如何并排动态添加控件？ [英] How can I dynamically add a controls side by side?

问题描述

如何动态添加带有边距的PictureBox控件？

首选项：是否可以链接边距的大小（以像素为单位）到文本框的输入？

Hi, How do I dynamically add the PictureBox control side by side with a margin?
Preference: Could it be possible to link the size of the margin in pixels to a textbox's input?

推荐答案

我假设您正在使用WinForm

我创建了DemoForm并添加了它 FlowLayoutPanel （面板）和 NumericUpDown （numericUpDownMargin）

这里是一些代码

I assume that you are using WinForm
I have created DemoForm and added on it FlowLayoutPanel (panel) and NumericUpDown (numericUpDownMargin)
here is some code

public partial class DemoForm : Form
    {
        private List<PictureBox> pictures;
        private int n = 16;
        public DemoForm()
        {
            InitializeComponent();
            // then form is resing, panel is also resizing and all picture boxes will change their location
            panel.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
            numericUpDownMargin.ValueChanged += MarginValueChanged;

            pictures = new List<PictureBox>();
            // adding picture boxes with images
            for(int i=0; i<n; i++)
            {
                var picture = new PictureBox();
                var bmp = new Bitmap(@"path to your image");
                picture.Image = bmp;
                picture.Size = new Size(150,150);
                pictures.Add(picture);
                panel.Controls.Add(picture);
                picture.Visible = true;
            }
        }

        // changing margin of all pictures boxes
        private void MarginValueChanged(object sender, EventArgs e)
        {
            int margin = (int) numericUpDownMargin.Value;
            panel.SuspendLayout();
            foreach (var pictureBox in pictures)
                pictureBox.Margin = new Padding(margin);

            panel.ResumeLayout();
        }
    }

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