
(Don''t create a Graphics object, it''s a common mistake.) Create an Icon property for your control and don''t forget to check if it is null in your implementation of OnPaint. You may also want (and usually need to) to adjust layout of all of the children of your UserControl depending on the size of the icon supplied by the user.

I also suggest using Bitmap instead of Icon. Icons are mostly designed to work with Shell API, so you only need an icon to represent your application and forms, not controls.

—SA

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