Add List to DataTable

Src/Asp.Net/SqlSugar/Infrastructure/ContextMethods.cs

@@ -536,6 +536,37 @@ namespace SqlSugar
             }
             return this.DeserializeObject<List<T>>(this.SerializeObject(deserializeObject));
         }
+        public  DataTable ListToDataTable<T>(List<T> list)
+        {
+            DataTable result = new  DataTable();
+            if (list.Count > 0)
+            {
+                PropertyInfo[] propertys = list[0].GetType().GetProperties();
+                foreach (PropertyInfo pi in propertys)
+                {
+                    //获取类型
+                    Type colType = pi.PropertyType;
+                    //当类型为Nullable<>时
+                    if ((colType.IsGenericType) && (colType.GetGenericTypeDefinition() == typeof(Nullable<>)))
+                    {
+                        colType = colType.GetGenericArguments()[0];
+                    }
+                    result.Columns.Add(pi.Name, colType);
+                }
+                for (int i = 0; i < list.Count; i++)
+                {
+                    ArrayList tempList = new ArrayList();
+                    foreach (PropertyInfo pi in propertys)
+                    {
+                        object obj = pi.GetValue(list[i], null);
+                        tempList.Add(obj);
+                    }
+                    object[] array = tempList.ToArray();
+                    result.LoadDataRow(array, true);
+                }
+            }
+            return result;
+        }
         public Dictionary<string, object> DataTableToDictionary(DataTable table)
         {
            return table.Rows.Cast<DataRow>().ToDictionary(x => x[0].ToString(), x => x[1]);

Src/Asp.Net/SqlSugar/Interface/IContextMethods.cs

@@ -27,6 +27,7 @@ namespace SqlSugar
         SqlSugarProvider CopyContext(bool isCopyEvents = false);
         dynamic DataTableToDynamic(DataTable table);
         List<T> DataTableToList<T>(DataTable table);
+        DataTable ListToDataTable<T>(List<T> list);
         Dictionary<string, object> DataTableToDictionary(DataTable table);
         ICacheService GetReflectionInoCacheInstance();
         void RemoveCacheAll();