C#实现窗体中的各个控件同比自动放缩大小

• Z时代
• 2024-01-10
• 分类：综合

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

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