KeyCode - How To Do Validation With RegEx
Mar 28, 2012How I can make this condition en VB.NET
If e.KeyCode = [a-zA-Z0-9] Then
End if
I have understood that the Keycode are numbers but as I can do this validation with regex?
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Email Validation With Regex?
Apr 17, 2012I've tried implementing a rather simple email validation function that seems return a false match even though the input is a valid email. I have searched for any issues with the existing regex but it seems to be correct.Even though the match returns a false value the program is stepping to the next validation level (which it shouldn't).Here is the email validation function.
Function EmailAddressChecker(ByVal emailAddress As String) As Boolean
Dim regExPattern As String = "^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}$"
Dim emailAddressMatch As Match = Regex.Match(emailAddress, regExPattern)
[code].....
Email Address Validation With RegEx?
Mar 7, 2012I have been using a function to validate email addresses for awhile now. Yesterday i discovered that the code indicates that 2 different email addresses are invalid when in reality they are perfectly fine.
The code uses RegEx to determine if an email address is valid. I have tried to understand RegEx, but I can never seem to figure it out. Here is the
Private Sub btnCheckEmail_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCheckEmail.Click
If ValidateEmailAddress(txtEmail.Text) = True Then
[Code]....
How can the RegEx be re-written to allow the local part (before the @ symbol) to be 1 character, and/or be a number? I understand the "a-z" part, but i don't understand what [w.-] means, or why the a-z is duplicated before the @ symbol.
Regex - Asp.net Validation When Field Is Not Required?
Dec 18, 2010I need to set validation on a textbox where the user types in their email address... This is not a required field though so I want to allow the form to be submitted if the textbox contains the default text ("Email address").I've posted the code i have already to ensure a valid email address is typed.
<asp:RegularExpressionValidator CssClass="errorpopup" Display="Dynamic" ID="regexpEmail"
ValidationGroup="mySubmit" runat="server" ErrorMessage="<strong>Please enter a valid email address.</strong>"
ControlToValidate="tbEmail" ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*"
SetFocusOnError="true" />
Regex Email Address Validation Fails If Underscore Character Present
Aug 31, 2010My Regex works, except if the email address entered has an underscore character (_) in it.
Because of my lack of experience with regular expressions, I'm not sure where in my pattern I'm supposed to add the offending character to allow it:
Dim pattern As String = "^[-a-zAZ0-9][-.a-zA-Z0-9]*@[-.a-zA-Z0-0]+(.[-.a-zA-Z0-0+)*." & _
"(com|edu|info|gov|int|mil|net|org|biz|name|museum|coop|aero|pro|tv|[a-zA-Z]{2})$"
He said he fixed it by adding the _ after the numeric check.
I see the A-Z0-9, but I'm not sure which is the numeric check...
Concatenating A Variable With A Regex Group Match In Regex.replace?
Apr 5, 2012I am having an issue where I am using regex.Replace to replace part of a string. The basic idea is that I want to capture the beginning of the string then replace the end of the string with a value from code. For an example pretend I have a string that says "Test Number " followed by number and I want to increment that number. I capture the "Test Number " but when I try to concatenate that capture with the new number it treats the capture ($1) as a literal and replaces the entire string with $1[new number].
[code]...
This will output "We are on Test Number 2", as expected. how I can use a variable in the replacement string portion of the Regex.Replace when including a captured group?
What Is The Equivalent Of KeyCode
Mar 2, 2009what is the equivalent of KeyCode in vb.net?
If KeyCode = System.Windows.Forms.Keys.Return Then
Regex: Take Text & Some Special Characters Between The Xml Tags Using Regex On C#.net?
Feb 23, 2012I want to take the text and some special characters between the xml tags.. My input file contains:
[Code]...
now i want the Regex to take text and the special characters between the tags <line>,<inline>..
E.KeyCode Does Not Work When Pressed
Mar 15, 2012so here is the code
If e.KeyCode = Keys.F1 Then
DefaultSettingsToolStripMenuItem_Click(Me, EventArgs.Empty)
ElseIf e.KeyCode = Keys.F2 Then
[Code]....
The problem is that when you press F1 - F4 or F9 nothing happens, am i using this code wrong? I have the code under the Form1_KeyUp section of the code.
E.KeyCode Not Working Properly?
Jul 4, 2011So I opened 2 forms, Form2.vb and Form3.vbNow I put this:
Private Sub Form1_PreviewKeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.PreviewKeyDownEventArgs) Handles Me.PreviewKeyDown
If e.KeyCode = Keys.F8 Then
[code].....
Get Character As String From Keycode?
Aug 13, 2011I have a text box but all I want to be able to be inserted is numbers [code]...
View 7 RepliesProperty Keycode Is Non-nullable?
Apr 7, 2009I am creating a setup project for my VB application. Everything seems to look fine. However when I tell it to build the solution I get the following error:Property 'keycode' is non-nullable. I have never seen this before in other setup projects and I can't find any help from MS.
View 8 RepliesVS 2008 : What Keycode Is The Dot(decimal)
Aug 19, 2009what keycode is the dot(decimal) ? i found Keys.Decimal but thats the one on the numpad, what is the one near the question mark on ur keyboard?
View 6 RepliesVS 2010 Get Key Name From KeyEventArgs.KeyCode
Aug 1, 2011Is there any built in way to get the key name from the decimal alt codes returned by KeyEventArgs.KeyCode? e.g. get "Space" from 32 If not I guess I'll have to create a huge array.
View 5 RepliesWhat Is The C# Equivalent Of ChrW(e.KeyCode)
May 19, 2011In VB.NET 2008, I used the following statement: MyKeyChr = ChrW(e.KeyCode)Now I want to convert the above statement into C#.
View 4 RepliesConvert A Char To A Virtual KeyCode?
Apr 23, 2011I'm making a function that sends a string to a Handle using sendmessage , and I need to convert a Char to a virtual KeyCode. Asc and AscW returns ASCII code's which don't work.
View 2 RepliesIDE - Difference Between Keycode, Keycharacter, Keydata
Jan 1, 2010what is a difference between keycode, keycharacter, keydata, keyvalue and in what perspective they are used.
View 2 RepliesVS 2008 - Why KeyCode Tab Keys Not Working
May 3, 2009I wrote this:
Private Sub TextBox2_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox2.KeyDown
If e.KeyCode = Keys.Tab Then
MsgBox("Tab")
End If
End Sub
Why it doesn't work when I press tab on my keyboard?
VS 2008 E.KeyCode While Form Is Minimized
Aug 12, 2011I want to use e.KeyCode while form is minimized, I'm working on a screenshot-taker if you know what I mean. So Form1 is minimized > User presses F9 (Let's say the key is F9) > An event happens.
View 4 RepliesVS 2008 Global Keycode For The Windows Key?
Jun 25, 2009Does anyone know the global keycode for the windows key? I know that alt =1, control =2, and shift = 4. Also if you know the answer can you tell me where I can find the global keycodes?
View 2 RepliesVS 2008 KeyCode For Multiple Buttons
Jul 26, 2010I'm just trying to learn alot of the tricks and such so I'm making small programs and games to just get the swing of things.I'm having abit of trouble with this one, currently. I'm tying to create a form with two buttons. Now, I want to be able to press two keys on the keyboard and have one of the two buttons activate So, instead of clicking Button1, I pressed Control + C and it will say "Comment" and instead of clicking Button2, I press Control + U and it will say "Uncomment".
Public Class Form1
[code]...
The problem I keep running into is that the only way for the buttons to actually work is if they are already selected (Or, the last one clicked will work but the other will not). Then the keycode will work for them. How do I make this work without having to click on the button prior.
VS 2010 - Using KeyDown And E.KeyCode For Hotkeys
Jul 27, 2011I'm working on a project that contains hotkeys, but I don't wish to have global hotkeys. At the moment, I'm using KeyDown and e.KeyCode for hotkeys. I've created test projects where these worked perfectly fine, but on my main project, they don't register.
CODE:
VS 2010 E.KeyCode - Determining Which Was Pressed
Nov 10, 2011I'm trying to determine when the 'Left' and 'Right' keys are pressed, for keys that have a counter part. Like, Shift, Alt and Control. But it doesn't seem like any the counter parts have a unique KeyCode or KeyData. If I press the right or the left keys, I get the same KeyCode each time:
[Code]....
Increment Regex Match Using Regex.Replace
Jun 21, 2012I'm creating a program in VB.NET to output multiple images. Some images will have the same file name. If there is multiple files with the same name I want to add "_1_" to the end of the file name. If the "_1_" file already exists I want to increment the 1 to be "_2_". If this file already exists I want to continue incrementing the number ultil it doesn't exist. So for example "filename", filename_1_", "filename_2_", etc. Here is the code that I have tried
[Code]...
Regex Builder That Actually BUILDS RegEx From A Highlight
Nov 17, 2011I've been working straight since yesterday trying to get this to work. I'm a noob to RegEx and I've tested out about 5 different RegEx "builders" but each of them require you to navigate through the options to build the Regex...each of them has failed when I try to use them.Is there an application out there free/paid where you select the line you want to grab and the RegEx is auto generated from that highlight rather than having to try to build the line of code? [code]
View 1 RepliesBuild Error - Property Keycode Is Non Nullable
Jul 4, 2005I tried to build my project but it has 1 build error
:Property 'Keycode' is non-nullable.
I double click it but it points nowhere. I'm really desperate. My project consists of Crystal Report. It had just been upgraded from version 8.5 to version 11. Is it possible that this is the source of error?
KeyUp 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?
VS 2008 Bug With E.Keycode On KeyUp Event Handler
Dec 31, 2009I have this code
If e.KeyCode = Keys.D0 Or e.KeyCode = Keys.D1 Or e.KeyCode = Keys.D2 Or e.KeyCode = Keys.D3 Or e.KeyCode = Keys.D4 Or e.KeyCode = Keys.D5 Or e.KeyCode = Keys.D6 Or e.KeyCode = Keys.D7 Or e.KeyCode = Keys.D8 Or e.KeyCode = Keys.D9 Or e.KeyCode = Keys.Oemplus Then
[Code]....
The output WILL be 189 when I press the - sign. But when I check "Keys.OemMinus" it stands for 189 and when I replace "Keys.OemMinus" with 189 it won't work either!
I checked the Resources file and it's correct. The picture just doesnt change, only shows the last pressed button...
Keyboard Up / Down Event - Error: KeyCode Is An Integer Not Byte
Jan 30, 2010Private Declare Sub Keyboard_Event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long) [Code] I know the KeyCode when i call this function. Example 13 is the keycode for "Enter". But it says that theres an error on syntax cause KeyCode is an integer not Byte. What kind of variable does it need there? I mean does it need the keycode (which is a number) or a character e.g. "a"? [Code]
View 2 RepliesC# - Convert System.Windows.Forms.Shortcut Into KeyData / KeyCode?
Nov 15, 2011Is there an easy way to get the corresponding keydata (keycode combination) for some value in that enum? I cannot find one, and creating a switch statement for all those is a bit overkill...The integer values of the enum elements are not keycodes, but some 'unknown' big numbers, so simply casting to int won't work.
View 1 Replies