Form Validation - Validations Is Triggered Then It Goes Through Each Of The Validations And Message Boxes
Sep 23, 2009
Is there an easier or more concise way to validate my form other than what I have below? Also, for some reason if one of the validations is triggered then it goes through each of the validations and message boxes before it will let me enter the value. Is there a way to keep it from going through all of the validations every time?
If txtCustomerNm.Text = "" Then
MsgBox("Please enter the customer name.")
txtCustomerNm.Focus()
End If
[CODE]...
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Apr 3, 2010
I need to insert validations of text boxes for my assignment n I wish to know how to display certain error messages if a user wrongly inputs an information.
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Feb 20, 2012
Anyone who know how to make a validation for duplicate data?. i have my own code but not working. This is my sample code
[Code]...
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Aug 30, 2011
I have 2 forms (form1 and form2). I'm passing 2 numbers from form2 to form1 (see image/attachment). I want to make sure that 1 of those 2 numbers (passed from form2) aren't the same as any number on form1 in column2. For example, if I were to pass the numbers "2, and 3", the program should give an error saying, there is already 3 in column2. It doesn't matter if the first number (in column1) is the same, but the second number should NOT be a duplicate of any number in column2.
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Sep 16, 2009
I have few text boxes which has required field validation. In the same page there is a back button and next button. When i click in the back button the validations are working, when i click on the next button validations are not working (means the form is moving to the next page)
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="RequestorForm.aspx.vb"
Inherits="WebApplication1.RequestorForm" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[Code].....
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Jan 10, 2012
i'm trying to make the regular expression for validations, but I can't manage to get a control of the result I want.
I wanna input in a textbox the following :
(029)-234-2342342
Or what is the same, the ( ), 3 numbers inside, a "-", 3 numbers, another "-" and 7 numbers.
How can I manage it??
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Sep 9, 2010
How to make validations for textbox allow numbers only or textbox allow letters only?
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Jan 16, 2009
When you Use Socket.Send Ether in VB6 with the Winsock control or Vb.Net sockets / Windows API does it generate that if you send "Hello" that on the other side it will get the Full Message Before the Data Arrival event is triggered??Or is it possible it can get it in two Different events like "He" & "llo" and a Last question, TCP is stream oriented, is there a Protocol that is Message Oriented but is wrapped with TCP, if not what is a good Delimitor to use with TCP, Usually ide use &H1 OR &H0 but I assume &H0 is common.. or Should I just add a Length Param before each Packet I send..?Now if thats the case and I got the Delimitor route... What if Im sending Chunks of 8192 of a File in a while loop and on a different thread I send a Command if I use the Length Param isent there a huge chance that the messages will get sent like this
[code]...
BUT the issue lies as it thinking that only the 3 of 4 of the incomming file Frames are getting Recv due to it not knowing which frames are for which. Mainly due to me sending a big burst and on the other side recving random chunk sizes on the other side.Edit: Got another question, If I send two bytes across the internet via TCP, will they ever arrive as two different I belive the term is Frame or is that only when they exceide the size of the MTU will the Message be Split. The reason why is if I send a Header saying SOH, Length Of Message(2Bytes), thats 3 bytes can I say 100% of the time the computer on the otherend will recv that all at once so I can parse it? And What ever happen to Flush for Winsock?
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Feb 25, 2012
I have 4 Group Box,each contains some text boxes and combo boxes.I used Supervalidator Required Field Validator control to each of the controls in Groupbox1.and i implemented validation when cursor leaves the focus from the GroupBox1.it works perfectly..But my problem is,when i clicked "Reset" button it automatically turns on the validation and there is a "This field is required" message in other fields appears,after entering values to those fields in GroupBox1,then Reset works. How can I disable that validation check when the user clicks "Reset"?
Here Details1,Details2,Details3,Details4 are the name of the GroupBoxes
Private Sub Resetbtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Resetbtn.Click
For Each Item1 As Control In Me.Details1.Controls
[Code].....
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Nov 12, 2010
I am using many text boxes in a form. How do i validate them, In certain text boxes I have to use only text and in some I have to use only numbers. Is using ASCII is a right method or is there any easier method to do this. If so please let me know the coding.
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Jan 17, 2011
I have a custom validator:
<asp:CustomValidator ID="QuestionValidator" runat="server" ErrorMessage="Please select an option" ClientValidationFunction="QuestionValidator_ServerValidate" OnServerValidate="QuestionValidator_ServerValidate" ValidateEmptyText="true"></asp:CustomValidator>
I have a list of questions provided by a datalist, which I need to ensure a user selects an answer to each question. I then have my validation functions:
Protected Sub QuestionValidator_ServerValidate(ByVal source As Object, ByVal args As ServerValidateEventArgs)
Dim SelectedItem As Boolean = False
For Each c As Control In Page.Master.FindControl("form1").Controls
If TypeOf c Is RadioButton Then
[code]....
When I run the page, there is no validation and no error message. Please can you point out where I am going wrong, I'm suspicious it is at Page.Master.FindControl("form1").Controls.I have previously done such validation by looping through controls via form1.controls but this is unavailable as the page uses a form passed down via the master page.
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Oct 12, 2011
I have small lightswitch application having CreateNewUser Screen.Screen fields comes from Datatable added in DataSource, I have made all Validattion of fields at DataSource side.However i have added one Custom Control in the screen named : Re-TypePassword.Whenever user click on save button I want to match the Password and Re-TypePassword and want to prompt user a validation message if Password and Re-TypePassword are different.how can i display that validation massage ? ( I mean i want to add validation message to Summary of messages that appears at the top of screen)
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Apr 15, 2011
Windows 7 Home Premium X64 Visual Basic 2010 Express SP1 All Visual Studio updates installed except for a Visual C++ security update
The problem:Sometimes message boxes in a console app close after clicking the ok button on one before all the messages are displayed. It is just supposed to display one message box after another. Same code as above, A message box in a console app will sometimes minimize to the taskbar before displaying all the messages after the OK button is clicked on The same code as the above 2 problem but in a Windows form app will display all of the message boxes, But.sometimes won't show the form at the end like it should.
The bugs I know happen when I run the programs from VB itself, don't know about the EXE outside of VB.I know it isn't my code because others have tried it and had no problems.What can I try to fix it?EDIT: Code for the one with the button and form:Public Class Form1
[Code]...
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Mar 25, 2011
I have an application with a DataGridView and WebBrowser controls. In the DataGridView I load a DataTable using BindingSource. DataTable is just a list of URLs. I use SelectionChanged event on the DataGridView to load a selected URL in the WebBrowser control. The problem I have is that when I minimize form to the tray, it for some reason triggers SelectionChange event multiple times. What's really weird is that if I minimize to the taskbar SelectionChange event doesn't get triggered. It also doesn't get triggered if I load URLs directly to the DataGridView. What triggers SelectionChange and how to get rid of it?
Public Class Form1
Dim URLTable As DataTable = New DataTable("URLs")
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim URLColumn As DataColumn = URLTable.Columns.Add("URL", GetType(String))
[Code] .....
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May 16, 2011
My goal is to have the user be able to click the row and the row will be the selected row almost like having the select button but the entire row clickable to do the same thingthe error i get popups when i click the row, not when the webpage is loaded
this is the onrowdatabound portion i just added that causes the error
If e.Row.RowType = DataControlRowType.DataRow Then
' Get reference to button field in the gridview.
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Oct 19, 2009
I am doing an application where a person can enter a string in a text box. The application reverses it. That all works fine.
I am trying to set up an if statement where if nothing is entered in the box and Submit is clicked, a message box pops up and tells you that the box can't be empty. The message box pops up fine but when the user clicks on ok to close the box, another blank box pops up. How do I get rid of the blank message box?
[code]...
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Oct 6, 2011
I am doing an application where a person can enter a string in a text box. The pplication reverses it. That all works fine.I am trying to set up an if statement where if nothing is entered in the box and Submit is clicked, a message box pops up and tells you that the box can't be empty. The message box pops up fine but when the user clicks on ok to close the box, another blank box pops up. How do I get rid of the blank message box?Code is as follows:
Private Sub btnReverse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnReverse.Click
If String.IsNullOrEmpty(txtInputStr.Text) Then
[code].....
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Jul 4, 2011
okay so I have a simple code to generate card picks and store them in numbers except no two cards can be the same so my checkIf functions checks it against the current list. Also no four a values can be the same since there are only 4 cards of the same type in a standard deck. Now the problem I am having is that when I run my code I only get two message boxes when I believe I should be getting 30 - (15 a's and 15 b's).[code]
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Nov 13, 2009
In the forums over time I have noticed some people talking about Yes/No message boxes, where instead of just having the option of OK, as in
[Code]....
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Apr 1, 2010
iam currently working on my uni project and i have encountered a problem with valadation section.My system displays a message telling the user to input any fields that they have missed out on, listing the name of the field. However as these IF functions are in order the user must input the data in the order of how it is in the code. for example if the "consweight" is inputed and the calculate button is pressed, it thinks that all valadation above it has occured, when those fields are still empty.
[code]...
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Mar 25, 2012
I have an assignment where Im supposed to make a compound calculator which displays interest earned each year (e.g. next 10 years) as well as the total amount for those years. Im having difficulties in writing the code for the calculation.I know the formula and how it works but Im not entirely sure how to use it in VB
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May 4, 2010
In Visual Basic Express, is there a way to format text in message boxes? Specifically, I want to be able to add tabs to align text on successive lines. Currently, I'm just adding a bunch of spaces, for example, see below. I'm using Visual Basic Express 2005.
[Code]...
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Oct 22, 2009
In Visual Basic Express, is there a way to format text in message boxes? Specifically, I want to be able to add tabs to align text on successive lines. Currently, I'm just adding a bunch of spaces, for example, see below. I'm using Visual Basic Express 2005.
If MsgBox("The OUTPUT quantity for Acid Distillate is zero."
& vbCrLf & "WAS THERE ANY ACID DRAINED FROM THIS BATCH?" & vbCrLf & vbCrLf &
"If you need to enter a quantity
[code]......
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Apr 3, 2009
I am migrating my code from vb.net 1.1 framework to vb.net 3.5In my windows application, the base window has some buttons and events are written for the same.I have shortcuts defined for these buttons also, for example: ctrl+d, DEL (keyboard) etc.Now i open a property Grid form on top of my base window for a selected object.Even when the focus is on this property grid, i am noticing that my base window events are firing on pressing those shortcuts.
example:I select some text in my property grid and hit delete button from keyboard. The delete event that i have written for the selected object gets fired and the text is not deleting.I fail to understand why is it happening. It wasnt behaving like this in .net 1.1.In .net 1.1 it would delete the text and only when the focus is back on the base window, hitting Delete would call the event.How do i control such a behavior? Is there some property that i need to set for property grid in .net 3.5 to prevent base window events from firing till the time focus is on property grid form?
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May 8, 2009
how to move info from text boxes on one form to binding source text boxes on another form. I am displaying array info in text boxes on one form and i need to add them to the database on another form. How do I do that?
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Nov 2, 2009
I need to assign code to a button, that when clicked on, validates an ISBN code, and displays a message that it is either Valid or Invalid. I basically need help transforming code used in a console application that will now be used in a windows form application, so no more writeline stuff, now message boxes. [code]
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Oct 31, 2009
I can't rename my text boxes, it gives me an error message" The name txtjeffSales is already in use by another component. But I just created the project aand there is no way that anything else has that name, even if I try slight variations of that name it just won't let me do it, wtf is going on here? Attached image(s)
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Oct 25, 2010
How I can do timer to do some different things every time?
For example:
*my Intervel is: 2 mins
after 2 mins (first time):
MsgBox("1")
after 2 mins (Second time):
MsgBox("2")
after 2 mins (Third time):
MsgBox("3")
and etc....
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Apr 25, 2012
My app consists of some text boxes which use msg boxes on invalid input. How can i replace these msg boxes with balloon tips that will appear under each text box on invalid input.
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Dec 17, 2009
I understand that currently vb.net message boxes support buttons like ok,cancel,yes,no,abort,retry.but i am wondering how do i customize my own message boxes such that i can rename the yes,no buttons to any text like delete or discard.
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