重新定位面板混淆了 WinForms

Question

我正在使用 C# 和 WinForms 创建一个应用程序。我有三个面板。其中两个相当大，目前并排放置。我正在尝试为屏幕较小或希望表单尺寸较小的用户实现一项功能。我正在将右侧面板重新定位在中间面板下方并将它们重新定位在表格中。 我遇到的问题是，当用户向下滚动并再次调整表单大小时，两个中间面板（大的）在表单中向下移动，在顶部留下一大块空白区域。

我的代码很简单

namespace ResizeCheck
{
    public partial class Form1 : Form
    {
        Point originalLeft, originalRight;
        bool flag = false;
        public Form1()
        {
            InitializeComponent();
            originalLeft = leftInnerPanel.Location;
            originalRight = rightInnerPanel.Location;
        }
        private void vertical()//move the right panel under the left one
        {
            leftInnerPanel.Location = new Point(this.Width / 2 - leftInnerPanel.Width / 2, 5);
            if (leftInnerPanel.Location.X <= buttonPanel.Location.X + buttonPanel.Width)
            {
                leftInnerPanel.Location = new Point(buttonPanel.Location.X + buttonPanel.Width, leftInnerPanel.Location.Y);
            }
            rightInnerPanel.Location = new Point(leftInnerPanel.Location.X, leftInnerPanel.Height + 10);
            MessageBox.Show("inside vertical " + leftInnerPanel.Location.Y);
        }

        private void horizontal()//relocate to their original horizontal position
        {
            leftInnerPanel.Location = new Point(buttonPanel.Location.X + buttonPanel.Width + 10, 5);
            if (leftInnerPanel.Location.X <= buttonPanel.Location.X + buttonPanel.Width)
            {
                leftInnerPanel.Location = new Point(buttonPanel.Location.X + buttonPanel.Width, leftInnerPanel.Location.Y);
            }
            rightInnerPanel.Location = new Point(leftInnerPanel.Location.X + leftInnerPanel.Width + 20, 5);
            MessageBox.Show("inside horizontal " + leftInnerPanel.Location.Y);
        }

        private void Form1_SizeChanged(object sender, EventArgs e)//handler for when the form is resized by the user
        {
            if ((leftInnerPanel.Width + rightInnerPanel.Width + buttonPanel.Width) >= this.Width)
            {
                vertical();
                //flag = true;
            }
            else if ((leftInnerPanel.Width + rightInnerPanel.Width + buttonPanel.Width) + 50 < this.Width)
            {
                horizontal();
                //flag = false;
            }
        }
    }
}

我的设计器代码也相当简单。

namespace ResizeCheck
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.rightInnerPanel = new System.Windows.Forms.Panel();
            this.leftInnerPanel = new System.Windows.Forms.Panel();
            this.buttonPanel = new System.Windows.Forms.Panel();
            this.SuspendLayout();
            // 
            // rightInnerPanel
            // 
            this.rightInnerPanel.BackColor = System.Drawing.Color.Yellow;
            this.rightInnerPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.rightInnerPanel.Location = new System.Drawing.Point(887, 13);
            this.rightInnerPanel.Name = "rightInnerPanel";
            this.rightInnerPanel.Size = new System.Drawing.Size(662, 936);
            this.rightInnerPanel.TabIndex = 1;
            // 
            // leftInnerPanel
            // 
            this.leftInnerPanel.BackColor = System.Drawing.Color.Yellow;
            this.leftInnerPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.leftInnerPanel.Location = new System.Drawing.Point(219, 13);
            this.leftInnerPanel.Name = "leftInnerPanel";
            this.leftInnerPanel.Size = new System.Drawing.Size(662, 936);
            this.leftInnerPanel.TabIndex = 0;
            // 
            // buttonPanel
            // 
            this.buttonPanel.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
            this.buttonPanel.Location = new System.Drawing.Point(13, 13);
            this.buttonPanel.Name = "buttonPanel";
            this.buttonPanel.Size = new System.Drawing.Size(200, 258);
            this.buttonPanel.TabIndex = 1;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.AutoScroll = true;
            this.ClientSize = new System.Drawing.Size(1008, 601);
            this.Controls.Add(this.rightInnerPanel);
            this.Controls.Add(this.buttonPanel);
            this.Controls.Add(this.leftInnerPanel);
            this.Name = "Form1";
            this.Text = "Form1";
            this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
            this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged);
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.Panel rightInnerPanel;
        private System.Windows.Forms.Panel leftInnerPanel;
        private System.Windows.Forms.Panel buttonPanel;
    }
}

Answer 1

您没有考虑表单滚动了多少，您只是将面板放在可见客户区的顶部。

因此更改您的Vertical() 方法：

    private void vertical()
    {
        leftInnerPanel.Location = new Point(this.Width / 2 - leftInnerPanel.Width / 2, 5 - VerticalScroll.Value);
        if (leftInnerPanel.Location.X <= buttonPanel.Location.X + buttonPanel.Width)
            leftInnerPanel.Location = new Point(buttonPanel.Location.X + buttonPanel.Width, leftInnerPanel.Location.Y);
        rightInnerPanel.Location = new Point(leftInnerPanel.Location.X, leftInnerPanel.Bottom + 10);
    }

注意两点：

1) 使用VerticalScroll 成员。

2) 在Horizontal() 方法中使用Bottom 代替Height（和Right 代替Width）。

Answer 2

在vertical() 由于您没有调整leftInnerPanel 的Y，我们可以直接使用buttonPanel.Top

leftInnerPanel.Location = new Point(this.Width / 2 - leftInnerPanel.Width / 2, buttonPanel.Top);

其次，

//rightInnerPanel.Location = new Point(leftInnerPanel.Location.X, leftInnerPanel.Height + 10);
rightInnerPanel.Location = new Point(leftInnerPanel.Location.X, leftInnerPanel.Bottom + 10);