From e3452df14feffcd60dac7c5e4d280471c2c7cd51 Mon Sep 17 00:00:00 2001
From: qd98zhq <249321675@qq.com>
Date: Tue, 8 Dec 2020 11:00:20 +0800
Subject: [PATCH] =?UTF-8?q?update=20framework/Furion/DatabaseAccessor/Exte?=
 =?UTF-8?q?nsions/DatabaseFacade/DbDataConvertExtensions.cs.=20=E6=8A=8ALi?=
 =?UTF-8?q?st<T>=E8=BD=AC=E6=8D=A2=E4=B8=BADataTable?=
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---
 .../DatabaseFacade/DbDataConvertExtensions.cs | 48 ++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/framework/Furion/DatabaseAccessor/Extensions/DatabaseFacade/DbDataConvertExtensions.cs b/framework/Furion/DatabaseAccessor/Extensions/DatabaseFacade/DbDataConvertExtensions.cs
index 4247f07e3a..ed9e9b2724 100644
--- a/framework/Furion/DatabaseAccessor/Extensions/DatabaseFacade/DbDataConvertExtensions.cs
+++ b/framework/Furion/DatabaseAccessor/Extensions/DatabaseFacade/DbDataConvertExtensions.cs
@@ -1,4 +1,4 @@
-using Furion.DependencyInjection;
+using Furion.DependencyInjection;
 using Furion.Extensions;
 using Mapster;
 using System;
@@ -329,5 +329,51 @@ namespace Furion.DatabaseAccessor
         {
             return Task.FromResult(dataTable.ToList(returnType));
         }
+
+        #region 把List<T>转换为DataTable
+        /// <summary>
+        /// 把List<T>转换为DataTable
+        /// </summary>
+        /// <typeparam name="T">数据实体模型</typeparam>
+        /// <param name="items">实体列表</param>
+        /// <param name="sourceTable">源结构表</param>
+        /// <returns></returns>
+        public static DataTable ToDataTable<T>(this ICollection<T> items,DataTable sourceTable)
+        {
+            if(sourceTable==null)
+                sourceTable = new DataTable();
+            
+            PropertyInfo[] Props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
+            foreach (PropertyInfo prop in Props)
+            {
+                DataColumn col = new DataColumn();
+                col.ColumnName = prop.Name;
+                col.DataType = prop.PropertyType;
+                sourceTable.Columns.Add(col);
+            }
+
+            foreach (T obj in items)
+            {
+                //DataRow newRow = sourceTable.NewRow();
+                //for (int i = 0; i < Props.Length; i++)
+                //{
+                //    PropertyInfo prop = Props[i];
+                //    if(sourceTable.Columns.Contains(prop.Name))
+                //        newRow[prop.Name] = Props[i].GetValue(obj, null);
+                //}
+                //sourceTable.Rows.Add(newRow);
+
+                //快速模式
+                var values = new object[Props.Length];
+                for (int i = 0; i < Props.Length; i++)
+                {
+                    values[i] = Props[i].GetValue(obj, null);
+                }
+                sourceTable.Rows.Add(values);
+            }
+
+            return sourceTable;
+        }
+        #endregion
     }
 }
\ No newline at end of file
-- 
Gitee