#region 資料集互操作
/// <summary>
/// 将集合類轉換成DataTable
/// </summary>
/// <param name="list">集合</param>
/// <returns></returns>
public static DataTable ToDataTable(IList list)
{
DataTable result = new DataTable();
if (list.Count > 0)
{
PropertyInfo[] propertys = list[0].GetType().GetProperties();
foreach (PropertyInfo pi in propertys)
{
result.Columns.Add(pi.Name, pi.PropertyType);
}
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;
}
/// 将泛型集合類轉換成DataTable
/// <typeparam name="T">集合項類型</typeparam>
/// <returns>資料集(表)</returns>
public static DataTable ToDataTable<T>(IList<T> list)
return ConvertX.ToDataTable<T>(list, null);
/// <param name="propertyName">需要傳回的列的列名</param>
public static DataTable ToDataTable<T>(IList<T> list, params string[] propertyName)
List<string> propertyNameList = new List<string>();
if (propertyName != null)
propertyNameList.AddRange(propertyName);
if (propertyNameList.Count == 0)
result.Columns.Add(pi.Name, pi.PropertyType);
else
if (propertyNameList.Contains(pi.Name))
result.Columns.Add(pi.Name, pi.PropertyType);
if (propertyNameList.Count == 0)
{
object obj = pi.GetValue(list[i], null);
tempList.Add(obj);
}
else
if (propertyNameList.Contains(pi.Name))
{
object obj = pi.GetValue(list[i], null);
tempList.Add(obj);
}
#endregion
}
public class ConvertXToDataTableTester : ITest
{
#region ITest 成員
public string Name
get { return new ConvertXToDataTableTester().GetType().Name; }
public void StartRuntime()
//Test1(ToDataTable<>):boundary
CollectionBase<Item> items1 = new CollectionBase<Item>();
items1.Add(new Item("item1_1", 1));
items1.Add(new Item("item1_2", "null"));
items1.Add(new Item("item1_3", 3));
DataTable dt = ConvertX.ToDataTable<Item>(items1);
foreach (DataRow dr in dt.Rows)
Console.WriteLine("{0},{1}", dr["text"].ToString(), dr[1].ToString());
//Test2(ToDataTable):
ArrayList items2 = new ArrayList();
items2.Add(new Item("item2_1", 3));
items2.Add(new Item("item2_2", 4));
items2.Add(new Item("item2_3", 5));
DataTable dt2 = ConvertX.ToDataTable(items2);
foreach (DataRow dr in dt2.Rows)
//Test3(ToDataTable<>):
IList<Item> items3 = new CollectionBase<Item>();
items3.Add(new Item("item3_1", 3));
items3.Add(new Item("item3_2", 4));
items3.Add(new Item("item3_3", 5));
DataTable dt3 = ConvertX.ToDataTable<Item>(items3, "Text");
foreach (DataRow dr in dt3.Rows)
//Console.WriteLine("{0},{1}", dr["text"].ToString(), dr[1].ToString());
Console.WriteLine("{0}", dr["text"].ToString());
//Test4(ToDataTable<>):Error with error column name
try
foreach (DataRow dr in dt.Rows)
Console.WriteLine(dr["errorName"].ToString());
catch (Exception ex)
Console.WriteLine(ex.Message);
public class Item
public Item(string text, object value)
this.text = text;
this.value = value;
private string text;
public string Text
get
return this.text;
set
this.text = value;
private object value;
public object Value
return this.value;
this.value = value;
public interface ITest
{
string Name
{ get; }
void StartRuntime();
using System;
using System.Collections.Generic;
using System.Text;
using yd.Base;
using yd.Base.Collections.Generic;
using yd.Util;
namespace ConsoleApplicationTester
class Program
static void Main(string[] args)
bool debugging = false;
CollectionBase<ITest> testers = new CollectionBase<ITest>();
//testers.Add(new QuarterTester());
//testers.Add(new ConvertXToDataTableTester());
foreach (ITest tester in testers)
if (debugging == false)
try
tester.StartRuntime();
Console.WriteLine("___________________________________");
Console.WriteLine(tester.Name + " succeed!");
catch (Exception ex)
Console.WriteLine(tester.Name + " with errors!");
Console.WriteLine("____________The error is under the line!__________");
Console.WriteLine(ex.Message);
Console.WriteLine("!!!!!!!!!!!!!!!!!!!!@@@@@@@!!!!!!!!!!!!!!!!!!!!");
else
tester.StartRuntime();
Console.WriteLine("___________________________________");
Console.WriteLine(tester.Name + " succeed!");
}