无法将方法组分配给asp.net、linq、c#中的隐式类型局部变量

本文关键字：linq 局部变量 类型 net 方法 分配 asp | 更新日期: 2023-09-27 17:59:58

public void selectqueryasso()
    {
        CustomerOrderResult cso=new CustomerOrderResult();
        var a = (from as1 in ds.orders
                   from as2 in ds.order_details
                   where (as1.oid == as2.oid)
                   orderby as1.pname
                   select new CustomerOrderResult 
                   {
                      oid = Convert.ToInt32(as1.oid),
                      cmny =as1.cmny,
                      ocountry=as1.ocountry,
                      pname=as1.pname,
                      price= Convert.ToString(as1.price),
                      orderno= Convert.ToString(as1.orderno),
                      saltitle=as1.saltitle
                   }).ToList<CustomerOrderResult>;
        GridView1.DataSource = a;
        GridView1.DataBind();
    }

无法将方法组分配给隐式类型的局部变量无法将方法组分配给隐式类型的局部变量无法将方法组分配给隐式类型的局部变量

无法将方法组分配给asp.net、linq、c#中的隐式类型局部变量

您实际上并没有调用ToList()方法，而是缺少括号：

public void selectqueryasso()
{
    CustomerOrderResult cso=new CustomerOrderResult();
    var a = (from as1 in ds.orders
               from as2 in ds.order_details
               where (as1.oid == as2.oid)
               orderby as1.pname
               select new CustomerOrderResult 
               {
                  oid = Convert.ToInt32(as1.oid),
                  cmny =as1.cmny,
                  ocountry=as1.ocountry,
                  pname=as1.pname,
                  price= Convert.ToString(as1.price),
                  orderno= Convert.ToString(as1.orderno),
                  saltitle=as1.saltitle
               }).ToList<CustomerOrderResult>();
    GridView1.DataSource = a;
    GridView1.DataBind();
}
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