本文整理汇总了C#中DbExpression.Distinct方法的典型用法代码示例。如果您正苦于以下问题：C# DbExpression.Distinct方法的具体用法？C# DbExpression.Distinct怎么用？C# DbExpression.Distinct使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DbExpression的用法示例。
在下文中一共展示了DbExpression.Distinct方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Distinct
// The following methods correspond to query builder methods on ObjectQuery
// and MUST be called by expression translators (instead of calling the equivalent
// CommandTree.CreateXxExpression methods) to ensure that Span information flows
// correctly to the root of the Command Tree as it is constructed by converting
// the LINQ expression tree. Each method correctly maintains a Span mapping (if required)
// for its resulting expression, based on the Span mappings of its argument expression(s).
private DbDistinctExpression Distinct(DbExpression argument)
{
var retExpr = argument.Distinct();
ApplySpanMapping(argument, retExpr);
return retExpr;
}