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49 lines
1.7 KiB
49 lines
1.7 KiB
using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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namespace Wood.Util
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{
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//public static class DataTableHelper
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//{
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// public static DataTable ListToDataTable<T>(List<T> entitys)
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// {
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// //检查实体集合不能为空
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// if (entitys == null || entitys.Count < 1)
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// {
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// throw new Exception("需转换的集合为空");
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// }
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// //取出第一个实体的所有Propertie
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// Type entityType = entitys[0]!.GetType();
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// PropertyInfo[] entityProperties = entityType.GetProperties();
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// //生成DataTable的structure
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// //生产代码中，应将生成的DataTable结构Cache起来，此处略
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// DataTable dt = new DataTable();
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// for (int i = 0; i < entityProperties.Length; i++)
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// {
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// dt.Columns.Add(entityProperties[i].Name);
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// }
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// //将所有entity添加到DataTable中
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// foreach (object? entity in entitys)
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// {
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// //检查所有的的实体都为同一类型
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// if (entity?.GetType() != entityType)
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// {
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// throw new Exception("要转换的集合元素类型不一致");
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// }
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// object[] entityValues = new object[entityProperties.Length];
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// for (int i = 0; i < entityProperties.Length; i++)
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// {
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// entityValues[i] = entityProperties[i].GetValue(entity, null)!;
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// }
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// dt.Rows.Add(entityValues);
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// }
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// return dt;
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// }
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//}
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}
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