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C#画表格

下面给一个简单的例子,至于多个单元格合并,请自己去实现,也就是坐标计算的事情。

至于画图,用GDI,还是DirectX画,自己选择,不过这里主要讲的是算法:坐标计算以及画的过程。

注意不要每个列都画一个矩形,很浪费的,因为都重叠了。

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using System;
using System.Drawing;
using System.Windows.Forms;
 
namespace GDITableDemo {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }
 
        private void button1_Click(object sender, EventArgs e) {
            string[] columns = textBox1.Text.Split(‘,‘);
 
            Font font = panel1.Font;//字体
            Brush color = Brushes.Black;//颜色
            Brush border = new SolidBrush(panel1.ForeColor);//用前景色画边框
            Pen borderStyle =new Pen(border, 1);
             
            //从什么位置开始画
            float top = 0F;//Y坐标
            float left = 0F;//X坐标
            //画笔X坐标偏移量,left1:最后一次位置,left2当前最远位置
            float left1 = left, left2 = 0F;
            float textLeft=0F;//文本X坐标
            float textTop = 0F;//文本Y坐标
            float textWidth=0F;//文本宽度
            float textHeight=0F;//文本高度
            const float columnHeight = 30F;//行高,包括边框在内
            const float columnPadding = 10F;//每一列左右多出10像素
 
            Graphics g = Graphics.FromHwnd(panel1.Handle);
            textHeight = font.GetHeight(g);//高
            textTop = (columnHeight - textHeight) / 2;//上边
            for (int i = 0; i < columns.Length; i++) {
                //先计算文本
                textWidth= g.MeasureString(columns[i],font).Width;//宽
                textLeft = left1 + columnPadding;//左边
                left2=textLeft+textWidth+columnPadding;
 
                //先画左边框
                g.DrawLine(borderStyle, left1, top, left1, columnHeight);
 
                //画文字
                g.DrawString(columns[i], font, color, textLeft, textTop);
                //注意左边的位置要开始偏移了
                left1 = left2;
            }
            g.DrawLine(borderStyle, left, top, left2, top);//上边框
            g.DrawLine(borderStyle, left, columnHeight, left2, columnHeight);//下边框
            g.DrawLine(borderStyle, left2, top, left2, columnHeight);//右边框
 
        }
    }
}