how can I validate a collection asp.net?

[rohitmed]

I need to parse a list of items from a delimited file, then apply validation rules for each.the display will probably be a gridview.On a user action (say like clicking a validate button), I need to iterate all items, apply validation, save and display validation results back to user.Planning to either [*]use validationrule and validation result as explained in msdn here or[*]use annotated validation on model, then call validatemodel for each itemIs there a better way to do this?