Quick question; I’ve recently upgraded to VS2010, and got the new version of ReSharper.

Question

Editorial Team

Asked: May 15, 20262026-05-15T22:31:03+00:00 2026-05-15T22:31:03+00:00

Now, when ReSharper is giving me autocomplete options for a variable, it give me the option of <variableName>:

What does the : stand for?

For example; I have this:

var productIds = new List<int>(inventoryItemsToProcess.Keys);

And when I start typing out a line like this:

var lastOrderDates = GetProductLastOrderDates(pro

It gives me the option for productIds as well as productIds:

What’s the difference between the two?

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Editorial Team · Answer 1 · 2026-05-15T22:31:03+00:00

Editorial Team

The second is for C# 4.0 named arguments. And here’s a link on MSDN.

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