Input string was not in a correct format. Textbox value-CodePudding

I have this method.

public static long? GetPayments(int PaymentId,string Reference)
        
{

          
            try
            {
                using (SqlConnection con = new SqlConnection(connstrig))
                {
                    con.Open();
                    DynamicParameters param = new DynamicParameters();
                    param.Add("@IDPayment", PaymentId);
                    param.Add("@Ref", Reference);
                    var result = con.Query<long?>("spc_PaymentStatusForCombo", param, commandType: CommandType.StoredProcedure).FirstOrDefault();
                    return result;
                }
            }
            catch (Exception exc)
            {
                ApplicationLog.WriteLog("spc_PaymentStatusForCombo", exc.Message, "Error");
                return null;
            }
        }

And when i call it this error is shown up:Input string was not in a correct format.

var result = 
GetPaymentsByPayId(Convert.ToInt32(txt_IdPayment.Text.Trim()), (txt_IdPayment.Text.Length > 0) ? (txt_OrderID.Text.Trim()) : string.Empty);

Can you help me please? Thank you

CodePudding user response：

The error is clear, the string input is not correct.

You can have this error for example if you try Convert.ToInt32("");

According to your method's structure, you should send an int value as the first parameter and the Convert.ToInt32(txt_IdPayment.Text.Trim()) must cause this exception.

Check what it returns txt_IdPayment.Text.Trim().

CodePudding user response：

var result = GetPaymentsByPayIdorMidasreference(Convert.ToInt32((txt_IdPayment.Text.Length > 0) ? txt_IdPayment.Text.Trim() : "0"), (txt_IdPayment.Text.Length > 0) ? (txt_OrderID.Text.Trim()) : string.Empty);