Getting A "Goto" Command?
Jul 24, 2009There is a "goto" command in batch programming. Is there a goto command in vb programming?
Example:
Dim Variable As Integer
Variable = 1
Select Case Variable
[code]....
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Use The GoTo Statement In .Net?
Feb 19, 2009I have process that needs to create a bunch of records in the database and roll everything back if anything goes wrong. What I want to do is this:
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Creating A Goto Page?
Oct 20, 2009Ive got my pdf file to open but i need to open the document on a specific page. button 4 is an accept button/ user clicks it searches and opens files.
im using VB2008 express my code is:
Dim readfile As String = ("C:Program FilesRimless Data SheetsApplication FilesRimless Data Sheets_1_0_0_4shape file pdfsShapes files")
Private
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Goto A Specific Record On A Form?
May 16, 2011I Have A form With With Data source DS1 Is There A Way To Filter The DS1 To Show A Specific Record Parameter Input Textbox
View 2 RepliesIs Using GoTo<label> ALWAYS Considered Bad Practice
Aug 23, 2011I'm just wondering why using GoTo<label> is so frowned upon?I'm learning VB, and I want to develop good habits as I go. One thing I don't entirely understand, is why everyone avoids GoTo like its the plague (except in error handling...). I feel like GoTo could be useful in some situations.
View 1 RepliesListview Goto When User Types?
Jun 24, 2010Is there a way to make a listview select an item based on what a user types? for example, If i have a listview with a column (last name), and the Listview is in focus, I want the user to be able to start typing and have the row select move to the row that has the letters in that column
View 4 RepliesMethod To Return From A Goto Statement?
Oct 26, 2009I just want to know whether there is any method to return from a goto statement.
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Windows 7 Goto Standby Mode
Jul 7, 2010I need to standby the remote computer(windows 7) in given time.
there are Server and clients... From server machine I need to standby(windows 7) the client system given time.
.net - Replicate Try/catch/finally Using On Error Goto
Jun 14, 2012Suppose in VB.NET you have:
Try
Debug.Print("Trying...")
Catch ex as Exception
throw new Exception("Exception", ex)
Finally
Debug.Print("Finally...")
End Try
How would you write this using the "On Error Goto" construct? (please no questions asking why I would want to do this, just curious if it can be done).
VS 2008 - Goto Specific Part Of Code
Mar 21, 2010I have a for each item in listbox:
try
'code goes here
catch ex as exception
end try
next
now, in my code, i also have if ex = certain error. i'd like it to go back to the top of the try. reason for not letting it do its thing is, i am wanting it to retry it, under the same item. So, is there a way to goto a portion of the code.
VS 2010 : Make Button Open Ie And Goto Url?
May 6, 2011I need my program to open the users default web browser, and go to a specific url. Its actually a menustrip but still.
View 5 RepliesListview String Value Goto Combo Box On Double Click
May 2, 2012i have hard codeded combo like this suppose i select not tolerated by pattient this is listview box and i want "not tolerated by pattient" back to combo box on double click to list view box
View 3 RepliesSkip Empty Database Fields And Goto Next Step
Dec 4, 2009How to tell the program that if the field is empty to skip it and go to the next step. I have tried IsEmpty (but it tells me the variable IsEmpty was not declared), I have tried to use different If statements but in most cases I get the message
"Conversion from type 'DBNull' to type 'String' is not valid."
I tried using an integer variable and setting it to
'Test = CStr(dt.Rows(I)("socSecNumber")).Length'.
It works for the first step (which makes sense b/c socSecNumber is never empty), but when I set the 2nd and 3rd ones
(TestFName = CStr(dt.Rows(I)("firstName")).Length TestLName = CStr(dt.Rows(I)("lastName")).Length If TestFName > 0 And TestLName > 0 Then...)
Then I am back to getting the message
'Conversion from type 'DBNull' to type 'String' is not valid'.
I do not know anything about recordset and when I did try to use it it displayed the message something like 'get and set are no longer allowed'.
The entire function is below:
Private Sub BtnCreateLetter_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnCreateLetter.Click
Dim SSN As String = TxtBxSSN.Text
Dim dt As New DataTable()
[Code] .....
Is it possible to include something in the SELECT from table? Such as:
"SELECT * FROM" & Students & "WHERE" * NOT DBNull
or
I do not know if it is possible to use variables in the SELECT from table code but if it is I thought perhaps could make a variable named FieldContents and pass it to a function that would do something like:
"SELECT * FROM" & Students & "WHERE" * FieldContents LIKE '[A-Z]'
Give A Good Example Of The GOTO Statement In Visual Basic 2008?
Jan 15, 2010I wanted a good example of the GOTO statement, I really want to know how to imply the goto statement in my future projects.
View 7 RepliesOnce The Timer Has Been Stopped And Started, Code Does Not Goto The Elseif Part (i.e. I=5)?
Jul 19, 2010i was trying to make a free microsoft word plugin in vb.net. It automatically fills a web form. The main problem with the plugin is that it uses web browser control and once it has filled a form it will need to navigate another form. The form can only be filled once it has completely been loaded.so my approach is
1. navigate to first site when form loads
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
WebBrowser1.Navigate("http://google.com")
End Sub
2. use an integer i and use if statements to check which form to fill :
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEv entArgs) Handles WebBrowser1.DocumentCompleted
If (i = 1) Then[code].....
3. this is the main step. you see when main form loads, i=1 so browser goes to google.com (first form), when form is completely loaded, itchecks for value of i. Since i=1, it fills google. After filling and continuing i=2 and browser goes to my personal account page. This means browser again loads the document. Now i=2, so it fills my personal detalis. Now the timer starts. Since i=3, browser navigates to second site and fills the details.
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If (i = 3) Then
WebBrowser1.Navigate("http://blogger.com")[code]...
now the problem arises. The browser does not go to the third site. Once the timer has been stopped and started, the following code does not goto the elseif part (i.e. i=5) why is that so?
VS 2008 - Use GoTo - Microsoft Seem To Use It A Fair Bit In The Internal .NET Framework Code
Sep 28, 2009I've seen a few people on here saying that you shouldnt use GoTo in VB.NET and to be honest I've tended to agree as I have never needed to use it and there is always another way of doing something without using it. However, I'm just wondering what is so bad about it? I actually noticed that Microsoft seem to use it a fair bit in the internal .NET framework code, which is what makes me wonder why people are so against it.
View 26 RepliesVS 2008 Listing - Make A Textbox Goto The Next Line Evrytime
Feb 5, 2010i have a problem with trying to make a textbox goto the next line evrytime i add something. ive been trying for a while, and came up with the script
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Send A Command To A Command Line And Then Submit The Command?
Apr 30, 2010First 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 _
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VS 2008 Goto Debug Program Get Error 'Conversion From String' To Type 'Boolean' Is Not Valid
Jan 27, 2010i have a problem with my code: [code] At the bold part, when i goto debug my program i get the error "Conversion from string "TrueFalse" to type 'Boolean' is not valid."
View 3 RepliesVB 2008 Express Edition - "On Error GoTo Line"?
Feb 14, 2008i'm trying to make a program in Visual Basic 2008 Express Edition that Opens and closes a process/application with an Error Handler.
View 4 RepliesMaking A Code That Will Login To A Cisco Router - "if Wait Fails Goto"
Mar 3, 2011I'm currently making a code that will login to a cisco router, and show the version, then return the version to me. The connection to the cisco router is using telnet, and I'm using Dimac's w3Sockets code to Connect, login, and return data. Reference
But currently I'm having some problems, since the router sometimes need the login typed 2 times, or having a key pressed to update the terminal(telnet),meaning i have to check if it gets logged in or not. But the problem is that using dimac code, i can only wait() and waitFor(), and if it none data comes whilst waiting, it keeps on waiting. Is there away to do like: "if wait fails goto"
I've tryed "on error goto", but since its not a error, but just keeps waiting, that dont work. Also, To locate where it gets stuck I have it write to my textbox everytime it takes a step in the code, but its like the dimac code overtakes vb.net. ex: If i send some text to a textbox in the same sub as the connect code is, and it gets stuck at a wait, it dont even write to the textbox, eventhough the textbox.text command was suppose to execute before the wait().
Code:
Private Sub telnet(ByVal port)
TextBox3.Text = TextBox3.Text & Environment.NewLine & "Telnet func Called" 'Cant execute this if it gets stuck at login below. ??
Try
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Create The Same Code Without A Dreaded "goTo" Statement?
Jun 4, 2009I would like to get some input as to how I would create the same code without a dreaded "goTo" statement. This is something i've wanted to get an answer to for a while and just thought about it again.
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Using Psexec.exe From PsTools To Send A Command To A Remote System To Fire A Command
Mar 17, 2010I am currently using psexec.exe from PsTools to send a command to a remote system to fire a command through a command prompt however I am finding that the shell I am doing does not seem to like the spaces in the path.
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ExecuteReader Requires Command To Have Transaction When Connection Assigned To Command Is In Pending Local Trans?
Nov 8, 2007Any ideas on how I handle the following error thrown in the SqlDataAdapter.Fill as a result of the BeginTrans in the callee?
System.InvalidOperationException = {"ExecuteReader requires the command to have a transaction when the connection assigned to the command is in a pending local transaction.The Transaction property of the command has not been initialized."}
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IDE :: ExecuteReader Requires Command To Have Transaction When Connection Assigned To Command Is In Pending Local Trans?
Jun 30, 2010Public Sub ExecuteTransaction(ByVal connectionString As String) Using connection As New OleDbConnection(connectionString)
Dim command
As New OleDbCommand()
Dim transaction
As OleDbTransaction
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Command Line Switches - Keeping Command Window Open?
Feb 24, 2010I am using the following code to run defrag and to analyze if the C: drive requires defragmentation:
Dim analyze As Process = System.Diagnostics.Process.Start("C:WindowsSystem32defrag.exe", "C: /a /h /u /v")
This process runs through analyzing, runs it in normal mode & prints the progress to the command window.
My problem is that as soon as the process is complete the command window closes. I need it to stay open so that I can read the results.
Send Command To Command Line From Windows Form Application?
Mar 11, 2010I am trying to send a command to the external command line (cmd.exe) from the Windows form application that I'm writing in VB.NET (using VS2008).
I can only access the external program thru the command line (its not my program) and I must do so from a form app.
I am trying to use the following code. I am able to call a cmd.exe window, but I can't pass the command line my command.
Using mp As New Process
With mp.StartInfo
.FileName = "cmd.exe"
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Add New Sql Command To DataSet's Command Collection And Fill DataTable?
Jan 16, 2010I want to add a new select command to my dataset. To do that, I have added a new partial class to my project. Because we have to use partial class if we want to extend generated dataset codes. [code]...
View 3 RepliesCommand Line Program To End Before Moving Onto The Next Command In Loop?
Feb 4, 2011I am using a CheckedListBox that is populated with Filenames (full path, i.e. C:TestTest.jpg)When I have the files that I want in the CheckedListBox I wish to click a Start Button which will process the list one at a time using an exe program that runs on the Command Line. There are arguments that need to pass to the command line as well as the file location in order for the program to process.I currently have it working but the issue is the loop finishes quickly and it is left up to the CMD.exe to finish the process. What I would like is for the LOOP to wait until each file completes processing before passing the command for the next file in the CheckedListBox.There some reasons I wish for it to work this way.
1) I would like to have a button that can Pause/Restart the Loop.
2) I would like to have a button that can Stop the Loop so the whole process can end.
3) I would like to have the Loop remove each file one by one from the CheckedListBox after it has been processed.
4) I would like to display a Message once all the files have been processed.
5) And if it were possible I would like to report the status either by text or a progress bar showing where it is at in the process.
6) And the ability to add some error handling if possible.
Since the Loop finishes so quickly as it just passes the command to the command line using the & as a seperator it is the command line that is handling the rest of the process. Because of this there is not control over it in the GUI.The code I am using allows the Command Line text to display in the Form so it won't open up a seperate window to run CMD.exe. This is the desired affect as I would like everything to appear to run from within the Form itself.
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Insert Command Not Functional After Clear Command In Vb Report
Aug 21, 2011User need to select their prefferable data to show in report. What i did is i have a clear command first to delete the temporary table. The temporary table is basically a table to stored user selection parameter data. After the clear command, i have
a insert command to insert user selection data into the temporary table. What happened now is when i run the program exe, first run of the report is work fined, but not the second and the following times of execution. It will return null or blank report. The weird thing is when i execute it from development environment, it seem like the report is able to pick up user selection parameter and run the report for the first times and the subsequent execution.