订购Linq加入

Question

我尝试你说的任何事情，但我无法完成我的工作 我的代码

    Func<Dead, Object> orderByFunc = null;
    orderByFunc = Dead => Dead.Last_Name;
    var query = from ded in searchDead
                    join ask in Asker on ded.Family_Number equals ask.Family_Number
                    orderby orderByFunc
                    select ask;
    Functions.searchAsker = query.AsQueryable<Asker>();

Answer 1

string order = "Last Name";
var propertyorder = null
switch (order)
{
    case "Last Name":
        propertyorder = ded.Last_Name;
        break;
    case "First Name":
        propertyorder = ded.First_Name
        break;
    default:
        propertyorder = ded.Last_Name;
        break;
}

   var query = from ded in Dead
    join ask in Asker on ded.Family_Number equals ask.Family_Number
    orderby (propertyorder)
    select ask;