DataTable转换为IList

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/// <summary>  
/// 转换工具类  
/// </summary>  
/// <typeparam name="T"></typeparam>  
public class ConvertHelper<T> where T : new()  
{  
    /// <summary>  
    /// DataTable转换为IList  
    /// </summary>  
    /// <param name="dt"></param>  
    /// <returns></returns>  
    public static IList<T> ConvertToIList(DataTable dt)  
    {  
        // 定义集合   
        IList<T> list = 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);  
                }  
            }  
            list.Add(t);  
        }  
        return list;  
    }  
 
    /// <summary>  
    /// Ilist 转换成 DataSet  
    /// </summary>  
    /// <param name="list"></param>  
    /// <returns></returns>  
    public static DataSet ConvertToDataSet<T>(IList<T> list)  
    {  
        DataSet ds = new DataSet();  
        ds.Tables.Add(ConvertToDataTable<T>(list));  
        return ds;  
    }  
 
    /// <summary>  
    /// Ilist 转换成 DataTable  
    /// </summary>  
    /// <param name="list"></param>  
    /// <returns></returns>  
    public static DataTable ConvertToDataTable<T>(IList<T> list)  
    {  
        if (list == null || list.Count <= 0)  
        {  
            return null;  
        }  
        DataTable dt = new DataTable(typeof(T).Name);  
        DataColumn column;  
        DataRow row;  
        PropertyInfo[] myPropertyInfo = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);  
        foreach (T t in list)  
        {  
            if (t == null)  
            {  
                continue;  
            }  
            row = dt.NewRow();  
            for (int i = 0, j = myPropertyInfo.Length; i < j; i++)  
            {  
                PropertyInfo pi = myPropertyInfo[i];  
                string name = pi.Name;  
                if (dt.Columns[name] == null)  
                {  
                    column = new DataColumn(name, pi.PropertyType);  
                    dt.Columns.Add(column);  
                }  
                row[name] = pi.GetValue(t, null);  
            }  
            dt.Rows.Add(row);  
        }  
        return dt;  
    }  
 
} 

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/Hope94/archive/2010/08/05/5790185.aspx