import issue in bit values

i have a issue in importing bit values in to database using SqlBulkCopy
Creating object of datatable :

  tblcsv.Columns.Add("EmailOptOut");
                tblcsv.Columns.Add("IsConverted");

Mapping Table column :

           objbulk.ColumnMappings.Add("EmailOptOut", "EmailOptOut");
             objbulk.ColumnMappings.Add("IsConverted", "IsConverted");


these are the bit column in sql database.when i am trying import,it showing some error
like
 "The given value of type String from the data source cannot be converted to type money of the specified bit column"