Regex - How To Field Validate In VB
Apr 10, 2011Say i'm creating an email list. How would I validate the field to not accept text without the '@' sign?
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Validate A Password By Using A Regex?
Dec 12, 2010I am trying to validate a password by using a regex.
* Must be between 6 to 16 characters long
* Must contain atleast 1 uppercase letter
* Must contain atleast 1 lowercase letter
* Must contain atleast 1 numeric "digit"
So far so good ...
(?!^[0-9]*$)(?!^[a-zA-Z]*$)^([a-zA-Z0-9]{6,16})$
Can optionally have any number of special characters listed below.
Validate Url And IP Address With RegEx?
Nov 25, 2010I'm having some problems with validating Urls and IP addresses with RegEx.
This regular expression doesn't work properly. For example, it returns True for "www.123.123.123.123" and "http://www.123.123.123.123".
vb.net
Regex.IsMatch(txtTextBox.Text, "(((http|https)://)|(www.))+(([a-zA-Z0-9._-]+.[a-zA-Z]{2,6})|([0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}))")
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RegEx - How To Validate Decimal With Optional Percentage Symbol
May 12, 2012As the title of the question, I need to validate regex using the following values:
(Maximum 2 decimal places, and 9 integers) with an optional percent symbol.
Valid:
10%
0%
1111111.12%
15.2%
10
2.3
Invalid:
.%
12.%
.02%
%
123456789123.123
I tried:
^[0-9]{0,9}([.][0-9]{0,2})d[\%]{0,1}?$
But It does not work as I want.
VS 2008 - Using RegEx String To Validate Email Address?
Feb 11, 2010I am using this regex string in one of my programs to validate email adresses: "^[a-z0-9._%+-]+@[a-z0-9.-]+.[a-z]{2,4}$". This works well for the most part, but I just found out that it doesn't catch an address like this ... "john.doe.@yahoo.com" ... where there's a "." right before the "@", which is invalid, so my program tries to send it & throws an exception. How to modify my regex string to catch this situation?
View 4 RepliesWay To Validate Password Field
Apr 6, 2011I am working on a registration form and it requires to put in password that's atleast 6 characters long but shouldn't be more than 15. And contains atleast one number.
How do I write code to check if the user have met the requirements or not?
Validate A Field Which Contain Both Characters And Numbers?
Apr 1, 2010How do i validate a field which contain both characters and numbers? For example, I have a field call Item ID and it must be in the form of ABC123 where ABC is the fix characters that will appear in all the Item ID and 123 is the one that will change accordingly.
View 2 RepliesVS2008 - Force Default Value In Text Field/validate Data Is Numeric?
May 11, 2009Dense student here with little sleep here during finals week...I have a text field being read on a button click event (along with lots of other information being read). This field needs to have a number entered.
I either:
1) Force a default value (i.e. - "2")
2) Verify there's something in the field AND that something is numeric...
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" />
Validate Html.editorfor - Validate The User Data Entered
Apr 26, 2012I'm trying to figure out a way to validate the user data entered:
[Code]...
This is in MVC3, VB.net. I'm looking for an easy way to validate a users input data into the editorfor field.
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?
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>..
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 RepliesCheck If A Field In A Data Table Is Null Before Creating A Textbox Bound To That Field?
Feb 24, 2010I am building a data based application using VB 2008 an SQL Express. I need to create textboxes on my form using code, (With & End With) method. I need a simple code string that will allow the app to check if the field to wich the textbox wil be databound is Nul, If so the textbox will not be created.
View 8 RepliesMake Gridview Checkbox Field Update Boolean Field In Database?
Feb 7, 2011There are lots of questions about this but I've not been able to solve my problem using the answers to any of them (after many, many attempts..)
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page.
I want to change the DoNotMail boolean value represented by a Gridview checkbox and automatically update in the database if the checkbox is checked from 0 (False, Will Mail) to 1 (True, Won't Mail) here is the code I used. [code]...
is it possible to do a two way sync on the entire gridview when the user hits a button so you don't have to do an update every time a row is changed? because the user might check the box and then check another box then uncheck a box and it would be a lot of updates...
Make Database Field A DateTime Field Currently Is Set To String?
Oct 5, 2010Dim query as String = "Select * from openquery (devbook, 'SELECT wb.arrival_time FROM web_bookings wb ')"All I need is to convert my arrival_time into a datetime field in the query
View 1 RepliesRename Field Headings And Change The Field Type?
Jun 28, 2010I am trying to edit a dbf table. I would like to be able to rename field headings and change the field type, ie string or dbl, and the size of the field. is this possible to do with vb.net. I have connected to the dbf file but after that am lost on what to do.
View 3 RepliesSetting A Field Value When The Field Is Anonymous?
May 1, 2009I need to set a field that i have dumped into a dictionary to a value that is always a string, (well, it came from an xmlElement, so the .value is a string)
Function setMembers(ByRef ClssObj As Object, ByRef nLinkObj as Object, ByRef xml As XElement) as integer
Dim fields As New Dictionary(Of String, FieldInfo)
[code].....
.net - Validate WCF Service
Jul 15, 2011I'd like to write a license management based on a wcf services.
How can I ensure that the (end)-user/"hacker" can not replace our license management services with a corrupt server?
Our license server is hosted on our server in the internet. When the server send corrupt data to the client the complete license management concept is destroyed.
Asp MVC Partial Does Not Validate?
Apr 4, 2011Scenario :
Viewmodel dienstViewModel contains a AdresViewModel
Public Class AdresViewModel
<Required(ErrorMessage:="Gelieve een straatnaam op te geven")>
<DisplayName("Straat:")>
[Code].....
Asp.net - Validate Div Tag Separately?
Apr 9, 2010i have 3 div tags.Each having no. of textboxs and button.Each textbox having validation.For all button causesvalidation property is true.If i click "button1" in "div1" tag will cause validation of other textbox in other div tags.I dont want to do this ? How to avoid this?
View 2 RepliesHow To Validate For Textbox
Apr 12, 2012Ok.. i'm trying to validate a textbox, and i think i got the code pinned down, however,after it is validated.. how do i loop so it lets you input the data in again after you have entered incorrect data
Do
NameNew = txtName.Text
If txtName.Text > 100 Then MsgBox("too high")
[code].....
How To Validate Textbox
May 1, 2009how i validate the textbox textbox only get integer value and after that this integer value assign to a integer variable.
View 12 RepliesHow To Validate Textbox In Wpf
Mar 24, 2010I want to write 123.32 i have implement validation but it does not include "."
how to include it
If (e.Key > Key.D0 And e.Key < Key.D9) Or _
(e.Key > Key.NumPad0 And e.Key < Key.NumPad9) _
Or e.Key = Key.Back Or e.Key = Key.Tab _
Or e.Key = Key.Decimal
[Code]...
How To Validate Textbox Value
Jan 15, 2012how to validate the text box value? I have one class with function for validating the duplicate value of sql table.
[Code]...
Validate A Textbox In .net?
Apr 10, 2010How could i validate a textbox in vb.net, so that it gives error message if i enter anything apart from alphabets?
View 3 RepliesValidate A Value As An Integer?
Feb 3, 2009how to validate a value as an integer, heres my code:
dim myInt as integer
dim this as boolean
if myInt is integer then
[Code]....
I dont know what to put in the 1st if line, ive seen some val(myInt) stuff, and tryparse integer but not sure how to get it to work
Validate An Url With Parameters?
Oct 2, 2011I'm trying to determine whether or not a given string is a valid url or not.[code]...
View 1 RepliesValidate An Xml Against A Schema
Apr 21, 2010I have written a small XML validator, that takes in an XML file and an XML schema and validates the XML files against that schema. It works well, except for an XML file, with this content:
[Code]...