Prevent User From Using Certain Chars In Textbox
Apr 29, 2010I have a Textbox in which the user types in a name for a folder to be created. However, Windows does not allow the followin chars:
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Prevent A Textbox From Receiving User Input?
May 5, 2010Preferably without turning the "Enabled" property to false, because I still need to output text from it.
I made a custom control in which there is a textbox but I want it used only as an output control, for showing text and stuff. Problem is that as soon as my form opens up the focus is turned to the textbox and I cannot catch my keyboard events on the form anymore(since the other controls are pictureboxes). I need a way to make this box "unclickable" or any way in which it is impossible to attribute the focus.[url]...
.net - Regex Replacing Non-words Chars In Strings, Ignoring Specific Chars?
Oct 8, 2011In VB.net I've got the following line that removes all non-alphanumeric chars from a string:
return Regex.Replace(build, "[W]", "")
I now need to extend this to remove non-alphanumeric chars that aren't [] or _. I've changed the line to:
return Regex.Replace(build, "[W[]_]", "")
However I'm pretty sure that this says
replace non-word or [ or ] or _
how do I negate the tests for the [] and _ chars so that it says
replace non-word and not [ and not ] and not _
Some examples:
"[Foo Bar_123456]" => "[FooBar_123456]"
"[Foo Bar_123-456*]" => "[FooBar_123456]"
C# - Error Creating A User With More Than 20 Chars In SAMAccountName Using .NET?
Mar 22, 2011I'm trying to programatically create a new Active Directory user setting the sAMAccountName attribute with a value larger than 20 chars.
When I call the DirectoryEntry.CommitChanges(), I get the error:
00000523: SysErr: DSID-031A0FB6, problem 22 (Invalid argument), data 0
If I try to create a new user setting the sAMAccountName smaller than 20 chars everything work.Before someone says the the limit of the sAMAccountName is 20 chars, I want to point out that if I try to create the same user having the sAMAccountName more than 20 chars using the Windows tool "Active Directory Users and Computers" everything works. I can see the new entry in AD using the LDP tool and the entry has the sAMAccountName with more than 20 chars.Why can't I create the user programatically using .NET?
Below is the code I'm using:
Using objDirEnt As DirectoryEntry = New DirectoryEntry("LDAP://my.domain.com/cn=Users,dc=my,dc=domain,dc=com", "username", "Password", AuthenticationTypes.Secure Or AuthenticationTypes.Sealing)
Using usuario As DirectoryEntry = objDirEnt.Children.Add("CN=aaaaaa bbbbbbbbbb ccccccccc (aaaaaa.bbbbbb.ccccccccc)", "user")
usuario.Properties("sAMAccountName").Value = "aaaaaa.bbbbbb.ccccccccc"
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C# - Error Creating User With More Than 20 Chars In SAMAccountName Using .NET
Jan 27, 2012I'm trying to programatically create a new Active Directory user setting the sAMAccountName attribute with a value larger than 20 chars.
When I call the DirectoryEntry.CommitChanges(), I get the error:
00000523: SysErr: DSID-031A0FB6, problem 22 (Invalid argument), data 0
If I try to create a new user setting the sAMAccountName smaller than 20 chars everything work.
Before someone says the the limit of the sAMAccountName is 20 chars, I want to point out that if I try to create the same user having the sAMAccountName more than 20 chars using the Windows tool "Active Directory Users and Computers" everything works. I can see the new entry in AD using the LDP tool and the entry has the sAMAccountName with more than 20 chars.
Why can't I create the user programatically using .NET?
Below is the code I'm using:
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WebBrowser - Allow Chars In Textbox
Mar 11, 2010Well I made another thread but I know how to make textbox allowed chars but is possible with web browsers? Like if f1 - f12 is pressed then nothing happen like nothing have been touch.
View 1 Replies.net - Cast A List Object Of Chars In An Array Of Chars?
Nov 20, 2010How to convert or make a cast of a List object typized as a container of chars like
Dim mylist As List(Of Char) = New List(Of Char)(New Char() {"1"c, "2"c})
in a simple array of chars as
Dim mychars() As Char
without make a loop for...
Enter A Certain Number Of Chars Into A Textbox?
Nov 30, 2010It seems like I'm only able to enter a certain number of chars into a textbox.Like if I have a list from 1 to 10000.When I paste it in a textbox it ends like this:
5639
5640
5641
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Why cant I add everything to the textbox?
Set Char Number Limit And Handle Special Chars In TextBox?
Jan 28, 2009I am a new VB programmer and am using TextBox in VB2008. Here are the problems I experienced in TextBox -
1, After I typed number in TextBox and found I need to type another number. So I used backspace key to remove it. But at this time program quit and displayed this problem: InvalidCastException was unhandled. How to solve this issue?
2, Can anybody tell me how to set number of characters are allowed to be typed in TextBox?
3, Can anybody tell me how to implement the feature that only numbers are allowed to be typed? In case letters are typed, how to tell user to re-type?
CD Collection Prevent User For Duplication
Nov 12, 2011I'm writing a program on CD Collection. My problem is write a code that prevents a user to enter a CD collection name that is already stored in the filename.txt.
The rest of my program is okay, but the only problem is something do with btnAdd control.
Here's my whole program:
Option Explicit On
Option Strict On
Option Infer Off
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Prevent A Form From Being Resized By The User?
Jul 13, 2009i have a form that needs to be maximized in vb.net. i dont want the user to be able to change its size or move it around.
View 5 RepliesPrevent User Closing A Process?
Oct 29, 2011I am writing an application that needs to be running all the time and I don't want the user to be able to close it. I don't want to hide the process from Task Manager. All I need is that when the user tries to terminate the process, he has to enter a password.
View 9 RepliesPrevent User From Moving Form
Jan 7, 2009I have the following settings:
ControlBox : False
WindowState: Maximized
Because I want the user to have a full screen application that they cannot close without using my Exit menu. The problem is, they can simply grab the title bar of the form and drag it, exposing the desktop!
Prevent User Order Column
May 27, 2009i want prevent user order column.i have a datagridview , it has allowuserordercolumns properties and it is set to false. But i didnt see so. i still order column.how can i prevent user ordering column.
View 6 RepliesPrevent User To Delete Files?
Sep 20, 2010can FileSystemWatcher prevent the user to delete a file ?
View 3 RepliesAsp.net - Prevent Multiple Logins For A Single User?
Jun 9, 2011How can I prevent a single user from logging in to my asp.net website from more than one computer at the same time?I have tried using the application server side state managenment but it is not work properly.
View 1 RepliesCode That Prevent User To Given Number Less Than 8 In The Text Box?
Sep 11, 2011what is code that prevent user to given number less than 8 in the text box. If the user give less then 8 number then message box box will appear which show Minimum Number is 8. Here is my code
Private Sub btnregister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnregister.Click
If TELEPHONETextBox.Text.Trim.Length = 0 Then
MsgBox("Please Enter Phone Number", MsgBoxStyle.Question)
Me.TELEPHONETextBox.Focus()
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How To Prevent User From Resizing Program During Run-time
Mar 22, 2009How do I prevent the user from resizing my program during run-time? I know how to disable the max and min buttons at the top, but I can still click the edge and drag it to resize my program. I want to be able to disable this feature so my program stays the same size the whole time.
View 2 RepliesPrevent A User From Opening More Than One Form At A Time?
Mar 15, 2012I have developed an application in VB.NET. It has 20 forms. All 20 can be opened from a menu strip control. The user should be able to open only one form at a time. How might
View 3 RepliesPrevent Duplicate Values Entered By User?
Feb 10, 2012How do I prevent users from a inserting a duplicate value using SQL Query
datatype is VarChar(50)
e.g. the name field has already been defined as "Josh", I don't want it to be able to add another "Josh"
Prevent User From Click Checkbox On Listview?
May 27, 2012Private Sub lv_main_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles lv_main.ItemCheck
e.NewValue = e.CurrentValue
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Prevent User From Entering Numbers Or Other Characters Such As $%
Nov 22, 2009i want to prevent users from entering numbers and other characters such as (_,"*&^$#).... into my textbox-u know what i mean! I want my textbox to accept only alphabets. I have written a function that is able to check the numbers but i don't know how to check whether the text contains those special characters. Here is my code for the numbers. i'm sure, just as i'm able to check the numbers. i'll be able to check for those characters.
Public Function ValidateText(ByVal GetString As String) As Boolean
Dim Count As Integer = GetString.Length
Dim i As Integer
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VS 2008 Prevent The User From Entering Record?
Jun 29, 2010 I am using a database (access) were i am not using a primary key field. I would like to prevent the user from entering records , if certain fields allready exsists.
I would like to check for 3 of the fields. When these 3 fields has been filled previously with the same data as the new data, i want to return a message.
I am looking at the fields txtWeeknumber.text & txtTopic.text & txtSubOutCome.text
Here are some of my
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VS 2010 Prevent User O Modify Barcode
Oct 18, 2011I am trying use barcode for input but prevent user to modify the barcode they scan, user are not allow to input the barcode number by keyboard. i am using vs 2010 vb.net
View 11 RepliesAdd To TextBox, Prevent Scrolling?
Mar 25, 2009I have a textbox to which text is continuously appended (every second new status data at the end).I would like to act it as follows:- When the cursor is positioned at the end: Stay at the end, scroll the textbox (text disappearing at the top).- When the cursor is positioned somewhere else (not at the end): Stay exactly there, don't move the cursor, don't scroll, don't change the top line of the textbox.This seems to be surprisingly difficult (tried quite several ways).This is how far i came:
Private Sub addToTextBox(ByVal daStrg As String)
Dim posAtEnd As Boolean, selPos As Long, selLng As Long
If myTextBoxForm.txBox.SelectionStart = myTextBoxForm.txBox.TextLength Then
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Combo Box Drop Downlist And Prevent Text From User
Feb 23, 2011I have read through some of the other posts and I think what I want to do is slightly different. I have a combo box in VB ExpEd2010 that I want to allow the user to only select from the drop down list. However, I want to be able to set the value in the combo box to something that is not in the list. So the drop down list will have values 1, 2, 3 but I want to be able to write to the same combo box a value of 2.4, 1.2, etc.
View 13 RepliesPrevent A User From Entering Data Into A ComboBox Rather Then Selecting
May 14, 2012Is there a way to prevent a user from entering data into a ComboBox, rather then selecting, or can anyone suggest a routine to catch and prevent entries so the user can be made aware the they are not acceptable?
View 7 RepliesPrevent The Settings From Being Lost After The User Renames The Executable?
Oct 31, 2009my settings work, they work great to be exact. But theres a problem, if the user renames the executable to something else, all the settings are lost. Are there anyways to prevent the settings from being lost after the user renames the executable? I'm using My.Settings?
View 7 RepliesPrevent The User From Proceeding If A Specific Text Box Is Empty?
Apr 19, 2012I am trying to prevent the User from proceeding if a specific text box is empty. All of the following lines of code SEEM TO work:
If txtTitle.text = "" Then.....
If txtTitle.Text = Nothing Then.....
If txtTitle.text = Nothing Then.....
(followed by a message box advising of the need for input)
The problem is, if the User enters a space (either accidentally or intentionally) all three of the above recognize the space as a valid entry.
Use 'Form.Show VbModal' To Prevent User To Interact
Aug 23, 2009In VB6 i use "Form.Show VbModal" to prevent user to interact with other window than current one.I wanna know how to do this in VB.Net?
View 2 Replies