Regex - .NET: Manipulating TextBox Input: Dash Every 5 Characters And Removing Special Characters?

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.



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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


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I need to define a regular expression that accepts Alphanumeric and the following special characters:

I've come up with:
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Nov 3, 2011

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field1 = elements(1)
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The field1 and field2 still have a trailing "&|" chracters.How do I check if the field1 and field2 have these trailing characters? How do I delete them?PS - I have tried "&\|:" as the delimiters in the split function which did not work.

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Jun 24, 2010

I have a field that the gets a case title. Requirments are to be able to use any of these special characters in any order in the title.

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I can't just take that string from the test box and put it into the sql statement. It will error.

I need to be able to 'escape' the special characters to play nice with sql server 2005

Public Shared Function Format(ByVal str As String) As String
'Format = Regex.Replace(str, """", """""")
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Heres my problem:

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Heres the code i used:


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Sep 12, 2009

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May 18, 2012

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This should be so simple to do but I can't figure it out.. I've tried String.Replace, text.trim, etc.

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Aug 28, 2010

I'm trying to insert a - after ever 5 chars. I made this code.
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End If
[Code] .....
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Aug 1, 2011

I need the code to filter the data entered in a textbox. Although it accepts all the characters during runtime, the code should remove all the strings and alpha numeric characters except the numbers (which would be my output). I tried the following code but guess it won't do:

a = Textbox1.text
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Aug 3, 2010

I've got a program that in a nutshell reads values from a SQL database and writes them to a tab-delimited text file.The issue is that some of the values in the database have special characters (TM, dash, ellipsis, etc.) When written to the text file, the formatting is lost and they come across as junk "â„ or â€" etc"

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Aug 15, 2010

buildLetter.Append("<style type="text/css">").AppendLine();

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