Curly braces and string.Format()

Jonas Bush — Mon, 05 Mar 2007 21:08:00 GMT

Recently I was trying to use StringBuilder.AppendFormat to build some javascript, and was hit with an exception when trying to do this:

sb.AppendFormat("function {0}(args) { return false; }", someVariable);

The problem is that you can't have { or } inside an input string for string.Format(). The solution is actually fairly straightforward:

sb.AppendFormat("function {0}(args) {{ return false; }}", someVariable);

Instead of using "\" as an escape character, you would use { or } (depending on what you want to escape).

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