NHLambdaExtensions:创建一个Criterion对象，以后再添加到ICriteria中 [英] NHLambdaExtensions: Create a Criterion object to add to ICriteria later

问题描述

我的应用程序通过创建Criterion对象(例如:

My application creates a dynamically generated query at runtime based on user input by creating Criterion objects e.g:

ICriterion criterion = Restrictions.Eq("Name", "John");
......
detachedCriteriaSomewhereElse.Add(criterion);

如何在NHLambdaExtensions中执行此操作?

How do I do this in NHLambdaExtensions?

我真正需要做的是

ICriterion criterion = Restrictions.Eq<Person>(p=>  p.Name == "John");

但这是无效的.有什么办法吗?

but this isn't valid. Is there any way to do this?

推荐答案

使用NHLambdaExtensions，您可以使用SQLExpression类执行以下操作:

With the NHLambdaExtensions you have the SQLExpression class that lets you do the following:

ICriterion criterion = SqlExpression.CriterionFor<Person>(p => p.Name == "John");

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