DATATABLE(DATASET)与实体类之间的互转.

dataset和实体类 之间的转换

//dataset转实体类


代码

/// <summary>
/// 将实体类转换成DataTable
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="i_objlist"></param>
/// <returns></returns>
public static DataTable Fill<T>(IList<T> objlist)
{
if (objlist == null || objlist.Count <= 0)
{
return null;
}
DataTable dt = new DataTable(typeof(T).Name);
DataColumn column;
DataRow row;

System.Reflection.PropertyInfo[] myPropertyInfo = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);

foreach (T t in objlist)
{
if (t == null)
{
continue;
}

row = dt.NewRow();

for (int i = 0, j = myPropertyInfo.Length; i < j; i++)
{
System.Reflection.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;
}