DateTimePicker - Check For Valid Birthday Input
Jul 27, 2011How can I know if I input a valid Birthday of a person in vb2005 windows base. If the user input the current date it must put a message that it is not a valid birthday.
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How To Check If EnterKey Input Valid
Mar 21, 2012I'm trying to check if the input in the "enterKey" is 1) Numeric input value, 2) Integer input value, 3) Non-negative input value, and 4) Input value less than or equal to the Maximum Score which is 10. When I enter the number 10, my error message pops up.
Here is my
If e.KeyCode = Keys.Enter Then
If (IsNumeric(txtQuizScores.Text)) _
AndAlso (CInt(txtQuizScores.Text) >= 0) _
AndAlso (CInt(txtQuizScores.Text) <= 10) _
AndAlso (CInt(txtQuizScores.Text) Mod 1 <> 0) Then
[Code] .....
Check VB, Console Application, User Input To Make Sure They Entered A Valid Number?
Feb 2, 2012Vb is not my language of choice , but I have to do this for school and I'm not having a very easy time with VB's documentation.I'm just creating a very simple console application that accepts user input: degrees in Celsius, and converts it into Fahrenheit. I want to make sure that if the user just hits enter without entering the degrees in Celsius, then an if else statement will catch and write to enter Celsius again.Here's what I've tried:
[Code]...
Regex - How To Check If The Input String Is A Valid VB String
Mar 15, 2009We know that VB string start and end with double quotes " "
So we have to use "" if we want " in VB string.
I wonder if there is a regular expression pattern which will match VB string?.
VS 2005 - Login Failed - Input Valid Username And Password In Form Textbox To Input Strings In Php
Sep 25, 2010I have a problem with the code, I have input the valid username and password in the form textbox to input the strings in php, but it keep displaying the messagebox that says login failed.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
MessageBox.Show("Please enter your username")
ElseIf Textbox2.Text = Nothing Then
MessageBox.Show("Please enter your password")
Else
[CODE]...
I don't really know why it keep displaying the messagebox that says it failed when I have input the valid strings in the first place.
Validating DateTimePicker Input?
Jan 11, 2009I only want the user to be allowed to select Thursday's (payday). So I did something like this:
Private Sub dtpStart_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dtpStart.ValueChanged
If Not dtpStart.Value.Date.DayOfWeek = DayOfWeek.Thursday Then
[code].....
Check If Input To Group Number And Number Of Units Are Correct Input By Making Error Handling Exceptions
Sep 23, 2010Part of my assignment is to check if input to Group Number and Number of Units are correct input by making error handling exceptions...
I have to check the following:
a) group number is neither 501 nor 062
b) number of units are NOT numbers
c) number of units is NOT a positive number
So my first question is, am I checking correctly? 2nd question is, How do I make sure my Exceptions will pertain to their correct respective things (a, b, and c.. above)?
[Code]...
Event For Check Box In DateTimePicker Control?
Aug 24, 2009I have put the DateTimePicker control on my Form and I have made it's CheckBox property to ture ,
Now I need to know is there any Event which is fired when the Check status of the checkbox in DateTimePicker is Changed.
When DateTimePicker Check State Changed
Jul 2, 2009When DateTimePicker check state changed,ValueChanged and TextChanged events don't work always.
View 8 RepliesShow If The User Has Entered A Valid Input?
May 24, 2010I created a usercontrol which has a Textbox and a Label. Setting the (boolean) textvalidity property we can toggle the icons on the label to show if the user has entered a valid input.
Sub New()
' This call is required by the Windows Form Designer.
InitializeComponent()
[Code]......
The problem is... when the control is used... the constructor initializes it to true (According to my code) so the icon is already displayed.
Set Database To Null When Datetimepicker.check Is False?
Aug 12, 2011How to set database to null if datetimepicker.check is false?what is the code other than empy string ""?[code]...
View 4 RepliesDateTimePicker ValueChanged Event - Check State Of The Checkbox
Mar 31, 2010It looks like there is a bug in the DateTimePicker control, because I don't find any event specific for the changing the check state of the checkbox, only the ValueChanged event seems available. So that event should trigger every time the date in a dtp is changed manualy, or by choosing a date from the calender or when the checkbox in the dtp is checked or unchecked by clicking on it, the event ValueChanged should be triggered. But it doesn't do that all the time.
[Code]...
VS 2008 Check If DateTimePicker Control's Value Is Before The Current Date?
Jun 1, 2012If DateTimePicker1.Value.Year <= DateTimePicker2.Value.Year Then 'dtp2 = expiry date
If DateTimePicker1.Value.Month <= DateTimePicker2.Value.Month Then
MsgBox("Expiry Date Correct!")
Else
MsgBox("Expiry Date incorrect!")
End If
End If
How would I get it to check the date? Datetimepicker1 is the current date, while Datetimepicker2 is the expiry date.
Check If The Name Is Valid?
Jun 4, 2011is it possible to check if the customer input his complete name is valid or not?
View 1 RepliesCheck Date Is Valid?
Oct 10, 2011I have a txt file with a few settings that get loaded into the Program. These are put into an array. As the array holds different types (int, string, dates etc) its set to object type.
What i am trying to fingure out is how to check the date is a valid format, by returning a false value so i can have a msgbox pupup and say the date in the file is invalid. I cant use isdate() on the string from the file as even if the date format is correct its a string not a date type so i have to convert it first (which is the point it throws an error).
Check If A Character Is A Valid Key?
Jul 22, 2010I need to check if a character is a valid Key (type) in VB.NET (I need to turn "K" into Keys.K, for example). I am currently doing this to convert it:
Keys.Parse(GetType(Keys), key, False)
Check If An SQL Connection Is Still Valid?
Jun 4, 2011I have an VB.NET application. This Application is permanently resident in memory and minimized to the tray area because we use it very often. The problem comes in when we VPN into a client's site. These VPN connections trash all other network connections to and from our machines.Then every time my VB.NET application refreshes its database, errors start occurring, because the machine has lost connectivity to the SQL server, however, these are not at the connection level, but only when the reader attempts to read.
I am checking for connection.open, but because of the SQL connection pooling, I just get a previous connection that was valid before the network was cut. Is there anyway to check if an actual SQL connection is valid, prior to re-issuing a connection from the pool?[code]...
Check If The Login Is Valid?
Nov 7, 2010After I send a post request to login to a site (using httpwebrequest), how do I check if the login is valid?
One way to do it is to read the whole html using
dim reader as new streamreader(response.getresponsestream) dim str as string = reader.readtoend and then check the html for any unique string (e.g. "log out"), to tell if the login is successful.
But reading the entire html is too long, so how do I shorten the process?
I tried
Dim str as string = response.getresponseheader("Set-Cookie")
But str is a blank string.
Check If Urls Are Valid?
Apr 25, 2009I am trying to create a program that visits a site, and checks urls if they return a 404 page.[code]...
View 9 RepliesForm Validation - User Does Not Input Valid Text, EXIT Button Also Does Not Works?
Apr 15, 2012I am doing form validation in VB, I validate the text field data by using txtName_LostFocus function, and on wrong input I used txtName.Focus(). It works well for me. But problem is that as for as, user does not input valid text, my EXIT button also does not works.
View 1 RepliesValidate Birthday With Functions?
Apr 12, 2012am trying this program for school (spent hours upon hours upon hours working on this) and I just have not gotten it to work. This program is supposed to take a name and birthdate and make sure that the birthdate ranges are correct. For example the "month" field should have an input between 1 and 12, the date field should have an input between 1 and 31, and the year field should be between 1850 and 2012.
Imports System.IO
Imports System.Text
Public Class Form1
[code].....
Check Valid E-mail Address?
Feb 2, 2011I am developing client application I store client details with e-mail address. but I give permission to users to entry valid e-mail address of every client, In that case I will check valid e-mail address for that how to check the given valid e-mail address
View 2 RepliesHow To Verify An Email (Check If Its Valid)
Nov 22, 2009Well its not very important, but i have 500 emails (yahoo) and i want to make a program that checks if these emails are valid. Basically i want to send newsletters to these emails, but i want to know if the emails are really valid. How can i do that. I know there are some programs i can use, but i want to make my own program.
View 8 RepliesHttpwebresponse - Use WebRequest To Check If URI Is Valid?
May 27, 2010Looking for the best way to determine if a URI exists in VB.NET without downloading the actual content. System.IO.FileExists/My.Computer.FileSystem.FileExists can be used locally to determine if a file exists, is there an equivalent for the Web?
Currently I am using a HttpWebRequest to check URI existance using the ResponseStream. This populates the stream if the target does exist and throws an exception if it doesn't. The function is being expanded to also check for PDF files (typically 5MB +), images, etc and it will be a waste of time/bandwidth to actually populate the content into a stream.
In the case of "Success" (the target does exist) I do not wish to download the file or page, simply to end up with a Boolean which indicates the whether something exists at the end of this URI.
What Is Correct Way To Check If A Given IMEI Is Valid
Mar 25, 2010does somebody knows how to check for a valid IMEI?I have found a function to check on this page: url...But it returns false for valid IMEI's (f.e. 352972024585360).I can validate them online on this page:url...What is the correct way(in VB.Net) to check if a given IMEI is valid? [code]
View 1 RepliesGet Present Date To Tally With Birthday?
May 19, 2011i am working on a small VB.net project and i was told to include a function where if the registered date of birth of a member equals todays date (Day and Month of course), an alert should be triggered , maybe an alarm or a Msg box poping up whenever the application is loaded saying that today is Member X birthday.
View 5 RepliesVS 2010 Won't Fill In Birthday Field?
Aug 5, 2011I'm quite a newbie when it comes to coding. I am creating a bot to automatically fill in a form for me.I've got everything but the birthday down. When I go to debug, I select my month, date, year, and click the start button. It'll load the webpage but it won't fill in the year section of the birthday. I looked over the code and it looks fine to me.
[Code]...
Check For Valid Date Before Loading Data
Aug 1, 2009How to deal with a "date bug" that I have encountered in my program. Here is a scenario.
1. My system has a locale of en_US and therefore displays the date as MM/DD/YYYY
2. My program tries to import from a csv file in which it carries out tests on a field to check for a valid date before loading the rest of the data.
3. If the date in the file is in the format DD/MM/YYYY the test fails and therefore the data is not loaded. This is the bug.
I would like code to test for the date string in the csv file that will recognize any date format (locale).
Check If An Array Is Valid Without Causing An Error?
Apr 23, 2009I create an empty boolean array check_state(), and then if a condition is met later in the script, I redim it and save a list of check box states as booleans into the array, and later check the array values, but I can't work out how to do this without causing an error if the array was not defined to begin with
View 1 RepliesCheck If Email Is Valid SMTP Response?
Sep 23, 2011I cant find any good example of vb.net checking if email is valid, as example "something@yahoo.com"
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