Write A Code To Stop User From Entering A Duplicate Course Id
Mar 9, 2012I need to write a code to stop user from entering a duplicate course Id and I am having trouble.[code]
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Able To Stop User From Entering Other Information Until Enter Right Information In The Textbox
May 24, 2012I have a text box where i am entering numbers of double datatype andon the Keytdown event of the textbox some checks take pace and in certain circumstances I want to be able to stop the user from entering other information until they enter the right information in the textbox (where it says right here) . now when I say exit sub the textbox somehow loses focus . but this is not how I want it to be I want the textbox to remain with the focus so the user can change the information . How can i go about this. And the other thing is why is my txtDestPayRate1.Focus() just befor the exit sub not working?
Private Sub txtDestPayRate1_KeyDown1(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtDestPayRate1.KeyDown
If e.KeyCode = Keys.Enter Then
[CODE]...
VS 2010 Stop A Block Of Code Executing When User Clicks "Stop"?
Mar 1, 2011I have a START and STOP button and when the user clicks "start" the program does a whole bunch of calculations and all. However, I noticed that when I was testing the program I clicked STOP the program continues to execute stuff.
My START code is basically a while loop that iteratively does some calculations.
So I just put a boolean variable as the while condition and when user clicks stop its set to false and when user clicks start its set to true. However, when I click stop, the condition is set to false yes but it still executes all the code until the condition is re-evaluated right...so my question is how can I get out of the while loop when user instantly clicks "stop"?
Write Some Functions To Stop From Having To Use The Same Code Over And Over In Program
Feb 13, 2010I have a program and the program works fine. The only thing is that I want to shorten it up and stop using the same code over and over. I use the same redudant code through out the code. I want to write some functions in order to stop from having to use the same code over and over in my program. I wanted to know if someone could help me with functions: Here is part of my code below.
[Code]...
Write Code That Read Integer Numbers From User?
Jun 16, 2009Iam trying to write code that read integer numbers from user (intered in form) and put it in array and then i will do some calcuation.I declare The array z and index of array p at begining of the class (global), I dont specify the size of arry couz that it depend on user.
If CInt(l1.Text) >= 0 Then
z(p) = CInt(l1.Text.ToUpper)
l1.Clear()
l1.Focus()
[Code]...
Disable User From Entering Desktop?
Jun 6, 2011How do i disable user from goto desktop and when they press Control+Alt+Del it must prompt with admin username/Password.Is it possible to do....i have created a login page but i have no idea on how to make it prompt when user press Control+Alt+Del
View 3 RepliesLock Computer Before User Entering Name?
Mar 20, 2009i want to develop a billing software for my net cafe. how to lock the computer before a user entering their name in my Login form?after they entered their name, this form will insert a new data in userLogin table (user_login_name and login_time), and the computer will be available to use.
View 2 RepliesPrevent User From Entering Numbers Or Other Characters Such As $%
Nov 22, 2009i want to prevent users from entering numbers and other characters such as (_,"*&^$#).... into my textbox-u know what i mean! I want my textbox to accept only alphabets. I have written a function that is able to check the numbers but i don't know how to check whether the text contains those special characters. Here is my code for the numbers. i'm sure, just as i'm able to check the numbers. i'll be able to check for those characters.
Public Function ValidateText(ByVal GetString As String) As Boolean
Dim Count As Integer = GetString.Length
Dim i As Integer
[Code].....
VS 2008 Prevent The User From Entering Record?
Jun 29, 2010 I am using a database (access) were i am not using a primary key field. I would like to prevent the user from entering records , if certain fields allready exsists.
I would like to check for 3 of the fields. When these 3 fields has been filled previously with the same data as the new data, i want to return a message.
I am looking at the fields txtWeeknumber.text & txtTopic.text & txtSubOutCome.text
Here are some of my
[Code]....
Entering Last And First Name With Only 2 Lines Of Code?
Feb 5, 2012I am a beginner trying to create a console program that lets the user enter a last name, then a first name with only 2 lines of code. The program should then display the first name followed by the last name.
I know how to do this, just not in 2 lines of code.
Enabel User To Open Any 1 By Entering Date Which Is Name Of Worksheet?
May 3, 2010have 4 worksheets, need to enabel user to open any 1 by entering date which is name of worksheet?
View 1 RepliesPrevent A User From Entering Data Into A ComboBox Rather Then Selecting
May 14, 2012Is there a way to prevent a user from entering data into a ComboBox, rather then selecting, or can anyone suggest a routine to catch and prevent entries so the user can be made aware the they are not acceptable?
View 7 RepliesVS 2005 Determine And Alert User While Entering Password To Login?
Mar 13, 2010I have created an application which asks the user to enter password to login.Now how can i inform the user(if his caps button is on) that his caps button is on while he is entering his password?
View 3 RepliesRecord The Screen When My User Clicks Start, And Stop Recording When He Clicks Stop?
Jul 27, 2008I need to record the screen when my user clicks start, and stop recording when he clicks stop.I've searched for a while on this subject, and I have found nothing.I want to do this without adding any files to my project, I just want to use some built in function in Visual Basic, and start recording, or even take a snapshot and add it to an AVI file or something...These are some sites I have found:
http:[url]......
This code is in VB6, but I am not sure how to even start using it?
Write Code For Application, In Which Data Is Get By User And Entered Data Is To Print In A Particular Format?
Mar 2, 2012i just write code for application, in which data is get by user and entered data is to print in a particular format?give me a code for vb.net button by which after click on it will print entered data?
View 1 RepliesPrevent Duplicate Values Entered By User?
Feb 10, 2012How do I prevent users from a inserting a duplicate value using SQL Query
datatype is VarChar(50)
e.g. the name field has already been defined as "Josh", I don't want it to be able to add another "Josh"
VS 2005 - Make A Program Intercept And Stop Certain Write Requests?
Sep 1, 2009Is it possible to make a program intercept and stop certain write requests? I need it to stop viruses from tampering with an antivirus database. If you can, how do you do it? If not, is there another way to stop viruses from changing the database?
View 39 RepliesWrite Some Javascript Code In Response.write When SqlDataSource1_Deleted?
May 23, 2012i have a notification j-query plugin .. i taste it in my page (working 100%)but when i want to use it in a event SqlDataSource1_Deleted with the response.write method it does not work
Protected Sub SqlDataSource1_Deleted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) Handles SqlDataSource1.Deleted
Response.Write("<script type='text/javascript'> showNotification({message: 'This is a
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Date Entering From Maskedtextbox To Access Is Not Entering Date Correct Year?
May 24, 2010here is insert record coding
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|hvaccine.mdb")
cn.Open()
Dim str As String
[code]....
Any Tools To Check For Duplicate Code
Jun 27, 2012I wish to get a quick feeling for how much copy and paste coding we have, there are many tools for C# / Java to check for this type of thing. Are there any such tools that work well with VB.NET? (I have seen what looks like lots of repeated code,
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Passing A Control To A Sub Rather Then Duplicate Code
Jan 10, 2011Sorry about the bad title. Just wondering if it is possible to use a control name as parameters rather then doing the same code over and over again. Example.
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Display A Messagebox That Will Prompt The User If There's Any Duplicate Text On The Four Textbox?
Mar 16, 2011i have 4 text box how can i display a messagebox that will prompt the user if theres any duplicate text on the four Textbox. Main idea: i just want everything that the user typed in each 4 textbox to be unique."i tried coding at the textbox that if the text box is change, that if theres another textbox with the same data i typed a messagebox will prompt. almost does it but, since i added a diaglogresult code that if i click yes the text box with the code will be change to a null object.. but since the other text box are null objects the messagebox will prompt me again..
View 7 RepliesVS 2008 : Stopping A User From Entering Text Or Changing Text In A Textbox Without Disabling It?
Apr 26, 2009A] Is there any way of stopping a user from entering text or changing text in a textbox without disabling it or
B] Is there a way of changing the texboxes back and fore color whilst it is disabled?
Allow The User To Vote For Any Contestant Any Time By Entering The Last Name Of The Contestant"?
May 5, 2011I am having much difficulty with it... heres what i have to do
"Write a program that allows users to vote on their favorite singer American Idol style. Your program should have the following features:
Your program should use a single listbox to display the names of the contestants and the number of votes for each contestant.
Use a class to hold the contestant�s first name, last name, and number of votes. The class should include a method to increment the contestant�s vote count by 1. Be sure to use property procedures for the first name, last name and number of votes properties.
Your program should read the names of contestants from an input file and display them in the listbox. You cannot make assumptions about how many contestants there will be in advance.
Your program should allow the user to sort the contestants by the number of votes they got. It should also allow the user to vote for any contestant any time by entering the last name of the contestant."So far this is the only code that I have... not sure why nothing is working.
Public Class Form1
Dim count As Integer = 0
Dim namearray(0) As Contestant[code]....
Duplicate Code And Method Overloading / Overriding
May 18, 2012This is a general question about Object Orientation and specifically overloading functions in .NET (or any other framework or language). I am looking at an application that has a lot of duplicate code. For example, have a look at the following functions: [code] I would of thought that best pratice would be to put: //code that is specifically relevant to Test1 variable in a separate function as it is common in both functions.
View 2 RepliesVB Code For Preventing Duplicate Entry In A Column?
Mar 22, 2012I am trying to create the code which will stop duplicate entry of an Account Number being entered in the column 'Account Number'. The user is to input an account number (three digit account number i.e 153) using an input box and this will then be printed into the A column.What is the best way to prevent duplicate account numbers being entered?
The code I have for the input/account number array so far is:
[Code]...
Insert Delete Duplicate Records Through Button Code?
May 3, 2012How to make only one record at a time get inserted in the database table and also delete from the other table?
Once the details are filled ,I insert it in table1 as the new record and I delete the same record from table2.[code]...
Datagridview : Evaluate The Duplicate Item From Serialtextbox When The Scanner Put In The Code?
May 10, 2012i've this code to insert records into datagridview
PrivateSubForm1_KeyUp(ByValsender
AsObject,
ByVale
AsSystem.Windows.Forms.KeyEventArgs)
[code]....
the trouble is that i need to evaluate the duplicate item from serialtextbox when the scanner put in the code?
Disabling Button Before Executing VB Code To Prevent Duplicate Records?
Feb 15, 2012I need to disable a button after its pressed so the user does not have the ability to click it again as this would replicate the process in some cases.After alot of searching I found some tips - alot of code I found I could not understand.This is what I have come up with:
On page load:
If Me.Page.IsPostBack Then
'lblDetails.Text = "disabled"
[code]....
I also read somewhere that I should use: System.Threading.Thread.Sleep(1000) to delay the process or something - not entirely sure why I would do this though.Although, the problem with my above code is that when the code behind page performs validation checks, it exits sub before executing my INSERT SQL code - so when it does this it also disables the button.I am not entirely sure if the above method is fool proof or whether it is a **** piece of code that won't work 100% of the time.On another website I found a script to put on the actual HTML page with <script> tags:
Code:
<script type="text/javascript">
disableSubmit(frm) {
[code].....
VS 2010 - Duplicate Control - Datagridview With Code In It Plus Buttons That Do Various Things To It
Feb 9, 2012Wondering if there is a way I can duplicate controls and have them work properly? basically, i have a datagridview with code in it plus buttons that do various things to it etc etc. ideally, i'd like to be able to have two of these datagridviews on show. So, user presses button, second datagridview shows. Note that I don't want them to both display the same data - they should both be independetly editable..
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