如何将此查询表达式语法转换为方法语法？

Question

如何将此查询表达式语法转换为方法语法？请帮助，

var designers = (from d in _dbRead.Designer 
         join vd in _dbRead.VariationDesigner on d.DesignerId equals vd.DesignerId 
         join pv in _dbRead.ProductVariation on vd.VariationId equals pv.VariationId 
         where (pv.IsActive ?? false) && (d.SortName ?? "") != "" 
         orderby d.SortName 
         select d).Distinct(); 

Answer 1

，我没有使用小抄here

我在另一个同种岗位上计算器的发现转化。

这里是soultion：

objDbread.Designer.Where(x => (x.SortName ?? string.Empty) != string.Empty).Join(objDbread.VariationDesigner, x => x.DesignerId, x1 => x1.DesignerId, (x1, x2) => new { x1, x2 }).Join(objDbread.ProductVariation, x3 => x3.x2.VariationId, x4 => x4.VariationId, (x3, x4) => new { x3, x4 }).Where(x5 => (x5.x4.IsActive ?? false)).OrderBy(x5 => x5.x3.x1.SortName).Select(x5 => x5.x3.x1).Distinct().ToList(); 

Answer 2

您需要获得LinqPad（www.linqpad.net）的副本并将其粘贴到其中。您可以单击一个按钮，以查看编译器将所有Linq查询转换为的相应Method语法。