C# SQLCLR SqlMetaData with SqlDbType.Float column getting InvalidCastException on SqlDataRecord.SetFloat

In my SQLCLR C# Stored Procedure on SQL Server 2008 R2 i returned the results using a SqlDataRecord that has a column of SqlDbType.Float.

Trying to set the value using the SetFloat Method, i got an InvalidCastException.

How-i-fixed-it:
I found out that SqlDbType.Float is equal to a System.Double data type. Using the SetDouble Method it works fine.

Here i found the right hints:
http://msdn.microsoft.com/de-de/library/vstudio/system.data.sqldbtype(v=vs.80).aspx

http://msdn.microsoft.com/de-de/library/vstudio/microsoft.sqlserver.server.sqldatarecord.setfloat.aspx

http://msdn.microsoft.com/de-de/library/vstudio/microsoft.sqlserver.server.sqldatarecord.setdouble.aspx