基础教程之导出Excel

Install-Package Magicodes.IE.Excel

     public async Task ExportHeader()
        {
            IExcelExporter exporter = new ExcelExporter();

            var filePath = "h.xlsx";
            var arr = new[] { "Name1", "Name2", "Name3", "Name4", "Name5", "Name6" };
            var sheetName = "Test";
            var result = await exporter.ExportHeaderAsByteArray(arr, sheetName);
            result.ToExcelExportFileInfo(filePath);

        }

        public async Task ExportHeader()
        {
            IExporter exporter = new ExcelExporter();

            var filePath = "h.xlsx";
            var result = await exporter.ExportHeaderAsByteArray<Student>( new Student());
            result.ToExcelExportFileInfo(filePath);

        }

      
        public class Student
        {
            /// <summary>
            ///     姓名
            /// </summary>
            public string Name { get; set; }
            /// <summary>
            ///     年龄
            /// </summary>
            public int Age { get; set; }
        }

        public async Task Export()
        {
            IExporter exporter = new ExcelExporter();
            var result = await exporter.Export("a.xlsx", new List<Student>()
                {
                    new Student
                    {
                        Name = "MR.A",
                        Age = 18
                    },
                    new Student
                    {
                        Name = "MR.B",
                        Age = 19
                    },
                    new Student
                    {
                        Name = "MR.B",
                        Age = 20
                    }
                });
        }

        public async Task Export()
        {
            IExporter exporter = new ExcelExporter();
            var result = await exporter.Export("test.xlsx", new List<Student>()
                {
                    new Student
                    {
                        Name = "MR.A",
                        Age = 18,
                        Remarks = "我叫MR.A,今年18岁",
                        Birthday=DateTime.Now
                    },
                    new Student
                    {
                        Name = "MR.B",
                        Age = 19,
                        Remarks = "我叫MR.B,今年19岁",
                        Birthday=DateTime.Now
                    },
                    new Student
                    {
                        Name = "MR.C",
                        Age = 20,
                        Remarks = "我叫MR.C,今年20岁",
                        Birthday=DateTime.Now
                    }
                });
        }
        /// <summary>
        ///     学生信息
        /// </summary>
        [ExcelExporter(Name = "学生信息", TableStyle = "Light10", AutoFitAllColumn = true, MaxRowNumberOnASheet = 2)]
        public class Student
        {
            /// <summary>
            ///     姓名
            /// </summary>
            [ExporterHeader(DisplayName = "姓名")]
            public string Name { get; set; }
            /// <summary>
            ///     年龄
            /// </summary>
            [ExporterHeader(DisplayName = "年龄")]
            public int Age { get; set; }
            /// <summary>
            ///     备注
            /// </summary>
            public string Remarks { get; set; }
            /// <summary>
            ///     出生日期
            /// </summary>
            [ExporterHeader(DisplayName = "出生日期", Format = "yyyy-mm-DD")]
            public DateTime Birthday { get; set; }
        }

        /// <summary>
        ///     学生信息
        /// </summary>
        [ExcelExporter(Name = "学生信息", TableStyle = "Light10", AutoFitAllColumn = true, MaxRowNumberOnASheet = 2,ExporterHeaderFilter = typeof(ExporterStudentHeaderFilter))]
        public class Student
        {
            /// <summary>
            ///     姓名
            /// </summary>
            [ExporterHeader(DisplayName = "姓名")]
            public string Name { get; set; }
            /// <summary>
            ///     年龄
            /// </summary>
            [ExporterHeader(DisplayName = "年龄",Format = "#,##0")]
            public int Age { get; set; }
            /// <summary>
            ///     备注
            /// </summary>
            public string Remarks { get; set; }
        }

        
        public class ExporterStudentHeaderFilter : IExporterHeaderFilter
        {
            /// <summary>
            /// 表头筛选器（修改名称）
            /// </summary>
            /// <param name="exporterHeaderInfo"></param>
            /// <returns></returns>
            public ExporterHeaderInfo Filter(ExporterHeaderInfo exporterHeaderInfo)
            {
                if (exporterHeaderInfo.DisplayName.Equals("姓名"))
                {
                    exporterHeaderInfo.DisplayName = "name";
                }
                return exporterHeaderInfo;
            }
        }

	class Program
    {
        static async Task Main(string[] args)
        {
            IExporter exporter = new ExcelExporter();
            // 生成测试数据
            var personList = GenFu.GenFu.ListOf<Person>();

            // 导出一个只包含"FirstName", "LastName"列的excel
            string fields = "FirstName,LastName"; // 可自定义导出想要的字段
            var expandoObjectList = new List<ExpandoObject>(personList.Count);
            var propertyInfoList = new List<PropertyInfo>();
            var fieldsAfterSplit = fields.Split(',');
            foreach (var field in fieldsAfterSplit)
            {
                var propertyName = field.Trim();
                var propertyInfo = typeof(Person).GetProperty(propertyName);

                if (propertyInfo == null)
                {
                    throw new Exception($"Property: {propertyName} 没有找到：{typeof(Person)}");
                }

                propertyInfoList.Add(propertyInfo);
            }

            foreach (var person in personList)
            {
                var shapedObj = new ExpandoObject();

                foreach (var propertyInfo in propertyInfoList)
                {
                    var propertyValue = propertyInfo.GetValue(person);
                    ((IDictionary<string, object>)shapedObj).Add(propertyInfo.Name, propertyValue);
                }

                expandoObjectList.Add(shapedObj);
            }

            string filePath = Path.Combine(Directory.GetCurrentDirectory(), "dynamicExportExcel.xlsx");
            var result = await exporter.ExportAsByteArray<ExpandoObject>(expandoObjectList);
            File.WriteAllBytes(filePath, result);
        }
    }


    class Person
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Title { get; set; }
        public int Age { get; set; }
        public int NumberOfKids { get; set; }
    }

[ValueMapping(text: "yes", true)]
[ValueMapping(text: "no", false)]
[ValueMapping(text: "小微客户", 0)]