DataTable转换成IList 【转载】

2013-08-28 18:30 by 糯米粥, 43 阅读, 0 评论, 收藏, 编辑

链接：http://www.cnblogs.com/hlxs/archive/2011/05/09/2087976.html#2738813 留着学习

using System;
using System.Collections.Generic;
using System.Collections;
using System.Data;

namespace CTHFramework
{

/// <summary>
/// DataTable转换成IList
/// </summary>
/// <typeparam name="T"></typeparam>
public class TableToList<T> where T : class, new()
{
public static IList<T> ToList(DataTable dt, Func<DataRow, T> func)
{
if (dt == null || dt.Rows.Count == 0)
{
return null;
}
IList<T> list = new List<T>(dt.Rows.Count);
foreach (DataRow dr in dt.Rows)
{
list.Add(func(dr));
}
return list;
}
}

public class DataItem
{
public int ID
{
get;
set;
}

public string Name
{
get;
set;
}

public override string ToString()
{
return string.Format("ID:{0},Name:{1}", ID.ToString(), Name);
}
}

static class Program
{
static void Main(string[] args)
{
DataTable dt = new DataTable();
dt.Columns.Add(new DataColumn("ID", typeof(int)));
dt.Columns.Add(new DataColumn("Name", typeof(string)));
for (int i = 0; i < 10; i++)
{
DataRow dr = dt.NewRow();
dr["ID"] = i.ToString();
dr["Name"] = "Name" + i.ToString();
dt.Rows.Add(dr);
}

IList<DataItem> list = TableToList<DataItem>.ToList(dt, DataRowToDataItem);
foreach (var item in list)
{
Console.WriteLine(item.ToString());
}
Console.Read();
}

static DataItem DataRowToDataItem(DataRow dr)
{
return new DataItem { ID = Convert.ToInt32(dr["ID"]), Name = dr["Name"].ToString() };
}

}
}

2013-08-28 18:30 by 糯米粥, 43 阅读, 0 评论, 收藏, 编辑

链接：http://www.cnblogs.com/hlxs/archive/2011/05/09/2087976.html#2738813 留着学习

using System;
using System.Collections.Generic;
using System.Collections;
using System.Data;

namespace CTHFramework
{

/// <summary>
/// DataTable转换成IList
/// </summary>
/// <typeparam name="T"></typeparam>
public class TableToList<T> where T : class, new()
{
public static IList<T> ToList(DataTable dt, Func<DataRow, T> func)
{
if (dt == null || dt.Rows.Count == 0)
{
return null;
}
IList<T> list = new List<T>(dt.Rows.Count);
foreach (DataRow dr in dt.Rows)
{
list.Add(func(dr));
}
return list;
}
}

public class DataItem
{
public int ID
{
get;
set;
}

public string Name
{
get;
set;
}

public override string ToString()
{
return string.Format("ID:{0},Name:{1}", ID.ToString(), Name);
}
}

static class Program
{
static void Main(string[] args)
{
DataTable dt = new DataTable();
dt.Columns.Add(new DataColumn("ID", typeof(int)));
dt.Columns.Add(new DataColumn("Name", typeof(string)));
for (int i = 0; i < 10; i++)
{
DataRow dr = dt.NewRow();
dr["ID"] = i.ToString();
dr["Name"] = "Name" + i.ToString();
dt.Rows.Add(dr);
}

IList<DataItem> list = TableToList<DataItem>.ToList(dt, DataRowToDataItem);
foreach (var item in list)
{
Console.WriteLine(item.ToString());
}
Console.Read();
}

static DataItem DataRowToDataItem(DataRow dr)
{
return new DataItem { ID = Convert.ToInt32(dr["ID"]), Name = dr["Name"].ToString() };
}

}
}