380 lines
13 KiB
C#
380 lines
13 KiB
C#
using OfficeOpenXml;
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.IO;
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using System.Linq;
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using System.Data;
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using System.Text;
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using System.Threading.Tasks;
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using System.Drawing.Drawing2D;
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using System.ComponentModel;
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using OfficeOpenXml.Style;
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namespace JY.Utility
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{
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public class EPPlusExcelHelper : IDisposable
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{
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public ExcelPackage ExcelPackage { get; private set; }
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private Stream fs;
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public EPPlusExcelHelper(string filePath)
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{
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if (File.Exists(filePath))
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{
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var file = new FileInfo(filePath);
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ExcelPackage = new ExcelPackage(file);
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}
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else
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{
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fs = File.Create(filePath);
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ExcelPackage = new ExcelPackage(fs);
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}
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}
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/// <summary>
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/// 将List集合导出到Excel中
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list"></param>
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/// <param name="sheetName"></param>
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public void ExportList<T>(IEnumerable<T> list, string sheetName = "")
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{
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if (string.IsNullOrEmpty(sheetName))
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{
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sheetName = ExcelPackage.File.Name;
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}
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AppendSheetToWorkBook(list, sheetName);
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Save();
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}
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/// <summary>
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/// 将List集合导出到Excel中
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="dt"></param>
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/// <param name="sheetName"></param>
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public void ExportDataTable(string strFileName,DataTable dt)
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{
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AppendSheetToWorkBook(strFileName,dt);
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Save();
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}
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/// <summary>
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/// 获取sheet，没有则创建
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/// </summary>
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/// <param name="sheetName"></param>
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/// <returns></returns>
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public ExcelWorksheet GetOrAddSheet(string sheetName)
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{
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ExcelWorksheet ws = ExcelPackage.Workbook.Worksheets.FirstOrDefault(i => i.Name == sheetName);
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if (ws == null)
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{
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ws = ExcelPackage.Workbook.Worksheets.Add(sheetName);
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}
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return ws;
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}
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/// <summary>
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/// DataTable数据导出到Excel(xlsx)
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/// </summary>
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/// <param name="ExcelPackage">ExcelPackage</param>
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/// <param name="sourceTable">数据源</param>
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public void AppendSheetToWorkBook(string strFileName,DataTable sourceTable)
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{
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AppendSheetToWorkBook(strFileName,sourceTable, true);
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}
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/// <summary>
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/// DataTable数据导出到Excel(xlsx)
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/// </summary>
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/// <param name="ExcelPackage">ExcelPackage</param>
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/// <param name="sourceTable">数据源</param>
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/// <param name="isDeleteSameNameSheet">是否删除同名的sheet</param>
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public void AppendSheetToWorkBook(string strFileName,DataTable sourceTable, bool isDeleteSameNameSheet)
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{
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//创建worksheet
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ExcelWorksheet ws = AddSheet(strFileName, isDeleteSameNameSheet);
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//ExcelWorksheet ws = AddSheet(sourceTable.TableName, isDeleteSameNameSheet);
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//从单元格A1开始，将数据表加载到工作表中。第1行输出列名
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ws.Cells["A1"].LoadFromDataTable(sourceTable, true);
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//格式化Row
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FromatRow(sourceTable.Rows.Count, sourceTable.Columns.Count, ws);
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}
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/// <summary>
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/// 删除指定的sheet
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/// </summary>
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/// <param name="ExcelPackage"></param>
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/// <param name="sheetName"></param>
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public void DeleteSheet(string sheetName)
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{
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var sheet = ExcelPackage.Workbook.Worksheets.FirstOrDefault(i => i.Name == sheetName);
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if (sheet != null)
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{
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ExcelPackage.Workbook.Worksheets.Delete(sheet);
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}
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}
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/// <summary>
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/// 导出列表到excel，已存在同名sheet将删除已存在的
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="ExcelPackage"></param>
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/// <param name="list">数据源</param>
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/// <param name="sheetName">sheet名称</param>
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public void AppendSheetToWorkBook<T>(IEnumerable<T> list, string sheetName)
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{
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AppendSheetToWorkBook(list, sheetName, true);
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}
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/// <summary>
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/// 导出列表到excel，已存在同名sheet将删除已存在的
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="ExcelPackage"></param>
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/// <param name="list">数据源</param>
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/// <param name="sheetName">sheet名称</param>
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/// <param name="isDeleteSameNameSheet">是否删除已存在的同名sheet，false时将重命名导出的sheet</param>
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public void AppendSheetToWorkBook<T>(IEnumerable<T> list, string sheetName, bool isDeleteSameNameSheet)
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{
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ExcelWorksheet ws = AddSheet(sheetName, isDeleteSameNameSheet);
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ws.Cells["A1"].LoadFromCollection(list, true);
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}
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/// <summary>
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/// 添加文字图片
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/// </summary>
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/// <param name="sheet"></param>
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/// <param name="msg">要转换成图片的文字</param>
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public void AddPicture(string sheetName, string msg)
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{
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Bitmap img = GetPictureString(msg);
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var sheet = GetOrAddSheet(sheetName);
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var picName = "92FF5CFE-2C1D-4A6B-92C6-661BDB9ED016";
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var pic = sheet.Drawings.FirstOrDefault(i => i.Name == picName);
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if (pic != null)
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{
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sheet.Drawings.Remove(pic);
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}
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pic = sheet.Drawings.AddPicture(picName, msg);
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pic.SetPosition(3, 0, 6, 0);
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}
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/// <summary>
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/// 文字绘制图片
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/// </summary>
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/// <param name="msg"></param>
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/// <returns></returns>
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private static Bitmap GetPictureString(string msg)
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{
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var msgs = msg.Split(new string[] { System.Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
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var maxLenght = msgs.Max(i => i.Length);
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var rowCount = msgs.Count();
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var rowHeight = 23;
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var fontWidth = 17;
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var img = new Bitmap(maxLenght * fontWidth, rowCount * rowHeight);
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using (Graphics g = Graphics.FromImage(img))
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{
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g.Clear(Color.White);
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Font font = new Font("Arial", 12, (FontStyle.Bold));
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LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(0, 0, img.Width, img.Height), Color.Blue, Color.DarkRed, 1.2f, true);
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for (int i = 0; i < msgs.Count(); i++)
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{
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g.DrawString(msgs[i], font, brush, 3, 2 + rowHeight * i);
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}
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}
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return img;
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}
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/// <summary>
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/// List转DataTable
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="data"></param>
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/// <returns></returns>
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public DataTable ListToDataTable<T>(IEnumerable<T> data)
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{
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PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(typeof(T));
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DataTable dataTable = new DataTable();
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for (int i = 0; i < properties.Count; i++)
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{
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PropertyDescriptor property = properties[i];
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dataTable.Columns.Add(property.Name, Nullable.GetUnderlyingType(property.PropertyType) ?? property.PropertyType);
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}
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object[] values = new object[properties.Count];
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foreach (T item in data)
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{
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for (int i = 0; i < values.Length; i++)
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{
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values[i] = properties[i].GetValue(item);
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}
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dataTable.Rows.Add(values);
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}
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return dataTable;
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}
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/// <summary>
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/// 插入行
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/// </summary>
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/// <param name="sheet"></param>
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/// <param name="values">行类容，一个单元格一个对象</param>
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/// <param name="rowIndex">插入位置，起始位置为1</param>
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public void InsertValues(string sheetName, List<object> values, int rowIndex)
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{
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var sheet = GetOrAddSheet(sheetName);
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sheet.InsertRow(rowIndex, 1);
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int i = 1;
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foreach (var item in values)
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{
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sheet.SetValue(rowIndex, i, item);
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i++;
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}
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}
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/// <summary>
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/// 保存修改
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/// </summary>
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public void Save()
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{
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try
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{
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ExcelPackage.Save();
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ExcelPackage.Stream.Close();
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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/// <summary>
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/// 添加Sheet到ExcelPackage
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/// </summary>
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/// <param name="ExcelPackage">ExcelPackage</param>
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/// <param name="sheetName">sheet名称</param>
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/// <param name="isDeleteSameNameSheet">如果存在同名的sheet是否删除</param>
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/// <returns></returns>
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private ExcelWorksheet AddSheet(string sheetName, bool isDeleteSameNameSheet)
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{
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if (isDeleteSameNameSheet)
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{
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DeleteSheet(sheetName);
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}
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else
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{
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while (ExcelPackage.Workbook.Worksheets.Any(i => i.Name == sheetName))
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{
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sheetName = sheetName + "(1)";
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}
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}
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ExcelWorksheet ws = ExcelPackage.Workbook.Worksheets.Add(sheetName);
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return ws;
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}
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private void FromatRow(int rowCount, int colCount, ExcelWorksheet ws)
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{
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ExcelBorderStyle borderStyle = ExcelBorderStyle.Thin;
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Color borderColor = Color.FromArgb(155, 155, 155);
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using (ExcelRange rng = ws.Cells[1, 1, rowCount + 1, colCount])
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{
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rng.Style.Font.Name = "宋体";
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rng.Style.Font.Size = 10;
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rng.Style.Fill.PatternType = ExcelFillStyle.Solid; //设置图案的背景为Solid
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rng.Style.Fill.BackgroundColor.SetColor(Color.FromArgb(255, 255, 255));
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rng.Style.Border.Top.Style = borderStyle;
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rng.Style.Border.Top.Color.SetColor(borderColor);
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rng.Style.Border.Bottom.Style = borderStyle;
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rng.Style.Border.Bottom.Color.SetColor(borderColor);
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rng.Style.Border.Right.Style = borderStyle;
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rng.Style.Border.Right.Color.SetColor(borderColor);
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}
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// 格式化标题行
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using (ExcelRange rng = ws.Cells[1, 1, 1, colCount])
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{
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rng.Style.Font.Bold = true;
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rng.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
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rng.Style.Fill.BackgroundColor.SetColor(Color.FromArgb(234, 241, 246));
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rng.Style.Font.Color.SetColor(Color.FromArgb(51, 51, 51));
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}
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}
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/// <summary>
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/// <summary>
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/// 导入Excel(EPPlus只支持.xlsx)
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/// </summary>
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/// <param name="sheetindex">第几个Sheet</param>
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/// <returns></returns>
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public DataTable ImportExcel(int sheetindex = 1)
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{
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DataSet ds = new DataSet();
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using (ExcelWorksheet worksheet = ExcelPackage.Workbook.Worksheets[sheetindex])
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{
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if (worksheet.Dimension == null)
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{
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return null;
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}
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DataTable table = new DataTable(worksheet.Name);
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for (int rowNum = 1; rowNum <= worksheet.Dimension.End.Row; rowNum++)
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{
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#region 创建列
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if (table.Columns.Count == 0)
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{
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#region 第一行数据作为表头
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for (int columnNum = 1; columnNum <= worksheet.Dimension.End.Column; columnNum++)
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{
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table.Columns.Add(worksheet.Cells[rowNum, columnNum].Value.ToString().Trim(), typeof(string));
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}
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continue;
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#endregion
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}
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#endregion
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#region 新增行
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DataRow dr = table.NewRow();
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for (int columnNum = 1; columnNum <= table.Columns.Count; columnNum++)
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{
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if (worksheet.Cells[rowNum, columnNum].Value==null)
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{
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dr[columnNum - 1] =string.Empty;
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}
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else
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{
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dr[columnNum - 1] = worksheet.Cells[rowNum, columnNum].Value.ToString().Trim();
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}
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}
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table.Rows.Add(dr);
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#endregion
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}
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return table;
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}
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}
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public void Dispose()
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{
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ExcelPackage.Dispose();
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if (fs != null)
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{
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fs.Dispose();
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fs.Close();
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}
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}
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}
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}
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