Sending a checkbox value to a stored procedure

I have a few bit columns in a table in a database. I have a stored procedure in which I pass values to create a record. I represent these bit values as checkboxes on my .aspx page. I'm looking to pass the state of these checkboxes (checked = 1, unchecked = 2) to my storedprocedure.

My existing vb code is below which is passing String values fine. I just need the syntax for the lines: ******DIM checkboxes (cb1, cb2, etc)************ and *******Add cb1, cb2 paremeters******

Dim connectionstring As String = System.Configuration.ConfigurationManager.ConnectionStrings("ConnectionString").ConnectionString
        Dim ObjConn As System.Data.SqlClient.SqlConnection = New System.Data.SqlClient.SqlConnection(connectionstring)
        Dim objCmd As SqlCommand = New SqlCommand()
        objCmd.Connection = ObjConn
        Dim codereference As String = txtCodeReference.Text
        Dim description As String = txtDescription.Text
        Dim category As String = txtCategory.Text
 
******DIM checkboxes (cb1, cb2, etc)************
 
        objCmd.CommandType = System.Data.CommandType.StoredProcedure
        objCmd.CommandText = "dbo.AddInspectionToPicklist"
        objCmd.Parameters.Add("@codereference", Data.SqlDbType.VarChar).Value = codereference
        objCmd.Parameters.Add("@description", Data.SqlDbType.VarChar).Value = description
        objCmd.Parameters.Add("@category", Data.SqlDbType.VarChar).Value = category
 
*******Add cb1, cb2 paremeters******
 
        ObjConn.Open()
        objCmd.ExecuteNonQuery()
        ObjConn.Close()

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