if someone could help me identify the problem please. [modified] - C# Discussion Boards

Re: Little conversion problem from visual basic to c#

0x3c023-Jul-09 7:48

23-Jul-09 7:48

Okay, the first four lines are arrays. That mean that you can refer to them like you do in VB, but the brackets need to be square [] instead of curly (). XOR is a logical operator, the equivalent in C# is the ^ symbol. The method call is the same. Don't forget the semicolons at the end of every statement

As to what happens on a high level, you simply fill a small array with numbers and send it over a serial port

Between the idea
And the reality
Between the motion
And the act
Falls the Shadow

Re: Little conversion problem from visual basic to c#

PIEBALDconsult23-Jul-09 7:58

PIEBALDconsult

23-Jul-09 7:58

Computafreak wrote:
instead of curly ().

Parentheses () aren't curly, braces {} are.

Re: Little conversion problem from visual basic to c#

0x3c023-Jul-09 8:02

0x3c0

23-Jul-09 8:02

Ah, my terminology is a bit off. To me, () are curly, [] are square, {} are squiggly. Unsurprisingly, I feel rather silly when I talk about programming syntax Blush | :O

Between the idea
And the reality
Between the motion
And the act
Falls the Shadow

Re: Little conversion problem from visual basic to c#

Member 474292223-Jul-09 8:09

Member 4742922

23-Jul-09 8:09

i now have this:

ArrayList al = new ArrayList();
     al[1] = 8;
     al[2] = 1;
     al[3] = 3;
     al[4] = 8 ^ 1 ^ 4;

     serialPort1.Open();
     serialPort1.Write(al, 0, 4);
     serialPort1.Close();

but it returns this error:
Error 2 Argument '1': cannot convert from 'System.Collections.ArrayList' to 'byte[]' C:\Users\Clean Totaal\AppData\Local\Temporary Projects\WindowsFormsApplication1\Form1.cs 31 31 WindowsFormsApplication1
What is going wrong?

Re: Little conversion problem from visual basic to c#

OriginalGriff23-Jul-09 8:17

OriginalGriff

23-Jul-09 8:17

Using your example above try (remember arrays are zero based in c#, not 1):

byte[] ab = new byte[4];
ab[0] = 8;
ab[1] = 1;
ab[2] = 3;
ab[3] = ab[0] ^ ab[1] ^ ab[2];
serialPort1.Open();
serialPort1.Write(ab, 0, 4);
serialPort1.Close();

No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.

This message is made of fully recyclable Zeros and Ones

Re: Little conversion problem from visual basic to c#

Member 474292223-Jul-09 8:25

Member 4742922

23-Jul-09 8:25

Thank YOU its working!! Big Grin | :-D

Re: Little conversion problem from visual basic to c#

PIEBALDconsult23-Jul-09 8:37

PIEBALDconsult

23-Jul-09 8:37

byte[] al = new byte [ 4 ] ;

if someone could help me identify the problem please. [modified]

DinoRondelly23-Jul-09 7:20

DinoRondelly

23-Jul-09 7:20

Here is my Code

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Data.Odbc;
using My;
using System.Data;

namespace FirstCitizensBank_DropOffReport
{
    class Program : MyGeneral
    {
        public static string dataBasePath;
        public static string dbname;
        public static string strconn;
        static void Main(string[] args)
        {
            StartUp("", "", true);
            dataBasePath = ConfigPath + "Empathic\\FirstCit\\";
            dbname = "Bank";
            strconn = "";


            try
            {
                string repname = dataBasePath + "Reports\\Dropoff" + myDate.ToString("yyyyMMdd") + ".xls";

                DateTime enddate = myDate.AddDays(-myDate.Day);
                DateTime startdate = enddate.AddDays(1).AddMonths(-1);
                MyWriteExcel exl = new MyWriteExcel(repname, dataBasePath + "Reports\\Templates\\DropoffTemp.xls");

                //dbname = dbname + myDate.ToString("yyMM");
                //WriteMonth(ref exl, startdate, enddate, "B");

                enddate = startdate.AddDays(-1);
                //startdate = startdate.AddMonths(-1);
                dbname = "Bank";
                dbname = dbname + myDate.AddMonths(-1).ToString("yyMM");
                WriteMonth(ref exl, startdate, enddate, "C");

                enddate = startdate.AddDays(-1);
                startdate = startdate.AddMonths(-2);
                dbname = "Bank";
                dbname = dbname + myDate.AddMonths(-2).ToString("yyMM");
                WriteMonth(ref exl, startdate, enddate, "D");

                exl.Save();
                exl.Close();

                MyEmail email = new MyEmail("", "First Citizens Bank Dropoff Report", "Please see attached report");
                email.AddAttachment(repname);
                email.AddBCC(CommonEmail);
                email.sendEmail();

                endProgram();
            }
            catch (Exception e)
            {
                WriteToLog("@Failed: " + e.ToString());

                HelpPage(e.ToString(), "Failed");
            }

        }

        public static void WriteMonth(ref MyWriteExcel exl, DateTime startdate, DateTime enddate, string column)
        {
            string sql = "select count(*) as total, sum(iif(mid(CALLSTATUS, 1, 2) >= '06', 1, 0)) as entered, sum(iif(DONE is not null, 1, 0)) as completed"
                    + " from " + dbname + " where startdate >= " + startdate.ToString("yyyyMMdd") + " and startdate <= " + enddate.AddMonths(+1).ToString("yyyyMMdd")
                    + " and stopdate is not null";
            OdbcConnection conn = new OdbcConnection(strconn);
            conn.Open();
            OdbcCommand cmd = new OdbcCommand(sql, conn);
            OdbcDataReader dr = cmd.ExecuteReader();

            dr.Read();

            int total;
            int entered;
            int completed;
            int abandoned;

            if (!(int.TryParse(dr["total"].ToString(), out total) && int.TryParse(dr["entered"].ToString(), out entered) && int.TryParse(dr["completed"].ToString(), out completed)))
            {
                Exception myex = new Exception("Failed to convert one of the counts to an integer");
                throw myex;
            }
            dr.Close();
            dr.Dispose();

            abandoned = entered - completed;


            sql = "select avg(duration) as avgdur from " + dbname + myDate.AddMonths(-1).ToString("yyMM") + " where startdate >= " + startdate.ToString("yyyyMMdd") + " and startdate <= " + enddate.AddMonths(+1).ToString("yyyyMMdd")
                + " and stopdate is not null and DONE is not null";
            cmd.CommandText = sql;
            dr = cmd.ExecuteReader();
            dr.Read();
            double avgcompleted;
            if (!double.TryParse(dr["avgdur"].ToString(), out avgcompleted))
            {
                Exception myex = new Exception("Failed to convert one of the average duration to a double");
                throw myex;
            }
            dr.Close();
            dr.Dispose();

            sql = "select avg(duration) as avgdur from " + dbname + " where startdate >= " + startdate.ToString("yyyyMMdd") + " and startdate <= " + enddate.AddMonths(+1).ToString("yyyyMMdd")
                + " and stopdate is not null and DONE is null";
            cmd.CommandText = sql;
            dr = cmd.ExecuteReader();
            dr.Read();
            double avgdrop;
            if (!double.TryParse(dr["avgdur"].ToString(), out avgdrop))
            {
                Exception myex = new Exception("Failed to convert one of the average duration to a double");
                throw myex;
            }
            dr.Close();
            dr.Dispose();

            sql = "select callstatus, count(*) as num from " + dbname + " where startdate >= " + startdate.ToString("yyyyMMdd") + " and startdate <= " + enddate.AddMonths(+1).ToString("yyyyMMdd")
                + " and stopdate is not null group by callstatus";
            cmd.CommandText = sql;
            dr = cmd.ExecuteReader();

            int linenum = 3;
            exl.WriteCell(column + linenum.ToString() + ":" + column + linenum.ToString(), total);

            linenum++;
            exl.WriteCell(column + linenum.ToString() + ":" + column + linenum.ToString(), entered);

            linenum++;
            exl.WriteCell(column + linenum.ToString() + ":" + column + linenum.ToString(), completed);

            linenum++;
            exl.WriteCell(column + linenum.ToString() + ":" + column + linenum.ToString(), abandoned);

            int minutes = ((int)Math.Round(avgcompleted, 0) / 60);
            int seconds = ((int)Math.Round(avgcompleted, 0) % 60);
            string line = minutes.ToString() + ":" + seconds.ToString();
            linenum++;
            exl.WriteCell(column + linenum.ToString() + ":" + column + linenum.ToString(), line);

            minutes = ((int)Math.Round(avgdrop, 0) / 60);
            seconds = ((int)Math.Round(avgdrop, 0) % 60);
            line = minutes.ToString() + ":" + seconds.ToString();
            linenum++;
            exl.WriteCell(column + linenum.ToString() + ":" + column + linenum.ToString(), line);

            object[] zerofill = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
            exl.WriteRange(column + "11:" + column + "38", zerofill);
            while (dr.Read())
            {
                if (dr["callstatus"].ToString() == "00_SurveyInt")
                    linenum = 11;
                if (dr["callstatus"].ToString() == "01_SurveyCode")
                    linenum = 12;
                if (dr["callstatus"].ToString() == "02_Visit_Date")
                    linenum = 13;
                if (dr["callstatus"].ToString() == "03_Visit_Time")
                    linenum = 14;
                if (dr["callstatus"].ToString() == "04_Purpose_Visit")
                    linenum = 15;
                if (dr["callstatus"].ToString() == "06.1_First_Impres")
                    linenum = 16;
                if (dr["callstatus"].ToString() == "06.2_OV_SatB")
                    linenum = 17;
                if (dr["callstatus"].ToString() == "06.3_OV_RecB")
                    linenum = 18;
                if (dr["callstatus"].ToString() == "06.4_OV_Value")
                    linenum = 19;
                if (dr["callstatus"].ToString() == "06.5_Trans_Time")
                    linenum = 20;
                if (dr["callstatus"].ToString() == "06.5Service")
                    linenum = 21;
                if (dr["callstatus"].ToString() == "06.6_Employee_Pro")
                    linenum = 22;
                if (dr["callstatus"].ToString() == "06.7_Employee_Acc")
                    linenum = 23;
                if (dr["callstatus"].ToString() == "06.8_Employee_Thank")
                    linenum = 24;
                if (dr["callstatus"].ToString() == "06.9_Employee_Sat")
                    linenum = 25;
                if (dr["callstatus"].ToString() == "06.9.1_Employee_WOW")
                    linenum = 26;
                if (dr["callstatus"].ToString() == "06.9.2_Demographics")
                    linenum = 27;
                if (dr["callstatus"].ToString() == "06.9.3_Gender")
                    linenum = 28;
                if (dr["callstatus"].ToString() == "06.9.4_Age")
                    linenum = 29;
                if (dr["callstatus"].ToString() == "07_Draw")
                    linenum = 30;
                if (dr["callstatus"].ToString() == "13_Phone")
                    linenum = 31;
                if (dr["callstatus"].ToString() == "12_Rules")
                    linenum = 32;
                if (dr["callstatus"].ToString() == "11_ContestRules")
                    linenum = 33;
                if (dr["callstatus"].ToString() == "08_Exit_System")
                    linenum = 34;
                if (dr["callstatus"].ToString() == "10_Kicked")
                    linenum = 35;
                if (dr["callstatus"].ToString() == "Repeat")
                    linenum = 36;
                if (dr["callstatus"].ToString() == "Start")
                    linenum = 37;
                if (dr["callstatus"].ToString() == "06_Instruc_1")
                    linenum = 38;

                    exl.WriteCell(column + linenum.ToString() + ":" + column + linenum.ToString(), dr["num"]);
                }
            }
        }
    }

Here are my expected results
From the first DB
00_SurveyInt 172
01_SurveyCode 641
02_Visit_Date 146
03_Visit_Time 18
04_Purpose_Visit 7
06.1_First_Impres 6
06.2_OV_SatB 64
06.3_OV_RecB 10
06.4_OV_Value 5
06.5Service 2
06.5_Trans_Time 5
06.6_Employee_Pro 14
06.7_Employee_Acc 10
06.8_Employee_Thank 2
06.9.1_Employee_WOW 5
06.9.3_Gender 4
06.9.4_Age 4
06.9_Employee_Sat 3
06_Instruc_1 4
07_Draw 4
08_Exit_System 1360
10_Kick 9
11_ContestRules 3
12_Rules 14
13_Phone 31
Repeat 1
Start 21

and these are the results the process is returning
Survey Intro 172
Survey Entry Code 641
Visit_Date 146
Visit_Time 18
Purpose_Visit 7
First_Impres 6
OV_SatBranch 64
OV_RecBranch 10
OV_Value 5
Trans_Time 5
Service 2
Employee_Pro 14
Employee_Acc 10
Employee_Thank 2
Employee_Sat 3
Employee_WOW 5
Demographics 0
Gender 4
Age 4
Draw 4
Phone 31
Rules 14
Contest Rules 3
Exit System 9
Kicked Out 0
Repeat 1
Start 21
Instructions 4

I cant figure out why these arent matching up if someone could help me identify the problem please.

modified on Thursday, July 23, 2009 1:43 PM

Re: if someone could help me identify the problem please.

Nagy Vilmos23-Jul-09 7:27

Nagy Vilmos

23-Jul-09 7:27

whwen comparing two strings, you should use the

s1.Equals(s2)

. The code s1 == s2 just returns true if they are the same object not the same value.

Panic, Chaos, Destruction.
My work here is done.

Re: if someone could help me identify the problem please.

PIEBALDconsult23-Jul-09 7:30

PIEBALDconsult

23-Jul-09 7:30

Where does it say that? Do you have proof?

Why do people still believe this? WTF | :WTF:

P.S. See: http://msdn.microsoft.com/en-us/library/system.string.op_equality(VS.71).aspx[^]

"
This operator is implemented using the Equals method, which means the comparands are tested for a combination of reference and value equality. The comparison is case-sensitive.
"

Therefore == == Equals !

Re: if someone could help me identify the problem please.

Nagy Vilmos23-Jul-09 7:46

Nagy Vilmos

23-Jul-09 7:46

I was sure that it was the case. I have just chickened and according to Troelsen, == and .equals both compare content. Blush | :O

I think it's wrong, but going by what Luc says below it makes some sort of sense. I have java as well as C#, there it is absolutly == comnpares references and .equals() compares values.

Panic, Chaos, Destruction.
My work here is done.

Re: if someone could help me identify the problem please.

PIEBALDconsult23-Jul-09 7:48

PIEBALDconsult

23-Jul-09 7:48

Well .net is better than Java. (duh!) Big Grin | :-D

Re: if someone could help me identify the problem please.

LetMeFinclOut23-Jul-09 12:15

LetMeFinclOut

23-Jul-09 12:15

PIEBALDconsult wrote:
Therefore == == Equals !

Re: if someone could help me identify the problem please. [modified]

Luc Pattyn23-Jul-09 7:33

Luc Pattyn

23-Jul-09 7:33

Aren't all strings "interned" in .NET, i.e. two strings holding the same value actually point to a single instance?

[EDIT] No, they are not (see this little article[^]). However, string1==string2 and string.Equals(string1,string2) both call the string.Equals method and generate the correct result no matter what. [/EDIT]

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.

modified on Friday, September 4, 2009 1:02 PM

Re: if someone could help me identify the problem please.

Nagy Vilmos23-Jul-09 7:46

Nagy Vilmos

23-Jul-09 7:46

head is bowed.

Panic, Chaos, Destruction.
My work here is done.

Re: if someone could help me identify the problem please.

Curtis Schlak.23-Jul-09 18:02

Curtis Schlak.

23-Jul-09 18:02

Depending on your point of view, fortunately or unfortunately, not all strings in the CLI are interned. Essentially, any string loaded with the MSIL ldstr command is interned, and anything programatically interned is interned. For example, if we run the following code

string interned1 = "hello";
string interned2 = "hello";
string notinterned = new String("hello".ToCharArray());
string interned4 = string.Intern(notinterned);
Console.WriteLine(RuntimeHelpers.GetHashCode(interned1));
Console.WriteLine(RuntimeHelpers.GetHashCode(interned2));
Console.WriteLine(RuntimeHelpers.GetHashCode(notinterned));
Console.WriteLine(RuntimeHelpers.GetHashCode(interned4));

then we get the corresponding output

As you can see from the output, the interned strings all show the same "memory location" while the programatically constructed string shows a different location.

(.NET 3.5) In terms of string equality, though, the override of operator== calls the public static string.Equals(string, string) method which calls a private static method to determine equality. string.Equals(string) calls the private static method directly.

"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty

Re: if someone could help me identify the problem please.

Adam R Harris23-Jul-09 7:50

Adam R Harris

23-Jul-09 7:50

Ummm .... they both work.
Case in point;

 static void Main(string[] args)
 {
     string strTest1 = "This is a test";
     string strTest2 = "This is a second test";

     Console.WriteLine("strTest1 == strTest2 : {0}", strTest1 == strTest2);
     Console.WriteLine("strTest1 == \"This is a test\" : {0}", strTest1 == "This is a test");
     Console.WriteLine("strTest1.Equals(strTest2) : {0}", strTest1.Equals(strTest2));
     Console.WriteLine("strTest1.Equals(\"This is a test\") : {0}", strTest1.Equals("This is a test"));
     Console.ReadLine();
}

output

strTest1 == strTest2 : False
strTest1 == "This is a test" : True
strTest1.Equals(strTest2) : False
strTest1.Equals("This is a test") : True

If at first you don't succeed ... post it on The Code Project and Pray.

Re: if someone could help me identify the problem please.

Luc Pattyn3-Sep-09 5:17

Luc Pattyn

3-Sep-09 5:17

Hi Nagy,

Nagy Vilmos wrote:
s1 == s2 just returns true if they are the same object

as others already told you, this is completely wrong.
I did some investigation, triggered both by this thread and by the lean-and-mean competition, and that resulted in this little article of mine[^].

Smile | :)

Luc Pattyn

Badger | [badger,badger,badger,badger...]

Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you.

Re: if someone could help me identify the problem please.

PIEBALDconsult23-Jul-09 7:49

PIEBALDconsult

23-Jul-09 7:49

Dunno, step through it with the debugger and see what's actually happening.

Re: if someone could help me identify the problem please.

DinoRondelly23-Jul-09 8:32

DinoRondelly

23-Jul-09 8:32

I have solved this problem and appreciate all the reply's. The problem was that if a call status came back that wasn't in one of my if statements the program was defaulting to the last line number used since i am not increamenting line numbers.

I am sure this is a rookie mistake and i thank you.

Re: if someone could help me identify the problem please.

PIEBALDconsult23-Jul-09 12:45

PIEBALDconsult

23-Jul-09 12:45

Yeah, see? Use a switch instead.

How to inject code to assembly (inject new class)?

hdv21223-Jul-09 7:14

hdv212

23-Jul-09 7:14

Hi Is there any way to inject new class to assemby ?
The Reflexil is good tool to assembly manipulation, but it works fine when i change the existing code or add some code to existing method, when i add new class to my assembly by reflexil, the output assembly does not works and throw exception. how can i do that ?
thanks

Pass data between two child forms

Saamir23-Jul-09 6:56

Saamir

23-Jul-09 6:56

Hi guys!
Please help, I am trying to pass data from form1 to form2 using a datagridview cell click event (passing data from datagridview1 in form1 to datagridview2 in form2)

It is working fine if I open form1 and then form2, if I open form2 before form1 then it doesn't because it can't capture instance of form1 to access it.

Here is what I am doing presently:
in Parent (MDI), I have a public form instance for form1, I use that when I open form1 and then pass that instance to form2 when I open it.

This is what I am doing:

In Parent:
public frmGrid1 frm1;
....
//Form1 click event in parent
frm1 = new frmGrid1(m_ADBCnn, 1, notWorkedToolStripMenuItem.Text);
frm1.MdiParent = this;
frm1.Show();
....
//Form2 click event in parent
frm2 = new frmGrid2(frm1,m_ADBCnn,1,presentToolStripMenuItem.Text);
frm2.Show();
frm2.MdiParent = this;

I then assign frm1 in the constructor of form2 as follows:

private frmGrid1 frm1;
public frmGrid2(frmGrid1 f1)
{
try
{
InitializeComponent();
frm1 = f1;
}
catch (Exception ex)
{
MessageBox.Show("Failed on initialization: " + ex.Message);
}
}

Again, this works if I open form1 before form2. How can I retrieve frm1 from frm2 if it is null?

Please help

Sameer

Re: Pass data between two child forms

musefan23-Jul-09 7:00

musefan

23-Jul-09 7:00

Best way to do this would be with events[^], each form will have an event that fires when the cell is clicked (or whatever) the parent form then listens for this event. When it is fired then the parent form can receive the data from one form (through event args or property) and then pass the data to the other form (through method or property)

Life goes very fast. Tomorrow, today is already yesterday.

Re: Pass data between two child forms

Saamir23-Jul-09 7:14

Saamir

23-Jul-09 7:14

Hi Musefan,
Thank you for your prompt response. Pardon me but I have never used custom events, is there any way you can show me an example, I will appreciate it.

Thanks

Sameer

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.