实现组件大小随窗口大小变化

深藏阁楼爱情的钟 2023-10-14 13:23 76阅读 0赞

暂时只学会用代码的方式，如果后续了解到在可视化界面的属性栏中可以设置会进而更新分享

## 组件界面和一些属性 ##

![在这里插入图片描述][080f8e115a2a4fb9ae1efa4f2ddc93fa.png]  
一些布局属性  
![在这里插入图片描述][a911f425b3824f5dba7e2181f0486d56.png]  
![在这里插入图片描述][3a8e17f2275d4b5699232ab33c4fb8a7.png]  
![在这里插入图片描述][406447b4f73344119c1314d08dc280a2.png]

## 详细代码实现 ##

![在这里插入图片描述][e0cc2a0cbc2d48d49a70b9afa579d17c.png]

**详细代码**

//从这里开始复制下面的代码！！！
            //第一步，定义控件自适应窗口类AutoSizeFormClass
            class AutoSizeFormClass
            {
        
                public struct ControlRect
                {
        
                    public int Left;
                    public int Top;
                    public int Width;
                    public int Height;
                }
    
                public List<ControlRect> oldCtrl = new List<ControlRect>();
                int ctrlNo = 0;
    
                //重要方法一：记录窗体和其控件的初始位置和大小controllInitializeSize()
                public void controllInitializeSize(Control mForm)
                {
        
                    ControlRect cR;
                    cR.Left = mForm.Left; cR.Top = mForm.Top; cR.Width = mForm.Width; cR.Height = mForm.Height;
                    oldCtrl.Add(cR);
                    AddControl(mForm);
    
                    foreach (ControlRect item in oldCtrl)
                    {
        
                        Console.WriteLine(item.Width);
                    }
                }
                private void AddControl(Control ctl)
                {
        
                    foreach (Control c in ctl.Controls)
                    {
        
                        ControlRect objCtrl;
                        objCtrl.Left = c.Left; objCtrl.Top = c.Top; objCtrl.Width = c.Width; objCtrl.Height = c.Height;
                        oldCtrl.Add(objCtrl);
                        if (c.Controls.Count > 0)
                            AddControl(c);
                    }
                }
    
                //重要方法二：控件自适应大小方法controlAutoSize()
                public void controlAutoSize(Control mForm)
                {
        
                    if (ctrlNo == 0)
                    {
        
                        ControlRect cR;
                        cR.Left = 0; cR.Top = 0; cR.Width = mForm.PreferredSize.Width; cR.Height = mForm.PreferredSize.Height;
                        oldCtrl.Add(cR);
                        AddControl(mForm);
                    }
                    float wScale = (float)mForm.Width / (float)oldCtrl[0].Width;
                    float hScale = (float)mForm.Height / (float)oldCtrl[0].Height;
                    ctrlNo = 1;
                    AutoScaleControl(mForm, wScale, hScale);
                }
                private void AutoScaleControl(Control ctl, float wScale, float hScale)
                {
        
                    int ctrLeft0, ctrTop0, ctrWidth0, ctrHeight0;
                    foreach (Control c in ctl.Controls)
                    {
        
                        ctrLeft0 = oldCtrl[ctrlNo].Left;
                        ctrTop0 = oldCtrl[ctrlNo].Top;
                        ctrWidth0 = oldCtrl[ctrlNo].Width;
                        ctrHeight0 = oldCtrl[ctrlNo].Height;
    
                        c.Left = (int)((ctrLeft0) * wScale);
                        c.Top = (int)((ctrTop0) * hScale);//
                        c.Width = (int)(ctrWidth0 * wScale);
                        c.Height = (int)(ctrHeight0 * hScale);//
                        ctrlNo++;
                        if (c.Controls.Count > 0)
                            AutoScaleControl(c, wScale, hScale);
    
                        if (ctl is DataGridView)
                        {
        
                            DataGridView dgv = ctl as DataGridView;
                            Cursor.Current = Cursors.WaitCursor;
    
                            int widths = 0;
                            for (int i = 0; i < dgv.Columns.Count; i++)
                            {
        
                                dgv.AutoResizeColumn(i, DataGridViewAutoSizeColumnMode.AllCells);  // 自动调整列宽  
                                widths += dgv.Columns[i].Width;   // 计算调整列后单元列的宽度和                      
                            }
                            if (widths >= ctl.Size.Width)  // 如果调整列的宽度大于设定列宽  
                                dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.DisplayedCells;  // 调整列的模式 自动  
                            else
                                dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;  // 如果小于 则填充  
    
                            Cursor.Current = Cursors.Default;
                        }
                    }
                }
            }
    
    
            //第二步，实例化上面定义的类
            AutoSizeFormClass asc = new AutoSizeFormClass();
    
            //第三步，初始化窗口时记录控件的大小和位置
            private void Auto_Load(object sender, EventArgs e)
            {
        
                asc.controllInitializeSize(this);
            }
    
            //第四步，主窗口大小发生变化触发的事件
            private void Auto_SizeChanged(object sender, EventArgs e)
            {
        
                asc.controlAutoSize(this);
            }

## 效果 ##

![在这里插入图片描述][394b677bb22c48ecbe0f51aed1ff6d0c.png]  
**放大到全屏的效果，（拖动窗口大小也会跟着变化）**  
![在这里插入图片描述][408eadf1302c4dd5bb6f95e385f63ef7.png]

[080f8e115a2a4fb9ae1efa4f2ddc93fa.png]: https://img-blog.csdnimg.cn/080f8e115a2a4fb9ae1efa4f2ddc93fa.png
[a911f425b3824f5dba7e2181f0486d56.png]: https://img-blog.csdnimg.cn/a911f425b3824f5dba7e2181f0486d56.png
[3a8e17f2275d4b5699232ab33c4fb8a7.png]: https://img-blog.csdnimg.cn/3a8e17f2275d4b5699232ab33c4fb8a7.png
[406447b4f73344119c1314d08dc280a2.png]: https://img-blog.csdnimg.cn/406447b4f73344119c1314d08dc280a2.png
[e0cc2a0cbc2d48d49a70b9afa579d17c.png]: https://img-blog.csdnimg.cn/e0cc2a0cbc2d48d49a70b9afa579d17c.png
[394b677bb22c48ecbe0f51aed1ff6d0c.png]: https://img-blog.csdnimg.cn/394b677bb22c48ecbe0f51aed1ff6d0c.png
[408eadf1302c4dd5bb6f95e385f63ef7.png]: https://img-blog.csdnimg.cn/408eadf1302c4dd5bb6f95e385f63ef7.png