Updating a datatable cell in a dataset in MVC?

In my C# MVC application, I have a dataset that is returned by a model. Before iterating through the data on the view, I want to the cells of a particular column for, say matched text to be replaced.

Is the best place to do this before returning the dataset to the controller, or let the controller update开发者_开发问答 the dataset.

Thanks.

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Maybe some more details could change my mind. But probably not. Controller should already receive it modified.