Status Updating While Reading Standard Output?
Dec 23, 2010
I use the following code to read the standard output from a command line application from a main winforms application, and then I use the BeginInvoke code to update a textbox with the status. What I am not sure about is if I can have a smoother process. The code loads up about 10 to 20 text inserts, and those are all seen at once... not a smooth process where each status is updated. Any thoughts on if the reading of the standard output and/or the beginvoke code could seem more smooth to the user?
Delegate Sub UpdateUIStatusHandler(ByVal StatusMessage As String, ByVal JobName As String, ByVal Direction As String)
Dim ProcessJob As New ProcessStartInfo(GSyncExe, RunJob)
ProcessJob.UseShellExecute = False : ProcessJob.CreateNoWindow = True : ProcessJob.RedirectStandardOutput = True : ProcessJob.RedirectStandardError
[code]....
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Dec 15, 2011
I build program to launch application(launch application can as local profile or can as network credentials) using Advapi32 "Create Process WithLogonW".but I got the problem, I can't capture message of standard output(Stdout) and Standard Error(stderr).could everyone help me how to capture message and the code?
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Jun 30, 2011
From my application I need to run a command and parse the output. I can do this with no problem but I don't want the command to be displayed. I hoped WindowStyle = ProcessWindowStyle.Hidden would work but it doesn't. Take the sample code below for example. It works fine but the command window still visibly opens and closes very quickly and I need it to never show its ugly face. How can I fix this?
[Code]...
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Jun 16, 2010
I am having trouble redirecting standardoutput and standarderror from a command line program that dumps a lot of numbers to the screen. I've looked through a lot of similar posts and think my code matches what it should be doing (asynchronous reading of the data with appropriate invokes for writing to the log text box) but it still just hangs the application until my p.WaitForExit times out. Once it times out and I kill the process, a chunk (but not all) of the data is written to the textbox in from the OutputDataReceived event handler. Any ideas what is going on here? I've seen some posts regarding buffer size, but that apparently is fixed (i.e. I can set a buffer size of 1 and receive every char). Below is my function to execute the process and two relevant event handlers.
Private Function ExecuteWallGen() As Boolean
Dim bResult As Boolean = False
Dim szExec = Me.ExecutablePath & Me.WallGenExecutable
[code]...
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Dec 18, 2010
I am trying to redirect the output of a c program which generates output in the console. I can redirect the output once the process exits. But is there the way to redirect the output as and when there is some output in the shell window? I require this to make it understandable that the program is running and since different steps of the c code may take, say 10-15 minutes to run.
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Jun 29, 2009
My application periodically starts console programs with process.start. I need to monitor the output of the programs in "realtime".
For example, the program writes the following text to the console: Processing...............
Every second or so a new dot appears to let the user know the program is still processing. However,... until the programm outputs a CR/LF, I am not able to retrieve the standard output of the program (while it is still running).
What can I do to get the output in realtime for - let's say - piping it into a database for instance in VB.NET?
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Aug 15, 2011
I wonder if it is possible to write and capture errors when running a script to PowerShell.In my case I am using the following code:[code]' add an extra command to transform the script output objects into nicely formatted strings' remove this line to get the actual objects that the script returns, for example, see the script "Get-Process" returns a collection.[code]
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Feb 26, 2010
i have a form app that needs to get the output of a console app in real time.or as close to it as possible.[code]that is my code so far, and it seems to work great for everything other than the actual console app i need it to.when i use it on ping commands it comes up in my text box perfectly.when i use it with my console app (which i don't have access to the source for) it outputs nothing until the app closes, sometimes.it depends on the arguments given. i am 100% sure it is the way the app is written but there is nothing i can do about it.so is there any way to get the desired functionality some other way?
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Nov 24, 2010
I am writing a command line application in VB.NET. This application is calling another one, msxsl.exe, to run an XSL transform. I am using the Process class to do this:[code]What I want it to be able to display the output from this process to the console of my application. I have read several posts explaining this method, but it does not seem to work in this case. The output is an empty string.[code]I have verified that if I run the msxsl executable on its own (i.e. running "msxsl.exe base.xml test.xsl -o styled.xml"), it displays output on the command line. What am I doing wrong?I should note that the msxsl process is currently failing due to a malformed XML file. It is displaying this error message:[code]This is exactly the type of thing I want displayed in the console of my application (or, eventually, a log file.)
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Mar 2, 2009
I'm trying a simple example of working with the ServiceController object. I have the code bellow:
[Code]...
The problem is, even thouh with this, the CheckStatus function is supposed to be ran every 100ms (timer driven), the text of the button and the color of the panel does not update. If I close the app and run it again, it will be correct, though.
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Nov 23, 2009
ant to ask you if anyone knows a way to read Dynamic disk status (like rebuilding) true WMI
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Jan 12, 2010
how to proceed. One of our customers is going to be sending me a flat file (ASCII-Text) that I have to break down and scan. Every line ends in a CrLf - So I know I can use StreamReader and ReadLine(). I did get it to work on one of the test files they sent.(A very Short file) However, the file is not delimited at all and every field is padded to the full length they specified. Here's the format of the file:
[Code]....
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Mar 2, 2010
I'm using WinXP Professional and VB 2008 Express Edition. I need to check the LPT1 and LPT3 pins for its status high or low. I am new to VB programming and I need to interface LPT
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Nov 2, 2009
I have a form thats an invoice generator. You type numbers into the text box and it displays totals in the listbox at the bottom. I was trying to make it so that as you typed into the textbox it would update the listbox.
Private Sub txtWBQuantity_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtWBQuantity.KeyPress
'This section makes it so that you can not type a letter into the txtWBQuantity textbox
[Code]....
It works kind of, after I hit the next key it calculates the total of the first number I typed then writes the next number, how can I make it calculate the total after I hit the key?
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May 2, 2008
Alright, let's try this again. I have an mdb file as a database in my program, I need this mdb file to be what my published program reads off of. Is there any way to have Visual Basic (2008 Express) not encode my mdb file to Example.mdb.deploy?
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Apr 26, 2011
i have dis xml....i am getting d output for all d ID's but i want to get d output for a particular ID only....eg ID 1....so cn any 1 tel me d proper syntax for getting a particular ID.
[Code]...
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Nov 2, 2011
I am new to VB and newer to posting in forums. Please excuse my ignorance. I am trying to run "net view" from cmd and have a button text for each computer found. So far my code is:
Private Function nview_run() As Boolean
Dim nview_runProcess As New Process()
Dim nview_runStartInfo As New ProcessStartInfo()
[code]......
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Jul 15, 2010
working with data in VB.NET, and the easiest method seems to be XML, since ini isn't supported. So I tried but couldn't find a way to read XML attributes and then replace/update them if needed. So for example I have this XML File:
<?xml version="1.0" encoding="utf-8"?>
<Entries>
<Entry1 font="Arial.ttf" R="255" G="255" B="255" effect="Stroke"></Entry1>
<Entry2></Entry2> - In the same format
</Entries>
How do I load those as strings, for example I want to write them to a file later, and I use the code:
sw.WriteLine("Font")
But instead I want to load the attribute from Entry1, instead of loading it from pre-defined variables. one more thing I want, when the user clicks a button to update an attribute (Font for example) to the current textbox text.
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Apr 17, 2010
In the code below - when I try to read the contents of the text file that I've created by using the > in the shell command, I only get the first character of the file - not the whole contents!I've put breaks in the code and checked the contents of the file immediately after the shell command and the file is complete. I can't understand how I'm only getting one character of this text file.
Private Sub myButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles myButton.Click
Dim runEXE
Dim path As String = pathTextBox.Text
path = Replace(path,"Program Files", """Program Files""")
[code]....
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May 27, 2009
I usually use standard button and do the settings like causevalidation etc if required.
i decided to use toolstrip and inserted some buttons but end up that it doesn't do the validation for control and also doesn't call leave event of textbox control.
so my question is, anyway to use regular button functionality for toolstripbutton or there is a way to add regular button on toolstrip.
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Sep 23, 2008
I am trying to read from a MySQL DB, and then output to the console like this:
[Code]...
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Apr 15, 2009
I've got an old dynamic link library that I'm using which was created primarily to be used in a console environment. As such it generally indicates what it's doing through Console.Write(). I've recently created a windows form which is using some of the functions from this library. I'd like to be able to grab the console output and place it in a textbox on my windows form so that the user can have some indication of the progress (right now it just says "Working").
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May 25, 2011
I am running some commands on computers and I would like to have them output a seperate text file if the command cannot run.
For Each strUserName As String In strLines
Dim ReplaceCommand As String = sCommand.Replace("*", strUserName).Replace("$$$", saveFileDialog3.FileName & ".txt").Replace("###", exeSearch)
[code]....
Am I on the right track? I am getting an output to a text file but its just one line ans always says PASS.
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Sep 27, 2011
We have the customers credit card number on file which we use simply to identify them when they swipe at our computer. The problem i'm running into is that when they swipe their card in the card reader (Magtek mini usb) it outputs the data as ASCII which looks something like %B followed by the credit card number in whatever textbox i have the program focused on. I'm sure i could just search the textbox for any 16 character number string and assume that is their card number, but i was just curious if there is some best practice to decript the ASCII output from the magnetic card reader.
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Apr 22, 2010
I am a bit of a newbie when it comes to vb.net and databases and I have a small favor to ask anyone I am looking for a very basic example on how to connect, read, update and insert data into remote mysql database. I have successfully connected to my database with the code below,, and for the moment I am just trying to LIST data from it in a listview control,, and then would like to find a way to insert data into it and update data.
Al examples I find on the net are too long and usually have too many unnecessary data around the code I need so I get a bit lost in it.Can anyone point me in the direction of SIMPLE examples that are easy to follow or provide a bit of useful code I could learn form.
[Code]...
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Apr 3, 2011
I have an application that gathers data from a SQL database that is used by a 3rd party helpdesk application.My application is pulling out information of the number of hours worked by each engineer for the current and previous 2 months.Also as part of this process, my application works out the target hours for each of those months.
My application has 3 groupboxes whose label is generated at runtime. My application gives the Groupbox1.text the name of the current month, Groupbox2.text the name of the previous month, and Groupbox3.text the name of the month before that (e.g. Mar, Feb, Jan).
What I am trying to do is have 2 text boxes for each month where I can enter the number of engineer holidays taken and the number of public holidays if any. I want to store these values in an XML file, and I guess they need to be stored to match the Groupbox text (i.e. Mar, Feb, Jan).
When the application starts, I need to parse that XML file and re-populate the text boxes with those number of days - BUT if the month has moved on, so that the Groupboxes are now called Apr, Mar, Feb then I want the Mar and Feb data to be loaded, and I want the XML file to be updated so that Apr is added and Jan is removed from it.I want the XML file to keep the current and previous two months figures only.
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Aug 31, 2011
Using visual studio 2010 on a PC running Windows XP SP3 (32bit) I am trying to read the output from a serial device but only get timed out error?If I open hyper terminal I can see the output, so the hardware and connections are good and the command to send data is working as well?When debugging I have no errors, when the program is run (in debugging mode) I get a timed out error from after the do loop (test=2) All I want to do is have my device output printed to TextBoxLockOut.Text? Note "comstring" grabs my com port the serial device is using - on this computer it is com4, it is a public string
Dim inputline As
String = ""
Dim command As
String = ""
[code]....
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Jun 3, 2010
The following function copies a file from Source & Path to Dest & Path, normally setting file attributes to normal before copying.Yet, a user of my app has reported it to fail when copying readonly files, returning a permissions-related error. The user is however running the code as administrator, and the error happens - quite strangely - on the SetLastWriteTimeUtc line.Although the code reports that the file attributes are set to normal, windows explorer shows that they are set to read only.
[Code]...
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Jan 29, 2009
I'm looking for some help/examples on reading or updating the video capture filter properties in VB.NET. I am working with a USB video device that came on a Panasonic Toughbook. The camera has alot of functions that the user can set when running the software that came with the toughbook (zoom, bightness, contrast, etc)
[Code]...
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Sep 1, 2009
Here is my insert statement:
[Code]...
Now for a succesful insertion i want to notify the user about a successful save operation.....i.e,i want to display a message "Successful Save Operation"to the user. How to do this using the Status Strip?
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