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String.Format with string array
f#

Why am I getting an error on this code:

let formatString = "part1:{0} part2:{1}"

let s = "hello world"

let parts = s.Split(' ')

let x = System.String.Format (formatString, parts)

Shouldn't I be able to have a string array as the second argument to String.Format?

Here is the error that I get:

System.FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.

at System.Text.StringBuilder.AppendFormat(IFormatProvider provider, String format, Object[] args)

at System.String.Format(IFormatProvider provider, String format, Object[] args)

at System.String.Format(String format, Object arg0)

at <StartupCode$FSI_0031>.$FSI_0031.main@() in C:\Users\Ken\Documents\Visual Studio 2008\Projects\FSharp\MiniCodeGenFSharp\MiniCodeGenFSharp\Program.fs:line 23

stopped due to error

.

You will unfortunately have to help things along by ensuring that the second argument to String.Format is of type obj[]. You could change the line that calls Split to something like the following:

1

let parts = s.Split(' ') |> Array.map box
By on 6/22/2009 5:55 AM ()

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