Running A .bat Called From Code?
Oct 14, 2009
I have an application that checks the available disk space on the host machine and, if the free space is less than some constant, calls a batch which e-mails people who should be notified about such things using sendemail.exe.The VB code works properly, calling the .bat exactly as it's supposed to, and the .bat (when run independantly) works properly, sending of a lovely e-mail.But, when I put them together, the batch file reports that "'sendemail' is not recognized as an internal or external command, operable program or batch file.".I'm well aware of how the PATH variable works and have been sure that the path to the .bat is within PATH (hence why it works when I just run it from the command prompt). I can only assume that, somehow, PATH does not apply to processes run from VB.NET for some reason.
VB.NET segment:
If FREESPACE > GetFreeSpace(DRIVE) Then
'Not enough free space
[code]......
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Feb 16, 2012
I'm writing a program and have run into a bit of a snag. I have the code perform a button click on certain buttons, the reason for this is I have a bunch of buttons that each do something and one that does everything automatically. I suppose I could rewrite everything under that one button but that would essentially double the size of my program, I could use an if statement to catch the fact that the program is in automatic mode but that would be about 15 conditions (not looking forward to writing that statement ;p)
Clicking the buttons is a nice simple, clean solution. The exception being the program performs the click then continues on executing the rest of the code in the actually clicked button while at the same time executing the code called by the code click. Main problem with this is the data that needs to be populated by the code click isn't being populated fast enough for the code in the main button so then there is errors, blank data, program doing nothing. A simple sw timer to delay could work (I know how to make one of those) but the problem with that is the program is executing against a webpage and if the webpage takes a few seconds longer to load then anticipated everything is out of wack again. I'm looking for a simplish way to cause the program to wait for ALL code called by any raised event to finish before proceeding.
i.e. Call Button.clickEvent > Wait for code and subroutines executed by Button.clickEvent to finish > continue with rest of code in button.
Below is the code I'm using so far for the user clicked button.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Button4.PerformClick()
'Need to wait for all code executed by Button4 and anything it calls to finish
x = 0
[CODE]..........................
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Oct 20, 2011
When an UpdatePanel Calls a method in server and for example this method change textBox1.Text = "12312"
and this textBox1 was out of updatePanle scope it dosn't change it text till a postback happend to the page
so I need after that calculation and chaging the Textbox's text in the server, I need to forcepage to do postback
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Feb 15, 2009
I have a program that runs some code when i click a button on a form when done running the application ends. I want to automaticaly run the code when the users clicks on the exe. I have put the code that i want to run in the startup forms load event but that doesn't start
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Feb 9, 2011
i was wondering if it possible to have a condition where lets say you have a column in the datatable called amount and a textbox acting as the filter called say maxamount to set it so the rowfilter when filtering the table will sum the number in the amount column until the number in maxamount is met, then stop and only return the rows where the total sum of the amount column is equal or less than the maxamount value, so i guess if the next row takes us over the maxamount it discards this row and returns the rows previous to it. is this possible using datagridview rowfilter or should i be loooking elsewhere to achieve this?
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Jan 11, 2011
I've been having trouble converting the following fairly straight forward c# code into vb.net 4.0, which I understand has anonymous delegates. I just havn't been able to figure it out yet.
_combo.DataBound += (sender, args) =>
{
var item = _combo.FindItemByValue(values[0].ToString());
if (item != null)
[code]...
I have tried the following
_combo.DataBound += Function(sender, args)
Dim item = _combo.FindItemByValue(values(0).ToString())
If item IsNot Nothing Then
[code]...
But the compiler complains that DataBound can not be called directly, but has to be called with RaiseEvents
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Jun 5, 2011
I have an sql table called Stock with two fields called StockID and StockCode. I want the user to select the stockcode from a combo which in turn populates the stockid for that item into a lable on my form. I have already populated the stockcode into the combo but dont know how to compelte the rest.
Imports System.Data.SqlClient
Public Class cbo2
Private Sub cbo2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[CODE]...
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Aug 11, 2009
I have a form called FrmPracDetails which is built up with a List view called LvwColProc. Therefore when you click a field on the LvwColProc it takes you to another form called FrmColProcessing, here you can make changes to certain fields which are also present on FrmPracDetails. What I want to do is when you make changes on FrmColProcesing and Click the Save Button (which calls the Save function)the changes appear instantly on FrmPracDetails. Please note, FrmColProcessing will always be open next to FrmPracDetails. I have tried to put this code in the Save function present in FrmCol Processing as shown below, but it doesnt Refresh FrmPracDetails form. [code]
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Jul 18, 2009
I have been developing a calculator for complex math. (Much more complicated than +,-,/,*, and above your usual scientific calculator)Its works quite well .In past programs I have used "private functions". I know that you give them a value and it returns on back. But what if you dont want to recive or send value? My example for this is a function I am attempting to make called "Autopi".The idea of Autopi is that whenever a mathimatical operation is about to be performed textbox(s) are cheked to see if they contain pi. (3.14 or 3.141) If they test positive Autopi will continue pi to however many places have been specifyed in the program. (Currently 300 places just beacuse i can :) Before the Autopi function does this it chekes to see if variable "pi" = 1. If it does it proceeds if it doesent its job is done
How would I create a code that can be called apon to activate but not recive or send any information through the program.And just to clarify what I mean by that is it will read information out of a textbox and write into it. But it wont actualy recive anything or send anything back from where it was called apon.
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Jan 7, 2010
In a ASP.NET app from a procedure IN a VB code file a dynamic control is called. The first problem may solve the second. In the following line of code I am getting an "end of statement expected" error at the following line.
[Code]....
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Apr 2, 2012
I have the following line of code in my program:
JCL_History.Enqueue(JCL_History(I))
This JCL_History object is basically a Generic.List encapsulated in a wrapper and has the following method:
Public Sub Enqueue(ByRef value As String)
If Members.Contains(value) Then
Me.RemoveAt(Members.IndexOf(value))
[Code].....
In my testing I have 2 items in this JCL_History list. When I call that first line of code I posted (the one that invokes Enqueue) with I = 1 I expect the first item to be shuffled to the bottom and the second item to be shuffled to the top.
After the thread returns from Enqueue I notice that this is exactly what happens to my list, HOWEVER if I hit the "step_in" button after the execution of Enqueue I go into the Default Property's set method where Index = 1 and value = and it screws everything up, because the item that got shuffled to the end (index 1) gets overwritten by the item value shuffled to the top.
So basically the set method on the default property is getting called at what I think to be a completely ridiculous time. What gives? By the way I'm running VS2005 on XP.
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Apr 11, 2012
Can you look at my coding and let me know what I'm missing or doing wrong?I have a SSRS report that is called from a ReportViewer control and the ProcessingMode for this control is Remote. The report also has 1 parameter in it's DataSet.In the code I placed a MsgBox to make sure the code is finding the parameter and returning the parameter name. I am trying to stick the value of 10 into the parameter for playerID 10. Data for this player does exist.
I believe I need to add some more code to make this work but I'm not sure what else to add.
When the code executes the report is displayed but no data is shown in the report.
[Code]...
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May 13, 2010
I recently found an awesome tool called "Freemind" that is called a 'mind mapping' program. It's similar to MS Visio but way cooler and more automated.I reeeallly would like to integrate this into a VB.net Form, but how?
Has anyone seen or heard of mind mapping inside VB.net before? Are there programs out there already that work with VB.net or anyone have an example they have seen / built that works?
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Apr 24, 2012
I have already got the start date to verify if after end date and display message, but when i put the following code .focus it seems to run the code twice[code]...
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Apr 24, 2010
Is it possible to have code running in the background and still be able to use other parts of the program (i.e. firing other events).For example I have a instant messaging chat in my program and when the user has a new message then the display flashes from green to red as seen below
[code]...
But I still want to be able to continue using the other functions in my program despite having this code running in the background (which highlights to the user that he has a new instant message by changing the display background colour)How can I overcome this?
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Aug 23, 2011
I have been working on them and adding to them for several months. Out of nowhere, one of the subs in my project is not recognizing updated code. I had a for loop in there that was acting funny so I changed something and noticed no difference. I messed with it for a while and decided to just replace everything in that sub with a simple msgbox and it still tries to run the code that was previously there. I have built the solution, rebuilt it, cleaned it, closed and reopened it, removed the bin and obj folders and restarted my computer several times. This is not a server program or anything dealing with IIS or anything like that.
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May 30, 2012
Project running old code instead of new
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Jul 26, 2011
I was wondering if its possible to have a txt file in your resource's on your program that contains a class..[code]Can i somehow call and run this class from my main form? But it would still just be in a text file in my.resources.I was thinking maybe i would have to have it read the file then use CodeDOM and run that..
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Oct 27, 2010
I am trying to fire off an FTP of files. I have broken down the code to the barest minimum. I have used the Shell Command with success before but the solution is now evading me.
Sub Main()
Dim strGetFileCommand As String
strGetFileCommand = ("c:\Windows\System32\FTP.exe -i -n -s:getcash.scr 10.113.1.7>113Log.txt")
Shell ("cmd /c" & strGetFileCommand)
End Sub
I can run the command from the c:> prompt at the command line so I know that it is correctly formed.
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Apr 15, 2012
is there any way to run the WPF storyboard using code in VB.NET? If yes how can we do it? And if i am not gonna get answer to this question too then let me know.
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Mar 15, 2011
I am an end user of a VB based program and our windows 95 based machines are dying of old age. Before getting my boss to agree to my trying out a newer machine I would like to know if there is any chance of getting this program to run.
I know that I need to be able to drive 3 serial (485 / 422/ 232) ports one of which is on an ISA bus and the other 2 are located internally on the motherboard. Another factor in trying to do this is the drivers are missing for the 485 card and I hoped
to be able to locate newer drivers easier.I think the VB code was created under VB3, but we do not have the expertise / tools to be able to disassemble the .exe file.
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Sep 25, 2011
I have a link that looks like a button from this html <p class="link-styleContact"><a href="#"><span>Email Contact Form</span></a></p> can I run a code behind file when this is clicked on by adding the routine name to the href? like below
<p class="link-styleContact"><a href="ContactFormClicked" runat="server"><span>Email Contact Form</span></a></p>
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Sep 25, 2009
I have a Window Forms application (using clickonce installation, running on a terminal server) that occasionaly ends up with a thread that appears to be running in a tight loop. The user doesn't know this happens as the app continues to run as expected. Also I have determined that I can kill the problem thread without any apparent affect on the app.
I can use Process Explorer to find the instance of an app with the problem and can isolate the thread with the problem but haven't found any way to look into the thread to find anything that would help me determine what is causing the problem. Does anyone know of a way to some additional information about a thread, like maybe strings, that would help me zero in on the issue?
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Nov 17, 2009
I have a number of msgbox's I only want to be displayed if I'm debugging (running inside the IDE)
Is it possible to raise a flag as such:
If RunningInsideIDE=True then
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Aug 8, 2011
I have a self made program (visual Studio 2010 VB) that is running OK but.when i write data to a listbox the output in the listbox appears after the code is finischeded running.
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Jul 15, 2010
We have a purchased application written in Visual Studio 2005 that uses tab controls for displaying information. One of the tabs is for reporting and I am trying to run some code to enable and disable a Validate button. It has a proprietary report component (LxReportView1) that is initially disabled. As user enters information, the Validate button is used to check for required fields. After data entry entries have been validated, user click Validate one last time and record gets flagged as validated and report component (LxReportView1) gets enabled for use. Ideally, whenever this Report tab is clicked, it will run my code EACH TIME.[code]Works fine when user's first action is to bring up a record that has already been validated. So when user clicks on Report tab, report component LxReportView1 has been enabled for use and the Validate button has been disable just as designed. Problem is that given a list of records, if user selects a record that has NOT been validated yet and then later on brings up another record that has been validated, code does not run. How can I get this code to run EACH and EVERY TIME the form loads.
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Sep 10, 2008
I recently just started working somewhere which will involve me coding VB in MS Visual Studio .NET 2003. I've been trying to refresh myself in VB by reading things online, but I just discovered an error while trying to run some practice programs (attached as error.png). Basically it says that I need administrator access.I'm waiting on an IT guy to grant it to me, but in the meantime I'm trying to figure out if there's a way that I can test my code without being an administrator.
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May 20, 2010
I have a combo box I am filling on form load.I am using "SelectedindexChanged" to detect changes in the index to run the code when the combobox is used.Unfortunately, it runs the code on start up as well.
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Sep 16, 2008
I have notice that when a module is running the screen does not update properly.For example if I change a label to read "Please Wait..." The second half of the label does not display until the program is idle.Can I get the screen to update while its running.
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Jun 6, 2009
the user of my application is able to run a diagnostic tool which is part of my application. This diagnostic tool searches every file on the computer, logs the names, and if the my program is able to then the file will be read.
My program has other uses as well. If the user wants to do something else in my program then i want the diagnostic code to run in the background. I don't want this code to prevent users from using other features of my application since the diagnostic search does take time.
How do i do this? Threading? A background worker? If the anwser is Threading which i am pretty sure it is, how do i set up a thread? My computer has 4 GB of RAM - 2GB & 2GB so i know i am able to do this smoothly.
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