I would like to read each line of text from the file outputted from this block.Each line is then used with the service controller to output a list of services running on that computer.
Dim de As New DirectoryEntry()
'Name place to write file to
Dim strFile As String = "C:DomainUsers.txt"
[code]....
The following code is throwing Exception. I don't get what mistake I am making in the code. i think it is of some security rights issue. If so, how can I give the security rights to any user or application to access this windows service programmatically?
Dim sc As New ServiceController
sc.ServiceName = "DataLoad"
If sc.Status = ServiceControllerStatus.Stopped Then
[code]....
I am working in excel trying to setup a function involving multiplying a cell by a set number and then having the result round to the nearest 10. Here's the beginning of my function statement fx=e3*1.026. say the result is 8654, I need it to round to 8650. Also if it comes back 8655, I need it to round to 8660. I have about 2,000 records I need to do this to so I was hoping that one formula or statement could be used for all my data.
View 2 RepliesI have the following function written for dot net 3.5 that uses "ElementAt()" to successively return a value from a dictionary collection.
Public Function GetNextEntryInfo() As EntryInfo
If mFileInfo.Count > mIndexLoc Then
Dim entry As EntryInfo = mFileInfo.ElementAt(mIndexLoc).Value
[Code].....
is there a proper way to duplicate a function (f1) instead of re-writing every single constructor f1 has and passing those arguments from f2 to f1..i tried to import System.dll using the alias method but it doesn't work anyone knows why?
View 18 RepliesI am creating a dll to use with all my projects and have run into a problem. functions work fine and i have no problems using the dll with a project but i am trying to add xml documentation to the functions in the dll so that i have information when i call it, i can see the summary if i call the function from within the dll project but not if i call it from a seperate project.
View 2 RepliesI have a servicecontroller and though that service controller i set the name of a label.
Dim service As ServiceController
service = New ServiceController("W32Time")
Label1.Text = service.servicename*
[code]....
I am getting an exception when trying to servialize the .NET ServiceController class. It serializes fine when it's null but once I populate it I get a stackoverflow exception.So this works:
[DataMember]
public ServiceController MyServiceController
{[code].....
I've just started developing with .net CF 3.5 for windows mobile 6.5. I'm using VB 2008 as my IDE and I am having trouble with ServiceController.
Here is what I have so far:
Private Sub Stop_Service_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Stop_Service.Click
' Toggle the Messaging service -
' If it is started (running, paused, etc), stop the service.
Dim sc As New ServiceController("MessagingService")
[Code] .....
The problem is with the bit in bold. The debugger says the following:
Error 1 Reference required to assembly 'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' containing the base class 'System.ComponentModel.Component'. Add one to your project.
I've checked and the system object exists but it is marked in the object browser with brackets as "Compact Framework". I have tried to remove this and replace it with one not labeled with "compact framework" and the error does go away but then the application doesn't run in the WM 6.5 classic emulator Producing a "failed to load all components. Please make sure you have enough space in storage memory or try reinstalling .Net CF error".
I am also having a problem with the ServiceController trying to stop a windows service could someone take a look at teh below and check I am doing it right please.[code]Got this code from a Google Search. The error that came up was:Cannot open fdPHost service on computer 'localhost'.I have done work with services before but can't remember the code and can't get access to it at the moment (on my pc at work thats off :-( )
View 4 RepliesI have written the following Sub in moduleFunctions to call in any form. But it gives an error: "Name 'txtVNO' is not declared" & "Name 'txtVNM' is not declared"
Public Sub txt_Clear()
txtVNO.Text = ""
txtVNM.Text = ""
End Sub
I am trying to return a javascript function using response.write in an aspx page. The problem is that the function i am returning has lots of quotes and they are conflicting with the repsonse.write syntax. Here is a sample code:
Response.Write(" If hello.StartsWith("H", StringComparison.InvariantCultureIgnoreCase) OrElse hello.StartsWith("W", System.StringComparison.InvariantCultureIgnoreCase) Then")
This is giving me a problem as the quotes inside are cutting off the response early. Is there a better way to do this?
writing a function to validate that a user has entered their full name (so at least two names must exist in the textbox).
View 2 RepliesI have this code and I know that this part "WHERE dbo.tblenrol.SectionName=dbo.tblSection.SectionName)" of the code not right... I want to update the my tblenrol.Adviser from tblTeacherFile.Adviser if the tblenrol.SectionName is equal to tblSection.SectionName...How do I do it??
Using cmdUpdate As New SqlCommand("UPDATE tblEnrol " & _
"SET tblEnrol.Adviser = (SELECT dbo.tblTeacherFile.Adviser " & _
"FROM dbo.tblTeacherFile " & _[code]......
i grow familiar with statements queries of SQL. Now, i have to start writting a store produce and function in SQL Management studio express.
View 1 RepliesI currently have the following working[code]...
What I would like to do is expand the filter to include alternative file extensions (i.e., ".rar", ".7z", etc)
I am making a program that takes files (inside their folders) and copies them into a selected file path. For example, I plug in my jump drive, run my program and it copies my files on the jump drive over to my PC. Now my program does this but it takes the files inside each folder in my jump drive instead of creating a folder for each one in my jump drive. The result is a mess of files in the selected pathway in my PC.I went and created variables in My.settings so that you can save the file path even after you close the program. I just want the program to copy the folders(with the files in each folder) in my jump drive and move them over to my PC.I am using this program copy the files from my jump drive over to my PC, because I save a lot of work on my jump drive and I need to back it up often. [code]
View 4 RepliesThe bigger problem is that I can't seem to get everything involving using stream writer and reader working. If I start of with a .txt file already correctly formatted then I can display it in the list box. But adding data during run time is not proving successful.
[Code]....
i'm new to this site and i'm hoping there's someone out there that can help me with this problem. I'm doing a course in visual basic 2010 and having real trouble understanding some aspects of it. Here goes -
I need to do a validation check on a users inputed string. The users input is called Test_data and it needs to be exactly 10 characters long and must only use the letters " a " to " f "
I know to check that the string is exactly 10 characters long by the Len function, and i have that working.BUT - how do i check whether the users inputed string uses the letters a to f ? I thought it would involve something to do with ASCII, but i would have no idea how to form a validation check using ASCII.
I have to fill a listbox with the results avaiable by querying windows service using ServiceController.GetServices method.I will list down the code I used.I know using foreach to fill the listbox.But I want to use array.foreach with lambda or delegates.(inline function.My
VB.Net code Public class Form1 PrivateSub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) HandlesMyBase.Load Dim services As ServiceProcess.ServiceController() = ServiceProcess.ServiceController.GetServices 'For Each s In services[code]....
My application need to communicate with my self made device through serial port. I have to change the selected index of Tabs when I press a button on my device. I have Form1, Form2, Module1 Form1 Contains the Serial Port Control. Form2 contains the Tab which needs to be changed. When I press a button on device them, the button pressed is stored in an integer form in a global variable.The Interrupt for the Serial Port directs the control to the module1 where I decide using Select Case that what index of which TabControl I have to select.Depending on that, I change the Index of the required Tab.
PROBLEM:cross thread exception is fired as soon as the control reaches the statement where I Modify the SelectIndex property from the select case at Module1.While, on my other PC, the SelectIndex property is changed, but the next tab is not shown.
BUT, if I put all this code in a button control, and try to activate from there, then it works perfectly. However, I have to navigate through the tab controls using my self made device.I searched a lot on net and came across a solution which describes that we have to use delegate function and invokeRequired methods to ensure that the procedures run on the same thread.I am not able to decide that where exactly shoud the code for delegates and all be written, in form1, or form2, or module1.Also, in the hit and try that I did, I always got the value of InvoleRequired as False.
Here is the part of Code that I wrote for Delegates
Code:
'Form 1 is BLINDHELPER_SIGNIN
'form 2 is BLINDHELPER_USER
' I have defined these at Module1
Public Delegate Sub DeleToManageTabs(ByVal tb As TabControl)
Public Sub manage_Tabs(ByVal tab As TabControl)
MsgBox(tab.Name)
[code]....
After using this code also, there is no change in working of my application.
I created a Windows Application using VB.NET 2005 Express Edition.In my project I have two references to DLLs from a 3rd part product, so that I could access its API (Ascent Capture 7.5 from Kofax if you needed to know).For the two references, I have set the Copy Local property to False, and in the app.config file I am using assemblyBinding to reference one of the DLLs.When I build the application and then execute the EXE file in the inRelease folder, everything works fine. When I do a publish and try to run the setup.exe application that is created, I get an error message that basically states the DLL I referenced in the app.config file needs to be installed in the GAC.So why does my application work fine from the Release folder without having to do anything to the GAC, but I cannot install using the setup.exe from the Publish? I would like to use the setup.exe because I need to install this on other machines than my own.
View 1 RepliesThis is a very simple piece of code involving threading and events. I am just refreshing the old grey matter as I find myself off work sick for a period of time.
Code:
Imports System.Threading
Imports System.Threading.Thread
Module Module1
[CODE]...
I have a form with a tab control, containing a small number of tab pages. I'm writing a sub procedure to clear the controls within a groupbox for the selected tab. A selected tab will only ever contain ONE groupbox and within a groupbox will be command buttons, labels, text boxes and possibly a combobox. The first block of code below firstly finds the groupbox within the selected tab. The next part loops around all control type and if of type texbox clears the text.
Now hears the head scratcher/confusion it error's with :-
Unable to cast object of type 'System.Windows.Forms.Button' to type 'System.Windows.Forms.GroupBox
Which I don't understand as I cant see where Im converting objects simply looping through all controls and then ONLY if type of control is textbox then clear text.
'Loop around all controls in form, simplified that all controls
'are within a SINGLE groupbox and clear contents or reset to default value
Dim groupbox = (From grpbx In tabAdmin.SelectedTab.Controls _
Select grpbx = DirectCast(grpbx, GroupBox) _
Where TypeOf grpbx Is GroupBox)
[Code] .....
Consider the following method that stops a service:
Public Function StopService(ByVal serviceName As String, ByVal timeoutMilliseconds As Double) As Boolean
Try
Dim service As New ServiceController(serviceName)
Dim timeout As TimeSpan = TimeSpan.FromMilliseconds(timeoutMilliseconds)
[code]....
I agree that for domain model code that using the "traditional" unit testing approach makes the most sense as this would lead to a design that is easiest to maintain. However, for code that deals with the .net implementation of Windows API related stuff (file system, services, etc), is there really an advantage to going thru the extra work to get "traditionally" testable code?
It's hard for me to see the disadvantages of using Microsoft Moles for things such as ServiceController (or the File object). I really don't see any advantage of doing the traditional approach in this case.
I have a datatable as shown in the figure. Let me explain my required based on this image. I have 7 rows of data. The rows 1 and 2 contains columns till UnitSqcNo same. I want only row 3 among the two. In general I want select all the rows with distinct model, unittype, unit and rest with greater CompId. ie the table should look like
View 1 Repliescreate website involving payments plus some data entry eg booking of some facilities with the main data kept at a LAN window system.
View 4 RepliesTrying to write a program to stop and start a service - but when i type this I get the following error msg: ServiceController not defined.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
' Check whether the Alerter service is started.
[code].....
I want to make an numerical integration method with takes in an analytic function and integrate it over a specific interval. For the numerical integration procedure I want to use some procedures in nr.com. The problem is that these are programmed in C++ and they uses functors to pass a function to the integration method. How can I do this in VB 2010?
I want to initialize the function (i.e. set a=1,b=0 for function y(x)=a*x+b) and then pass the function to the integration method. Then when the integration method call the function it only calls the function with one parameter (i.e. x since a,b is already set)
What is the best way to do this in VB2010?I want to make a general integration method where I can pass any single valued function and integration limits.
I have just started using VB, and from what I have found so far it seems like the tools you have is
- to us a delegate for the function
- to use a lambda expression for the function
- send a pointer/adressOf
- to create a function class/structure and submit this to the function
As for now I am most inclined to create a function-class. But I am not really sure how.F.ex. I make different classes for each "uniqe function" I want to integrate, but how can I pass them to the integration function when I need to specify the argument type in the integration-function-call?This seems like a basic problem which applies to many Math operations, so I think it would be very useful to clarify this.
I'm trying to undersatnd the syntax of calling a funciton and it seem confusing when I'm using a web service in ASP.net. Maybe this question should be in an ASP forum, but it is a VB question. This simple web service allows you to type in your name and it response with an alert box with you name.
My question is, How can you call a function with 2 arguments when the function is only defined for one. I understand that the second argument is actually a method that handling the respons, but how can you interchange function arguments for methods and how do you know that there are methods for
Here's my call:
<script type="text/javascript">
function HelloWorld()
{
var yourName = $get('txtYourName').value;
[CODE]...