I know that this is not the best way of doing this, so I am looking for suggestions for cleaning this up. Currently, it only allows the user to enter Alpha characters, spaces, and press the enter and backspace key in a textbox.
'allow alpha characters, spacebar and backspace key only
If (e.KeyChar < "A" OrElse e.KeyChar > "z") _
AndAlso e.KeyChar <> ControlChars.Back AndAlso Asc(e.KeyChar) <> Keys.Enter AndAlso
[code].....
I have the following code, I was wondering if anyone could show me a way to clean it up abit, it's a bit bulky and repetitive and I am just looking to slim it down.
Public Sub RefreshList()
Dim Button As New ListViewGroup("Button")
CodeKeeper.lvCodeList.Groups.Add(Button)
[code].....
The documentation for an API I am using explicitly says that I need to call close() on an object when I am done with it. I would also like to log something there.I understand GC, might not happen at expected time, etc. etc. I still want to implement some code at cleanup.I read that I need to Override Finalize() to do this.I wrote a console app to test and it looks like it indeed works.However, this does not work with windows forms. I put a break point and it never gets hit in the Finalize method.How do you add some code to be executed at cleanup time for a window form?Here is my console app test:
Public Class Foo
Public Sub New()
Console.WriteLine("In Foo Constructor")[code]......
When i am pressing any key in the textbox it will return "A" Character.[code]...
View 2 RepliesMy 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...
I have a value I am pulling into a string that looks like this:
M'arta
I need to have it to translate the numeric value into an actual value so that the string looks like this:
M'arta
how to accomplish this in VB.NET? Here is the relevant line of code that returns this result:
Dim occupant as String = GridView1.Rows(e.RowIndex).Cells(2).Text
I'm able to convert a character to its corresponding Character/ASCII code using "Asc(CHAR)". I can't find anything on converting this returned Integer back to its original Char form.
View 3 RepliesWhat's the code to make a form keypress event for escape? I know that "If e.KeyChar = Chr(13) Then" is for the ENTER button. What's the code for the ESCAPE button?
View 22 RepliesI am learning visual basic. I have created a form for a calculator. I have placed buttons for plus, minus, division, multiply etc. The programme is working for clicing on buttons i.e. when I want to add two nos. I accept 1st no. from text box then I click on "PLUS" button then I accept 2nd no. When I click on "Equal" button the result is displaying on textbox. But I want to write code insted of clicking on "PLUS" button if press " + " key on keyboard and for "Equal" button, if I press " Enter " key on keyboard, The result for adding two number should display on textbox. I want code for both click event and keypress event.
View 2 RepliesIf Not IsNumeric(Text1.Text) ThenMsgBox("not numeric")Text1.Focus()Me.Focus()End IfWe've migrated our application from VB6.0 to VB.Net.Consider 2 forms say form1 and form2.Form1 is having a Masked Textbox and Form2 is having a listbox.The code which is pasted above is the leave event of MaskedTextbox.The issue here is that the validation message is displayed twice.We've tried the same in the testbox's validating event as well.But still the same result.Please advice on a resolution.Do we have to consider anything which migrating from VB 6.0 for this scenario ? P.S It's migrated application
View 10 RepliesIs there anybody which can assist me with a code in VB.NET visual studio 2010 for validating Greek TAX Registration number (VAT).
View 3 RepliesI have almost 15 forms in vb.net 2005, and i have to validate all them, i am using this [code]...
and is working properly but on each form there are 10 to 15 textboxes, maskedtextbox etc so if i place this code on every textbox so it will be a thounds lines of code? so please assist me that how do i write this code shortly for all forms's textboxes.
im trying to build a form+attachment that needs to be send to email.Im using a VB background code (attachementemail.aspx.vb)and my front (b-16.aspx) I want the page to check that the user entered a email, name, phonenumber and attachment. what command do I put in the axp.vb and what on the .aspx tried just about anything.
View 2 RepliesI have a function i'm using to validate some textboxes. However, the zip code masked textbox validation is not working. Zip code cannot be missing any of the first five digits (the last four digits are always optional). Here is the code that is not working. [code] Also, I have a menu item which when clicked will pop up a font dialog box. When i select a font, it is supposed to changed the font of every control on the form. However, it is not working. [code]
View 1 RepliesI have two textboxes (InputTextBox, OutputTextbox).In the InputTextBox, if I type "a" I need to display tamil letter "அ" in OutputTextBox.For the above requirements, I tried like below,
View 4 RepliesI have a form that I have been getting submissions that have punctuation and special characters that trigger the potentially dangerous Request.Form value error. I have been trying use the httpUtility.htmlencode and Server.htmlencode method to sanitize textboxes and textareas.All my tests do not fire because the built-in request validation of the 4.0 framework prevents the code-behind from executing to perform the sanitization. I have included the ValidateRequest in the page header but no matter what I set it too it still does the same thing.
This is the code I have so far.
Session("RequestID") = Server.HtmlEncode(txtRequestID.Value)
Session("FirstName") = Server.HtmlEncode(txtInstFirstName.Text)
Session("LastName") = Server.HtmlEncode(txtInstLastName.Text)
[code]....
What can I do to make this work? According to all the websites I have visited it should work.
I have a hard problem here: how to cleanup the no use memory from the RAM?
[Code]...
I have a container that need to add many PictureBoxes with a quite large image, then i need to clear all PictureBoxes and create some new ones. like this: If I click the button some more times, my computer will be out of ram, whatever how many ram do your computer have.How can I dispose all the things used in Graphics and the controls in FlowLayoutPanel1 but not disposing the FlowLayoutPanel1 itself?
We currently develop and deploy various applications in our business. Over the weekend, I have decided to develop a multi-use installer and update programs based on conf and command line arguments, works great.
[Code]...
I have a dataset along with code for validation. When I use a datagridview and setting the EditMode to OnEnter I get the red exclamations telling me that I have an error when this is needed. This works all good. when I click the save button on the BindingNavigator, the application saves the record even when this validation is showing. How do I filter up this validation code through a datagridview and stop the program saving the data? If you need the code for more information, I will add this to the forum.
View 2 RepliesI am trying to format xml entries I have so that I can use the xmltextreader without getting errors. I added a default header and footer in the event I notice there is no opening or closing tags. I remove illegal characters and check for unicode but I always find an issue where an entry slips in and gives the error:data at the root level is invalid and when I check that entry is slipped through the cleaning process or just has an unmatched tag somewhere. Now I use
Dim stringSplitter() As String = {"</entry>"}
' split the file content based on the closing entry tag
sampleResults = _html.Split(stringSplitter, StringSplitOptions.RemoveEmptyEntries)
to split my xml into individual entries before I start the cleanup process. Here are my default headers;
Private defaultheader = "xmlns=""http://www.w3.org/2005/Atom"""
Private headerl As String = "<?xml version=""1.0"" encoding=""utf-8""?>" & vbNewLine & "<entry " & defaultNameSpace & ">"
Private footer As String = "</entry>"
is there any tool in the .net framework that can detect and cleanup unmatched tags so that I can get this to work
I have this basic code for cleaning up old files
Imports
System
Imports
System.Data
[code]....
The only variable is the directory path. I have the directory created and there are a few .txt files in there that should meet the criteria. However, when I run it in SSIS, I get the following error (short version) "The element cannot be found in a collection."
The following code for DISC CLEANUP works on Vista and windows 7 but not on XP?
Drive = "C:"
_process = New Process()
With _process
[code]....
I've had 2008 express on this PC since it came out -- I basically have ONE important project that now is being troublesome.
Just had an "unhandled exception" and "configuration system failed" -- errors I've never received before and I've just made minor changes to the program.
For one, I was thinking about a fresh install of 2010 express (but remember some real problems when I upgraded from 2005, so ??) be afraid ? very afraid?
ALSO --
What are the mandatory files I need to save in a project folder?
If I delete the bin and obj folders (plus?) and let it write new ones will that sometimes cure some problems?
What is a good way to SAFELY keep all your hard work but get rid of possible clutter and ?
Configuration system failed to initialize --
Is it possible to get character character code in Visual Basic 2008 and to get character from character code ( Without form1_keyDown or KeyUp)?.
What i need is two functions, first to get character code of a character, and second to get character from character code.
I am trying to format xml entries I have so that I can use the xmltextreader without getting errors. I added a default header and footer in the event I notice there is no opening or closing tags. I remove illegal characters and check for unicode but I always find an issue where an entry slips in and gives the error: data at the root level is invalid and when I check that entry is slipped through the cleaning process or just has an unmatched tag somewhere.
Now I use
Dim stringSplitter() As String = {"</entry>"}
' split the file content based on the closing entry tag
sampleResults = _html.Split(stringSplitter, StringSplitOptions.RemoveEmptyEntries)
To split my xml into individual entries before I start the cleanup process.
Here are my default headers:
Private defaultheader = "xmlns=""[URL]"""
Private headerl As String = "<?xml version=""1.0"" encoding=""utf-8""?>" & vbNewLine & "<entry " & defaultNameSpace & ">"
Private footer As String = "</entry>"
Is there any tool in the .net framework that can detect and cleanup unmatched tags so that I can get this to work.
This might be a really easy one but I couldn't seem to find an answer anywhere I'm trying to comment my code as follows
Session("test") = "JAMIE" _
'TEST INFO
& "TEST" _
'ADDRESS INFO
& "ADDRESS = TEST"
With the code above i'm getting the error Syntax error But when I remove the comments like so
Session("test") = "JAMIE" _
& "TEST" _
& "ADDRESS = TEST"
It works fine so my guess is that I cannot comment my code between the _ character.
I have been making a VB app that adds two text boxes together. This all adds up fine but I was wondering if there was any code to be able to turn the answer into a value such as 10.54 instead of 10.54653
View 14 RepliesI have been making a VB app that adds two text boxes together. This all adds up fine but I was wondering if there was any code to be able to turn the answer into a value such as 10.54 instead of 10.54653Basically turning the answer into a money value?
View 13 RepliesI tried to put everything about Cleanup Routines toegether i've read! Do you think that makes sense? It works...i just want to know if its reliable and efficient.[code..]
View 1 RepliesAfter I ran a disk-cleanup (in my case AVG PC-TuneUp), the loading of my VB.net project gave error on a missing file.Changing the build-configuration (DEBUG->RELEASE->DEBUG) would recreate the file and all is OK. But I have basic configuration-info for the build, maybe in more complex cases some important details could be lost when the file gets deleted.I would think an information as critical as that, would be placed in the project folder, or be part of one of the many files that make up the project, but not in the temp-folder.
View 7 Replies