How to escape curly braces in String.format C#
To escape curly braces and interpolate a string inside the String.format() method use triple curly braces {{{ }}}.
Here is an example:
using System;
class EscapeDemo {
  static void Main() {
      string val = "1, 2, 3";
      string output =String.Format(" My values are {{{0}}}", val);      Console.WriteLine(output);
  }
}Output:
 My values are {1, 2, 3}Similarly, you can also use the c# string interpolation feature instead of String.format().
using System;
class EscapeDemo {
  static void Main() {
      string val = "1, 2, 3";
      string output = $" My values are {{{val}}}";      Console.WriteLine(output);
  }
}

