====== The StringBuilder ======

If you are processing strings, of course you can concatenate them using the ''+'' operator:
<code>cString := "Hello" + " " + "from" + " " + "my" + " " + "X#" + " " + "program"</code>

But if you are building longer strings, composed by many substrings, you should use the [[https://docs.microsoft.com/en-us/dotnet/api/system.text.stringbuilder|System.Text.StringBuilder]] class.
Is is much more efficient when dealing with many string parts:

<code>using System.Text

oSB := StringBuilder{}
oSB:Append( "Hello" )
oSB:Append( " " )
oSB:Append( "from" )                                                                                                           
oSB:Append( " " )
oSB:Append( "my" )
oSB:Append( " " )
oSB:Append( "X#" )
oSB:Append( " " )
oSB:Append( "program" )
System.Console.WriteLine( oSB:ToString() )</code>

The ''StringBuilder'' class has also a ''AppendFormat()'' method, and many other interesting methods to work with the string, like ''Replace()'', ''Copy()'' and ''Insert()''. Please see MSDN for more details - specially the [[https://docs.microsoft.com/en-us/dotnet/api/system.text.stringbuilder|System.Text.StringBuilder]] docs page has a very long and detailled description of this class, together with useful samples.