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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Method 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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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 RepliesCreate 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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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 RepliesWindows 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()
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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]'
Once 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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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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SQL Statement Doesn't Work - INSERT Statement Works Fine In The Form Load But Not In The Button Click Event?
Oct 14, 2009See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
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The problem, The INSERT statement works fine in the form load but not in the button click event?
If <expression> Then <statement [:statement]> Else [statements] In Concrete Form?
Jan 1, 2010I was convinced that If <expression> Then <statement [:statement]> Else [statements] in concrete form of If a = b Then SayHello() Else SayBye() End has sense. I read article on msdn on If-then-else, but I forgot why I was reading, so I concluded, that snippet above means this
If a = b Then HelloIsSaid : IsNotEnded Else ByeIsSaid : IsEnded But I have tested it now, and I see, that Else without statement is nothing more than decoration. It would be pretty good if it had function I described. Do you think its good request? Or do you know any circumstance where this Else has some function?
Making A Next Statement Into A Loop Statement In Visual Basic?
Jun 8, 2009y friend and I are re-learning Visual Basic, and we are stumped on this bit of code.
For intAsterisks As Integer = 0 To intLine - 1
lblAsterisks.Text = lblAsterisks.Text + "*"
Next
Sql - Perform An Inline Select Statement In A LINQ Statement?
Jun 24, 2011I have the following SQL:
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I want to put it (the select count statement) in this LINQ statement so I can get the sales count in my linq statement: Dim TheLeads = (From L In DB.Leads Where L.IsDeleted = False Select L).ToList() Is this possible to do in LINQ?
Gridview Cell - Goto To Cell Which Row = 3 And Column Is 4?
Oct 17, 2011using code, how can i goto to cell which row = 3 and column is 4?
View 7 RepliesChange The Exit Statement To A Continue Statement?
Feb 23, 2009add an if statement and an exit statement to my do loop that exits when my future value (FV) is greater than 1000, then to change the exit statement to a continue statement so my loop will continue even though my fv is greater then 1000, point is to get this to run even though my if statement doesnt do anything. problem something wrong in my code and an exception error (xception of type 'System.OverflowException' occurred in mscorlib.dll)
so can someone show me where or why I have an error is, what am I overthinking now! I could use a hint, OMG i could use a tutor for that matter
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ElseIf Statement Into A Select Case Statement?
Jun 23, 2010A co-worker wants to convert the following IfThenElseIf statement into a Select Case statement.
Explain why this is not possible.
If temperature = 100 Then
X = 0
ElseIf population > 1000 Then
X = 1
ElseIf rate < .1 Then
X = -1
End If
SQL Statement :: Nearly Working Just Cant Get Form Values In Statement?
Aug 4, 2010I cant get this SQL statement to insert any of the values in the form to add to the database
sql
sql = "INSERT INTO prevresults (ExamDate, ExamTime, CorrectAnswers, PassPercentage) VALUES (date.now, time.now, rightanswers, percentage.text)"
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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
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Return Statement Which Is True In An If Statement?
May 24, 2012Return statement which is true in an if statement
View 3 Replies