C#中listView列自动适应缩放的完美效果

2021-05-29 06:01

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标签:ref   datetime   +=   ==   网上   ret   eve   reac   完美   

在网上搜了很多办法,包括width=-1、-2,效果都不理想。自己摸索了个办法:

1:设计时,先把各列尺寸大体上调好;

技术图片

 

2:启动时记下来各列width所占的比例。

public class colSizes : Listdouble> { };
public colSizes[] grdSizes = new colSizes[3];
public DateTime dBegin = DateTime.Today;

////////
loadSizes(grd_ing, ref grdSizes[0]);
loadSizes(grd_hege, ref grdSizes[1]);
loadSizes(grd_buhege, ref grdSizes[2]);



///////////
        private void loadSizes(ListView grd, ref colSizes cs)
        {   //记住比例
            if (cs == null) cs = new colSizes();
            cs.Clear();
            double nAll = 0;
            foreach (ColumnHeader itm in grd.Columns) nAll += itm.Width;
            foreach (ColumnHeader itm in grd.Columns) cs.Add(itm.Width / nAll);
        }

 

 

3:resize时按比例重新设置一遍各列的width.

private void setAutoSize(ListView grd, colSizes cs)
        {   //自动适应宽度,-1根据内容设置宽度,-2根据标题设置宽度
            if (cs == null) return;
            for (int i = 0; i )
                grd.Columns[i].Width = (int)Math.Round(grd.ClientSize.Width * cs[i], 0);
        }

private void FrmView_Resize(object sender, EventArgs e)
        {
            setAutoSize(grd_ing, grdSizes[0]);
            setAutoSize(grd_hege, grdSizes[1]);
            setAutoSize(grd_buhege, grdSizes[2]);
        }

 

效果相当完美,按比例缩放

 

C#中listView列自动适应缩放的完美效果

标签:ref   datetime   +=   ==   网上   ret   eve   reac   完美   

原文地址:https://www.cnblogs.com/HaiHong/p/11106206.html


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