我已經找到了一種方法來做到這一點,但我不確定是否使用這段代碼。如果你有一個包含兩個表的DataContext:
PrimaryTable
ID,
FirstValue,
SecondValue
SecondaryTable
ID,
FirstSecondaryValue
您可以使用下面的DataHelper類:
class DataHelper
{
public MyDatabaseDataContext db = new MyDatabaseDataContext();
List<dynamic> GetDynamicList<T>() where T : class
{
System.Data.Linq.Table<T> table = db.GetTable<T>();
var result = from a in table select a;
return result.ToList<dynamic>();
}
public List<dynamic> GetWhatIWant(string tableName)
{
Type myClass = Type.GetType("DynamicLinqToSql." + tableName);
MethodInfo method = typeof(DataHelper).GetMethod("GetDynamicList", BindingFlags.NonPublic | BindingFlags.Instance);
method = method.MakeGenericMethod(myClass);
return (List<dynamic>)method.Invoke(this, null);
}
}
然後你就可以創建你DataHelper的實例,並調用GetWhatIWant方法,傳遞表名。
var dataHelper = new DataHelper();
List<dynamic> myFirstList = dataHelper.GetWhatIWant("PrimaryTable");
for (int i = 0; i < 5 && i < myFirstList.Count; i++)
{
System.Console.WriteLine(String.Format("{0} - {1}", myFirstList[i].FirstValue.ToString(), myFirstList[i].SecondValue.ToString()));
}
List<dynamic> mySecondList = dataHelper.GetWhatIWant("SecondaryTable");
for (int i = 0; i < 5 && i < mySecondList.Count; i++)
{
System.Console.WriteLine(mySecondList[i].FirstSecondaryValue.ToString());
}
System.Console.ReadKey();
您可以參考,這些文章和回答:HTTP: //weblogs.asp.net/scottgu/archive/2008/01/07/dynamic-linq-part-1-using-the-linq-dynamic-query-library.aspx http://social.msdn.microsoft.com/Forums/eu/linqprojectgeneral/thread/d9ffe9a1-59c3-4776-900a-4b45e0b4abcf http://stackoverflow.com/questi ons/7800770/how-can-you-dynamic-select-a-table-with-entity-framework-4-x http://www.west-wind.com/weblog/posts/2007/Aug/13/LINQ -to-SQL-and-Dynamic-Queries-and-Expressions –
我會嘗試在這些鏈接上進行搜索。如果我找到有用的東西,我會告訴你。 – benVG
祝你好運,這將是非常容易的,我想! –