对象不包含“跳过” Umbraco剃刀的定义

Question

I'm trying to sort some nodes by their first letter, and page them in razor.(Umbraco). But get a "object does not contain a definition for 'Skip'" error when it hits the foreach.

pagesToList = homeNode.Children.OrderBy("Name");

IEnumerable<DynamicNode> nl = @homeNode.Children.Items;
pagesToList = nl.Where(x => x.Name.StartsWith(currentLetter));

This is what @pagesToList outputs:

System.Linq.Enumerable+WhereListIterator`1[umbraco.MacroEngines.DynamicNode]


foreach(dynamic item in pagesToList.Skip(1){

}

Answer 1

You are possibly using the wrong property. If you are only after those nodes just below your homeNode , then don't use the Items property. Also, try not to cast your objects. C# has an effective var object. Assuming that homeNode is a DynamicNode, then it might be worth trying the following:

pagesToList = homeNode.Children.OrderBy("Name").Where(x => x.Name.StartsWith(currentLetter));

Then your code should work. Please note that again we are using var because we want the object declared at compile-time, instead of using dynamic, we should only really do when we are accessing some unknown, or dynamic , properties the pagesToList object):

foreach(var item in pagesToList.Skip(1)){

}

So to summarise, it looks like your code was using the property "Items", which gave us an array of DynamicNode[] instead of an IEnumerable object.

I hope this helps you out. Good luck!