One Set A Maximum On Number Of Character A Textbox Can Use?
May 14, 2011
My issue is that some websites only allow say 15 characters maximum to be used to create a user name where other sites do not. Currently I have one text box on the screen and a button, and a web browser that navigates to two sites.Site #1 has a cap of 15 characters max to create a user nameSite #2 doesn't have any maximum amount of characters to use.I am wanting to know how I can enter lets say a 20 character username into the text box and have the code set a max of 15 characters for site one and nothing for site 2. I was thinking that this could be done when passing the information from the text box to the text box on the screen with something like
Textbox1.Text.value.length= maximum 15
Site #2:
Textbox1.Text
[code].....
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Apr 21, 2010
i am trying to put a maximum row number of lines in a multiline textbox. What i want is to achieve something like a console, with a maximum number of rows, with the top rows to dissappear and to keep always the last i.e. 500 rows. a note: for the textbox text i use the following algorithm
dim text
textbox.text = textbox.text & vbcrlf & text
the problem is that after a certain number of rows the program starts to get a little slow. So i guess if i put a limit to the rows i will fix this.
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Mar 23, 2010
Currently i try this code but[code]...
but i want to allow only a-z character and 0-9 number. not allow any symbol
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Apr 4, 2011
how can i get the maximum number in visual basic
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Jan 23, 2006
I'm using VS 2005, after VB6 to VB.NET conversion we have fixed all the errors but still have unidentified number of warnings. Is there any way to increase this limit of 101 warning you can see after compiling? I want to actually see the total number of warnings to get an idea how much work is there.
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Feb 9, 2011
Im trying to complete code for a program I am running regarding the Collatz Conjecture. Im using Visual Basics 2010.This is the code I have thus far :
Dim a, count As Integer
a = TextBox1.Text
count = 0
ListBox1.Items.Clear()
[code]....
This code allows me to type in a number and see the length of the hailstone sequence and the hailstone sequence itself. What im not quite sure on how to do is this following: I would like to add the maximum sequence number reached in my program, but I am unsure on what to do.
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Jan 13, 2009
how many variables and controls (i.e. text box, listview, buttons, etc) can a VB program has without slowing down its performance?
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Jan 18, 2011
I am moving from VB 6 to VB.net. Are there any practical or hard limits on the number of controls per form? If so, what are the limits?
Are control arrays still supported in VB.net?
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Aug 13, 2009
What is the maximum number of executions in a while loop in VB.net that it will allow? Meaning, it is checking for a variable to equal some value, but that value never comes? How many times will it execute the code before it quits? Is there some way to set the maximum number of executions without terminating it programmatically?
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Nov 14, 2011
I'm trying to figure out a good way of implementing a List(Of) that holds a maximum number of records.
I have a List(Of Int32) - it's being populated every 2 seconds with a new Int32 item.
I want to store only the most current 2000 items.How can I make the list hold a maximum of 2000 items, then when the 2001'th item is attempted to be added, the List drops the 2000'th item (resulting in the current total being 1999).
Thing is, I need to make sure I'm dropping only the oldest item and adding a new item into the List.
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Oct 27, 2010
one of our programmers is having an issue with a asp.net app. i had him rebuild and recompile the app to the network share on the staging server and received the same. i even deleted the files in this folder(C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files). to make sure that the server was not the issue i installed it on another server and received the same error.i found a article on msdn that states that its a source code issue.
Compiler Error Message: BC30041: Maximum number of errors has been exceeded.
Source Error:
[No relevant source lines]
Source File: vbc : Line: 0
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May 5, 2011
I have been looking all around Bing and Google trying to find this, does anyone have an answer? How many line continuations will the compiler tolerate in VB.NET 2010 (.NET 4)?
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Mar 9, 2012
I developed a client-server application using soket technology. At this moment the number of clients that connect at the same time is 40. Question: What is the maximum number of clients that can connect simultaneousl
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Apr 5, 2011
1) Is it possible to set the maximum number of characters that a string can hold?
Just like the following example from VB6:
Dim my_var As String * 10
2) I noticed that Option Base 1 does not exist. I created a table my_table(2) and tried to msgbox the following[code]...
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Sep 2, 2010
Im wanting to use a textbox for the entry of Decimal figures (currency). Is there any way I can have it so if a user does not put a decimal figure (ie 15 instead of 15.00) it will put it on.
I tried a masked textbox, but that means i have to set the maximum number of digits before the decimal too which is no good.
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Jun 26, 2009
I have this app to copy files with a progressbar... What I'm trying to do is to set the progressbar1.maximum to the number of files in the folder. But I'm getting a cross-thread error. This is the error I'm getting: Cross-thread operation not valid: Control 'ProgressBar1' accessed from another thread than the thread it was created on. This is where I'm trying to set the ProgressBar1.Maximum: [code]
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Feb 7, 2011
how can i code a simple program to generate the maximum number i enter/type within 3 or more numbers using math.max. for example, if i enter 25, 60, 45 how can i use math.max to calculate the largest value out of the 3 numbers?
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May 9, 2010
My form has a texbox where user enters an ID. IDmust be4 chracters in length andof the form: begins with either "E" or "e" and the next 3 chracters cannot be "all characters".
Example:
E102 - corect
e3ff - correct
[code].....
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Nov 27, 2009
What is the maximum amount of characters that can be put into a textbox in vb.net 2008?
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Mar 18, 2009
I added a multiline textbox to my form. I only wanted that users can add 3 lines.This code works perfect if i don't add the messagebox. Any ideas?
Private Sub txtFunctie_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtFunctie.TextChanged
If txtFunctie.Lines.Length > 3 Then
SendKeys.Send("{BACKSPACE}")
[code]....
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May 6, 2010
How do I code in vb.net that the text box can only accept 10 inputs from the user. User can only enter 10 strings.
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May 13, 2009
I recently upgraded a project from 2003 to 2005, and there were errors in them, but I am unable to view any in the error list. Only one error displays in the list
[Code]...
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Aug 25, 2009
How do I check to see if the first character of a string is a number in VB.NET? I know that the Java way of doing it is:
char c = string.charAt(0);
isDigit = (c >= '0' && c <= '9');
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Jun 21, 2010
I'm using vb.net and a DGV to open a access DB. On load im filtering out everything except what was created on the current date. [code]...
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May 27, 2010
i have a datagridview linked to a access DB that right now looks in the 5th column and counts the number of "c","o" (completed and open) but it gets the count from the entire data base. I am able to filter the ones for a certain day and view them on the grid but how to count the number of occurrences that are visible and not the ones that have been filtered out?
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Feb 29, 2012
Assuming that I am going to add new record. I use this function to generate the ID for the new record.
Public Function GetMax(ByVal strTable As String, ByVal strField As String) As Integer
Dim cmd1 As New SqlCommand
Dim conn As New SqlConnection(gStrConnection)
Dim no As Integer
Dim str1 As String
[Code] .....
It returns 1. How can I modify this to make it 20120001 wherein the first 4 number (2012) will depends on the year today.
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Feb 16, 2009
what is the vb.net equivalent to vb6 String(number,character?
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Oct 4, 2010
i want to convert following number to character equivalent but without using any special character.
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May 31, 2011
I'm scanning through all characters in a textbox. Then the program counts how many of each character is in the textbox. Here's the code which adds all characters to a list:
For each c as char in TxtBox
list.add(c)
Next
Everything's working fine, except this will also add returns to the list, which I don't want. I thought I could write like this:
If c <> chr(10) Then
list.add(c)
End If
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Nov 11, 2009
How can I count the amount of times a character appears in a string?
The assignment is to create a program with 2 text boxes, label, and a button. We then need to type a phrase into the first text box, and a character in the second. Then click the button and then the label will display the output of how many times the character in the second text box appears in the first.
I have all the above setup except for how to display the amount of times the character appears in the first text box, here's a picture:
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