New to programming completely,on VB 10 Express. I am in the process of creating a keypad which I can punch in numbers 1- 9 to enter a password. I have 9 buttons for the numbers. I've got the keys to print the numbers into the textbox above but when I press a second key it replaces the first number in the text box.
My question is, how do I make the numbers go in sequence, so instead of
(Press 1) - 1 -
(Press 2) - 2 - (clears 1)
I want it to go like
(Press 1) - 1 -
(Press 2) - 12 -
and so on...
I am trying to generate autonumber the sequence is like this. From left to right, last two digit from Year, Month in numeric and the last three digit number be from 001 to 999. I tried with the below coding but the sequence is not coming correctly.
I am working on student application form in vb.net. I designed a form with fields like firstname, Middlename, Lastname, age ,____,DOB,Education.Height and Weight. Back end as SQL Server 2005. I just want to generate sequence numbers in textbox using vb.net. While loading the form,i should generate number as '1' and second time,if the form gets loading it shows '2' and goes on...
Im trying to complete code for a program I am running regarding the Collatz Conjecture. Im using Visual Basics 2010.This is the code I have thus far :
Dim a, count As Integer a = TextBox1.Text count = 0 ListBox1.Items.Clear()
[code]....
This code allows me to type in a number and see the length of the hailstone sequence and the hailstone sequence itself. What im not quite sure on how to do is this following: I would like to add the maximum sequence number reached in my program, but I am unsure on what to do.
I am writing a matching program, and need 24 objects to randomly appear, each twice, across 48 spaces. I figured the best way for me to do this would be to assign the positions a number 1 through 48. but the problem is I can't find a way to generate a random number sequence in visual basic 9 .netI found many examples in visual basic .net but the conversion doesn't work. If not some code, many some example programs that either use a random number sequence or randomly sets the position of objects.
I have a timer that basically counts a number up in sequence in a label. On the On Text Change sub for the label I have functions run when the label is at a specific number. Everything works fine, the only problem I have is I have information pulled from an ODBC link to a pervasive database every second, which slows down the program. I have several flash components that run so slowly because of the data update. Now I have tried both using a dataset and coding the query but it is still ver slow and processor intensive, I think its because the Pervasive ODBC link is somewhat slow. Is there a way to have my data pull timer run in the background so that it doesnt effect the performance of the rest of the program?
Write a function that will take one integer input parameter, create a sequence of numbers stored in an array from 0 to that number, and the numbers are a summation. For example, given 7
In a project I'm working on, I've assigned each user a unique ID with the following code. [code] However, I want to replace the number at the end (RecordCount) with a randomly generated sequence of 4 numbers (no 2 can be the same).
I'm trying to write a function which obtains the sequence_number by counting the records in a table that fit a particular criteria and if the result is 0 or nothing sets a variable to 1 but if the result is 1 for instance, the variable will be set to 1 + 1.
This is the code i'm using but i'm not getting the correct result when results are actually returned. For instance, if the result of count is 1, i want "seq" to equal 1 and total (which represents the sequence # assigned to the next record which is entered with the same plan and date) would therefore be 2 which is the result of seq + 1 (i.e. 1 + 1)
I Am working on a sequence checker that will check a list of numbers to make sure they are sequencial? however we now have a new job for a 5 in 1 layout so the serial number i split up over 5 collums and mixed with other data. i can import the data into a data table split by ","'s ?
I need to know how to make a number to number if statement e.g. if min = 20 to 40 then ...
Current code:
If hour = 8 And min = 20 or 21 or 22 or 23 or 24 or 25 or 26 or 27 or 28 or 29 or 30 or 31 or 32 or 33 or 34 or 35 or 36 or 37 or 38 or 39 or 40 Then TextBox1.Text = "Test" Else TextBox1.Text = "Text1" End If
I have a number of lines of text on an .aspx page that I want a user to be able to edit, I am not storing this text/information anywhere in the database. I just want it to be information that is displayed to the user but can be editable, so the user can view the text and if there is a mistake or want to make a change they can do this by editing it.
I have seen that if you display data in a label and put a textbox beside it then, the textbox can move into the place of the label - I have done this for other text on the page however that method would not fit for this purpose because I require this edit of text to be for a number of lines.
I need to check a value and make sure that it is not a negative number using a try catch statement I keep getting an error saying that I have to use a method.
Try TotalCurrentBalance < 0 Catch ex As Exception End Try
I wouldn't put a if statement would I? I am thinking that would defeat the purpose.
How to make a random number generator, and I need one for what I am making. I need something that basically says, "make random number between 1 and 4."
make autonumber ID for my database. [URL] I followed the instruction there to solve the problem. I came up with this code.
Try Dim maxid As Integer strsql = "select StudID from tblStudent"
[code].....
I thought I already made it right because I was able to insert the first record with the right autonumber for ID which is 2012-00001 until I tried to insert the second record. It says that (Conversion from string "2012-00001" to type 'Integer' is not valid) and the highlighted part is (maxid = cmd.ExecuteScalar).
i got an error when i simulate the thing. To write in a file any "billet" generate the error is : Invalid CastException was unhandled: The conversion of the chain "[" in 'Double' was invalidAlso, i don't know how to make a series of random number between 1 to 49 for each number of a Billet object
Here's my code Public Class Billet Dim _num1, _num2, _num3, _num4, _num5, _num6 As Integer
I'm trying to format a phone number in VB.NET 2008 in the code. user can type in this numberfor example: (203) 555-1212The format I would like the phone numbers to appearis this:203.555.1212I haven't been able to find the correct format.I tried this:Dim x As String = "(222) 333-4444"Dim joe As String = String.Format("{0:###.###.####}", x)
How i can make random number with tens with function Random. If i make Random.Next(0, 500) then it gives me any number from 0 to 500. But how i can make that it gives me not any but tens. Something like: 10, 50, 480, 370 Only tens not any number?
