VS 2008 Verify A Textbox If Contains At Least One Numeric Digit And One Alpha Character Using Loop?
Mar 24, 2010How would you verify a textbox if contains at least one numeric digit and one alpha character using loop?
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VS 2008 Sorting Alpha - Numeric?
Jan 17, 2012How can i sort the following
2 Module for Drawing
6 Module for Typing
5 Module for Maths
[code].....
Textbox To Allow Only Alphabet (no Numeric Character)
Apr 23, 2012I want all my textbox in a form to allow only alphabets,no other characters.I can do this with only one textbox at a time.Is there a way to do it for 10 textbox at a time.[code]
View 6 RepliesAlpha Numeric Sorting For Binded DataGridView?
Dec 9, 2010I am using VB.NET 2005 and my problem is to sort binded DataGridView using numeric sorting (but for strings). As i understand problem is the same as in:http:[url].......or in http:[url].......My DataGridView.Datasource = DataTable. I want DataGridView to be able sorting numericaly when Column headers are clicked. This common function must be very easy, but unfortunately it is not :(. How can i get write sorting? I don't find answer in internet.Link1 is without explanable and i think it is for unbinded DataGridView and link2 is for for C+ or C#.
Examples:
Real Sorting when clicked on "Ports" header (other columns need write sorting too):
"COM1"
"COM10"[code].....
Checking Password Field For 1 Numeric And 1 Alpha?
Feb 25, 2011I have a textbox that acts as a password field. It is supposed to contain a value at least 8 characters long and not greater than 12 characters in length. I need to construct an if statement that checks to see if there is at least 1 numeric character in the string and at least one letter in the string.
View 4 RepliesKeyUp Event If Keycode = Alpha Or Numeric
Apr 28, 2010[Code]....
whats the simplest way to achieve this? is there a built in value for this or regular expressions?
Sort An Alpha Numeric String Array?
Nov 22, 2010dear all i have a list<string> which has the following c1, c1a, c30, c3a, c2,c4b ,c10b,c10a
i cant use the in built sorting function because it gives me in this order
c1
c1a
c10b
[Code]....
ie i want to sort based on second intiger in numeric order ie 1,2,3,...10...30 and then the third a,b,c etc for example c10a,c10b,c10c
Generate Random Alpha-Numeric String 18 Characters Long
Jan 12, 2009I nedd some help in generating a random alph-numeric password for a form that I building. The form should suggest a password that 18 characters long. The user would either agree to this password or enter their own password.[code]When I use this I get a two digit number.
View 5 RepliesUse MODI OCR To Process Checkboxes (non Alpha Non Numeric Characters/items)?
Mar 27, 2012I have a vb.net application successfully processing the text in TIF files, but it is ignoring the checkboxes. Is there anyway to use MODI to process anything within the file that is not text? Such as a mark that a person has made with a pen inside a checkbox? I think I would need to be able to evaluate where the pixels are. This is for a zero budget personal project.
View 1 RepliesCalculate Characters In One Row On Special Defined Numeric Value To Each Character Or Group Of Character?
Aug 25, 2011How do I write an expression to calculate all characters of each row by my own defined value to each character = all the A and B and C and etc. will be as 2 and all I and J and whatever ... will be 1 so I need an end result of the total.
View 3 RepliesConverting Text Containing Alpha-numeric & Special Characters To String Of Only Capital Letters And Numbers
Nov 19, 2011I have encrypted a string to something like this:
1. Asak2$)kla1015QAXKFskfa332aSJ2(Ska@Skljcmcel3p.lq,aowpqaskla2@)Skx.:Pdm^),dfs;
what i want to is convert this string to something like this
2. JXK2LB AP2WXB S1P0XE ZXPA3H X1LAKW DOXPS3
both 1 & 2 the above strings are fictitious (i made them up to make my point clear)
I am trying to make a licensing system for my VB 2010 express application. (2) above will act as a serial key which can be derived from (1) which is an encrypted form of something unique of the client computer.
I will then confirm the (2) from the client.
IDE :: Send A Character To TextBox Inside A While Loop?
Feb 11, 2010I would like to show that the computer is busy and not frozen during a long file transmitted over Serial Port.I have the following loop.The intention was to show one "*" for every line sent.
While (fs.EndOfStream = False)
lineRead = (fs.ReadLine)
TextBox1.Text = "* "
SerialPort1.Write(lineRead)
End While
I can see the data sent on the Scope but the chain of "******...." show up after the transmission ends.The WHILE LOOP is actually working but the TextBox1.Text = "*" is not writing to screen.I would like to see the train of ******** same time as the transmission is active.The * is to show that the computer is busy and not frozen.Writing a copy of the actual serial data transmitted to screen is also another option that I can use.
Split String At Alpha Character?
Mar 3, 2011I have a string that I need to split. I need both parts of the string returned.
I need to split the string after the last alpha character and create a string array from the 2 seperate results.
The string will always varry, but there will always be at least 1 alpha char at the beginning of the string. Here are some examples:
AB1/2
Should return as "AB" and "1/2"
ABC1 1/4
[Code]....
How To Validate Numeric / Alphanumeric / Currency And 4-digit Number In Textboxes
Apr 10, 2009Can someone tell me how to validate numeric, alphanumeric, currency, and 4-digit number in textboxes ?
View 2 RepliesHow To Make Five Digit And Three Character String
Jun 8, 2011I am trying to make a five digit string, it needs to be 5 digits long basically it cant be less then 10000 and more then 99999, but when I run the code, all the label says is "this is a five digit code" from the time I start putting in numbers to even if I got a whole lot of numbers are in it, it remands the same label, what could be wrong or am I doing this wrong
Dim myDouble As String
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
If myDouble >= 10000 Or myDouble <= 99999 Then
lblmessage.Text = "this is a five digit code"
Else
lblmessage.Text = "Not a 5 digit code, please renter a new one"
End If
End Sub
For the three character sting, I have
ON:Motor is online and running
OFF:Motor is online, but not running
MNT:Motor is undergoing maintenance and cleaning
NA:Motor is not available
I dont know how to start this, do I make a specific thing saying that these are the only ones you can use and if you entered something else then a text box saying incorrect or something like that?
5-digit Credit Card Number With Fifth Digit As Check Digit
Apr 6, 2010I just finished this application where you enter a five-digit credit card number, with the fifth digit being the check digit. everything seems to work except, I can't seem to get it to determine that any number is "valid". Every 5-digit combination that I enter returns "The credit card number is not valid". Im using visual basic 2008 express
[Code]....
Get The App To Accept Numeric And Operator Input While Ignoring All The Alpha Input?
May 10, 2010I am writing a calculator app in VB Express 2008. I'm trying to get the app to accept numeric and operator input while ignoring all the alpha input. In other words taking input from the numeric keypad and the top of the keyboard and ignoring all the letters.
Here's the block of code I have so far:
Private Sub TextBox1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
If (e.KeyCode >= Keys.D0 OrElse e.KeyCode >= Keys.NumPad0) And (e.KeyCode <= Keys.D9 OrElse e.KeyCode <= Keys.NumPad9) Then
Select Case e.KeyCode
[code]....
I can't get vb to recognize the above code it seems to skip right over it. BTW, is 'Keys.Crsel' the same as the caret '^' symbol?
Asp.net - Generate And 7-digit Random Number/special Character String ?
Dec 1, 2010How can I generate a 7-digit random number and special character string in a textbox on a button click event, in VB.Net?
View 2 RepliesVS 2008 - Checking If A Textbox Is Numeric And 4 Numbers?
Sep 8, 2009best way to check if a textbox has only 4 numbers and isNumeric, for example i need to enter postcodes.I currently have:
If CDbl(txtPostcode.Text) <> 4 Or Not IsNumeric(txtPostcode) Then
MessageBox.Show("Postcode must be 4 Digits", "Error")
But the message box comes up regardless of whether there is 4 numbers, letters, or anything in the textbox. Its also used in the leave function of the textbox.
VS 2008 - Textbox Validation For Numeric And Length (7 Characters)
Oct 20, 2009I 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 RepliesVS 2008 Validates The Numeric And Decimal Input For A Textbox
Jun 3, 2010I found a function that validates the numberic and decimal input for a textbox and works exactly like I want. But it does not let me limit how many numbers after the decimal. how to do this in the same function?
[Code]...
VS 2008 THe JuMpIN CuRsOr - Make Cursor To Jump To The Next Textbox After Type The Digit
Jan 14, 2010how can i make my cursor to jump to the next textbox after i type the digit
View 3 RepliesVS 2008 Read Character From Textbox?
Nov 17, 2011how to read first character from textbox
View 3 RepliesWrite A Program That Validates An Inputted Ten Digit ISBN Number Using The Check-digit?
Sep 16, 2011I'm supposed to write a program that validates an inputted ten digit ISBN number using the check-digit at the end to ensure that the sum is a multiple of eleven. Before calculating this and detecting if the entered number is indeed a valid ISBN, we're required to check the first nine digits and see if they are indeed integers. After this the tenth digit is checked to see if it is "X" (for ten) or 0-9.
With the code I've written it keeps returning false for whether or not the ISBN is valid, even with valid numbers. I feel like its something to do with the hyphens; have I misused the replace function?I'm a little lost on how to make my code work, but I'm fairly certain my logic is okay so far.
[Code]...
.net - Know If PNG Has An Alpha (or If The Alpha Is Completely White)?
Jan 13, 2010I have PNG and need to know if it has an alpha (or if the alpha is completely white)? How can I accomplish this in vb.net code.
View 1 RepliesForms :: Numeric UpDown For Loop?
May 6, 2010how would i ggo about coding this
For i = 0 To maxrows - 1
For h = 1 To maxrows
Me.Controls.Item("TextBox" & h).Text = ds.Tables("TestCriteria").Rows(i).Item(0) Me.Controls.Item("NumericUpDown" & h).Value = ds.Tables("TestCriteria").Rows(i).Item(1)
[code]....
How To Verify IP Address From Textbox
Apr 11, 2010How would you verify if an IP address resolves to a computer name correctly from a textbox?
View 6 RepliesMultiple TextBox Verify?
Mar 31, 2010There is a situation that I couldnt handle, I have 4 TextBox's and I am assigning the text to variable after loosing focus for 4 TextBox's as below;
(Variables assigned under class Form1)
Private Sub TextBox1_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.LostFocus
[code]....
.net - Focusing Textbox In The Rightmost Digit?
May 14, 2009how do i code this in vb.net: focus the textbox and get the cursor to the rightmost digit?
View 1 RepliesAllow Only 2 Digit After Decimal Point In TextBox?
Sep 18, 2009validation for , allow only 2 digit after decimal point in TextBox in vb.net eg 150.25
View 3 Replies