Re: Question about using Zedgraph - C# Discussion Boards

Visual Studio and Multithreaded debugging

12-Dec-10 15:34

Guess they are just trying until getting an answer they like.

I know the language. I've read a book. - _Madmatt

Super Lloyd12-Dec-10 13:59

Super Lloyd

12-Dec-10 13:59

I have a multithreaded application with a few background thread polling various URLs.
When testing, it often happen that the URL are not working, and if I break on all exception I keep jumping to this annoying thread (and losing track of what I'm currently debugging)
I tried to "freeze" them, but they keep popping up!
Am I missing something?

A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
_________________________________________________________
My programs never have bugs, they just develop random features.

Re: Visual Studio and Multithreaded debugging

Not Active12-Dec-10 15:12

Re: Visual Studio and Multithreaded debugging

12-Dec-10 15:12

Have you read through this? Debugging Multithreaded Applications[^] or this? Walkthrough: Debugging a Multithreaded Application[^]

I know the language. I've read a book. - _Madmatt

Super Lloyd12-Dec-10 15:20

Super Lloyd

12-Dec-10 15:20

No, I haven't!
But I will! Wink | ;)

Thanks.

Question about using Zedgraph [modified]

Rafone12-Dec-10 3:51

12-Dec-10 3:51

If this isn't the right place for this question please let me know.
I was playing with one of the samples Multi Y Graph. I added a couple of varibles and execute it 4 different times via mouse click.
The first time through all works as expected. The second time through the x and y axis work correctly but the 3rd and 4th do not.
Can anyone point me in the right direction.
Here is the code I am using...

public partial class Form1 : Form
    {
        private static int clickCount = 0;
        //
        private LineItem myCurve;
        //
        public Form1()
        {
            InitializeComponent();
        }

        #region Graph Test

        // Call this method from the Form_Load method, passing your ZedGraphControl instance
        public void CreateChart(ZedGraphControl zgc)
        {

            // Get a reference to the GraphPane
            GraphPane myPane = zgc.GraphPane;

            // Set the titles and axis labels
            myPane.Title.Text = "Demonstration of Multi Y Graph";
            myPane.XAxis.Title.Text = "Time, s";
            myPane.YAxis.Title.Text = "Velocity, m/s";
            myPane.Y2Axis.Title.Text = "Acceleration, m/s2";

            // Make up some data points based on the Sine function
            PointPairList vList = new PointPairList();
            PointPairList aList = new PointPairList();
            PointPairList dList = new PointPairList();
            PointPairList eList = new PointPairList();

            // Fabricate some data values
            for (int i = 0; i < 30; i++)
            {
                double time = (double)i;
                double acceleration = 2.0;
                double velocity = acceleration * time;
                double distance = acceleration * time * time / 2.0;
                double energy = 100.0 * velocity * velocity / 2.0;
                aList.Add(time, acceleration);
                vList.Add(time, velocity);
                eList.Add(time, energy);
                dList.Add(time, distance);
            }
            if (clickCount == 1)
            {
                // Generate a red curve with diamond symbols, and "Velocity" in the legend
                LineItem myCurve = myPane.AddCurve("Velocity",
                   vList, Color.Red, SymbolType.Diamond);
                // Fill the symbols with white
                myCurve.Symbol.Fill = new Fill(Color.White);
                //
                // Make the Y axis scale red
                myPane.YAxis.Scale.FontSpec.FontColor = Color.Red;
                myPane.YAxis.Title.FontSpec.FontColor = Color.Red;
                // turn off the opposite tics so the Y tics don't show up on the Y2 axis
                myPane.YAxis.MajorTic.IsOpposite = false;
                myPane.YAxis.MinorTic.IsOpposite = false;
                // Don't display the Y zero line
                myPane.YAxis.MajorGrid.IsZeroLine = false;
                // Align the Y axis labels so they are flush to the axis
                myPane.YAxis.Scale.Align = AlignP.Inside;
                myPane.YAxis.Scale.Max = 100;
            }
            if (clickCount == 2)
            {
                // Generate a blue curve with circle symbols, and "Acceleration" in the legend
                myCurve = myPane.AddCurve("Acceleration",
                   aList, Color.Blue, SymbolType.Circle);
                // Fill the symbols with white
                myCurve.Symbol.Fill = new Fill(Color.White);
                // Associate this curve with the Y2 axis
                myCurve.IsY2Axis = true;
                //
                // Enable the Y2 axis display
                myPane.Y2Axis.IsVisible = true;
                // Make the Y2 axis scale blue
                myPane.Y2Axis.Scale.FontSpec.FontColor = Color.Blue;
                myPane.Y2Axis.Title.FontSpec.FontColor = Color.Blue;
                // turn off the opposite tics so the Y2 tics don't show up on the Y axis
                myPane.Y2Axis.MajorTic.IsOpposite = false;
                myPane.Y2Axis.MinorTic.IsOpposite = false;
                // Display the Y2 axis grid lines
                myPane.Y2Axis.MajorGrid.IsVisible = true;
                // Align the Y2 axis labels so they are flush to the axis
                myPane.Y2Axis.Scale.Align = AlignP.Inside;
                myPane.Y2Axis.Scale.Min = 1.5;
                myPane.Y2Axis.Scale.Max = 3;
            }
            if (clickCount == 3)
            {
                // Generate a green curve with square symbols, and "Distance" in the legend
                myCurve = myPane.AddCurve("Distance",
                   dList, Color.Green, SymbolType.Square);
                // Fill the symbols with white
                myCurve.Symbol.Fill = new Fill(Color.White);
                // Associate this curve with the second Y axis
                myCurve.YAxisIndex = 1;
                //
                // Create a second Y Axis, green
                YAxis yAxis3 = new YAxis("Distance, m");
                myPane.YAxisList.Add(yAxis3);
                yAxis3.Scale.FontSpec.FontColor = Color.Green;
                yAxis3.Title.FontSpec.FontColor = Color.Green;
                yAxis3.Color = Color.Green;
                // turn off the opposite tics so the Y2 tics don't show up on the Y axis
                yAxis3.MajorTic.IsInside = false;
                yAxis3.MinorTic.IsInside = false;
                yAxis3.MajorTic.IsOpposite = false;
                yAxis3.MinorTic.IsOpposite = false;
                // Align the Y2 axis labels so they are flush to the axis
                yAxis3.Scale.Align = AlignP.Inside;
            }
            if (clickCount == 4)
            {
                // Generate a Black curve with triangle symbols, and "Energy" in the legend
                myCurve = myPane.AddCurve("Energy",
                   eList, Color.Black, SymbolType.Triangle);
                // Fill the symbols with white
                myCurve.Symbol.Fill = new Fill(Color.White);
                // Associate this curve with the Y2 axis
                myCurve.IsY2Axis = true;
                // Associate this curve with the second Y2 axis
                myCurve.YAxisIndex = 1;
                //
                Y2Axis yAxis4 = new Y2Axis("Energy");
                yAxis4.IsVisible = true;
                myPane.Y2AxisList.Add(yAxis4);
                // turn off the opposite tics so the Y2 tics don't show up on the Y axis
                yAxis4.MajorTic.IsInside = false;
                yAxis4.MinorTic.IsInside = false;
                yAxis4.MajorTic.IsOpposite = false;
                yAxis4.MinorTic.IsOpposite = false;
                // Align the Y2 axis labels so they are flush to the axis
                yAxis4.Scale.Align = AlignP.Inside;
                yAxis4.Type = AxisType.Log;
                yAxis4.Scale.Min = 100;
            }
            // Show the x axis grid
            myPane.XAxis.MajorGrid.IsVisible = true;

            // Fill the axis background with a gradient
            myPane.Chart.Fill = new Fill(Color.White, Color.LightGoldenrodYellow, 45.0f);

            zgc.AxisChange();
            zgc.Invalidate();

        }

        #endregion

        private void toolStripButton1_Click(object sender, EventArgs e)
        {

            if (clickCount > 4 || clickCount == 4)
            {
                clickCount = 1;
            }
            else
            {
                clickCount = clickCount + 1;
            }
            CreateChart(zgc);

        }
    }

thanks in advance
rafone

Statistics are like bikini's...
What they reveal is astonishing ...
But what they hide is vital ...

-- Modified Sunday, December 12, 2010 12:28 PM

Not Active12-Dec-10 5:17

12-Dec-10 5:17

Read How to get an answer to your question[^] and with attention to #7. Following these guidelines will get better responses to your questions

I know the language. I've read a book. - _Madmatt

Rafone12-Dec-10 6:32

12-Dec-10 6:32

thanks for the tip

Statistics are like bikini's...
What they reveal is astonishing ...
But what they hide is vital ...

Thomas Krojer30-Dec-10 3:44

Thomas Krojer

30-Dec-10 3:44

Did you find the solution for keeping the size of your GraphPane?

If not, here is it:

You need 2 floats

private float myHeight = 0;
private float myWidth = 0;

and in your CreateChart, right after

GraphPane myPane = zgc.GraphPane;

you add:

if (myHeight == 0)
{
    myWidth = myPane.Rect.Size.Width;
    myHeight = myPane.Rect.Size.Height;
}
else
{
    if (myPane.Rect.Size.Width < myWidth)
    {
        myPane.Rect = new RectangleF(0, 0, myWidth, myHeight);
    }
}

Rafone30-Dec-10 5:16

30-Dec-10 5:16

Thank you Thomas. I was using a different work around but I like this way better.
Thanks again for your time and expertise.

rafone

Statistics are like bikini's...
What they reveal is astonishing ...
But what they hide is vital ...

Thomas Krojer12-Dec-10 23:42

Thomas Krojer

12-Dec-10 23:42

Try this in your button click event:

clickCount++;
if (clickCount > 4)
{
    clickCount = 1;
    zgc.GraphPane = new GraphPane();
}
CreateChart(zgc);

some work with the pane size remains ...

Rafone13-Dec-10 3:45

13-Dec-10 3:45

That did it...Thanks so much for your time

rafone

Statistics are like bikini's...
What they reveal is astonishing ...
But what they hide is vital ...

Thomas Krojer13-Dec-10 3:59

Thomas Krojer

13-Dec-10 3:59

you´re welcome

why not responding?

Jassim Rahma12-Dec-10 2:48

Jassim Rahma

12-Dec-10 2:48

I have a simple application with a timer (interval 5min) to read the simple data from mysql server.. The application is just one form but it's freezing after the code runs! why is that?

here is the full code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using MySql.Data;
using MySql.Data.MySqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Configuration;
using System.Threading;

namespace Cure_Server
{
    public partial class frmMain : DevExpress.XtraEditors.XtraForm
    {
        MySqlConnection sql_connection = null;
        MySqlCommand sql_command = null;
        MySqlDataAdapter sql_adapter;
        DataTable data_table = null;
        MySqlDataReader sql_reader = null;
        DataSet data_set = null;

        public public_class public_var = new public_class();

        const int MF_BYPOSITION = 0x400;

        [DllImport("User32.dll")]
        private static extern int RemoveMenu(IntPtr hMenu, int nPosition, int wFlagS);

        [DllImport("User32.dll")]
        private static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);

        [DllImport("User32.dll")]
        private static extern int GetMenuItemCount(IntPtr hWnd);

        public int result_rows;

        public frmMain()
        {
            InitializeComponent();
        }

        private void perform()
        {
            get_statistics_summary();
            send_sms();
        }

        private void get_statistics_summary()
        {
            progressRunning.Visible = true;

            try
            {
                // sql_connection = new SqlConnection("Data Source=.\\SQLEXPRESS;initial catalog=shefa;integrated security=true");
                sql_connection = new MySqlConnection(ConfigurationManager.ConnectionStrings["SQLdb"].ConnectionString);
                sql_connection.Open();
                sql_command = new MySqlCommand("SELECT COUNT(*) AS total_files FROM persons", sql_connection);
                sql_command.CommandType = CommandType.Text;
                sql_reader = sql_command.ExecuteReader();

                if (sql_reader.Read())
                {
                    lblTotalFiles.Text = sql_reader["total_files"].ToString();
                }

                sql_reader.Close();

                sql_command = new MySqlCommand("SELECT COUNT(*) AS total_appointments FROM appointments", sql_connection);
                sql_command.CommandType = CommandType.Text;
                sql_reader = sql_command.ExecuteReader();

                if (sql_reader.Read())
                {
                    lblTotalAppointments.Text = sql_reader["total_appointments"].ToString();
                }
            }
            catch (Exception exp)
            {
                return;
            }
            finally
            {
                if (sql_reader != null) sql_reader.Close();
                if (sql_connection != null)
                {
                    if (sql_connection.State == ConnectionState.Open)
                        sql_connection.Close();
                }
            }

            progressRunning.Visible = false;
        }

        private void send_sms()
        {
            progressRunning.Visible = true;

            try
            {
                sql_connection = new MySqlConnection(ConfigurationManager.ConnectionStrings["SQLdb"].ConnectionString);
                sql_connection.Open();
                sql_command = new MySqlCommand("sp_send_pending_sms", sql_connection);
                sql_command.CommandType = CommandType.StoredProcedure;
                sql_reader = sql_command.ExecuteReader();

                while (sql_reader.Read())
                {
                    lblTimer.Text = sql_reader["sms_queue_id"].ToString();
                }
            }
            catch (Exception exp)
            {
                return;
            }
            finally
            {
                if (sql_reader != null) sql_reader.Close();
                if (sql_connection != null)
                {
                    if (sql_connection.State == ConnectionState.Open)
                        sql_connection.Close();
                }
            }

            progressRunning.Visible = false;
        }

        private void frmMain_Load(object sender, EventArgs e)
        {
            this.Cursor = Cursors.WaitCursor;

            IntPtr hMenu = GetSystemMenu(this.Handle, false);
            int menuItemCount = GetMenuItemCount(hMenu);
            RemoveMenu(hMenu, menuItemCount - 1, MF_BYPOSITION);

            timerMain.Interval = Convert.ToInt32(ConfigurationManager.AppSettings["ServerTimerInterval"]);

            // public_var.get_system_properties();
        }

        private void btnEmailTemplates_Click(object sender, EventArgs e)
        {
            frmEmailTemplates EmailTemplatesForm = new frmEmailTemplates(public_var);
            EmailTemplatesForm.ShowDialog();
        }

        private void frmMain_Shown(object sender, EventArgs e)
        {
            this.Cursor = Cursors.WaitCursor;

            timerMain.Start();

            this.Cursor = Cursors.Default;
        }

        private void btnConnectonFile_Click(object sender, EventArgs e)
        {

        }

        private void timerMain_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            // lblTimer.Text = DateTime.Now.ToString();
            backgroundWorkerSMS.RunWorkerAsync();

            // send_sms();
        }

        private void btnOptions_Click(object sender, EventArgs e)
        {
            timerMain.Stop();

            frmOptions OptionsForm = new frmOptions();
            DialogResult options_form = OptionsForm.ShowDialog();

            if (options_form == DialogResult.OK)
            {
                timerMain.Interval = Convert.ToInt32(ConfigurationManager.AppSettings["ServerTimerInterval"]);
            }

            timerMain.Start();
        }

        private void backgroundWorkerSMS_DoWork(object sender, DoWorkEventArgs e)
        {
            timerMain.Stop();

            perform();
        }

        private void backgroundWorkerSMS_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            backgroundWorkerSMS.Dispose();
            timerMain.Start();
        }
    }
}

Luc Pattyn12-Dec-10 3:04

Luc Pattyn

12-Dec-10 3:04

jrahma wrote:
progressRunning.Visible = true;

jrahma wrote:
lblTimer.Text = ...

jrahma wrote:
lblTotalAppointments.Text =

study me[^]

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

Not Active12-Dec-10 3:43

12-Dec-10 3:43

Given that previously you have posted very basic question and this recent post (http://www.codeproject.com/Messages/3695788/app-Config-deployment.aspx[^]) where you don't even know how to use the app.config file I very much doubt this is even your code. If I'm incorrect, then I apologize, yet the facts don't seem to add up.

As has been noted before you have asked a considerable amount of basic questions and you have been given the advice to read some books or take a class and learn the basics properly, not stumbling around. Please take this advice.

We are here to help, yet it gets very annoying to be peppered with such basic questions time and time again when you should take some responsibility to learn the trade.

I know the language. I've read a book. - _Madmatt

Luc Pattyn12-Dec-10 5:46

Luc Pattyn

12-Dec-10 5:46

Hear hear.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

Jassim Rahma13-Dec-10 2:49

Jassim Rahma

13-Dec-10 2:49

Hi,

it's working fine now.. Thanks BUT there is another problem related to the CPU usage..

I posted the problem here:

http://www.codeproject.com/Messages/3696614/CPU-jumps-from-16-to-78.aspx

Thanks

Not Active13-Dec-10 3:28

How can I filter certain messages in log4net

13-Dec-10 3:28

Did you even read my response? Apparently not. Stop asking questions here and go learn. Mad | :mad:

I know the language. I've read a book. - _Madmatt

Berlus11-Dec-10 23:54

Berlus

11-Dec-10 23:54

Hello,

I'm using a 3rd party that uses log4net in order to log its messages.

I'm interested only on those messages that do not include "UnwantedTextExample".

How can I configure the config.log4net in order to not log those messages?

Thanks,
Berlus

fjdiewornncalwe12-Dec-10 3:50

fjdiewornncalwe

12-Dec-10 3:50

I work with some legacy applications that still log to flat file with log4net as well. As I can't change the logging from the source side, I have resorted to opening the logs in Excel(as ours are comma delimited) and then I simply use the data processing features (Sorting and Filter) to find the entries I'm interested in. It can be quite frustrating, I know, but that's why we've been converting everything to use database error logging instead.

I wasn't, now I am, then I won't be anymore.

Manfred Rudolf Bihy12-Dec-10 4:39

Manfred Rudolf Bihy

12-Dec-10 4:39

For logfile analysis you might want to try Chainsaw
Read here: http://www.google.com/search?sitesearch=*.apache.org&q=loggin#sclient=psy&hl=de&sitesearch=*.apache.org&q=logging+log4net+analysis+chainsaw

Best Regards,

Manfred

Berlus12-Dec-10 11:04

Berlus

12-Dec-10 11:04

I am afraid i didn't make myself clear. I'm trying to filter the log messages ONLINE, not after the program has ended. I'm trying to reduce the size of the log files that get created each run.

thanks,
Belrus