So basically i have the need to only process a command when the text box is populated, if the textbox is not populated i want it to throw a simple msgbox
look at my code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]......
I'm trying to get a combobox to be automatically filled from a text file and have it editable by the user.
So far, when the program is running I can add new items and they appear in the text file and combobox but when I restart the program the combobox list is empty even though the text file has stuff in it.
Dim w As New IO.StreamWriter("z:url.list.txt")
Dim linecounter As Integer
For linecounter = 0 To ComboBox1.Items.Count - 1
[Code].....
I have a form (formA) which contains a tabcontrol with two tab pages. Each tabpage has 6 textboxes and 3 comboboxes. In addition to the tabcontrol there is a separate combobox and textbox. The question I have, is how to best ensure that all these fields are populated with text and or numbers? From this a start button is pressed which generates another form (formB) which requires the fields from (formA). If for instance 1 or more fields is not populated, then generate a message to show the user which 'box' requires data. Only when all fields are populated will this enable the 'start' button.
View 5 RepliesIn my program i have a listbox populated with data from a sequential text file. [code] Mary, Murphy, 16, 893782, Douglas etc.From here the user selects the person they wish to see displayed in the datagrid with all all other relevant details from the text file displaying. Problem is I cannot figure out how to refer to the selected person and then get it displaying on its own in the datagrid. [code]
View 4 RepliesI have a list view populated by a database. The columns for each record are First, Last and EMPID. When I look at the list view on the form at runtime, I can see some/all of the First name and then below that may be part of the Last and some ... periods and no EMPID. When I hover over the record, I can see the EMPID. Is there a way to have all of the information in the record visible in the list view?
View 4 RepliesI am running Visual Basic Express 2008. I realize this forum category is for VB6 or earlier, so please kindly inform me of where to post this if this is incorrect.This is actually the first forum I have joined ever because I can't figure it out on my own and can't find the code off the website. I am almost done, i I have a ComboBox and 4 text boxes. At the bottom it has CLEAR, UNDO CLEAR, COPY ALL TO CLIPBOARD & COPY SOLUTION which does so for the ComboBox and all 4 text boxes. The format like this (CORP is the ComboBox):
CORP - Workstation - Won't power on - HOSTNAME/USERNAME
PROBLEM/REQUEST:
started happening today
[code]....
And then due to the ticket entry system we use, I have a separate COPY SOLUTION button and that works just fine, but that would read as:
Dispatching tech
Now here's where I'm caught up on, I need to take a textbox where I don't use it because I don't have a use for it dependent on the issue of the person I'm working with and it'll look like this:
CORP - Windows - Password Reset - USERNAME
But, this is where I'm getting stuck, it keeps putting stuff like:
CORP - Windows - Password Reset - /USERNAME
or
- Windows - Password Reset - /USERNAME
[code]....
how do i read the first line of text of every text file in a folder and populated in a list box. Also how do I get it to show the file name in a text box when you select an item in the listbox
View 1 RepliesAfter I have retrieved my data from my access database, I would like to insert text into one of the columns in a new row. Is this possible? Here's a snipit of my code I use to retrieve the data from access:
If con.State = ConnectionState.Closed Then con.Open()
sdr = cmd.ExecuteReader()
rtime = Now()
[Code]....
It's the rtotal_time value that I need to insert into a new row, in and cell, the datagrid.
I need to pass command to a console app i start in my program, with some start-up parameter.get the return parameters after the console app has finished,then pass further commands based to the return values from the initial execution
View 9 RepliesI am having a little trouble with my VB.NET program and was wondering if someone could point me in the right direction?I have started a cmd.exe process in my vb.net (2008) program however I would like to execute commands for my process (in the same command prompt window created) on the fly. For example (the commands are irrelevant)... on the click of button 1, I would like to carry out the command "cd C:". Once that has finished I'd like to be able to click button 2 which executes "help". (I do not want the commands to execute when the process starts).[code]
View 14 RepliesI want to launch System Restore through my program. I figured out the destination of this feature in Win7 is: WindowsSystem32control.exe sysdm.cpl @0,4
So I wrote this
Dim p As New System.Diagnostics.Process
Private Sub CreateASystemRestorePointToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[Code]....
Problem is that it will not work if I have anything behind .exe And "sysdm.cpl @0,4" is vital for this to work, otherwise I just launch Control Panel, which is pretty useless for what I want to achieve.
So how do I include commands like those in Visual Basic?
I've created a very basic WF Shell project which runs an EXE (xyz.exe) in the WF Shell project's Resource folder. I can get a command line working from the Shell to open the other EXE (xyz.exe). But, I can't get code to close the Shell project's other EXE (xyz.exe) once it is opened. The xyz.exe windows called by the Shell continues to stay open even if I pass a "close" command line to the Shell.
The following code (which Paul suggested in another posting) will not close the other (xyz.exe) EXE's running process (when called by the Shell). While the Shell seems to be able to return it's called subordinate EXE's (xyz.exe) ID, not sure how to use such an ID to close its process.
Imports System.Diagnostics
Module Module1
Dim resourceFolder As String = Application.StartupPath & "Resources"
[code]....
I'm trying to figure out if there is a way to programmatically determine how a program was exited. For example I'm sure many of you are familiar with the latest malware that detects antiviral software and ends the process and I know we are all familiar with Task Manager's kill process option. The end that I'm seeking is to find out how to utilize WMI, .NET, Win32, or any other Windows feature or programming tool set to determine the source of a process kill command.
Now to be honest I don't want to prevent the kill command from executing, I'm not trying to hinder the user by denying them the ability to end unwanted processes I'm just trying to figure out and document if a users ends a program normally, if TaskMan was used to force kill, or if another program is purposefully interfering.
[Code]....
I have this in a VB.NET console application:
Dim p As ProcessStartInfo
p = New ProcessStartInfo(Environment.CurrentDirectory & "injavac.exe",ClassName & ".java")
Dim ps As Process = Process.Start(p)
This does run the java compiler on the file, but it does so in a new window. I want the output from javac to appear in the same console that is running my application. How can I do this? Perhaps there is another method for running commands in the current console? Or maybe I can supress the second console window from opening and redirect its output to the current console?
I am trying to parse data from netsh dhcp commands from my application which will run from remote client systems running windows xp/7. In order to do this, credentials must be passedSo I can currently get the correct data using the RunAs command. However when trying to do it programatically from vb.net it returns data as tho there were no credentials passed.
p.StartInfo.RedirectStandardOutput = True
p.StartInfo.RedirectStandardInput = True
p.StartInfo.RedirectStandardError = True
[code].....
I want to add a scheduled task like this: Dim myProc As Process myProc = Process.Start("at", "02:00 /every:T,W,Th,F,Sa c:ackup.bat") When I type that command at a command prompt it returns "Added a new job with ID = x". How do I get this ID in my code, as it's needed if I want to delete the scheduled job? I've tried looking at some of the properties of myProc but haven't found the right one yet. Maybe I need to wait until the process has completed? (If so, how will I know?).
View 2 Repliesi wont code in vb.net get Out Side Process Command Line
View 4 RepliesI need to execute commandpromt process async and get the output of the execution. i currently have this code
Public Function ExecuteCommandSync(ByVal command As Object) As String
Dim result As String = Nothing
Try
[Code]....
I have been trying to fix this and make this work for pretty much three days now. I already solved one problem being, I can't use the shell on one HDD and create another file onto a different drive other then the drive that the directory of the application is running in.
EX:
If I run a program that is on the C: drive and using a working directory that is on the C: drive, I can not create a file onto the F: drive.
I got this problem when I was just using Shell(Environ$("Comspec") & " /c then the command")
So I decided to use Process()
Dim p = New Process()
p.StartInfo.FileName = "F:Visual Basic ProjectsCode TestingCode TestinginDebugToolsMediaInfoMediaInfo.exe"
[Code]....
For some reason I can not get the following code to work properly:
[Code]...
I'm using VB.Net to launch multiple command line window (same exe file) through Process.StartInfo. I would like to have those windows running at background without hanging main UI thread that launch them and at the same time able to get the output of those external window to show progress at progress bar.Here is a summary of what I'm trying to achieve but need further advise which way is feasible
- launch multiple exe command through Process.StartInfo
- don't want the external exe to hang my main UI thread
- need to get feedback from external exe to update progress bar which is placed at main UI thread
I am trying to create a program that downloads audio files via FTP, converts the audio to mp2 if necessary and copies them to a certain directory for consumption by our automation system. (I am a radio station engineer.)I am using the open source converter FFMpeg to convert audio files to mp2. This is a command line exectuted program. Here is the command line that I use to execute the external program with the input and output audio files at the root level: cmd.exe /k ""C:New Folderffmpeg.exe" -i "C:Test.mp3" -y "C:Test.mp2"" This command line works correctly whether I am using Shell() or System.Diagnostics.Process (Process) to execute the external program. I am going the Process route so I can know when the conversion has finished.Now, I really don't want to use the root directory for this but when I go below root with this line using Process the external program will not execute:[code]Can anyone tell me why that line will not work with Process though it works as expected with Shell()? I can't figure out how to stop the external program to get some feedback as to what its problem is.
View 7 RepliesI'm running into the following error message when I click the button event: Command text was not set for the command object. [code]
View 1 RepliesIf I comment out MdiUpdate() this run fine. When I run it with MdiUpdate I get the following Error...
da.Fill(ds,
"Mdi") Command text was not set for the command object.
I have also taken the code from the select statement and put it into the other 2 (replace the CliendGroupID = 3) and it works fine
Here is the code:
Public
Class NewFileInput
Dim inc As Integer
[code]....
I'm using Process.Start to start an external command line application and using the StartInfo.Arguments method to send parameters to the application. I imagine I'll need to use a loop... but I can't figure out exactly how yet.I need to send anywhere from 1 - an infinite number of files names to this application. Each file has to be sent one after the other. So once the first one is done, I need to loop back around and past the second one.I can probably use the Directory.GetFiles method to get all of the files, but I don't know how to assign them.
View 7 RepliesHere's what I currently have:
[Code]...
I've commented out various things to limit it to specifically this command (example, I can swap mklink out with notepad and it works fine). The command runs fine from a DOS window, but can't be found when I use it this way. I also tried using the SHELL command just to test and I get the same results. No idea why it can't be found, as like I said it executes from the command prompt just fine.
I have written a windows service that is meant to launch a notepad when a specific action happens. The problem i have is that even though the service launches notepad, the actual notepad it self is NOT visible. I know that it has been launced because i can see the process in the task manager. By the way the process is listed as a SYSTEM process rather than a process under my user name (i believe that is because my process is a "LocalSystem" one).
View 4 RepliesFirst let me say that I am not sure whether or not this should go in this section or the API section, and if it needs to be moved I apologize. My issue is fairly straight forward, but for some reason I cannot get it to work.
I am trying to send a command to a command line and then submit the command. I have been trying without success to get this to work in v2008 Express and v2010 Express, Here is the code I am trying to us:
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String _
[Code].....
I am using Vb 2008 And Access Database. Also i am using Typed DataSet And Data Bound Controls.My Question is How to Retrieve CommandText String written for a Query in Data Source Table Adapters at Run Time.
Also how to Set (Change) the CommandText String for Table Adapters @ Run Time.What i realy want is I am using Data Bound DataGridView Control & i want to allow User to Filter the Rows of Data being displayed at Run Time, for that i want to pass additional WHERE Clause to Query in Table Adapter and Re Call it's Fill Method.
I am trying to get a set of records from the database to show. This page is setup like a search page with two combos for the data, one for a location, and four for different characteristics. Using this data I created a SQL command text that I checked against the database and it works as a script file. I put this in my code with the changes needed for it to run in VB.Net and I am getting an ObjectNull Reference not set to an instance of an object. It is being caught by my try statement so I only have the line number. Here is the code where it is happening.
[Code]...