C# IList conversion from VB

I am trying to conver my vb code below to C#. But I get the error "Using the gerneric type system.collections.generic.IList<T> requires 1 type arguments" where the iList is declared in the declaration.

Would be grateful for any help.

Thanks

Public Function CreateGrid(ByVal id As String,
                   ByVal allowGrouping As Boolean,
                   ByVal allowFiltering As Boolean,
                   ByVal showFooter As Boolean,
                   ByVal allowAddingRecords As Boolean,
                   ByVal autoGenerateColumns As Boolean,
                   ByVal pageSize As Integer,
                   ByVal showHeader As Boolean,
                   ByVal dataSource As IList) As Grid

C# Conversion.......

public Grid CreateGrid(string id, bool allowGrouping, bool allowFiltering, bool showFooter, bool allowAddingRecords, bool autoGenerateColumns, int pageSize, bool showHeader, IList dataSource)