Bulk insert

The following is a proc to accept a data table as parameter and insert it to another table:

CREATE PROCEDURE [dbo].[InsertData]
    @TableType TableType readonly
AS
BEGIN
    insert into [dbo].DataList select * from @TableType; 
END

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When I run this code, I get "Parameter or variable '@TableType' has an invalid data type."

Q1: What is correct syntax for line  @TableType TableType readonly?

Q2: Could you please code to create a sample table with two lines of data so I could test this proc?

fileID       filename        createdOn
1              File_1          2014-02-26 	
2              File_2          2014-03-28

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Note that fileID is identity column.