Stored procedure output parameters return empty - sql-server

Question

In my SQL Server 2014 I have a Stored procedure that returns 2 values in 2 variables as output:
#TotalNoRatio
#TotalRatio
Here are the results after execution:
#TotalNoRatio #TotalRatio
34510793 31857292
Return Value 0
Now I want those 2 values to be display in a Label on my form.
Here is the code:
cmd2.CommandType = CommandType.StoredProcedure
cmd2.Parameters.Add("#TotalNoRatio", SqlDbType.Decimal)
cmd2.Parameters.Add("#TotalRatio", SqlDbType.Decimal)
cmd2.ExecuteNonQuery()
Me.LTotal1.Text = cmd2.Parameters("#TotalNoRatio").Value
Me.LTotal2.Text = cmd2.Parameters("#TotalRatio").Value
Everything runs fine without errors except that the results are empty.

Answer 1

You need to define direction as return something like this:
SqlParameter retval = sqlcomm.Parameters.Add("#TotalNoRatio", SqlDbType.Decimal);
retval.Direction = ParameterDirection.ReturnValue;

Answer 2

You will need to specify the direction of you parameters as ParameterDirection.Output. You will also need to declare your parameters on your procedure as OUTPUT.
I have put together a small example below.
This is my procedure:
CREATE PROCEDURE [dbo].[procedureName]
#TotalNoRatio DECIMAL(18,2) OUTPUT,
#TotalRatio DECIMAL(18,2) OUTPUT
AS
SET #TotalNoRatio = 2
SET #TotalRatio = 3
This is my VB.NET code:
Using con As New SqlConnection(conString),
cmd As New SqlCommand("procedureName", con) With {.CommandType = CommandType.StoredProcedure}
con.Open()
cmd.Parameters.Add(New SqlParameter("#TotalNoRatio", SqlDbType.Decimal) With {.Direction = ParameterDirection.Output})
cmd.Parameters.Add(New SqlParameter("#TotalRatio", SqlDbType.Decimal) With {.Direction = ParameterDirection.Output})
cmd.ExecuteNonQuery()
lTotal1.Text = "TotalNoRatio: " & cmd.Parameters("#TotalNoRatio").Value.ToString()
lTotal2.Text = "TotalRatio: " & cmd.Parameters("#TotalRatio").Value.ToString()
End Using
This is a screenshot of the output:
On a seperate note consider turning Option Strict On:
Restricts implicit data type conversions to only widening conversions, disallows late binding, and disallows implicit typing that results in an Object type.
cmd.Parameters("#TotalNoRatio").Value returns type Object. You should be appending .ToString() to it if you're assigning to Label.Text.
Also note that I have implemented Using. You may already have, it's difficult to tell but if you haven't it's worth doing:
Sometimes your code requires an unmanaged resource, such as a file handle, a COM wrapper, or a SQL connection. A Using block guarantees the disposal of one or more such resources when your code is finished with them. This makes them available for other code to use.