In VB6, it was relatively easy to create a form that would allow the user to access a context-specific help system with hitting the F1 key. All the programmer need do was place a number in the HelpContextID property of the form. Is there anything equivalent in VB.NET?
I am trying to graph the entire column in the datatable using ZedGraph.
I have found some code on the web and I have tried to modify it to fit my code and the datatable that I have created. Unfortunately it does not work , nor run. It gives me an error when I try to run my code. Can someone please help me resolve this error. this error is located when I try to display the XDataMember and YDataMember.
the error which I get is this:
An unhandled exception of type 'System.NullReferenceException' occurred in microsoft.visualbasic.dll
Additional information: Object variable or With block variable not set.
Here is the code that I have:
Private Sub CreateGraph_DataSource(ByVal ZG1 As ZedGraphControl)
iam creating a set up using the publish wizard.
iam using ini files in my project,as well as some html files also
my application checking the version number from a xml file in a web site.
when it is displaying login form after installing then it is giving unable to find xx.xml file.(xx.xml file is file from which iam checking the version number from a website)
it is also having some htm file also,once i include that xx.xml file and publish then it will displaying message abc.htm file unable to find
if any one can help
I have a Windows Service written in VB.NET 2005 that consists of an EXE, a private DLL and a shared DLL. I install the EXE and private DLL to the Application Folder and the shared DLL to the GAC. I am installing on a Windows Server 2003 system.
The installation worked fine (or appeared to) when the shared DLL was already in the GAC (because another application installed it there). The first time I tried to do the install on a system where the shared DLL was not in the GAC it failed with an error that indicated that a component was missing.
It appears that when the install has finished copying files and runs InstallUtil to install the EXE file as a Windows Service it fails because it can not find the shared DLL. If I copy the shared DLL to the GAC or the Application Folder prior to the install the error does not occur. If I install the shared DLL to the Application Folder instead of the GAC the error does not occur (except now other applications can not share the DLL). If I install the shared DLL to both the GAC and the Application Folder the error does not occur.
I have adopted the last workaround as a temporary fix but I would like to install a single copy of the shared DLL into the GAC.
Has anyone seen this issue before and/or know of a solution?
BTW The problem does not occur if the exe is not a Windows Service presumably because the installation is not attempting to load any application code during the install.
Maybe I read this wrong, but it seems like you think the installutil program is going to install the shared dll in the GAC? I am not sure why you would think this would happen. It would always assume it is there or in the application folder. Maybe I am missing something.
Here is some code that I wrote but I am not sure if it is right.
Protected Overrides Sub OnStart(ByVal args() As String)
' Add code here to start your service. This method should set things
' in motion so your service can do its work.
Timer1.Enabled = True
Protected Overrides Sub OnStop()
' Add code here to perform any tear-down necessary to stop your service.
Timer1.Enabled = False
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
'Check if the event log exists
If Not Diagnostics.EventLog.SourceExists("MyService") Then
Diagnostics.EventLog.CreateEventSource("MyService", "Myservice Log")
EventLog.Source = "MyService"
'Write to the log
Diagnostics.EventLog.WriteEntry("MyService Log", "This is log on " & _
Private Sub SearchFiles(ByVal FileType As String)
Dim FilePath As String = "c:\"
Dim rootDi As New DirectoryInfo(FilePath)
Dim Di As DirectoryInfo
For Each Di In rootDi.GetDirectories
Am I using the code above correctly? I am trying to search for files using windows service in vb.net 2005. I want to be able to specify which file type I am searching for. Please help.
HI,(all in vb 6.0)
i have an dll with a form and some public functions. i add reference of this dll in new project and try to change the command button's picture from calling project.the function gets executed smoothly but i didn't get the result(change in
command button's image).
Any help or hint is greatly appericiated.
i tried using button.refresh but no output.
i also try to sendmessage api to change text using setwindotext and now i can change the caption of the button.
But i need to change the picture of button where i'm in trouble.
Please let me know any suggestion /links.
my project was working good but till when i change its icons ,its giving error when i press F5
Error 1 Unable to write to output file 'C:\Documents and Settings\Windows XP 2005\My Documents\Visual Studio 2005\Projects\*******\obj\Debug\*******.exe': The specified image file did not contain a resource section.
i got where is the problem....the problem occured when i change the icon of the application in "my project properties".
I have a two toolbars on my MDI form. both have 28 * 28 image size. now the icon which I attach with the toolbar button loose its image quality on load . Can any one help me that how can I fix this.