Question

I am building a Payroll application in C# (learning C#) that will integrate into SAP Business 1.
When creating tables in SAP, SAP generates two fields automatically in user defined tables. One is Code – (primary key) and another is Name. Both are of type varchar/alphanumeric.

I have this query that returns the results although not in the fashion I want. I.e

Code    Name    U_Tax_year  U_Minimum_pay   U_Maximum_pay   
0        0        2011                 1         1  
1        1        2011                 2         2  
10      10        2011                11        11  
11      11        2011                12        12  
2        2        2011                 3         3  
3        3        2011                 4         4  
4        4        2011                 5         5  
5        5        2011                 6         6  
6        6        2011                 7         7  
7        7        2011                 8         8  
8        8        2011                 9         9  
9        9        2011                10        10  

This is due to the fact that Code and Name are not integer fields.

Below is my query:

// Get service instances
            var nhifTableSlabService = Program.Kernel.Get<INHIFTableSlabService>();

//Query database
            var nhiftableSlabs = from tb in nhifTableSlabService.GetAllNHIFTableSlabs()
                                where tb.U_Tax_year.ToString().Trim().Equals(cb_tax_year.Text.Trim(), StringComparison.CurrentCultureIgnoreCase)
                                orderby int.Parse(tb.Code.ToString()) descending
                                select tb;

            if (nhiftableSlabs.Any(x => x != null) 
            {
                // Enable datagridview
                dataGridView1.Visible = true;

                ...bla bla
            }

How do I get the results, convert the Codes to integers so that I can finally display the results in descending order of code?

Answer 1

Use Convert.ToInt32() instead of int.Parse and you are good to go. See here for more details.