Question

Every time when I use debugger, one of my stored procedures is executed, even when I stop the debugger before reaching the line of code responsible for saving data to the database.

How could I prevent this from happening? I don’t want to have incomplete rows in the database.

POrder po = new POrder();          
po.PODate = DateTime.Parse(txtPODate.Text);  <-- Breakpoint here

po.POVendorID = int.Parse(ddPOVendors.SelectedValue);  <-- Stop Debugging here 

I am not reaching po.AddNewOrder yet and I stop the debugger, so I am not executing the stored procedure yet

po.AddNewOrder();

POrder class:

    public DateTime  PODate { get; set; }
    public int POVendorID { get; set; }

    public void AddNewOrder()
    {
        SqlConnection con = new SqlConnection(ss.GetConectionString());

        SqlCommand cmd = new SqlCommand("uspAddNewPOrder", con);
        cmd.CommandType = CommandType.StoredProcedure;

        SqlParameter parPODate = new SqlParameter("@PODate", SqlDbType.Date);
        parPODate.Value = PODate;
        cmd.Parameters.Add(parPODate);

        SqlParameter parPOVendorID = new SqlParameter("@POVendorID", SqlDbType.Int);
        parPOVendorID.Value = POVendorID;
        cmd.Parameters.Add(parPOVendorID);

        try
        {
            con.Open();
            cmd.ExecuteNonQuery();
        }
        catch (Exception exp) 
        {
            throw new Exception(exp.Message.ToString());
        }
        finally
        {
            cmd.Dispose();
            con.Close();
        }
    }

Stored procedure code:

ALTER PROCEDURE [dbo].[uspAddNewPOrder] 
(
        @PODate datetime = null,
        @POVendorID int= null
)
AS
BEGIN
    INSERT INTO PurchaseOrders.[dbo].[tblPurchaseOrders]
    (
       PODate,
       POVendorID

    )
    VALUES
    (
       @PODate,
       @POVendorID
    )
END

Answer 1

You can use preprocessor directives to skip a sections of code executing given a condition (ex; during debugging in your case). Have a look at this MSDN link

#define DEBUG
public class YourClass 
{
    POrder po = new POrder();          
    po.PODate = DateTime.Parse(txtPODate.Text);
    Break point here ->

    po.POVendorID = int.Parse(ddPOVendors.SelectedValue);
    #if (!DEBUG)
        po.AddNewOrder(); //this will not be executed during debug.
    #endif
    ....      
}