KJD/TEMUKJD/UserComponent/DataGridViewEx.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using DevComponents.DotNetBar.Controls;

namespace TemuKJD.UserComponent
{
    public class DataGridViewEx : DataGridView
    {
        public DataGridViewEx()
        {
            BackgroundColor = Color.White;
            AlternatingRowsDefaultCellStyle.BackColor = Color.FromArgb(249, 249, 249);
            RowPostPaint += DataGridViewEx_RowPostPaint;

            this.SetStyle(
                ControlStyles.OptimizedDoubleBuffer |
                ControlStyles.EnableNotifyMessage |
                ControlStyles.ResizeRedraw |
                ControlStyles.AllPaintingInWmPaint,
                true);
        }

        private Color _BorderColor = Color.FromArgb(63, 126, 255);
        /// <summary>
        /// 边框颜色
        /// </summary>
        [Description("边框颜色"), Category("UserProperty")]
        public Color BorderColor
        {
            get
            {
                return _BorderColor;
            }
            set
            {
                if (_BorderColor != value)
                {
                    _BorderColor = value;
                    this.Invalidate();
                }
            }
        }

        /// <summary>
        /// 自动生成行号
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void DataGridViewEx_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
        {
            Rectangle rectangle = new Rectangle(e.RowBounds.Location.X, e.RowBounds.Location.Y, RowHeadersWidth - 4, e.RowBounds.Height);
            TextRenderer.DrawText(e.Graphics, (e.RowIndex + 1).ToString(), RowHeadersDefaultCellStyle.Font, rectangle, Color.DarkGray, TextFormatFlags.VerticalCenter | TextFormatFlags.Right);
        }

        /// <summary>
        /// 绘制边框颜色
        /// </summary>
        /// <param name="e"></param>
        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

            e.Graphics.DrawRectangle(new Pen(this.BackgroundColor), new Rectangle(1, 1, this.Width - 2, this.Height - 2));
            e.Graphics.DrawRectangle(new Pen(this.BorderColor), new Rectangle(0, 0, this.Width - 1, this.Height - 1));
        }
    }
}