C# excel操作

使用库

Spire.Xls

下载

示例数据

代码示例

1.删除列

代码

        private static void DeleteExcelColumns1(string excelPath) {if (excelPath.Length == 0) {Console.WriteLine("excel文件路径为空");}else{Console.WriteLine("删除列方法1：保留第一列，删除其他列");Workbook workbook = new Workbook();workbook.LoadFromFile(excelPath);//获取第一张工作表Worksheet sheet = workbook.Worksheets[0];int ColumnsLength = sheet.Columns.Count();//删除除了第一行以外的其他列，因为删除的操作是在上一步的结果上进行的操作for (int i = 2; i <= ColumnsLength; i++){sheet.DeleteColumn(2);}//设置数据自适应列宽sheet.AllocatedRange.AutoFitColumns();//修改后的保存为csv文件sheet.SaveToFile(Path.GetDirectoryName(excelPath)+"/删除列方法1"+Path.GetFileNameWithoutExtension(excelPath)+".csv", ",", Encoding.UTF8);}           }private static void DeleteExcelColumns2(string excelPath){if (excelPath.Length == 0){Console.WriteLine("excel文件路径为空");}else{Console.WriteLine("删除列方法2：保留第一列，删除其他列");Workbook workbook = new Workbook();workbook.LoadFromFile(excelPath);//获取第一张工作表Worksheet sheet = workbook.Worksheets[0];sheet.DeleteColumn(2,9);//设置数据自适应列宽sheet.AllocatedRange.AutoFitColumns();//修改后的保存为csv文件sheet.SaveToFile(Path.GetDirectoryName(excelPath) + "/删除列方法2" + Path.GetFileNameWithoutExtension(excelPath) + ".csv", ",", Encoding.UTF8);}}

结果

2.删除行

代码

        private static void DeleteExcelRow1(string excelPath){if (excelPath.Length == 0){Console.WriteLine("excel文件路径为空");}else{Console.WriteLine("删除行方法1：保留第一行，删除其他行");Workbook workbook = new Workbook();workbook.LoadFromFile(excelPath);//获取第一张工作表Worksheet sheet = workbook.Worksheets[0];int ColumnsLength = sheet.Rows.Count();//删除除了第一行以外的其他列，因为删除的操作是在上一步的结果上进行的操作for (int i = 2; i <= ColumnsLength; i++){sheet.DeleteRow(2);}//设置数据自适应列宽sheet.AllocatedRange.AutoFitColumns();//修改后的保存为csv文件sheet.SaveToFile(Path.GetDirectoryName(excelPath) + "/删除行方法1" + Path.GetFileNameWithoutExtension(excelPath) + ".csv", ",", Encoding.UTF8);}}private static void DeleteExcelRow2(string excelPath){if (excelPath.Length == 0){Console.WriteLine("excel文件路径为空");}else{Console.WriteLine("删除行方法2：保留第一行，删除其他行");Workbook workbook = new Workbook();workbook.LoadFromFile(excelPath);//获取第一张工作表Worksheet sheet = workbook.Worksheets[0];sheet.DeleteRow(2, 9);//设置数据自适应列宽sheet.AllocatedRange.AutoFitColumns();//修改后的保存为csv文件sheet.SaveToFile(Path.GetDirectoryName(excelPath) + "/删除行方法2" + Path.GetFileNameWithoutExtension(excelPath) + ".csv", ",", Encoding.UTF8);}}private static void DeleteExcelRow3(string excelPath){if (excelPath.Length == 0){Console.WriteLine("excel文件路径为空");}else{Console.WriteLine("删除行方法3：保留第一行，删除其他行");Workbook workbook = new Workbook();workbook.LoadFromFile(excelPath);//获取第一张工作表Worksheet sheet = workbook.Worksheets[0];int[] delrows = { 2, 3 ,4,5,6,7,8,9,10};sheet.DeleteRows(delrows);//设置数据自适应列宽sheet.AllocatedRange.AutoFitColumns();//修改后的保存为csv文件sheet.SaveToFile(Path.GetDirectoryName(excelPath) + "/删除行方法3" + Path.GetFileNameWithoutExtension(excelPath) + ".csv", ",", Encoding.UTF8);}}

结果

修改表

代码

        private static void ChangeExcelHeader1(string excelPath){if (excelPath.Length == 0){Console.WriteLine("excel文件路径为空");}else{Console.WriteLine("修改表头");Workbook workbook = new Workbook();workbook.LoadFromFile(excelPath);//获取第一张工作表Worksheet sheet = workbook.Worksheets[0];string value0 = sheet.Cells[0].Value;Console.WriteLine(value0);string value11 = sheet.Cells[11].Value;Console.WriteLine(value11);sheet.Cells[1].Value = "12";string valuesA1 = sheet.Range["A1"].Value;Console.WriteLine(valuesA1);sheet.Range["C1"].Value = "13";//设置数据自适应列宽sheet.AllocatedRange.AutoFitColumns();//修改后的保存为csv文件sheet.SaveToFile(Path.GetDirectoryName(excelPath) + "/修改表头" + Path.GetFileNameWithoutExtension(excelPath) + ".csv", ",", Encoding.UTF8);}}