I found a piece of code that I am trying to get to work because it could potentially solve an issue I am having. Here is the link to the site[url]...
the code can be downloaded here[url]...
I am using VB.net 2010 suite but I am getting a error that says "May return null value" I have been unsuccessful in debugging it.
previously i have a program that requires me to convert C code to Vb.however, after converting, there are some errors that stunned me.
Imports System.IO
Imports System.Management
Imports System.DirectoryServices
[code].....
I'm suppose to do an application as follows..I should dial a modem with Phone number using Gsm Modem. i Searched a lot in Google for some source/idea's in vb.net but i dint get .I have code in vb6.0 so I converted that in to vb.net. In that i'm getting errors correct my code.Here is my code.I'm fresher as well new to VB.net programming.Because of stress for urgent completion of work,not able to spend much time.
[Code]...
I'm new to visual basic 2008 and have worked on this question for quite a bit before deciding to come to this website and asking for someone to walk me through it."Write a program that requests an amount of money as input and displays the names of all liquids for which a gallon could be purchased with that amount of money. The information in the (table 6.2) should be read from a file. As an example if the user has $2.35, then the following should be displayed in the list box: "You can purchase one gallon of any of the following liquids:Bleach Milk".[code]
View 1 RepliesI'm converting some C# code to VB.Net, as it's a language I know better, I've got some code that I can't figure out...
Dim mybtn As New ImageButton()
mybtn.ImageUrl = _imgUrl
Select Case _buttonType
Case ButtonType.Backpage
[CODE]...........
This is giving 2 errors:
Me.btnBackpage_Click = Delegate 'System.Web.UI.WebControls.CommandEventHandler' requires an 'AddressOf' expression or lambda expression as the only argument to its constructor.
And
mybtn.Command = 'Public Event Command(sender As Object, e As System.Web.UI.WebControls.CommandEventArgs)' is an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event.
I am working on a project for school and I am encountering several errors in my code relating to the numeric up down boxes I have in the application. I have inserted my code and the error list below. I'm sure that it is probably something really simply but I am learning the language on my own and I am a little stumped here.
View 18 RepliesI just started to build a website using visual web developer 2010 express.I am getting a syntax error when trying to program a submit button...this is the code i have in my Sub menu for the submit button.
Protected Sub Button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click
Switch(RadioButtonList1.SelectedValue)
{
[code].....
Open "c:Batch1Test.txt" For Output As #3 is used in VB6, will not work in vs2010. How can i get this re-coded to open a datafile on harddrive, then input the records 1 at a rtime (sequentially).
something about namespace.visualbasic, which i am not familiar with.
I am a VB programmer. Recently I noticed that my visual studio is not breaking or alerting me on runtime errors such as "file not found", "division by zero", "database connection error" etc. I want the error display and breaking on..
View 3 Repliesis it possible to add some VB.net code to handle all the errors in my application. (and not to go in each sub and add the on error intruction) I want to handle every error.
View 6 RepliesI have a VB.net Solution in VS 2008 with 2 projects in it (The machine is running Windows XP Professional). I can build the one project fine. The other one the build keeps failing. Their are no errors in the code. I don't get any message when the build fail except, VS ask me if i want to run the last successful build. I have tryed cleaning the solution and then building and rebuilding it.
View 1 Repliesjust want to ask what would be the possible code if there are no records in database.. example when you click search.. then there! well.. here is my code
[code...]
I am using the given code to copy my database files...it works like a charm in debug mode but as soon as I create a setup, it stops working. The error is
"Database Detach Failed"
I tried checking the code line by line and found that the code does not enter the IF block.I have no idea why.
Public Sub bk()
Try
Dim strDatabasePath As String = My.Computer.FileSystem.CombinePath(My.Application.Info.DirectoryPath, "LIC.mdf")[code].....
I have this code:
Public Class Transform
Dim inputFile As IO.StringReader ' Object variable
Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles ofdOpenFile.FileOk
[code]....
And I am getting these errors:
'Private Sub Transform_Load(sender As Object, e As System.EventArgs)' has multiple definitions with identical signatures. Line 15
'strOutputPath' is not declared. It may be inaccessible due to its protection level. Line 51
Type 'XslCompiledTransform' is not defined. Line 83
I've deleted the original code, but to be specific, when I developed a form using Buttons and Textboxes I didn't place them in any specific order. The result was that as the user clicks the cursor, it would bounce around the page in what would appear to be a random sequence, but in fact was going to the next button/box in order of how it appeared in the code section of the form. Naturally, my first inclination was ..... OK, that's how it's going to be, I'll just cut and paste the code in the order of how I want the cursor to move. What happened was I generated several errors and the file would not compile. I can find no information on how to properly cut/paste code sections without generating these types of errors. BTW, I did try the focus() function and it did direct the cursor to the appropriate box, but it also only allowed 1 character to be entered in the textbox and summarily directed the cursor to the next box.
View 2 RepliesI am not exactly sure what I am doing wrong. I need to convert Me.xCommissionLabel.Text = Format(Me.xCommissionLabel.Text, "currency") to a toString, so it displays a dollar sign, 2 decimal places. so I did this. Me.xCommissionLabel.Text = commissionLabel.ToString(CType("C", IFormatProvider))When I run the program and input the data I get: A first chance exception of type 'System.InvalidCastException' occurred in Commission Project.exe. [code]
View 7 RepliesI have almost completed a translation from C# to VB.NET, however, I run into some small errors[code]...
View 1 RepliesIs it possible to check the code and find all places where conversion errors might happen.for Ex: Wherever = operator is used , i have to check the type of the LHS and RHS variable.
Is it possible with following softwares?
So I've created a very simple UserControl that is pretty much just a combo box that has US States in it and a couple properties to return the selected value as an enumeration or a string, etc.The enumeration and string values I'm using are being referenced from an external library which is working. However, when I add my user control to another project the designer-generated code has errors in it. [code] I would assume that this probably has something to do with project settings or something similar for the user control. The control itself is in a separate project and compiled as a .dll which has been added to my main project's toolbox and subsequently added to my form. [code]
View 11 RepliesI am working with VB Express 2008 and i am having a lot of errors appear when using code from other VB Versions. Is their a computability problem
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)Handles Button2.Click
'CLICK TO OPEN DVD ROM DRAW Declare mciSendStringA Lib "winmm.dll" (ByVal lpstrCommand As String, _
[CODE]...
Use code tags when posting your code. Code tags are used like so =>
i googled many and many keywords and sentences but , i cant found a code that opens the default web browser and gets it a address ( address is : text1.text )
View 3 RepliesIs there a way to code in BASIC a speedhack like that found in Cheat Engine? It changes the speed of a certain process or window. Functions like timeGetTime, queryPerformanceCounter..
View 6 Repliesi need help in write code for arrows up down left right like that found in keyboard by VB.net
View 1 RepliesThis is my
If CheckedListBox1.SelectedItem IsNot Nothing Then
MsgBox("Your favourites have been saved")
ListBox7.Items.AddRange(CheckedListBox1.CheckedItems)
End If
End Sub
What i want it to do is to add the selected items from checkedlistbox1 to listbox7 (but not remove them all together)
This is my error: Overload resolution failed because no accessible 'AddRange' can be called with these arguments:
'Public Sub AddRange(items() As Object)': Value of type 'System.Windows.Forms.CheckedListBox.CheckedItemCollection' cannot be converted to '1-dimensional array of Object'.
[CODE]...
I am working with Visual Studio Pro 2008, and trying to build a Visual Basic project for my College Course. The coursework is not my question, it's not difficult just time consuming. My problem appears to be much deeper, and is certainly causing me to take way more time than I should need to debug and completely random occurence. I don't mind posting the source code but it is rather vast, made up of 23 objects, each ranging from 200-700 lines. I am running Windows 7 Pro x64, and since I need Jet4.0 DB Engine or some such I had to set the compiler to target x86 CPUs. I have my suspicions, and as queried in my topic, I was wondering if VB Designer code can become corrupt or cause funky errors?
The layout I have is something like this:
frmMain
-frmCustomer
--frmAddCustomer
--frmUpdateCustomer
-frmContract
--frmAddContract
--frmUpdateContract
Each steps forward using the ShowDialog method. Initially I thought it was a fluke, but I had frmAddCustomer open and when I closed it (the code simply does me.close, nothing fancy), it jumped all the way back to frmMain, skipping frmCustomer. At first I was baffled, I spent some 45 minutes trying to figure out why. No errors or exceptions, so it didn't seem to be anything wrong really. Since I was building this project in stages I loaded the same form from a previous stage and copied/pasted the new code in. This seemed to fix it, but it happened again after coding for another 30 minutes to an hour. It also isn't limited to that form, I have now experienced the same issue with frmAddContract & frmUpdateContract.
After upgrading to .net 4, my project is throwing errors everywhere I try and change the Foreground Color in code. It works fine in .net 2, 3 and 3.5
View 18 Repliesi'm a freshman and was handed this assignment a short while ago and i'm having extreme difficulty figuring out why i keep getting the following error message whenever i click btnGenerate.Click on the form:Error1: Unable to apply this change while debugging. 'Private Sub GroupBox1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GroupBox1.Enter' was deleted that modifies 'Public Class Form1'. You must revert the change or stop the debugging sessionBasically the assignment is requesting that we build a 'Call Cost Calculator' and since im relatively new to this i've never worked with strings before and also get the follow errors:Warning2Variable 'sCountryBeingPhoned' is used before it has been assigned a value. A null reference exception could result at runtime.Warning3Variable 'sPhonePlan' is used before it has been assigned a value. A null reference exception could result at runtime.
My form codes:
vb
Public Class Form1 'heading Const sFormHeading As String = "Call Cost
[code]....
I reals because it's driving me mad and i'm honestly quite literally stuck and can't move on until i get this sorted.
I recently upgraded my system to Windows 7 64bit and ever since then I have had nothing but issues with my code attempting to access an Oracle database. I was using msdaora for my connection string however that does not work in 64bit. I changed over to OraOLEDB.Oracle which everything I can find on Google says to use however it fails every time. I have installed Oracle 11g 2 times now and even tried reinstalling VB.net 2010 and still no luck.
Here is my connection string....
Code:
MyConn.ConnectionString = "Provider=OraOLEDB.Oracle;Server=emsp.grhq.XXXX.com;Data Source=emsp;User Id=XXXX;password=XXXX"
And I am inporting....
Code:
Imports System.Data.OracleClient
Yet when I try it says...
Quote:
Provider cannot be found. It may not be properly installed.
I have a delete button in a datagridview. The button works fine however when there is nothing to delete it throws an index out of range exception. Now I know for a fact people are going to click that button even though there is nothing the I am presuming the best course of action is going to be a try/catch but I am not sure how to do it. My code is as follows,
Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
If e.ColumnIndex <> 7 Then
[code].....
We have an VB.net application that is being moved from one box to another. It runs great on the old box. The new box is configured the same as the old one but is on newer hardware. When I run the application on the new server it complains that the adobe toolkit that we use can not be found.
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