Files
HTCloud/HT.Cloud.Code/Extend/Ext.dataTable.cs
2023-03-03 16:07:50 +08:00

125 lines
4.2 KiB
C#
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

using System;
using System.Collections.Generic;
using System.Data;
using System.Reflection;
namespace HT.Cloud.Code
{
public static class DataTableExtends
{
public static List<Dictionary<string, object>> DataTabletoList(this DataTable dt)
{
List<Dictionary<string, object>> list = new List<Dictionary<string, object>>();
foreach (DataRow dr in dt.Rows)//每一行信息新建一个Dictionary<string,object>,将该行的每列信息加入到字典
{
Dictionary<string, object> result = new Dictionary<string, object>();
foreach (DataColumn dc in dt.Columns)
{
result.Add(dc.ColumnName, dr[dc].ToString());
}
list.Add(result);
}
return list;
}
}
public class DataTableConvertModel<T> where T : new()
{
public static List<T> ConvertDataTableToList(DataTable dt)
{
// 定义集合
List<T> ts = new List<T>();
// 获得此模型的类型
Type type = typeof(T);
string tempName = "";
foreach (DataRow dr in dt.Rows)
{
T t = new T();
// 获得此模型的公共属性
PropertyInfo[] propertys = t.GetType().GetProperties();
foreach (PropertyInfo pi in propertys)
{
tempName = pi.Name; // 检查DataTable是否包含此列
if (dt.Columns.Contains(tempName))
{
// 判断此属性是否有Setter
if (!pi.CanWrite) continue;
object value = dr[tempName];
if (value != DBNull.Value)
pi.SetValue(t, value, null);
}
}
ts.Add(t);
}
return ts;
}
public static IList<T> ConvertDataTableToIList(DataTable dt)
{
// 定义集合
IList<T> ts = new List<T>();
// 获得此模型的类型
Type type = typeof(T);
string tempName = "";
foreach (DataRow dr in dt.Rows)
{
T t = new T();
// 获得此模型的公共属性
PropertyInfo[] propertys = t.GetType().GetProperties();
foreach (PropertyInfo pi in propertys)
{
tempName = pi.Name; // 检查DataTable是否包含此列
if (dt.Columns.Contains(tempName))
{
// 判断此属性是否有Setter
if (!pi.CanWrite) continue;
object value = dr[tempName];
if (value != DBNull.Value)
pi.SetValue(t, value, null);
}
}
ts.Add(t);
}
return ts;
}
public static T ConvertDataTableToModel(DataTable dt)
{
if (dt == null) return default(T);
// 定义集合
// 获得此模型的类型
Type type = typeof(T);
string tempName = "";
T t = new T();
if (dt.Rows.Count > 0)
{
var dr = dt.Rows[0];
// 获得此模型的公共属性
PropertyInfo[] propertys = t.GetType().GetProperties();
foreach (PropertyInfo pi in propertys)
{
tempName = pi.Name; // 检查DataTable是否包含此列
if (dt.Columns.Contains(tempName))
{
// 判断此属性是否有Setter
if (!pi.CanWrite) continue;
object value = dr[tempName];
if (value != DBNull.Value)
pi.SetValue(t, value, null);
}
}
return t;
}
else
return default(T);
}
}
}