使用WHERE子句在Linq中选择AS

Question

我试图用Linq查询填充下拉列表.但是,我需要将FirstName和Surname作为一个字段.连接DDL.DataTextField返回一个字段未找到错误.

SQL将是这样的:

SELECT (FirstName + SPACE + Surname) AS FullName FROM Table WHERE ID=1

目前的Linq:

public IList<mytable> GetNames(int p_ID)
{
    return db.mytable.Where(c => c.ID_fk == p_ID).ToList();
}

Answer 1

如果您只需要全名,可以使用它:

public IList<string> GetNames(int p_ID)
{
    return db.mytable.Where(c => c.ID_fk == p_ID)
                     .Select(x => x.FirstName + " " + x.Surname)
                     .ToList();
}