A Real Time MySQL Connection Status Indicator?

Jul 9, 2011

I have a MDI form with twe menus - Login(&L) and Exit(&X) If I click the Login(&L) menu, a login form will pop up.

[Code]...

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Real Time Printer Status Information?

Jul 2, 2010

I need to get real time printer status information I need to the following information about a local printer

(1) Powered On/OFF

(2) status: warming, ready, paused, printing, error,

(3) paper / Roller status

(4) Ink / Toner status

(5) Errors of any

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MySQL Connector - How To Keep Connection Open With Status

Apr 25, 2010

I am developing an application with VB using the MySQL Connector Net [URL]. Now each time I go to load data in to a datagridview or in to text boxes on a form, I have to provide something along the lines of:

Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
'Create connection to MySQL Database
Dim conn As New MySqlConnection
Dim myCommand As New MySqlCommand
conn.ConnectionString = MySQLGlobal
[Code] .....

I think it would be better to leave the connection open to the MySQL database while the application is in use. That way I can just continue to execute queries of inserting and updating, without having the delay of the application having to reconnect. Is there a way where I can create some sort of background task in the application that monitors every few seconds that the connection is still active, and if not it tries to reconnect until its reconnected? I am trying to have it so that then I can code it to just do queries, and when the connection breaks - it disables the form until it is reconnected.

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Indeterminate Status Indicator Bar Animated Image?

Mar 23, 2010

Does somebody know where i can get Microsoft's status indicator bar animated image that has a progress bar on it that when it reaches the maximum it goes the other way round.

You can find a small version of it in :c:Program FilesMicrosoft Visual Studio 8Common7VS2005ImageLibraryVS2005ImageLibraryanimationsstatus_anim.gif and it is called
"Indeterminate status indicator bar".

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[2008] Indicator For Net Connection

Feb 6, 2009

Almost at the final hurdle of version 1 of my project. What i'd like to have is two indicators based on red and green lights Check for net connection and show green if available, red if not When sending data to mysql DB show green light I'm not sure if its possible but so far I have established this for the mysql data send but the data sends so quickly it changes like lightning.

[Code]....

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Find The Real Name Of The Server That Is Specified In The Connection String?

Oct 14, 2011

I have two databases, one on my local work computer and other on a server. Both have been created with Microsoft SQL Server 2008. I can access both of them with connection strings that contains names of the servers and some other information. However the names contain only the ip-number of the server. And I need the full name of the server and the instance created, separated with "" character. I can see them in my SQL management studio but I need to get them from VB-code.I created SqlConnection-class but it finds only the ip-addressed name. SqlSourceDataEnumerator won't do good because it finds all unnecessary server names that I don't need. How can I find the real name of the server that is specified in the connection string?

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Ftpwebrequest To Get The Status Of The Connection?

Apr 29, 2010

is there a way in ftpwebrequest to get the status of the connection? In VB6 using inet component you can use Statechanged, is there a similar way to do the same with ftpwebrequest?

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VS 2010 : Check For Sql Connection Status?

Jul 25, 2011

how do i check for sql connection status constantly. Timer?

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Check The Connection Condition Every Few Milliseconds And Reconnect Again To The Real Gateway ?

Jun 21, 2009

I share my internet connection with other users through LAN. There's some one who keeps cutting me off from time to time to increase his download speed.I know that there is some orders that can be written in the command line to reconnect to the internet after every cut but I don't know them.I started teaching myself programming under VB 2008 Express as a hobby few weeks ago. I was wondering if there is a way to write a program in VB to check the connection condition every few milliseconds and reconnect again to the real gateway till the attacker get bored.

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How To Detect Computer Network Connection Status

Jun 8, 2011

I have a problem when trying to detect the computers network connection status.

Here is the code I have used:
Dim IsAvalible As String = My.Computer.Network.IsAvailable
If IsAvalible = True Then Label1.Text = "Connected" Else <code>
<code>If IsAvalible = False Then</code> I <code>
Label1.Text = "Disconnected"</code></code>
End If [/ICODE] End If[/ICODE]

But for some even when the network is disconnected or the computers wifi is turned on I still get the result of "Connected". I think there something wrong with the code.

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VS 2008 System.Net.Socket Connection Status?

Dec 8, 2009

im trying to detect if the connection is still active upon trying to send or receive anything. Now I have checks in place if it's connected then it will send or receive however... it's saying it's connected when it is not connected... and therefore my program tries to send and receive and errors.

I am determining if it is ok to send and receive by using the Socket.Poll(-1, SelectMode.SelectWrite)

if it's true then im connected and data can be passed..This seems to always be true until I send something and it fails..How can I catch the socket not being connected before it fails upon sending or receiving?

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Real-time Spelling In .net?

May 24, 2010

Is there any open-source component for VB.NET that offers real-time spelling (i.e., as you type) much like word? I found some free and open source components but without that ability.

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How To Check Remote Server Connection Status Connected Or Not

Dec 27, 2011

I am Using Visual Basic 2010. I want to check My Connection Status. Connected or not in Remote Server Connection (SQL Server 2008 R2). How To Check Connection Status..?

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ODBC Tables - Showing Status Or Progress Of ADO Connection

Oct 25, 2010

I have a program that connects to an ODBC tables (3 of them) and I use select .... Left join etc Where ... etc. The issue I have is the connection takes about 20 to 25 seconds to complete. I'd like to create some status message so the user knows the system is not actually hung. Using Visual Studio 2010 Ultimate, VB.NET, ADO 2.7.

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Display Real Time On Form?

Apr 7, 2010

How can I display a running stopwatch on my form? I am creating a timer but I do not want to use the timer class.

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FTP Chat Update In Real Time?

Jun 15, 2011

I making a simple online chat using an ftp server by downloading and uploading text. I use a thread to update the chat log continuously. But it doesn't update in real time. Is there a way to create a server that clients can upload to and download from extremely quickly? How do programs like MSN messenger or better online multiplayer games do it?

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Get Cursor Position In Real Time?

Nov 17, 2009

What would be the proper way to get the cursor position while the mousebutton is held down? I've tried using a do while loop with a background worker, but it freezes up the application.

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How To Cache Real-time Data

Jan 14, 2009

I'm working on a windows forms application (.NET 4.0).My form contains a 'Fast Line' chart using the Microsoft chart control included in VS2010.The chart gets filled with about 20,000 datapoints.My application then starts receiving market data from a server via DDE (Dynamic Data Exchange) in real-time and adds it the chart.

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How To Send Real-time Data Over UDP

Sep 19, 2010

I have to send a sequence of video frames over UDP as fast and real-time as possible and while I got the basics working, I am running into all sorts of difficulties. Some of my goals:Data will normally be sent over dial-up (hence UDP instead of TCP), but also needs to support fast Ethernet.It's OK to occasionally drop frames (hence UDP instead of TCP).Need low latency. The frame the remote receives should be one that was recently sent (no more than a few frames waiting in buffers).I need to be able to detect the effective bandwidth so that I can compress the frames more or less to keep frame rate up.I break up frame data into one or more datagrams of about 500 bytes and each has a sequence number and other info. The receiver reassembles the entire frame and detects if any datagrams are missing.If the receiver detects more than a certain percentage of dropped frames (e.g. 50% over the last 10 frames), I send a TCP message to the sender to slow down by 50%. Sender than slowly increases speed by 5% each subsequent frame.Using System.Net.Sockets.UdpClient to send and receive the data.I have a separate TCP channel used for control messages back to sender.My main difficulty right now is detecting the effective bandwidth and dealing with latency, especially over dial-up (max ~4,000 bytes/sec). For example, if I try to send 100,000 bytes/second using TcpClient.Send() they ALL seem to arrive (no dropped datagrams) but with large latency by the time last datagram arrives. I think the TcpClient.Send() function is blocking until the buffer is able to send which messes up my current algorithm.

Can anybody point me to any sources of information for how to:Detect actual bandwidth over UDP.A better algorithm for dynamically adjusting bandwidth to suit the available pipe.Send data smoothly at the desired bandwidth.A way to detect and keep latency down to a minimum.I have been spinning my wheels over the last week and every time I solve one problem it seems another rears up is head.

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Make Real Time Chart?

Feb 22, 2011

Make real time chart?

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Mirror Real Time Text?

Apr 6, 2012

I created a form with MS Access with some dropdown menus and some check boxes. The main reason is for when the user select a check box or an option from the dropdown menu a specific phrase will appear on a Note box I created on the bottom of the form. Where I am having the problem is because I added a Text Box in Access where the user can type something in it. What I need is when something is typed inside of the text box the content should be mirrored inside of the Note Box on the bottom of the form. I was able to create the functions using VB for the dropdown menus and the check boxes but for the Free Form Text Box I dont know how to mirror the real time texting.

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Real Time Data Display?

Jan 11, 2012

are there any ways that i can extract my data from database and display it into my listbox in real-time? which means that whatever is updated in my database must immediately be inserted into the listbox without the need of refreshing or pressing any buttons. Immediate display.

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Real Time Data From App To Web Server?

Jun 24, 2012

methods/procedures for sending real time data from a VB.net app to a web server (asp.net) for real time display. My question relates to the best method to send the data from the desktop app and the best way to receive and handle the data on the server. I'm not asking for sample code, just some idea of what methods to research. I am currently using a text file upload method but I'm sure there is a more efficient way of achieving this.

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Real Time Monitoring Of Database?

Feb 12, 2009

I am converting an application to work with SQL.I need the application to monitor a specific table, so it can instantly pick up on changes.The sql server database is on the same machine.The table it needs to monitor is called MaintenanceRecords and it is inserted into via web service.I need to display a message in my VB project when an insert occurs in MaintenanceRecords table.

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Real Time Ticketing System

Jul 30, 2010

It is possible to create a real-time application where 2 or more pc will operate on it, for e.g, a cinema ticketing system, when a seat is occupied, all the other machine will be updated in realtime accordingly.

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Real-time Vehicle Animation In .NET?

Oct 14, 2009

I work for a company that produces accident reconstruction software. We have a vehicle dynamics program that realistically simulates the motion of a vehicle (position and rotation of car and steer angle of individual wheels, etc).

All the positions of the car are stored into an array called AMTN. The vehicle dynamics program can calculate positions at time steps finer than .005 secs (200 FPS).

I need to represent this data in real time, and so far I have not been able to accomplish this. I have tried doing this in Excel/VBA, VB6, and am currently trying to do it in VB.NET.

I have used a whole plethora of timers and counters as well as different methods of drawing lines on graphics linked to images linked to picture boxes, etc. My animation program writes/clears the screen correctly, but there is clearly some sort of lag in either the timer or writing method. I have scaled it down to 25 FPS and there is still a lag.

Here is an example of what I am trying to do with each tick of the timer:

Code:
Sub Timer1_Tick1(ByVal sender As Object, ByVal e As System.EventArgs) Handles Timer1.Tick
MyGraphic.Clear(Color.White)

[Code].....

With each tick of the timer, the graphic is cleared, lines representing each side of the car are drawn onto the graphic, and the picturebox is then assigned to the image, which is linked to the graphic. This is just like how your asteroids program works.

Do I need to change my method? Should I use sprites? Or would it be better for me to create images/bitmaps of the animation beforehand and simply flip through them with a timer?

I'm thinking that creating the images beforehand might work because I do not have to calculate the vehicle's position as it is predetermined by my AMTN matrix.

if there is a more efficient way of displaying my vehicle on the screen that would allow for greater FPS, etc.

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Returning A Real World Time Value?

Nov 2, 2009

I am having a problem trying to get a real time back from this code.

Code:
Public Sub Time()
Dim StartTime As TimeSpan = TimeSpan.Parse(txtStart.Text)
Dim EndTime As TimeSpan = TimeSpan.Parse(txtEnd.Text)

[Code]....

I am using a start time of 09:25 and an end time of 10:15 to test this with. I would like it to return 50, as 50 real world minutes went by. I am getting -1331385.

This is mostly someone else's code from a different forum. I have never used a TimeSpan method before and they keep telling me it works "like what I asked for".

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Updating Graphics In Real Time?

Nov 3, 2009

I've been a mangler of various types of code for a while now, I love doing PHP stuff but have found the need for some stand alone .exe stuff just recently and am using Microsoft Visual Basic 2008 express edition.Things have been going well so far with all my problems solved by Googling and since so many of the best solutions have come from here, I thought this would be a good place to come with this particular

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VS 2008 Zedgraph Real Time?

Dec 1, 2011

I'm wanting to do a real time graph, as a test i'm going to set up a timer to increment x and y values and then plot them every second on the graph.

I've got hold of Zedgraph, which is quite a nice add-in that i came across, does anyone have experience of doing this?

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Session ID - Saving Connection Status On Table Of User Logging In

Jan 17, 2012

I have a small application shared by 5 users. The application uses an Access 2007 database located on a local network server. My question is: Whenever a user logs into I save it's connection status on a table. When using OleDb is there a way of getting something like a unique "session id" for the user logging in?

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