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这个控件是什么？是否有分组框！

发布于 2024-10-15 14:37:30 字数 202 浏览 3 评论 0原文

只是对下面显示的控件感到好奇，旁边带有标签的直线。我试图为它找到一个类似的控件，但没有任何组框设置，所以我只是制作了一个高度为 2 的 GroupBox 来复制它。

但是否有实际的控制或设置可以做到这一点？实际控制叫什么？

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青春如此纠结 2024-10-22 14:37:30

Spy++ 告诉我们这些实际上是两个独立的 STATIC 控件（类似于中的 Label WinForms）。

第一个只是一个显示“主页”的常规静态文本控件。
第二个具有 SS_ETCHEDHORZ 样式设置，使其绘制为 3D 线。不幸的是，设置这种样式的能力并没有从 WinForms 中向我们公开。

正如您在问题中指出的那样，有一些技巧/解决方法可以让我们实现类似的外观，例如垂直压缩 GroupBox 控件，或覆盖 OnPaint 方法Label 控件并使用 ControlPaint 类绘制 3D 边框。它们有用，但我从来不喜欢它们。

但您实际上可以自己设置 SS_ETCHEDHORZ 样式，以便可以准确地复制本机 UI。这是一个小类，它正是这样做的。将其添加到您的项目中，进行编译，您应该会看到一个名为“HorizontalRule”的新控件出现在您的工具箱中。就像使用任何其他控件一样使用它！

public class HorizontalRule : Control
{
    private const int FixedHeight   = 2;

    private const int WS_CHILD      = 0x40000000;
    private const int WS_VISIBLE    = 0x10000000;
    private const int SS_ETCHEDHORZ = 0x00000010;
    private const int SS_ETCHEDVERT = 0x00000011;

    protected override CreateParams CreateParams
    {
        get
        {
            CreateParams cp = base.CreateParams;
            cp.ClassName = "STATIC";
            cp.Style = WS_CHILD | SS_ETCHEDHORZ;
            if (this.Visible)
            {
                cp.Style |= WS_VISIBLE;
            }
            return cp;
        }
    }

    protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified)
    {
        height = FixedHeight;
        base.SetBoundsCore(x, y, width, height, specified);
    }
}

您还可以在 CodeProject 上找到更多详细信息和其他示例代码。

Spy++ tells us those are actually two separate STATIC controls (similar to a Label in WinForms).

The first is simply a regular static text control that says "Home page".
The second has the SS_ETCHEDHORZ style set, which makes it draw as a 3D line. Unfortunately, the ability to set this style is not exposed to us from within WinForms.

As you noted in the question, there are some hacks/workarounds that allow us to achieve a similar look, like vertically compressing a GroupBox control, or overriding the OnPaint method of a Label control and using the ControlPaint class to draw a 3D border. They work, but I've never liked them.

But you can actually set the SS_ETCHEDHORZ style yourself so that you can replicate the native UI exactly. Here's a little class that does exactly that. Add it to your project, compile, and you should see a new control appear in your toolbox called "HorizontalRule". Use it just like you would any other control!

public class HorizontalRule : Control
{
    private const int FixedHeight   = 2;

    private const int WS_CHILD      = 0x40000000;
    private const int WS_VISIBLE    = 0x10000000;
    private const int SS_ETCHEDHORZ = 0x00000010;
    private const int SS_ETCHEDVERT = 0x00000011;

    protected override CreateParams CreateParams
    {
        get
        {
            CreateParams cp = base.CreateParams;
            cp.ClassName = "STATIC";
            cp.Style = WS_CHILD | SS_ETCHEDHORZ;
            if (this.Visible)
            {
                cp.Style |= WS_VISIBLE;
            }
            return cp;
        }
    }

    protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified)
    {
        height = FixedHeight;
        base.SetBoundsCore(x, y, width, height, specified);
    }
}

You can also find more detailed information and additional sample code here on CodeProject.

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