how to add { in String Format c#

Question

Possible Duplicate:
How to escape brackets in a format string in .Net
string.format format string containing {

I was trying to format string like this, {Enum.Enum1,"Enum1String"} I tried this code

foreach (KeyValuePair<int, string> p in Helper.Dict)
            {
               // file.WriteLine(string.Format("{0} | {1}",p.Key,p.Value));
               file.WriteLine(string.Format("{Enum.{0},\"{1}\"}", p.Value,p.Value));

            }

but it doesn not work. How to add { in string format. I am thinking to use stringbuilder.

Answer 1

From this MSDN FAQ:

string s = String.Format("{{ hello to all }}");
Console.WriteLine(s);    //prints '{ hello to all }'

Answer 2

string t = "1, 2, 3";
string v = String.Format(" foo {{{0}}}", t); 

See duplicate post here How to escape braces (curly brackets) in a format string in .NET

using {{ and }} with result in { and } in String.Format.

Answer 3

Alternatively, using the @ operator ensures that the string is represented exactly as it appears in code:

foreach (KeyValuePair<int, string> p in Helper.Dict)
{
       // file.WriteLine(string.Format("{0} | {1}",p.Key,p.Value));
       file.WriteLine(@"{" + string.Format("Enum.{0},\"{1}\"", p.Value,p.Value) + @"}");
}