对IEnumerable< dynamic> [英] Count on an IEnumerable<dynamic>

问题描述

我正在使用Rob Conery的Massive ORM。

I'm using Rob Conery's Massive ORM.

有没有一种优雅的方法来计算返回的记录集？

Is there an elegant way to do a count on the record set returned?

dynamic viewModelExpando = result.ViewData.Model;
var queryFromMassiveDynamic = viewModelExpando.TenTricksNewestFirst;

//fails as have actually got TryInvokeMember on it
var z = queryFromMassiveDynamic.Count();

//works
int i = 0;
foreach (var item in queryFromMassiveDynamic) {
    i++;
}

推荐答案

扩展方法成员语法，请尝试直接调用静态方法。

Rather than calling it using the extension method member syntax, try calling the static method directly.

int count = Enumerable.Count(queryFromMassiveDynamic);

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