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Chapter 3: Classes and Structures
public string ToString(string format, IFormatProvider formatProvider)
{
StringBuilder compositeStr = new StringBuilder("");
if ((format != null) && (format.ToUpper( ).Equals("V")))
{
double direction = this.GetDirectionInRadians( );
double magnitude = this.GetMagnitude( );
string retStringD = direction.ToString("G5", formatProvider);
string retStringM = magnitude.ToString("G5", formatProvider);
compositeStr.Append("magnitude = ").Append(retStringM).Append
("\tDirection = ").Append(retStringD);
}
else
{
string retStringX1 = this.x1.ToString(format, formatProvider);
string retStringY1 = this.y1.ToString(format, formatProvider);
string retStringX2 = this.x2.ToString(format, formatProvider);
string retStringY2 = this.y2.ToString(format, formatProvider);
compositeStr.Append("(").Append(retStringX1).Append(",").Append
(retStringY1).Append(")(").Append(retStringX2).Append
(",").Append(retStringY2).Append(")");
}
return (compositeStr.ToString( ));
}
}
Discussion
The ToString method provides a convenient way to display the current contents, or
state, of a structure (this recipe works equally well for reference types). The solution
section of this recipe shows the various implementations of
ToString for both
numeric and textual data. The
Line class ...