Why we use "this" in Extension Methods ?
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by M.H
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Published on 2010-04-04T12:08:14Z
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2010/04/04
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c#
Hi, I want to ask why we use "this" keyword before the parameter in an extension method (C# Language)........... like this function :
public static int ToInt(this string number)
{
return Int32.Parse(number);
}
I know that we have to use it but I don't know why.
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