日期格式化支持DateTimeOffset类型

src/Magicodes.ExporterAndImporter.Core/Extension/ObjectExtension.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Magicodes.ExporterAndImporter.Core.Extension
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public static class ObjectExtension
+    {
+        /// <summary>
+        /// 将 DateTimeOffset 转换成本地 DateTime
+        /// </summary>
+        /// <param name="dateTime"></param>
+        /// <returns></returns>
+        public static DateTime ConvertToDateTime(this DateTimeOffset dateTime)
+        {
+            if (dateTime.Offset.Equals(TimeSpan.Zero))
+                return dateTime.UtcDateTime;
+            if (dateTime.Offset.Equals(TimeZoneInfo.Local.GetUtcOffset(dateTime.DateTime)))
+                return dateTime.ToLocalTime().DateTime;
+            else
+                return dateTime.DateTime;
+        }
+
+        /// <summary>
+        /// 将 DateTimeOffset? 转换成本地 DateTime?
+        /// </summary>
+        /// <param name="dateTime"></param>
+        /// <returns></returns>
+        public static DateTime? ConvertToDateTime(this DateTimeOffset? dateTime)
+        {
+            return dateTime.HasValue ? (DateTime?)dateTime.Value.ConvertToDateTime() : null;
+        }
+    }
+}

src/Magicodes.ExporterAndImporter.Excel/Utility/ExportHelper.cs

@@ -748,6 +748,46 @@ protected virtual IEnumerable<ExpandoObject> ParseData(ICollection<T> dataItems)
                                     }
                                 }
                                 break;
+                            case "DateTimeOffset":
+                                {
+                                    var col = ExporterHeaderList.First(a => a.PropertyName == propertyInfo.Name);
+                                    var val = type.GetProperty(propertyInfo.Name)?.GetValue(dataItem).ToString();
+                                    DateTime value = DateTimeOffset.Parse(val).ConvertToDateTime();
+                                    if (col.MappingValues.Count > 0 && col.MappingValues.ContainsValue(value))
+                                    {
+                                        var mapValue = col.MappingValues.FirstOrDefault(f => f.Value.ToString() == value.ToString());
+                                        ((IDictionary<string, object>)obj)[propertyInfo.Name] = mapValue.Key;
+                                    }
+                                    else
+                                    {
+                                        ((IDictionary<string, object>)obj)[propertyInfo.Name] = value;
+                                    }
+                                }
+                                break;
+                            case "Nullable<DateTimeOffset>":
+                                {
+                                    var col = ExporterHeaderList.First(a => a.PropertyName == propertyInfo.Name);
+                                    var objValue = type.GetProperty(propertyInfo.Name)?.GetValue(dataItem);
+                                    if (objValue == null)
+                                    {
+                                        ((IDictionary<string, object>)obj)[propertyInfo.Name] = null;
+                                    }
+                                    else
+                                    {
+                                        var dateValue = ((DateTimeOffset?)(objValue)).ConvertToDateTime();
+                                        if (dateValue.HasValue && col.MappingValues.Count > 0 && col.MappingValues.ContainsValue(dateValue))
+                                        {
+                                            var mapValue = col.MappingValues.FirstOrDefault(f => f.Value == dateValue);
+                                            ((IDictionary<string, object>)obj)[propertyInfo.Name] = mapValue.Key;
+                                        }
+                                        else
+                                        {
+                                            ((IDictionary<string, object>)obj)[propertyInfo.Name] = dateValue;
+                                        }
+
+                                    }
+                                }
+                                break;
                             default:
                                 ((IDictionary<string, object>)obj)[propertyInfo.Name] = type.GetProperty(propertyInfo.Name)
                             ?.GetValue(dataItem);

src/Magicodes.ExporterAndImporter.Tests/MagicodesFilter_Tests.cs

@@ -137,7 +137,7 @@ public async Task XlsxHttpContentMediaType_AttrsExport_Test()
                 sheet.Tables.Count.ShouldBe(1);
 
                 var tb = sheet.Tables.First();
-                tb.Columns.Count.ShouldBe(9);
+                tb.Columns.Count.ShouldBe(11);
                 tb.Columns.First().Name.ShouldBe("加粗文本");
             }
         }

src/Magicodes.ExporterAndImporter.Tests/MagicodesMiddleware_Tests.cs

@@ -156,7 +156,7 @@ public async Task XlsxHttpContentMediaType_AttrsExport_Test()
                 sheet.Tables.Count.ShouldBe(1);
 
                 var tb = sheet.Tables.First();
-                tb.Columns.Count.ShouldBe(9);
+                tb.Columns.Count.ShouldBe(11);
                 tb.Columns.First().Name.ShouldBe("加粗文本");
             }
         }

src/MagicodesWebSite/ExportTestDataWithAttrs.cs

@@ -35,6 +35,18 @@ public class ExportTestDataWithAttrs
 
         public DateTime Time4 { get; set; }
 
+        /// <summary>
+        /// 时间测试
+        /// </summary>
+        [ExporterHeader(DisplayName = "日期5", Format = "yyyy-MM-dd")]
+        public DateTimeOffset Time5 { get; set; }
+
+        /// <summary>
+        /// 时间测试
+        /// </summary>
+        [ExporterHeader(DisplayName = "日期6", Format = "yyyy-MM-dd")]
+        public DateTimeOffset? Time6 { get { return DateTimeOffset.Now; } }
+
         /// <summary>
         /// 长数值测试
         /// </summary>