This code works perfectly on my users WEB SERVER - which is in the domain of that system...
Dim domainContext As PrincipalContext _
= New PrincipalContext(ContextType.Domain, "domainname", "DC=domainname; DC=morexxx; DC=moreyyy")
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What I want to produce is a form with about 20 text box's on it that are linked to a timer. That is easy, what isn't easy for me is how to get the data in a loaded form from access to another VB app. (timer form will be limited to one instance)
I have an access database which copies a string to clipboard and then opens a vb app. I have a button on that app which captures the clipboard text and moves it to an empty field starting a timer (lots of fields, keeps searching till it finds an empty field).What I want to know is: can access talk to a vb form that is already loaded and start a function?ORIf access can't talk directly to a vb app, can vb apps talk to each other and swap data (not just keystroke macros eithre)?
I can get access to copy text to the clipboard, launch a VB program that grabs the text in the clipboard and starts a timer, but can I get that VB app to talk to a second application?EDIT: I should add that VB doesn't need to talk to any tables in access, just what is in the clipboard.
EDIT: Tried to make 2 instances of the same app talk to each other using my.settings but it didn't work.
Could I make them talk to each other through a file other than my.settings file OR make the my.settings file absolute regardless of how many instances?
I've downloaded this word counting application that says I can use it from my own app Here's some of the doc PractiCount and Invoice Enterprise OLE Automation Interface Top Previous Next Programmer's Guide to PractiCount and Invoice Enterprise OLE Automation Interface PractiCount and Invoice Enterprise Edition includes OLE Automation interface to access its internal objects and structures and to control counting and report generation from your programs.
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I'm a novice and after toying with some basic ideas on how to talk to a modem with VB.net, I think there may be much more to it than I realize. (?) I know my modem is fine, I can use hyperterminal to call out on it with no problem.So, how involved is it to talk to a modem? My initial thinking was that I could simply talk to it via a serial port using AT commands sent and rcvd as a string.(?)My modem is set up with COM2 9600 8n1.I've setup a serial port with the same parameters in my code.
View 13 RepliesIm needing to create a 2 applications that can talk to each other. One wil run on a server as the server application and others will run on workstations as clients. I want them to connect to the server app much like a chat program would work. I want to be able to send commands from the server to the workstations such as reboot, open this file, things like that. I also would like to be able to send the commands backwards to the server if needed as well. i think a chat program could be modified to do this by "watching" the message and if the word "reboot" comes through then the server/workstation would convert that to a command.
View 9 RepliesI use several different applications for analysis of pupil data. Each of these applications require similar or identical data but because they don't draw their information from the same sources there is often a need to enter this data more than once which obviously is a waste of time. Some of the data is accessed through the intranet via IE, other applications are standard Windows apps. I would like to create some sort of bridging application to allow data to be automatically shifted from one location to another but have no idea how to use one application to control another
With regard to getting data from the intranet, I have managed to write an application that can retrieve some (but not all) data off a particular page of HTML. It does this by searching the source HTML but some of the data that appears on the page isn't present in the source file. This is very frustrating because I can see it in the browser but can't seem to access it through my application.
I am not new to programming but have little experience and am trying to learn VB 2010.
We have HP Procurve network switches and I know that with a telnet application I can login to the switch and it will tell me which MAC address is connected to which switch port. Im trying to write a computer inventory program to track my computers and it would be really cool if I could figure out how to determine which computer is plugged into which port on the switch. Problem is that I have no idea how to go about doing that.
Is this anything anyone has tried before or does anyone know how to go about doing it?
Ive been hunting on line but havent found anything useful so far and thought Id ask here in the off chance someone knows what Im talking about.
I have a USB HID temperature sensor. I am trying to communicate with it using VB.NET 2010 in a 64bit app I am writting. I had some code mcHID.dll that works, but it is a 32bit app and I don't want to change my whole app just for this dll.
View 7 RepliesAlright, I'm currently trying to use a Web Service to talk to an Active Directory. I've spent hours scourging the net and can't find a solution to this.The current password is Testing1234
And I want to change it to Complete9876 But I get this error message:
System.Runtime.InteropServices.COMException (0x800708C5): The password does not meet the password policy requirements. Check the minimum password length, password complexity and password history requirements. (Exception from HRESULT: 0x800708C5) obviously, this makes little sense, since the password does indeed meet the requirements. Here's the
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I am writing a VB.net client to write to and read from a named pipe in byte transmission mode.I learned from the MSDN article that CallNamedPipe() only works for message-type named pipes.
So do I have other choices, or do I have to change the pipe server code to message type.
So the below code validates test.xml against validate.xsd (found the sample code in these forums).
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim myDocument As New XmlDocument
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Inside the ValidationEventHandler, how can I get access to that <Date> XMLElement (or whatever element that was invalid)?
I want to access <Date>'s parent node, so I can access <ID> and figure out where this error occurred.
2) Is there a way to pass parameters into ValidationEventHandler from Form1_Load? (Like say I want to pass it an Array to store all the validation errors it finds).
3) Currently exception.linenumber does not work (it returns 0). Is there a way to get the line number the error was found?
You have failed to give me "Staring Point".If you don't give me "Staring Point" the program will terminate.I'd like to terminate the entire program based on dialogresult. Do I just kill my main form or is there a line I can put in there to exit program?
View 4 Repliesis there any way of making a textbox only accept intergers and treat them as such when doing calculations.
View 5 RepliesI have text box where scores are to input between 0 and 100, they user also needs the option to enter a text word such as bye or BYE. I having problems getting the validation to work here is what i have so far please let me know what I'm doing wrong.
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I have code that will validate whether or not the input is numerical. After that's passed validation, I need to check and see if that value is greater than another.
Here's the code for the numerical validation (it works)
If Decimal.TryParse(EndOdometerTextBox.Text, EndOdometerDecimal) Then
ErrorProvider1.Clear()
Else
ErrorProvider1.SetError(EndOdometerTextBox, _
"Please enter a numeric value.")
EndOdometerTextBox.SelectAll()
e.Cancel = True
Now, I need to verify that the input for this is greater than another decimal (BeginOdometerDecimal). How can I do this? Everything I've tried fails completely (ignored) or messes up the fist validation.
Dim pc As PrincipalContext = New PrincipalContext(ContextType.Domain, GetPath) ADUserInfo.PasswordVaild = pc.ValidateCredentials(LoginName, Password)
View 1 Repliesemail validation for textbox in vb 2008
View 2 RepliesHow can I ensure that my program function can only run once a time per day? I wonder how did those commercial software that did something like 30 times/days trial. How did they store the value in the sense that altering the system date and time would not prolong the trial. Currently I am thinking of validating the date through internet time since it can't be alter by user. After which, I will store the value online. However, this does not seems to be feasible if its an offline application. I wonder is the any other better way to do it?
View 22 RepliesI have a control which validates the data entered and it is working. I created a Close Button and set the Cause Validation property to False. The validation keeps on running even though the property is set to false. As a matter of fact, it happens to all the controls as if there is a bug in VB.Net.
View 10 RepliesI validate TextBox for numeric and length no more then 7 characters. I'm checking for Not IsNumber and Len. But I want to give a user to save record when TextBox is blank.
View 12 RepliesI have a piece of business-soft to make the lives of our employees easier. It's fairly typical, a tabbed-MDI style main form with a load of buttons that activate each of its sub-modules.
I have security set up on it so that someone in sales can't enter the module for purchasing, etc... I authenticate the user by having them type in their network password and check it against the AD server with this function:
'Remember to Imports System.DirectoryServices for this to work
Private Function ValidateActiveDirectoryLogin(ByVal Domain As String, ByVal Username As String, ByVal Password As String) As Boolean
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Basically i am trying to make a form which is in essence a switchboard. Just some buttons to launch some executables. Here is my
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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I have an application has a data entry form, and currently I'm using the form validation and validated events to validate the data - along with an error provider. I've read that this logic should be placed in the Dataset rather than the form. To that end, i've started exploring how to do that.
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iam currently working on my uni project and i have encountered a problem with valadation section.My system displays a message telling the user to input any fields that they have missed out on, listing the name of the field. However as these IF functions are in order the user must input the data in the order of how it is in the code. for example if the "consweight" is inputed and the calculate button is pressed, it thinks that all valadation above it has occured, when those fields are still empty.
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I'm using a series of nested if/then/else statements to make sure a user enters information into each text box or chooses a radio button. What would i use to say if no text is entered in textbox1, then ... also what would i use to make a sure the user choose one or the other radio button? for example i also have a combo box, i used "If SubjectComboBox.SelectedIndex <> -1" for the if statement.
View 2 RepliesI have a DataGridView where Cell_Validating is being done. I have a Cancel button on my form that allows the user to exit out of the DataGridView changes. The problem is that if a cell was currently flagged as in error, I cannot exit and remove columns from the DataGridView. I get the following error: Operation did not succeed because the program cannot commit or quit a cell value change. Is there a way to cancel the validation once the focus has been removed from the DataGridView? Here is my Cell_Validating
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When trying to validate controls on a windows form I realise the .validated() for each controls fires when the focus is lost. Instead I'd like to validate only when the button is pressed at the bottom, how would I do this?
View 3 RepliesA Form has two textboxes (txtA, txtB) both with the Causesvalidation property set to True. An ErrorProvider EP is added to the form.The Validating event is as follows:
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I have two problems related to validation of the DGV cell. First; when I clicked a ToolStripButton, CellValidating event isn't fired. And then it causes problems for me. It needed to be validated.
View 18 RepliesI have a form set up where users can enter their booking for a room at my college. I want to validate the user input to avoid SQL injection (my program uses a MS Access database) and also stop numbers and synbols in their name, etc.I can do the validation fine, but there is to be a lot of validation and then methods executed only if all validation tests come back as true. I did have something like this:
If txtName.Text = "" Then
frmBookErr.SetError(txtName, "Name field cannot be left blank.")
fail = 1
Else
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And then check the fail variable, but it obviously gets overridden later in the form if one of the validation tests come back as true.