如何在 WinForms 中控制对接顺序

我正在寻找一种方法来控制的顺序，其中的项目停靠在我的控制顶部。

我已经注意到，当我将子元素添加到控件(在设计器中或通过代码)时，最新的子元素总是位于顶部。我希望年龄较小的孩子在最底层，年龄最大的孩子在最顶层。

有没有办法通过代码实现这一点？在 WinForms 设计器中，RightClick->Order->BringToFront/SendToBack正在做一些类似于我想要做的事情，但是如何通过编程来实现呢？

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A control has two methods to achieve what you are looking for: BringToFront and SendToBack.

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Go to View → Other windows → document outline.

In that window drag the controls so the docking is as you like it to be.

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The order in which the controls are being added to the Controls collection determines the docking order.

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最佳答案

Use these methods:

myControl.SendToBack();
myControl.BringToFront();

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As you said, the newest control added to the controls collection is the one on top. If you need a newer control to be added at the bottom, I'll suggest to create a list of controls, add the controls to the list, reverse the list and add the list to the controls collection.

List<Control> controls = new List<Control();
controls.Add(new myFirstControl());
controls.Add(new mySecondControl());
controls.Reverse();
this.Controls.AddRange(controls.ToArray());

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Use the FlowLayoutPanel it does exactly what you want.

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(For the sake matter of showing another option): In Visual Studio 2012 (and later):

Select the Control you want to Move to the Front (or back);
Click in the below marked buttons (Bring to Front / Send to Back);

This will give you the possibility to rearrange the Controls to your desired order.

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Note that when doing this programmatically, then there's a very easy way to achieve this, namely:

containerPanel.Controls.SetChildIndex(Element, 0); //sends element to the bottom of the list