Datatable与实体list之间的转换

public static class ConvertDataTableWithList<T> where T:new()
{
public static List<T> ConvertToModelList(DataTable dt)
{
//定义集合
List<T> ts = new List<T>();
T t = new T();
//获取此模型的公共属性
PropertyInfo[] propertys = t.GetType().GetProperties();
foreach (DataRow row in dt.Rows)
{
t = new T();
foreach (PropertyInfo pi in propertys)
{
//检查DataTable是否包含此列
if (dt.Columns.Contains(pi.Name))
{
//判断此属性是否有set
if (!pi.CanWrite)
continue;
object value = row[pi.Name];
if (value != DBNull.Value)
pi.SetValue(t, value, null);
}
}
ts.Add(t);
}
return ts;
}
public static DataTable ConvertToDataTable(List<T> list)
{
DataTable dt=new DataTable();

T t=new T();
PropertyInfo [] propertys=t.GetType().GetProperties();
//给datatable添加列
foreach (PropertyInfo pi in propertys)
{
dt.Columns.Add(pi.Name);
}
dt.AcceptChanges();
foreach (T item in list)
{
t = new T();
DataRow dr = dt.NewRow();
foreach (PropertyInfo pi in propertys)
{
if (!pi.CanWrite)
continue;
dr[pi.Name] = pi.GetValue(t);
}
dt.Rows.Add(dr);
}
dt.AcceptChanges();
return dt;
}
}