How do I interpolate strings?

Question

I want to do the following in C# (coming from a Python background):

strVar = \"stack\"
mystr  = \"This is %soverflow\" % (strVar)

How do I

Answer 1

string mystr = string.Format("This is {0}overflow", strVar);

And you could also use named parameters instead of indexes.

Answer 2

You should be using String.Format(). The syntax is a bit different, numerical placeholders are used instead.

Example:

String.Format("item {0}, item {1}", "one", "two")

Have a look at http://msdn.microsoft.com/en-us/library/system.string.format.aspx for more details.

Answer 3

Use:

strVar = "stack"
mystr  = String.Format("This is {0}", strVar);