C#实现窗体中的各个控件同比自动放缩大小

实现方式主要是利用panel控件为主题，对于每个控件的大小位置和字体这几个属性进行记录，然后根据窗体改变的大小同时放缩。

简要步骤如下：

1、创建C#窗体程序项目。
2、Panel放置到窗体。
3、设置属性dock为fill。
4、注意MinnumSize不能设置为0， 改成大于0都行。

public partial class FrmDemo : Form  

    {  

        double dFrmWidth;  

        double dFrmHeight;  

        double dZoomHorizon;  

        double dZoomVerticality;  

        Dictionary<string, string> dicControlsAttribute = new Dictionary<string, string>();  

  

        protected void GetAllInitiateContrlInfo(Control CrlContainer)  

        {  

            if (CrlContainer.Parent == this)  

            {  

                dFrmWidth = Convert.ToDouble(CrlContainer.Width);  

                dFrmHeight = Convert.ToDouble(CrlContainer.Height);  

            }  

            foreach (Control item in CrlContainer.Controls)  

            {  

                if (item.Name.Trim() != "")  

                    dicControlsAttribute.Add(item.Name, (item.Left + item.Width / 2) + "," + (item.Top + item.Height / 2)   

                                             + "," + item.Width + "," + item.Height + "," + item.Font.Size);  

                if ((item as UserControl) == null && item.Controls.Count > 0)  

                    GetAllInitiateContrlInfo(item);  

            }  

        }  

  

        private void ChangeControlsInitiate(Control CrlContainer)  

        {  

            dZoomHorizon = (Convert.ToDouble(CrlContainer.Width) / dFrmWidth);  

            dZoomVerticality = (Convert.ToDouble(CrlContainer.Height) / dFrmHeight);  

        }  

          

        private void ChangeCurrentControlAttr(Control CrlContainer)  

        {  

            double[] dPosition = new double[5];  

            foreach (Control item in CrlContainer.Controls)  

            {  

                if (item.Name.Trim() != "")  

                {  

                    if ((item as UserControl) == null && item.Controls.Count > 0)  

                        ChangeCurrentControlAttr(item);  

                    string[] strs = dicControlsAttribute[item.Name].Split(',');  

                    for (int j = 0; j < 5; j++)  

                    {  

                        dPosition[j] = Convert.ToDouble(strs[j]);  

                    }  

                    double itemWidth = dPosition[2] * dZoomHorizon;  

                    double itemHeight = dPosition[3] * dZoomVerticality;  

                    item.Left = Convert.ToInt32(dPosition[0] * dZoomHorizon - itemWidth / 2);  

                    item.Top = Convert.ToInt32(dPosition[1] * dZoomVerticality - itemHeight / 2);  

                    item.Width = Convert.ToInt32(itemWidth);  

                    item.Height = Convert.ToInt32(itemHeight);  

                    //item.Font = new Font(item.Font.Name, float.Parse  

                    //((dPosition[4] * Math.Min(dZoomHorizon, dZoomVerticality)).ToString()));  

                    //字体也可以实现同比放缩。  

                     }  

            }  

        }  

        protected override void OnSizeChanged(EventArgs e)  

        {  

            base.OnSizeChanged(e);  

            if (dicControlsAttribute.Count > 0)  

            {  

                ChangeControlsInitiate(this.Controls[0]);  

                ChangeCurrentControlAttr(this.Controls[0]);  

            }  

        }   

  

        public FrmDemo()  

        {  

            InitializeComponent();  

            GetAllInitiateContrlInfo(this.Controls[0]);//构造函数里面调用即可。  

        }  

}

5、效果测试