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My MVC application has a form with many fields. When I submit the empty form, some of the field values returned were ,, (two commas).
string value = form[key]; // value is ,,
I was expecting to see an empty string, not 2 commas.
When you have multiple fields with the same name the values of the fields will be returned as a comma seperated string. It is mentioned here.
From MSDN: