Work Out What Characters Are Allowed In A Field With A VAM:RegexValidator?
Jan 11, 2012
I am investigating an issue with regards to a textbox rejecting user input. In this case the error message is: 'The note was found to contain a possible credit card PAN.'Now obviously this is a custom validator but I am enable to find where it tells me what characters ARE allowed? In debug I entered a note containing no numbers and when the validators are initialized, these variables have the value below:
valNoteContainsPAN.Expression = Me.PANRegEx value = (d*)45367{13,15}(?!d)
I'm assuming this is blocking numbers of certain lengths? How can I find out how to actually read and understand the above? Google is proving fruitless
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Apr 15, 2010
How can I check for characters not allowed for file creation programmatically? you know like the / <> and so.
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Aug 16, 2010
I am working on a site where I use the Split function on a string. To make sure I used a separator character that I do not use anywhere in the data I selected the character'£'. This worked fine in Firefox and Safari, but in IE8 I get an 'Index out of range' error, so apparently the '£' character is not handled correctly.
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Feb 23, 2011
Possibly a simple question, but I want to be able to "do nothing" if a value in a text box is less then 3 characters[code]...
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Apr 1, 2010
How can I Count the Characters in a DataTabel Field before that Field is DataBound to any TextBox. I thought of using a Variabel, something like this:
Dim Var As String = DataBindings.Add("text", HoofGeregteBindingSource, "Ing1")
If Var.Text.Length > 36 Then
. . . . . . . .
End If
I'am Sure I don't have to tell you guys, it does not work.
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Jun 6, 2011
I have made a report in crystal reports 10 in that i want the field only displays data without the special characters like its showing 11-00-3200-002-37 but i want it would show the field like this 1100320000237 without (-). so does any one help me to do this in crystal reports 10 not in application or software code.
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Apr 1, 2010
How 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.
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Nov 2, 2011
I have a database that I would like to filter characters from anywhere in the field. Example the letter A is typed into textbox1 and in the grid every field that contains an A is show. Like dash, lap, trap, apple. Currently with the query I'm using it will just go from the beginning of the field. I get "Index was outside the bounds of the array". The code is as followed:
Dim filter1() As String
filter1 = TextBox2.Text.Split(" ")
Sheet1BindingSource.Filter = "Stationary_location like '" & filter1(0) & "' Stationary_location like '" & filter1(1) & "'"
VB 2008 using access database.
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Dec 29, 2009
If TextBox1.Text.Length < 9 Then it have 1 charakter and it work i need that when the text is more then 9 charakters then it work.
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Jul 13, 2009
I have a multiline textbox from which I create a single string[code]...
What I'd like to do is write this to a DB as-is by adding wholeThing as a parameter using to SqlCommand.Parameters.AddWithValue, but all of my painstakingly-inserted newlines go away (or appear to).
I saw this and was hoping I didn't need to concern myself with CHAR(nnn) SQL stuff.
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Dec 22, 2009
I have 35.000 lines I want to add to a combobox, but this is too much... so I thought maybe there is a way to let the users type the first letter, and then show all the possibilities with that first letter. [URL]..Here I already found some information, but I can't get it to work.
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May 14, 2010
I'm using the following to populate a listbox from a sql server:[code]Is Available returns true (It's a bit in sql) or false - Is it possible to replace this with something shorter, say a checkbox or tick image?Also, is it possible to only display actual data rather than the whole field including empty characters? I have a few nchar(30) fields, the above seems to include all 30 character spaces.
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Nov 20, 2009
I am not recieving any errors, but the program is not doing what I had expected. I wish to make a program that randomly takes characters (well, not completely randomly. I used the table of letter frequency from wikipedia and included that data in my program by figuring out the max for the random numbers from the percentages in the wikipedia chart.) and adds them to a long list of characters ands saves the file every 5 minutes. I have calculated the timer interval so that the number of miliseconds shown is equal to 5 minutes. I am getting the textwindow, and it is showing (rather rapidly, as I need it to be) a long random list of characters (including spaces). The problems are (A) I am having difficulty saving the text as a file. You'll find the code that is supposed to do that at the bottom. The other problem I am having is once so many characters are added, the ones at the top start disappearing. I would scroll to the top, and each time I did so the letters at the top had changed (this is all during the same test), but I need all characters to be stored when the file saves. Granted, I haven't actually seen one of the saved files as I have not figured out how to make that work. One other thing, not sure if it's important, I haven't run a published version yet. I've only been running the debug builds. Does that affect how it handles actions with files?
Module RandomModule
Dim X, Y, contents As Primitive
Sub Main()[code].......
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Dec 19, 2010
I am a complete beginner with Visual Basic, I am attempting to continue where the original creator left off. His project is finished but he didnt (and still doesnt) have time to fix a couple of bugs with his code....Basically, he has written a small VB application that closes SWF flash files if the CRC matches from a list... So when an SWF is loaded into explorer the SWF is hash checked and then closed if it matches from the "hashcheck.txt" file.
All is working apart from 2 small bugs:
1) %^&{}[]#`� - dont work.Ive found that If there is any of these charactors in the folder or filename structure the file doesnt get checked/closed.
2) Network paths do not work.. (maybe is part of above bug?)
N: est_folder estfile.swf <-- works perfectly
\pcshare est_folder estfile.swf <-- doesnt work
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Apr 6, 2009
I have a database and I wanna select a field ..I usually do this with access:
dim chosen as string
chosen = textbox1.text
Dim querysql = "select * from table where field = " & chosen & ""
But with SQL it doesnt work =S I really need to make this work .
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Oct 1, 2009
I'm trying to query LDAP using a field that contain's 's in VBScript, but I can't get it to work. Here is my code (basically). What am I doing wrong?objCommand.CommandText = _
"SELECT cn FROM 'LDAP://" & x & "' WHERE extensionAttribute1 = '1500 0FFEA14C439' "This string will never match any record even if use wild cards or copy in the exact data from the AD record.
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Jan 19, 2012
how to get this login to work if i add a field in to my database called UserTypes "Admin" "Normal" if they are admin if will display cmdAdmin and if they are Normal if will hide cmdAdmin this is the code i have currently?.[code]
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Mar 25, 2009
For a school program, I was assigned to use a .dat file to store and edit information while using VB to be it's front end( to appear in a listbox). I was also given what field length to use per field. I never worked with .dat files, so I have a few questions (all the google-ing Ive done say the same thing: every .dat file is different so you can't play around with them):
[Code]...
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Dec 21, 2011
Essentially I am trying to replicate the Windows 7 (In-Windows) activation key TextBox form. The Form where it will auto capitalize letters, remove or deny all non alphanumeric characters except dashes every 5 characters that will be auto-input.I assume this can be done with a fairly complicated replacement Regular Expression but I cannot seem to create one to fit the needs.
This is an Example of what I have right now, but it creates an infinite loop as it removes all characters including dashes, than adds a dash, which changes the text and removes the dash again.
[Code]...
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Sep 13, 2010
i have been trying to remove special characters. i am not able to remove many crlf in middile of the string.
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Aug 3, 2009
I need to create a console program that allows you to enter a string, of which is then outputted in reverse.
Sample:
Input: Diewas
Output: saweiD
Apparently I need to find out about strings and will also need to use a loop.
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Feb 23, 2011
Not sure if too many people know this, but the following line will cause an error:
GroupName.Substring(0, 3) = "jt_"
....if the length of GroupName is less than 3 characters. I always thought it would simply return whatever characters in GroupName, but no, it errors. I must be thinking of the old VB6 days.So, I now have to change the code to:
If (GroupName.Length > 2) Then
If (GroupName.Substring(0, 3) = "jt_") Then
Note that the two comparisons need to be on separate lines. If they are on the same line, such as:
If (GroupName.Length > 2) and (GroupName.Substring(0, 3) = "jt_") Then then the code will still fail as the length command is executed at the same time as the substring command- which will cause the error when the GroupName length is less than 3.Just thought that those of us not aware of this should be!
dp.SyntaxHighlighter.ClipboardSwf = '/dp.SyntaxHighlighter/Scripts/clipboard.swf'
dp.SyntaxHighlighter.HighlightAll('9844f9bfb55449e6a786fa62aaadfa20')
dp.SyntaxHighlighter.HighlightAll('f6d554fd98464bdba9159b319e51b381')
dp.SyntaxHighlighter.HighlightAll('93bf4ca63ad8447abdf084d8a9991e15')
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Aug 5, 2011
I have two textboxes. I type in one of them and the text gets copied in real time into another textbox. There is one catch. I need to replace specific character with something else.
If I enter a quote " in textbox1, it has to be replaced with " in textbox2.
I started with something like the below code, but obviously this does not work (tried different stuff - this is for demonstration only). In the example below 'a' represents " , and 'b' represents "
Private Sub TextBox1_KeyUp(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.KeyUp
TextBox2.Text = TextBox1.Text
[Code]....
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May 9, 2011
With the shape of really large characters such as numbers and alphabetic characters + others, is there a way to get that shape as a REGION please?Imagine a really fat snake forming the letter S or two rectangles placed together to form a large letter L or a T like the shapes in TETRIS.
1) Does anyone know of anything in VB.Net that can translate such shapes into a System. Drawing.Region or know of a project elsewhere that achieves this please?
2) While I'm on the subject, how would you SCALE UP / DOWN a System.Drawing.Region please? How would you work out the Transform Matrix required please?
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Aug 27, 2011
I'm making an application that will change position of two characters in Word.
[Code]...
Program works good, it is mixing characters good, but it doesn't write text to the file. It will write text in console, but not in file. Note: Program is working only with words that are divisible by 2, but it's not a problem. Also, it does not return any error message.
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Feb 20, 2011
I'm making a custom control suited for handling passwords. I have created a control that inherits from a text box and I have implemented a lot of things so far. But what i want to do now is create a system so that when a user types It will display his last character typed for a X amount of time. Is there a way to turn only selected characters into password characters and still be able to get the password text from the Text property ?
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Apr 2, 2012
I have a problem when trying to send a POST request. The sending method looks like this:
Public Sub SendXML(ByVal file As String)
Dim reader As New StreamReader(file)
Dim data As String = reader.ReadToEnd()
[Code]....
Now looking at this I suspected that it was due to the fact that the server does not accept POST messages. But some other reading suggests that the the URI [URL] has been generated with a proxy and should be /Request so the line should read POST /Request HTTP/1.1
So what would be the common reason for this? And if it is a proxy problem, how is it sorted?
As asked below, I have created a new question for the more specific request. Changing absolute URI to relative in HTTP POST header
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Mar 27, 2009
I know that you cannot specify a constructor in an interface in .Net, but why can we not?
It would be really useful for my current project to be able to specify that an 'engine' must be passed in with the constructor, but as I cant, I have to suffice with an XML comment on the class.
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Nov 2, 2009
are nested functions allowed in visual basic?
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Oct 8, 2011
i am currently having two problems with this assignment. The program allows the user to add new students to a listbox with a unique Id, lastname and test average. When adding a new student to the listbox, part of the assignment is to not have duplicate students added. I am currently stuck at trying to figure that out. I have figured out how not to have duplicate courses under the course information form but when trying similar code for adding a student i cant get anything i try to work. the next problem is when searching for a student from the list and clicking on the Course Information button, the course information added for that student needs to be displayed. My problem is getting the student searched information to show up right, but if i add three students and search for the first one i added and click on course information button it only shows the last student i added. this is my code for the whole program
Public Class Form1
Private allStudent As New List(Of Student)
Private currStudent As Student
[Code].....
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