I was playing around with the Datetime.ParseExact method, and it wants an IFormatProvider... It works giving null as input, but what exactly does it do?

I am wondering why Code Analysis rule CA1305 - Specify IFormatProvider doesn't work for TryParse methods? For example with 'Microsoft All Rules' rule set, Code Analysis gives CA1305 warning for fo...

String formatting in C#; Can I use it? Yes. Can I implement custom formatting? No. I need to write something where I can pass a set of custom formatting options to string.Format, which will hav...

If we're using the ParseExact method for exact date-time's parsing using a specified format, why do we need to provide a IFormatProvider object? what is the point behind it? For example: DateTime...

How do I pass an IFormatProvider to a StreamWriter? Specifically I want to create a new StreamWriter("myfile.txt", CultureInfo.InvariantCulture); TextWriter and StringWriter have a parameter for ...

We're currently using the following for creating US dollar values in our web application: string.Format("{0:C0}", dollarValue ); In this example, if dollarValue is 145, then we'll see: $145. If ...

I tried running FxCop on a few assemblies of our product, and I get lots and lots of matches of the "Specify IFormatProvider" rule. As it happens, some of those are legitimate, but it also matches...

I need to display a currency in my ASP.NET MVC application but when the currency is 0 I would like it to display "Free" (localized of course!) instead of $0.00. So when I have something like this....

So, maybe this is a bad design; I don't know. But say I have a DataTable with a column that holds int values; these values are in fact meant to represent some enum type that I have in my project. ...

I was trying to create an IFormatProvider implementation that would recognize custom format strings for DateTime objects. Here is my implementation: public class MyDateFormatProvider : IFormatPro...