Use The ExceptionMessageBox To Prompt User That A Field Is Required?
Sep 16, 2011
I'm trying to use the ExceptionMessageBox to prompt a user that a field is required. I'm getting a syntax error saying "Type 'ExceptionMessageBox' is not defined". I added the ExceptionMessageBox as a reference, but still has that same error. I'm using Visual Web Developer 2008 Express.
Here's the code:
The bolded part is where I'm getting an error.
Try
If rptAcctNo = 0 Then
Throw New ApplicationException("Error occurred")
[Code].....
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Jul 18, 2011
Does vb 2010 have a 'REQUIRED" property or control that allow you to make a textbox a "required" field? I googled and saw something about required property in controls in toolbox but somehow I could not find it anywhere in my vb 2010 toolbox. Would it be easier to write it? Does anyone have sample code?
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Dec 18, 2010
I need to set validation on a textbox where the user types in their email address... This is not a required field though so I want to allow the form to be submitted if the textbox contains the default text ("Email address").I've posted the code i have already to ensure a valid email address is typed.
<asp:RegularExpressionValidator CssClass="errorpopup" Display="Dynamic" ID="regexpEmail"
ValidationGroup="mySubmit" runat="server" ErrorMessage="<strong>Please enter a valid email address.</strong>"
ControlToValidate="tbEmail" ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*"
SetFocusOnError="true" />
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May 29, 2009
I'm using VB 2008 with .Net 3.5 and I want to check that a combo box has a selected value greater than 0 (default = Nothing Selected) before allowing the user to move off the tab page to another tab page. The Leave event does not allow me to cancel and the Validating event on the tab page does not fire unless the user has at least visited the combo box field.
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Jun 13, 2010
How can I do it so every time the user loads my application it will automatically (without prompt, or user selecting) upload all the files in a folder i select beforehand and add them into ListBox1
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Oct 5, 2007
I have three required field validator ,in that 2nd validator should not fire even if I don't enter any any value in the textbox. I tried with Javascript. But couldnt do it.
<%@ Page Language="VB" AutoEventWireup="true" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "[URL]">
<html xmlns="[URL]">
<head runat="server">
<title>Untitled Page</title>
<script language ="javascript" type ="text/javascript" >
function step2()
[Code] .....
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May 6, 2011
I have 5 combobox and they are required. I would like the user to put input or select the combobox. If no input, msgbox comes up then he has to insert input or click on a custom cancel button i have made.
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May 28, 2010
I have 2 text boxes one for email and one for Name. If text is entered in email I want to make Name required field. How can I do this using .net validation controls?
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Sep 8, 2009
Is it possible to put Number validation in required field validator in asp.net text box?
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Dec 21, 2011
I have a form on an asp.net (VB) page which has 2 sections.
All of section 1 is always required, but section 2 is optional. However, if section 2 is started, then all fields are required.
I'm stuck as to the logic I need to create this validation.
Here's my code:
<form runat="server">
<div>
<asp:TextBox runat="server" ID="field1a" Text="Name" />
[Code].....
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Dec 29, 2010
login function but with 3 required field, let say username, password1, and password2
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Feb 27, 2012
I have used ADOX for create some fields in my database in access but the required property of this appended fields (columns) are set in "yes" but I want to be them "No" who knows how can I solve this problem
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Oct 3, 2011
I need to prompt the user to input a few key/value items.Instead of building a form with a bunch of label + textbox, I figured I could use a simple, unbound grid.
I know the ListView widget can be displayed as a grid, but it appears that some added code is needed to make it behave that way.If you've investigated the matter recently, which solution did you end up using?
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Feb 11, 2012
I'd like for my application to prompt for user credentials as soon as it starts. The reason for this being that it is an app for our IT Helpdesk that will be run on user's machines, and I need to make sure it is always run with administrator credentials.
Is there a simple way to get the program to prompt for credentials on execution?
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May 12, 2009
I wanted to know how my users can write something in a textbox, then allow them to save it as a .txt file.
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Mar 1, 2011
Am to prompt user for # of quiz scores to input, should then create an array large enough to hold those number of scores, set up loop that allows user to enter approp. # of scores, all scores will be integers, each score should be placed in the array.
[Code]...
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Aug 22, 2010
I'm trying to figure out how to prompt a user to enter a captcha. Some programs out there have a little popup with the captcha image and a textbox, the user then enters the characters from the image and the captcha is solved by the user of the application. When I try to request the image directly, it gives me a different image than the one currently in the webbrowser control. Any ideas how I can create the pop up of this captcha image for the user to enter?
Note : . I'm looking for a way to prompt the user to enter a captcha from website.
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Feb 7, 2012
I'm writing the following bits of code for a SaveFile Dialog box in Visual Basic 2010.NET. The code works well as the XLSX file is created and opens in Microsoft Excel. However, the problem that I am having is that if the program overwrites a file, the user is getting two prompts. One prompt is from the program's own SaveFile dialog confirming the choice. The other is from Microsoft Excel asking you the same. It's as if the program is running in the background. Does anyone know how I can write this code to save the file as an Excel file? [Code]
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Nov 17, 2010
I working working with Visual Basic 2010 Express. I have a DataGridView that is linked up with a local SQL database I've created. I have it currently where the user can click a button to save their data to the db, but am unsure how to prompt them to save or discard changes if they are closing the program without saving.
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Mar 16, 2011
i have 4 text box how can i display a messagebox that will prompt the user if theres any duplicate text on the four Textbox. Main idea: i just want everything that the user typed in each 4 textbox to be unique."i tried coding at the textbox that if the text box is change, that if theres another textbox with the same data i typed a messagebox will prompt. almost does it but, since i added a diaglogresult code that if i click yes the text box with the code will be change to a null object.. but since the other text box are null objects the messagebox will prompt me again..
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Apr 16, 2011
I know how to add an exit button with a prompt. However, I do not have the slightest cluse as to how I can add this same functionality to the window so that if the user clicks the X in the upper right corner, there is a prompt message confirming the user needs to exit.I added a form closing event but getting wrong results, the form closes if I click no and message window does not leave when I click yes to stay.
Code:
Private Sub frmTest_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
If (MessageBox.Show("Are you sure you want to exit?", "Close Form", _
MessageBoxButtons.YesNo, MessageBoxIcon.Question) = _
[code]....
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Sep 28, 2006
Is there any way to use a VB form to supply user credentials to the Runas command in command prompt? I basically need something exactly the same as the GUI for RunAs but just for Internet Explorer (yes I know you can right click and go RunAs but that cant be done in this case). So the user would open this VB form, type their username and password in, hit OK and it would open Internet Explorer with their credentials (they log in under a generic account used by many people).
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Jun 10, 2011
I have a VB.Net application that is using an Accss 2003 Database (Design Master) and I'd like to run an SQL Transact command to make an existing text field requried. So far I have tried the following and both appear to give an error and do not make my field "Required" (IS NOT NULL).
ALTER TABLE tblJobs ADD CONSTRAINT LeadSourceNotNull CHECK (LeadSource IS NOT NULL)
ALTER TABLE tblJobs ALTER COLUMN LeadSource IS NOT NULL
simple method to make an existing Access 2003 Table field required?
PS: I will be running a query to make all row entries that have a null in the LeadSource field equal to "Unknown" before I ALTER TABLE?
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May 24, 2011
I've written a program using Visual Studio 2008 Standard Edition in Visual Basic. It's a Windows Forms Application. The program is very simple, it just reads a directory of text files, parses the text and outputs another text file as .CSV file
for import into Excel. There's no user interaction required but it never displays the form and therefore the progress bar. If I put a GO button on the form and modify the program so that the subroutine that does the processing isn't called until the user clicks GO it shows the form and the progress bar etc. How can I make the program run at startup, show the form, show the progress bar and then pause for 10 seconds or so and then exit?
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Mar 20, 2010
i'm using vs 2005 vb.net language windows application. i finished my program but i found a problem that when i add a new customer and the first name textbox1 is empty a msgbox appear but if i press ok it will continue and an empty customer is added to my database i want to know how to stop the to continue until the user enters first name i want the user not to be able to go to next step until filling all the required fields.how can i do this?
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Nov 4, 2009
I am building a program where all the inputs (10) required from the user are asked on one form. Since it is not possible to let fields blank on the database, I would like to know how can I build an 'IF' saying that if all fields are full, then the database CAN save all the input. So that if there are any field blank, it won't save. I just dont know how to do the database condition. Thats all.
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Sep 14, 2009
I'm writing a small application to detect the insertion of USB memory sticks and prompt the user to accept the device or reject it. Rejecting it would prevent its being loaded by Windows. I have the code that detects insertion & removal working fine but have no idea how to cancel the insertion.I was thinking that I could intercept the DEVICEARRIVAL message and kill it off before its actioned by Windows but I am lost with this.code to show the way.Heres the main part of the code I have so far-
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
'This kills off any 'autoplay' capability in the stick
If QueryCancelAutoPlay = 0 Then[code]......
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Aug 27, 2011
It's probably the most basic of things, but all I can find is how to launch a program, and not with the interactions I desire. Any tips as to the terms to use to search for answers, or links to topics regarding questions similar to mine, would be very appreciated. I have a wealth of info to read through, but I could use your knowledge to save myself time.Here is what I am trying to do:
Use a Button (A) to Launch a Prompt where User Selects Directory Path to an executable Program. The Selection is to be Persistent after the initial selection (saved in a settings file i assume?), and the Selected Path (or just "programname.exe") is to be Displayed in a Text Field (B). Launch Selected and Indicated Program via a Launch Button (C)
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Apr 8, 2011
I have a class set up to hold values on a registration form (VB.NET, MVC), and among the properties is a Password property:
[Code]...
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Feb 16, 2009
I'm trying to code an 'increase' button to prompt a user to input a rate by which to increase select prices in an array.It should request the increased rate, then request a number from one to five, representing which price in the array to increase.Then, if 'increase' button is selected again and another number from one to five is chosen, then that element should be increased.It's working, but all the numbers in the array are changed. And, when I hit the increase button again, the array is repopulated below the first price increases instead of only replacing the designated price.
'declare 5 element array of prices
Dim prices() As Double = {12.2, 8.5, 12, 50, 2.4}
Dim rateIncrease As Decimal
Dim isConverted As Boolean
[code].....
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