On the forum often see there is no default parameters in C #, in the C # team blog to see Eric Gunnerson an article why doesn ' t C # support default parameters?
After reading the original with reflector back to see Int32 tostring function, three overloaded function code is:
public override string ToString () {return this. ToString (null, NULL); public string ToString (string format) {return this. ToString (format, null);} public string ToString (string format, IFormatProvider provider) {return Number.formatint32 (this.m_value, format, Numberformatinfo.getinstance (provider)); At the time, it was just like this definition can reduce the amount of code, when the call is more consistent, and so on, but did not expect to have a relationship with the default parameters
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