Compiler Error CS0225

The params parameter must be a single-dimensional array

When using the params keyword, you must specify a single-dimensional array of the data type. For more information, see Methods.

Example

The following sample generates CS0225:

// CS0225.cs  
public class MyClass  
{  
    public static void TestParams(params int a)   // CS0225  
    // try the following line instead  
    // public static void TestParams(params int[] a)  
    {  
    }  
  
    public static void Main()  
    {  
        TestParams(1);  
    }  
}