Windows System Variables In Strings
Jun 6, 2009How would I use a system variable such as %userprofile% in a string in VB.net? I have this in my program, but calling the system variable directly isn't working
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Cannot Import System.Windows.Media.Imaging And System.Windows.Forms Or System.Reflect?
Mar 16, 2009With the following imported namespaces in my project :
Imports System.Windows.Forms
Imports System.Reflection
.. I cannot add..
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Add 2 Strings Variables
Jul 14, 2011I used to add 2 strings variables and it works but when I tried using VB2008 it didn't work. [code]
View 9 RepliesError Operator "&" Is Not Defined For Types "Strings" And System.windows.forms.datagridviewcell
Aug 12, 2009I wrote the following code in vb.net:-
cmdOnClick.CommandText = "SELECT * FROM patients where ID=" & grdPatients.Item(grdPatients.CurrentCell.ColumnIndex, grdPatients.CurrentCell.RowIndex)
it shows the error operator "&" is not defined for types "Strings" and system.windows.forms.datagridviewcell
Give Different Variables In Strings?
Mar 9, 2011I need to create a variable which can symbols for only "1, 2, 3, 4, 5, 6, 7, 8 or 9 " so that I can use to check for a certain text.[code]...
View 9 RepliesHow To Create Variables From Strings In ArcObjects
Jun 30, 2010If I have a list box or something that has a list of like 4 years (like 2006 through 2009), how do I programmatically make variables of these years with names like pTable2006, pTable2007, etc (as ITable of course). If this isn't possible and I have publicly declared these tables in the declarations (like pTable2006 as ITable, pTable2007 as ITable, etc), how can I programmatically assign these variables based on user choice?
What I'm asking is, if the user wants to choose years 2006 and 2007, how can I write this:
pTable & ListBox.Items.Item(0) = [table path string] & ListBox.Items.Item(0)
(please ignore the syntax of the "listbox", I'm just trying to come up with an example)
Whenever I put something like pTable & "string", I get an error.
Variables For System Drive (most Commonly 'C') And System Directory
Jul 15, 2010What are the variables for The system drive (most commonly "C:") and system directory (Most commonly "C:WINDOWS")
View 4 RepliesPassing Multiple Variables/strings To Background Worker?
Aug 26, 2011I need to pass two variables/strings to a background worker at the same time. he background worker needs to return the first variable, and the time consuming boolean result of the second variable.From what I have read, I can only pass an object that contains multiple variables.This is where I get confused
View 1 Replies2008 - If > Statement - Does It Matter That Variables Are Marked As Strings Vs Integers
Feb 9, 2009I have a "if This > That then" statement, that doesn't seem to work, as it triggers regardless that "This" is smaller than "that". Does it matter that these variables are marked as strings vs integers?
View 8 RepliesChopping Up DatabasTable Values Text(30) To Multiple Strings Variables?
Mar 9, 2012Anyone know right off hand a cleaver way to chop up a Text value from a table... Scenerio is this I have one table with a name (Smith, Timmy Alan) in a table text(30) format. I can pull the value to a string in VB but I want to only take the last name for one string and the first for an other string.
View 4 RepliesUnable To Cast Object Of Type 'System.Windows.Forms.Label' To Type 'System.Windows.Fo
Jun 12, 2011i need to get data from checkbox in a groupbox. in the groupbox, it also have a label. so my coding as below
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Implicit Conversions From 'System.Windows.Forms.Control' To 'System.Windows.Forms.Webbrowser'
Sep 8, 2010I have the code which checks if there is a selected tab
Private Function GetBrowser() As WebBrowser
If TabControl1.SelectedTab IsNot Nothing Then
For Each c As Control In TabControl1.SelectedTab.Controls
If TypeOf (c) Is WebBrowser Then
Return c
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Way To Concatenate List Of Strings Into A Comma-separated Strings, Where Strings Are Members Of An Object?
Oct 16, 2009Say I have a List(Of Tag) with Tag being an object. One member of Tag, Tag.Description, is a string, and I want to make a comma-separated concatenation of the Description members.Is there an easier way to do this than to read the Description members into a List(Of String) and then use the Join function?
View 2 RepliesUnable To Cast Object Of Type 'System.Windows.Forms.Button' To Type 'System.Windows.Forms.TextBox'
Apr 28, 2009I have a panel with some controls in it (several textboxes, a slider, 2 buttons, and a small groupbox).. When I click a button, I want all of the textboxes within the panel to be readonly... So I have this code: [code] When I run it though, I get the following error:Unable to cast object of type 'System.Windows.Forms.Button' to type 'System.Windows.Forms.TextBox'.If I remove a button, it moves on to give me the same error but for a label..
View 4 RepliesCalling System Environment Variables?
Apr 13, 2011Below is the code i am using to read and update the system environmental variable. This code is working fine when i am executing .exe on Local Machine. I am getting problem when i try to access this .exe from Browser(using citrix i am doing this) and invoke. when i invoke from browser its going to catch block and displaying MsgBox("Unable to Create LDAP Key.
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System.io.fileinfo Cannot See A File In System Folder On Windows Server 2008 64bit
Jan 28, 2010I have a utility that is a simple exe that is not installed compiled with VS2005 and works well. But when I upgraded to VS2008 the utility can no longer locate files in the active system folder. I have UAC turned off and am logged in as the Administrator and it still can not locate a file that I can see in Windows Explorer. The file I am looking for is PakMgr.exe.
View 1 RepliesValue Of Type 'System.Windows.Forms.WebBrowser' Cannot Be Converted To 'System.Window
Jan 23, 2010Private Sub wb_Scrape(ByVal sender As System.Object, ByVal e As
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'System.AccessViolationException' Occurred In System.Windows.Forms.dll Immediately Before Entering A Click Handler?
Oct 20, 2010Win7 64 bit; fully patched VS2008 targeting FW2.0; VB.Net; running in Debug Mode (not tested in Release mode)I have a resonably complex app which I am refactoring a bit. As part of that, I relocated some code from a subroutine into a Click Event Handler. The Event Handler will, late in the handler, call the, reduced in function, subroutine. The point of this is thatNow when I click the button associated with the modified Handler I get:A first chance exception of type 'System.AccessViolationException' occurred in System.Windows.Forms.dll<br />With Error System.AccessViolationException Attempted to read or write protected memory.This is often an indication that other memory is corrupt.
at MusicManager2009.frmMain2.cmdLoadAlbum_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
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All functions of the app, except those that start from the buttonclick in question, work as before in the problem version.The problem persists after rebuilding the entire solution, after restarting VS, and after rebooting the PC.
Error - An Unhandled Exception Of Type 'System.StackOverflowException' Occurred In System.Windows.Forms.dll
Feb 19, 2010When I run my project I get "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll"
Public Class frmViewReport
Dim objForm As New frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objForm.ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")
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Error : A First Chance Exception Of Type 'System.ArgumentException' Occurred In System.Windows.Forms.dll
Nov 16, 2009I have the following code running, the first time I change the selected index, everything runs smoothly. However, if I try to change the selected index again, nothing happens and the subcategories combobox values do not change.
Private Sub cboMainCategory_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboMainCategory.SelectedIndexChanged
'* make sure the combobox is fully loaded
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Error : An Unhandled Exception Of Type 'System.ArgumentOutOfRangeException' Occurred In System.windows.forms.dll
May 6, 2009I keep getting an eroor this error says: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values.
Option Strict On
Public Class frmWeeklyReport
Inherits System.Windows.Forms.Form
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VS 2008 : A First Chance Exception Of Type 'System.InvalidOperationException' Occurred In System.Windows.Forms.dll
Feb 12, 2011A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll It displays in my Immediate Window when i run my program, I'm using a text reader to read a number of XML files using background worker...most the time it stops so something is wrong but sometimes it works fine.
View 2 RepliesError:A First Chance Exception Of Type 'System.Reflection.TargetParameterCountException' Occurred In System.Windows.Forms.dll
Feb 6, 2010I am working on a card game, and i get this werid error:
A first chance exception of type 'System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll
The code that is cousing this error is:
Private Delegate Sub ShowcardDelegate(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
Private Sub Showcard(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
If objtest.InvokeRequired Then
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Cast A System.string To System.windows.forms.form?
Feb 23, 2009I want to cast a system.string to system.windows.forms.form
View 2 RepliesIDE :: DataGridView1_CellLeave(sender, New System.EventArgs), Unable To Cast Object Of Type 'System.EventArgs' To Type 'System.Windows.Forms.DataGridViewCellEventArgs'.
Jun 27, 2011VB 2008, DataGridView,DataGridView1_CellLeave(sender, New System.EventArgs)
"Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.DataGridViewCellEventArgs'."
What is the Correct String for "New System.EventsArgs"
Anybody there is to help me out.
VS 2008 - System Variables / Editing Registry Value
Apr 21, 2010Can VB 2008 use the system variable %1 that contains what filename a program was opened with? I am making a new app that when you click a .exe file and select the right option, it will edit the registry but I need to be able to keep the filename that I right clicked on so that I know what registry value to edit, is this possible?
View 1 RepliesPrintDialog Windows - Getting An Error "An Exception Of Type 'System.Runtime.InteropServices.SEHException' Occurred In System...?
Dec 1, 2011I'm using a 64 Bit Windows 7 system and trying to use PrintDialog. I know it doesn't work on Windows 7 unless you add this
PrintDialog1.UseEXDialog = True
So I have added that code but then I get this error for the following
Dim result As DialogResult = PrintDialog1.ShowDialog()
And the error:
"An exception of type 'System.Runtime.InteropServices.SEHException' occurred in System.Windows.Forms.dll but was not handled in user code
Additional information: External component has thrown an exception."
How To Get Windows Culture Strings
Feb 3, 2011I'm wondering, Windows is installed with a current language... Isn't it possible to get those strings from a file? On a XML/INI/Database-base? Something like:
Dim LANG As My.Computer.Culture.Language = My.Computer.Culture.Language.CurrentLanguage
Dim Cancel As String = LANG.Cancel
Debug.Print(Cancel)
'Output: Annuleren
.net - Creating System Level Environmental Variables Manually?
Feb 16, 2010How do one create System Level environmental variables manually. I just installed a GeoSupport Desktop Edition software and in the document it is mentioned that I need to create system-level environmental
variables for PATH and GEOFILES manually
Add the location of the GDE executables to the system-level environmental variable PATH.Normally this means adding C:Program FilesGeosupport Desktop Editionin to the PATH.
Variables - Created An Application That Communicates Via System.net.socket
Nov 9, 2011I Have a problem with vb.net. Basically I created an application that communicates via system.net.socket. on the server side of client connect, and a thread checks whether there are new incoming data. if there are data, puts them in a few tread declared variables, together with the "index" of the server. once this is done through "INVOKE" calls a routine that checks the incoming data andperforms an operation based on the data. I'll see what I do not work
Dim returndata As String = System.Text.Encoding.ASCII.GetString(data)
TextBox1.Text = ("DATA : " & returndata & "Socketindex =" & socketindex.ToString & " Index=" & index.ToString)
But that does not appear in the texbox, appears only "returndata", the rest c 'is same thing with the messagebox, individually, can display a messagebox with variable,but when I try to make a messagebox that displays them together, the texbox same thing!
And the same thing if I want to compare them with each other, for example
if index
= 0 then msgbox ("OK")
It does not work ...
