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Compiler Error CS1949

Visual Studio 2008

The contextual keyword 'var' cannot be used in a range variable declaration.

A range variable is implicitly typed by the compiler. There is no need to use var with a range variable.

To correct this error

  • Remove the var keyword from in front of the range variable.

The following example generates CS1949:

// cs1949.cs
using System;
using System.Linq;
class Test
    static void Main()
        var x = from var i in Enumerable.Range(1, 100) // CS1949
        select i;