在运行时锚定到流布局 [英] Anchor to Flow layout at runtime

问题描述

大家好，

我在将控件固定在流布局面板的左右边缘时遇到困难.

我无法在设计器中查看控件的设置，因为它们在运行时动态加载，因此需要找到一种方法.

我已经尝试过的代码应该可以正常工作，我看不到出了什么问题=/

Hi all,

I am experiencing difficulty in anchoring a control within a flow layout panel to the right and left edges.

I cannot view the controls to set this in the designer as they are loaded dynamically at run time so need to find a way of doing this.

The code i have already tried is which should work, i cannot see what''s going wrong =/

        private void flowLayoutPanel1_ControlAdded(object sender, ControlEventArgs e)
        {
            e.Control.Anchor = ((System.Windows.Forms.AnchorStyles)
                (((System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right)));
}

谢谢George

Thanks George

推荐答案

感谢约翰尼斯内斯特勒(Johannesnestler)发布的链接，我得以设计出一种解决方案.

链接: http://msdn.microsoft.com/en-us/library /ms171633(v=VS.90).aspx [ ^ ]

(执行此操作可能有更有效的方法，但是它适用于我的应用程序的范围，该应用程序的流程布局中将包含3个控件)

Thanks to the link posted by Johannesnestler i was able to devise a solution.

Link: http://msdn.microsoft.com/en-us/library/ms171633(v=VS.90).aspx[^]

(There may be a more efficient way of doing this however it works for the scope of my application which will have 3 controls in the flow layout)

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        // Populate flow layout
        flowLayoutPanel1.Controls.Add(new Button());
        flowLayoutPanel1.Controls.Add(new Button());
        flowLayoutPanel1.Controls.Add(new Button());
        flowLayoutPanel1.Controls.Add(new Button());
    }

    private void flowLayoutPanel1_ControlAdded(object sender, ControlEventArgs e)
    {
        // Set the width of the first control added to the flow layout and the anchor of the rest
        if (e.Control.Equals(flowLayoutPanel1.Controls[0]))
        {
            e.Control.Size = new Size(flowLayoutPanel1.Width - 4,
                flowLayoutPanel1.Controls[0].Height);
        }
        else
        {
            // Anchor will span the area of the first control in the list view
            e.Control.Anchor = ((System.Windows.Forms.AnchorStyles)
                (((System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right)));
        }
    }

    protected override void OnResize(EventArgs e)
    {
        base.OnResize(e);

        if(flowLayoutPanel1.Controls.Count > 0)
        {
                // Set size of the first control in the flow layout as the rest will anchor depending
                // on its width. (4) represents border offset
                flowLayoutPanel1.Controls[0].Size = new Size(flowLayoutPanel1.Width - 4,
                flowLayoutPanel1.Controls[0].Height);
                return;
        }
    }
}

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