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09.12.2008 at 11:51AM PDT, ID: 23727419
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8.8

WndProc(ref Message m) - Need help interpreting WndProc() messages which are causing excessive calls to SQL

Asked by John500 in Microsoft Visual C#.Net, C# Programming Language

Tags:

Greetings,

I recently took over a project where the previous developer is gone.  I'm trying to discover why a particlar bug is happening.  Specifically, why an extra seven calls are made to a particular SQL procedure.  In short, the user clicks the OK button to input their status (time & work) which is seen in the following event:

 private void BValidate_Click(object sender, EventArgs e)
{  
        ...
        gone = this.SaveStatus(TBServers.Text);
        ...
}

SaveStatus() calls a stored procedure to push:

private bool SaveStatus(string system)
{
          ...
          s.Push(false);
          ...
}

Push calls a procedure to the database:

public void Push(bool flush)
{
          ...
          this.SaveToSQL(new SqlManager("Database_1"));
          ...
}

The whole thing returns back to WndProc():

protected override void WndProc(ref Message m)
        {
            if (m.Msg == SESSION_CHANGE_MESSAGE)
            {
                if (m.WParam.ToInt32() == SESION_LOCK_PARAM)
                {
                    Console.WriteLine("Session Locked");
                    _SessionLocked = true;
                }
                else if (m.WParam.ToInt32() == SESSION_UNLOCK_PARAM)
                {
                    Console.WriteLine("Session Unlocked");
                    _SessionLocked = false;
                }
            }
            else if (m.Msg == SESSION_QUERY_END)
            {
                _CanExit = true;
            }
            else if (m.Msg == Program.MessageID)
            {
                this.Activate();
                this.Focus();
            }

            base.WndProc(ref m);           //  THIS LINE IS THE ONLY LINE HIT FOR MESSAGE '537'
            return;
        }

I threw some print statements in the code to get a signature on program execution.  Below is the way it looks.  As you can see it also includes the CheckStatus() method which is not directly involved with the procedures above.  This CheckStatus() method is interacting with a queue.  I threw the queue methods at the bottom to provide an idea of what's happening.

I'm just looking for a little input to see what's going on - something, anything!!  

I think the Windows Messaging queue is being utilized in the event systems are down but I don't understand why WndProc() keeps triggering SaveToSQL as the result of CheckStatus()??

Thanks!!Start Free Trial 
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**********************  Push()  
PushCount: 1
**********************  SaveToSQL()  
Return:  StatusID: 152172  GroupID: 149555
**********************  CheckStatus()  
Returning status of: True
**********************  GetHash()  
Hash value: 1414245136-354201752-733547374-10437515811126611618
Hash code: -948327932
**********************  SaveToSQL()  
**********************   PopOut(bool force)  
**********************  CheckStatus()  
Returning status of: True
**********************  GetHash()  
Hash value: 1414245136-354202148-733547374-10437515811468324492
Hash code: 200803906
**********************  SaveToSQL()  
**********************  CheckStatus()  
Returning status of: True
**********************  GetHash()  
Hash value: 1414245136-1598071401-733547374-10437515811197482567
Hash code: -2127009094
**********************  SaveToSQL()  
**********************  CheckStatus()  
Returning status of: True
**********************  GetHash()  
Hash value: 1414245136-2095682454-733547374-1043751581-1284966584
Hash code: -1563909521
**********************  SaveToSQL()  
**********************  CheckStatus()  
Returning status of: True
**********************  GetHash()  
Hash value: 1414245136-522918619-733547374-1043751581-40202611
Hash code: -410101924
**********************  SaveToSQL()  
**********************  CheckStatus()  
Returning status of: True
**********************  GetHash()  
Hash value: 1414245136-1733307371-733547374-1043751581-501016020
Hash code: -1336051219
**********************  SaveToSQL()  
**********************  CheckStatus()  
Returning status of: True
**********************  GetHash()  
Hash value: 1414245136-774948317-733547374-10437515811031098386
Hash code: -2083604487
**********************  SaveToSQL()  
 
****************************************************************************************
 
namespace CCObjects.Status2G     // THE CONTROL THAT ACCEPTS USER INPUT
{
    interface IQueueObject
    {
        void Push(bool flush);
        bool CheckStatus();
        int SaveToSQL(SqlManager manager);
        string Hash
        {
            get;
        }
    }
}
 public string Hash
        {
            get
            {
                if (CheckStatus())
                    return Session.GetHash(user_, server_, tstarted_.ToString());
                return null;
            }
        }
 
 public bool CheckStatus()
        {
            if (user_.Length == 0 ||
                ((server_ != null) && server_.Length == 0))
                return false;
            return true;
        }
 
Keywords: WndProc(ref Message m) - Need h…
Title
1 Custom EventArgs
2 Excessive Locks
3 bool
4 void moveX, bool check3
5 problem with bool and string.
6 returning VARIANT_BOOL
 
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[+][-]09.14.2008 at 01:42PM PDT, ID: 22474217

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[+][-]09.15.2008 at 07:45AM PDT, ID: 22479088

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[+][-]09.15.2008 at 08:23AM PDT, ID: 22479552

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[+][-]09.15.2008 at 08:41AM PDT, ID: 22479759

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[+][-]09.15.2008 at 09:46AM PDT, ID: 22480441

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[+][-]09.16.2008 at 01:46AM PDT, ID: 22486157

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About this solution

Zones: Microsoft Visual C#.Net, C# Programming Language
Tags: VS 2005 C#
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Solution Provided By: _Katka_
Participating Experts: 1
Solution Grade: A
 
 
[+][-]09.16.2008 at 02:18PM PDT, ID: 22493385

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