Allow Only Character (a-z) And Number(0-9) Only In Textbox?
Mar 23, 2010Currently i try this code but[code]...
but i want to allow only a-z character and 0-9 number. not allow any symbol
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One Set A Maximum On Number Of Character A Textbox Can Use?
May 14, 2011My issue is that some websites only allow say 15 characters maximum to be used to create a user name where other sites do not. Currently I have one text box on the screen and a button, and a web browser that navigates to two sites.Site #1 has a cap of 15 characters max to create a user nameSite #2 doesn't have any maximum amount of characters to use.I am wanting to know how I can enter lets say a 20 character username into the text box and have the code set a max of 15 characters for site one and nothing for site 2. I was thinking that this could be done when passing the information from the text box to the text box on the screen with something like
Textbox1.Text.value.length= maximum 15
Site #2:
Textbox1.Text
[code].....
How To Check The Text In A Textbox, Character By Character
May 9, 2010My form has a texbox where user enters an ID. IDmust be4 chracters in length andof the form: begins with either "E" or "e" and the next 3 chracters cannot be "all characters".
Example:
E102 - corect
e3ff - correct
[code].....
Asp.net - Find Out If The First Character Of A String Is A Number ?
Aug 25, 2009How do I check to see if the first character of a string is a number in VB.NET? I know that the Java way of doing it is:
char c = string.charAt(0);
isDigit = (c >= '0' && c <= '9');
Count Number Of Certain Character In A Column?
Jun 21, 2010I'm using vb.net and a DGV to open a access DB. On load im filtering out everything except what was created on the current date. [code]...
View 1 RepliesCounting The Number Of A Given Character In Datagrid?
May 27, 2010i have a datagridview linked to a access DB that right now looks in the 5th column and counts the number of "c","o" (completed and open) but it gets the count from the entire data base. I am able to filter the ones for a certain day and view them on the grid but how to count the number of occurrences that are visible and not the ones that have been filtered out?
View 3 RepliesGenerate ID With Extra Character / Number
Feb 29, 2012Assuming that I am going to add new record. I use this function to generate the ID for the new record.
Public Function GetMax(ByVal strTable As String, ByVal strField As String) As Integer
Dim cmd1 As New SqlCommand
Dim conn As New SqlConnection(gStrConnection)
Dim no As Integer
Dim str1 As String
[Code] .....
It returns 1. How can I modify this to make it 20120001 wherein the first 4 number (2012) will depends on the year today.
What Is The Equivalent To Vb6 String(number - Character)
Feb 16, 2009what is the vb.net equivalent to vb6 String(number,character?
View 3 Replies.net - Conversion From Number To Char Without Using Any Special Character
Oct 4, 2010i want to convert following number to character equivalent but without using any special character.
View 1 Replies.net - Count The Number Of Occurrences Of Each Character In A String?
May 31, 2011I'm scanning through all characters in a textbox. Then the program counts how many of each character is in the textbox. Here's the code which adds all characters to a list:
For each c as char in TxtBox
list.add(c)
Next
Everything's working fine, except this will also add returns to the list, which I don't want. I thought I could write like this:
If c <> chr(10) Then
list.add(c)
End If
Number Of Times A Character Appears In A String?
Nov 11, 2009How can I count the amount of times a character appears in a string?
The assignment is to create a program with 2 text boxes, label, and a button. We then need to type a phrase into the first text box, and a character in the second. Then click the button and then the label will display the output of how many times the character in the second text box appears in the first.
I have all the above setup except for how to display the amount of times the character appears in the first text box, here's a picture:
Replace The #1 In The Indexof Below So That It Searches For Any Number Character Instead?
May 1, 2011I have 10 lines of array that are first name space last name space zip code. All the zip codes start with different numbers. Is there a way to replace the #1 in the indexof below so that it searches for any number character instead?
'open file
inFile = IO.File.OpenText("Names.txt")
'process the loop instruct until end of file
intSubscript = 0
[code].....
Check For Character Number And Special Characters In A String?
Jan 21, 2011I want to user to enter only numbers and characters in textbox i.e no special charaters.I don't want to use key press event of textbox.As i need same validation in gridview.
So i want to validate whole string.
Count The Number Of Times When A User Enters A Character?
May 20, 2009count the number of times when a user enters a character followed by , and I want to count , number of times. So far here is what I have if you also know a little about the split function can you check to see if what I have is right?
Private Sub Strat0_LostFocus()
Dim q1 As New rdoQuery
Dim LO As Integer
[code]....
Counting The Number Of Times A Character Is Encountered In A String?
Feb 18, 2012I am trying to count the number of times a specific character is in a string. The problem is when I run the program the letter doesn't advance from "d" in the string "debugging" and doesn't display the number of time the character "g" is found.
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
Dim letterCount As Integer
[code].....
How To Limit Number Of Character That Need To Be Enter In Data Grid
Jul 15, 2009In my datagriedview i have 5 column called T,C,F,S and H.I want to specify in column C that the user must enter 3 digit. For column H the maximun value should be 2000 so user should not enter more than 2000.how i can specify this condition for my datagriedview column?
View 2 RepliesLimit Number Of Character In Unbound Datagriedview Column?
Jul 15, 2009In my datagriedview i have 5 column called T,C,F,S and H.
I want to specify in column C that the user must enter 3 digit. For column H the maximun value should be 2000 so user should not enter more than 2000.
how i can specify this condition for my datagriedview column?
For Barcode - Input A Item Number In Textbox And If That Number Will Match In Your Database
Mar 7, 2012I have a txtbox(for barcode).. if i input a item number in that txtbox and if that number will match in your database, the other information(shall we say, product type, item ID, etc..) will display in my other txtboxes..
View 5 RepliesPhone Number Or Landline Number Validation In Textbox Code?
Feb 11, 2012validation in vb.netemail_id validation,name,mobile number,Telephone number,zip_code,address i want to all code the textbox
View 3 RepliesAsp.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 RepliesSet A Default Number And You Type In A Textbox A Random Number?
Mar 15, 2012i want to set a default number and you type in a textbox a random number it should tell you whether it's high or low ,and when you typed in the right nmber it a lable should says something like you win .And also how can you change PART of a lable by typing in a text in a DIFFERENT FORM
View 6 RepliesUser Enters A Password - Must Be At Least 3 Characters Long - At Least 1 Number And 1 Alphabet Character
Mar 28, 2012My homework assignment is to create a project where a user enters a password that must be at least 3 characters long with at least 1 number and 1 alphabet character. After that the password has to be encrypted so that vowels become X, numbers Z, and it reverses. For example, a password of CS2301 would be ZZZZSC. There's supposed to be Loops to extract 1 number/letter at a time and search for them in the string to validate, and I don't know what to do. The form itself has a Text Box to enter a password and a label to display the new one, and a Go button.
This is what my code looks like so far.
Option Strict On
Option Explicit On
Public Class Form1
[CODE]...
Check If A Number In A TextBox Is An Even Or Uneven Number?
Mar 24, 2010Is there a way to check if a number in a TextBox is an even or uneven number?
View 8 RepliesGet Line Number And Column Number Of Textbox
Mar 2, 2012I'm doing a notepad project, just because, and in Ms's notepad there is an option for a statusstrip. I'm just having probems getting the line number and I know it's not called column number, more like selection start. When I do the selection start, it works, just not how I want it to like so:
[CODE...]
but when I use that, it acts funny. I have it in my textbox's.keydown event. So if I were to use the arrow keys to navigate around text then it gets thrown off very easily. How would I do this?
Multiply The Number In Textbox1 With The Number In Textbox 2?
Dec 13, 2010i am creating a currency calculator and need to multiply the number in textbox1 with the number in textbox 2 (exchange rate) i also have a £ or a $ depending on the currency selected.
View 9 RepliesCondition About The First Character In The Textbox?
Feb 21, 2011as the title says , for example i want to say if the first letter in textbox1 is "d" then do a specific command ,so what is the code for this ?
View 2 RepliesGetting Character Inside A Textbox?
Mar 30, 2012im trying to create a program that i have two text boxes,and a button,i type in text box 1 this strings
----- "."(dot) and some strings and another "."(d0t) and another strings------,
if i click the button, the strings inside the two dots will be in the text box 2,and the other remaining strings or character outside the two dots is,well lets say, not too important. how can i do this?
How To Put The Focus On The Last Character In The Textbox
May 30, 2012Private Sub txtOPass_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txtOPass.KeyUp
txtOPass.Text = Replace(txtOPass.Text, Mid(txtOPass.Text, Len(txtOPass.Text), 1), "*", 1, 1)
[code].....
How To Validate Character Within Textbox
Jul 6, 2009I am trying to validate the character within a textbox. The textbox has a MaxLenght of 1
Private Sub textbox1_TextChanged() Handles textbox1.TextChanged
If allowed_characters.Contains(textbox1.Text) = True Then
textbox2.Focus()
End If
If allowed_characters.Contains(textbox1.Text) = False Then
textbox_userid_input01.Clear()
End If
End Sub
When I enter something in textbox1 at the debug it will do the if contain = false
but the if contain = true doesn't work. I tried a lot, but it still doesn't recognize true.
Insert A New Character In A Textbox?
Aug 12, 2010we were asked to make a program that will accept a letter and how many times will it be shown. eg: letter: a, number: 5, output: aaaaahow can i do that? when i run my program, it only shows one 'a'. assuming i entered a.here's a piece of the program:
Dim counter% = 0
Do
stroutput += strletter
[code].....