602_WGJ/JinYuan.Helper/DataGridViewHelper.cs

using System;
using System.Drawing;
using System.Reflection;
using System.Windows.Forms;

namespace JinYuan.Helper
{
    public static class DataGridViewHelper
    {
        /// <summary>
        /// 给DataGridView添加行号
        /// </summary>
        /// <param name="dgv">dgv控件</param>
        /// <param name="e">dgv参数</param>
        public static void DgvRowPostPaint(DataGridView dgv, DataGridViewRowPostPaintEventArgs e)
        {
            try
            {
                //添加行号 
                SolidBrush solidBrush = new SolidBrush(dgv.RowHeadersDefaultCellStyle.ForeColor);
                string lineNo = (e.RowIndex + 1).ToString();
                e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;

                StringFormat sf = new StringFormat();
                sf.LineAlignment = StringAlignment.Center;
                sf.Alignment = StringAlignment.Center;
                e.Graphics.DrawString(lineNo, e.InheritedRowStyle.Font, solidBrush, new Rectangle(e.RowBounds.Location.X, e.RowBounds.Location.Y, dgv.RowHeadersWidth, dgv.RowTemplate.Height), sf);
            }
            catch (Exception ex)
            {
                MessageBox.Show("添加行号时发生错误，错误信息：" + ex.Message, "操作失败");
            }
        }

        /// <summary>
        /// 给DataGridView指定列改变前景色
        /// </summary>
        /// <param name="dgv"></param>
        /// <param name="e"></param>
        public static void DgvRowPrePaint(DataGridView dgv, string Column, object sender, DataGridViewRowPrePaintEventArgs e)
        {

            if (e.RowIndex >= dgv.Rows.Count - 1)
                return;
            DataGridViewRow dr = (sender as DataGridView).Rows[e.RowIndex];

            try
            {
                if (dr.Cells[Column].Value != null)
                {
                    if (dr.Cells[Column].Value.Equals("OK"))
                    {
                        // 设置单元格的背景色
                        //dr.Cells[Column].Style.BackColor = Color.LightGreen;

                        // 设置单元格的前景色
                        dr.Cells[Column].Style.ForeColor = Color.LightGreen;
                    }
                    else
                    {
                        //dr.Cells[Column].Style.BackColor = Color.Red;
                        dr.Cells[Column].Style.ForeColor = Color.Red;
                    }
                }

            }
            catch (Exception ex)
            {
                MessageBox.Show("更改状态时发生错误，错误信息：" + ex.Message, "操作失败");

            }
        }

        /// <summary>
        /// 给DataGridView绘制边框
        /// </summary>
        /// <param name="dgv">dgv控件</param>
        /// <param name="e">dgv参数</param>
        public static void DgvRowPaint(DataGridView dgv, PaintEventArgs e, Color borderColor)
        {
            e.Graphics.DrawRectangle(new Pen(borderColor), new Rectangle(0, 0, dgv.Width - 1, dgv.Height - 1));
        }

        /// <summary>
        /// 奇偶换色
        /// </summary>        
        public static void DgvStyle(DataGridView dgv, Color defaultBackColor, Color alternatingBackColor, Color gridColor)
        {
            //奇数行的背景色
            dgv.AlternatingRowsDefaultCellStyle.BackColor = alternatingBackColor;
            dgv.AlternatingRowsDefaultCellStyle.SelectionBackColor = alternatingBackColor;

            //默认的行样式
            dgv.RowsDefaultCellStyle.BackColor = defaultBackColor;
            dgv.RowsDefaultCellStyle.SelectionBackColor = defaultBackColor;


            dgv.RowHeadersDefaultCellStyle.BackColor = defaultBackColor;
            dgv.RowHeadersDefaultCellStyle.SelectionBackColor = defaultBackColor;

            //数据网格颜色
            dgv.GridColor = gridColor;
        }




        /// <summary>
        /// 双缓冲，解决闪烁问题
        /// </summary>
        /// <param name="dgv"></param>
        /// <param name="flag"></param>
        public static void DoubleBufferedDataGirdView(this DataGridView dgv, bool flag)
        {
            Type dgvType = dgv.GetType();
            PropertyInfo pi = dgvType.GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic);
            pi.SetValue(dgv, flag, null);
        }


        /// <summary>
        /// 双缓冲，解决闪烁问题
        /// </summary>
        /// <param name="lv"></param>
        /// <param name="flag"></param>
        public static void DoubleBufferedListView(this ListView lv, bool flag)
        {
            Type lvType = lv.GetType();
            PropertyInfo pi = lvType.GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic);
            pi.SetValue(lv, flag, null);
        }

        public static void DoubleBufferedListBox(this ListBox lb, bool flag)
        {
            Type lvType = lb.GetType();
            PropertyInfo pi = lvType.GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic);
            pi.SetValue(lb, flag, null);
        }
    }
}