Use Single Requiredfield Validator For Two Or Three Textboxes In Asp.net?
Dec 6, 2010How to use single requiredfield validator for two or three textboxes in asp.net ?
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Save Multiple Textboxes In A Single .txt?
Dec 4, 2011ok i need a code to save multiple textboxes in a single .txt..
EX:
TextBox1.Text = ("Michael Rittenburg")
TextBox2.Text = ("United States")
TextBox4.Text = ("Nashville")
TextBox3.Text = ("Tennessee")
TextBox5.Text = ("37203")
Multithreading - Single WinForm Displaying Two TextBoxes
Jun 15, 2010Here's the setup: I've created a class that represents a temperature and humidity monitor. This class handles all of its own operations (connects to the monitors via TCP, reads the temperature and humidity values at set intervals, logs the data, sends email notifications, etc.). I've got a single Windows form that has two textboxes for displaying the values of temp and humidity. When I start the application, I simply instantiate an object of this class and let it do its thing. Every five minutes, it opens up a socket connection, pulls in the data I want, sets the Temp and Humidity properties of the object to the values it obtained, and fires a DataUpdate event which is captured in an event handler in the Windows form.
When this event occurs, the textboxes on the form are updated with the values from the Temp and Humidity properties of the object. Works like a champ. However, I've been playing around with multithreading. Since a disconnected device will cause my entire application to block when it tries to connect, I decided to place the socket connection/data acquisition method into a separate thread. If it can't find the device, no big deal -- at least it doesn't lock up my UI. This thread is instantiated and started inside the object code, NOT the Windows form.
Here's my question, the socket connection/data acquisition method is run inside this new thread and sets the properties of the object when it's done. So, why do I get an illegal cross-thread exception on my Windows form, now, when I try to update the textboxes? It seems to me that the instance of the monitor class is running in the same thread as the Windows form. I only employ a separate thread when I want to run the socket connection/data acquisition method. Is my understanding flawed? I can display the updated property values in message boxes that are called from the Windows form. I just can't manipulate the textboxes.
Databinding To Multiple Textboxes With Single Data Source?
Oct 17, 2011I'm working on a program that is interacting with a simple Access database. When the form loads there need to be multiple text boxes that are bound to the same table and field in the database, Inventory_Table.Quantity, to display the quantity of the inventory. From there, orders are read into the system adjusting the inventory as necessary.
I need to specify what row these are each supposed to be bound to, because right now it is binding them all to row 0, which makes sense but is not what I want. Is this possible? Heres the code I have to bind currently.
txtTopQuantity.DataBindings.Add(New Binding("Text", myDS, "Inventory_Table.QUANTITY"))
txtLegQuantity.DataBindings.Add(New Binding("Text", myDS, "Inventory_Table.QUANTITY"))
txtFastenerQuantity.DataBindings.Add(New Binding("Text", myDS, "Inventory_Table.QUANTITY"))
txtShortQuantity.DataBindings.Add(New Binding("Text", myDS, "Inventory_Table.QUANTITY"))
txtLongQuantity.DataBindings.Add(New Binding("Text", myDS, "Inventory_Table.QUANTITY"))
txtWheelQuantity.DataBindings.Add(New Binding("Text", myDS, "Inventory_Table.QUANTITY"))
Save Multiple Textboxes To A Single File And Load Each One By Itself?
May 28, 2010I have a sign up sheet that I am working on for instance;
username
password
street address
city
state
zip
I've been trying to save the textboxes individually but when I go to load the information everthing is pushed all into one textbox.....I'm also using the SaveFileDialog and OpenFil
Saving Information From Multiple Textboxes To Single File
May 28, 2009I am trying to get the information inputted from multiple textboxes to save to a single text file.
Here's what I got.
Private Sub btn_done_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn_done.Click
Dim FILE_NAME As String = "C:UsersTrevorDocumentsDraftAC est.txt"
Dim i As Integer
Dim aryText(2) As String
[Code] .....
Validate Two Textboxes At Single Button Click Using Program?
Nov 22, 2010How to validate two textboxes at single button click using vb.net ?[code]...
View 3 RepliesControlling Multiple Textboxes From Single Function - Passed In By Reference?
May 1, 2011Is there a way to write a single function that will control validating the input to any textbox? How to pass control of it.
E.g.: My second try was to:
Dim CurrentTextBox As TextBox << Declare a global
Write a function that uses the global textbox and takes in 2 parameters, one determining the length it has to validate and the second telling it what to do once the input is verified
Public Sub ConfirmInput(length As Integer, which As Integer)
If (CurrentTextBox.TextLength < length) Then
CurrentTextBox.BackColor = vbRed
GoTo DONE
ElseIf (CurrentTextBox.TextLength > length) Then
CurrentTextBox.BackColor = vbRed
[Code] .....
My first try was to pass a textBox parameter to the ConfirmInput function but I believe that's the same problem as above.
Getting The Right Angle Validator?
Oct 10, 2010I am writing a program that needs the user to input three numbers (i.e. sides of a triangle) and based upon those numbers tell the user if the numbers they enter represent a right triangle or not. how to go about this mathematically and care to offer any suggestions on the syntax of the calculations.
View 19 RepliesAsp.net - RegularExpressionValidator Or No Validator At All (just A Label)?
Feb 13, 2010suppose I have a boolean function in my ValidationClass that checks user input for txtState (a textbox that contains the 2 letter abbreviation of a state), what should I put inside the if statement to activate Validation Summary displaying that user input for the state textbox is bad?
if isState(txtState.txt) = false then
' not sure what goes here...
end if
Create A Custom Validator In VB?
Feb 15, 2012I just have this program that validates if the selected file is an excel file, and I want this to have a separate function for validation so I can use that function to other program
View 13 RepliesRegular Expression Validator In Vb?
May 17, 2011I have a textbox which takes as input the email address. Do you have regular expression validator in vb.net so that I can check if '@' is present or not in the string
View 2 RepliesUse A Validator To Compare 2 Text Box?
Apr 27, 2009I want to use a validator to compare 2 text box in such a way that ,
If V is in Text box 1, means User must type any of the numbers prefix V in Textbox 2 (V00001 to V00050).Other than V ,if they type any other Letters means error message must be shown.
Just like that if C is in TextBox 1 means user must type C00001 in TextBox2.(or any number from C00001 TO C00050) iF S is in textbox 1 means,User must Type S00001(S00001 TO S00050)
Client Side Barcode Validator App
May 28, 2009I want to have a Windows application. It should take data input via RS-232 or via USB from a barcode scanner that reads 3 of 9 barcodes. The data received must be validated against a CSV file on the local harddisk and the result sent back to the scanner. I need this application including source. Does anyone know such a tool?
View 2 RepliesCommon Validator Module For Textbox?
Mar 19, 2011I have started developing in vb.net 2008. I want to make a common module to validate all text boxes of my every win form. Common Validation I'm looking for are Length ( Size ) of text box value must not greater then that of field size, It must be of numeric, or alpha only, It must not be empty, if single quotation mark, covered with double quote mark etc.
View 5 RepliesUse A Validator To Validate That The Dropdownlist Is Enabled?
May 10, 2009i would like to use a validator to validate that the dropdownlist is enabled and the dropdownlist value is "None".if this two conditions being meet,the validator will display error message.May I know what validator should I use?
View 2 RepliesValidator Summary Will Not Update Dynamically
May 17, 2011I have a validation Summary I am using for the RequiredFieldValidators to use to show the error messages while an image shows up next to the controls being validated.I have set the required field validator to Display="Dynamic". When I select something in the dropdown it removes the image next to the control right away like I want but the errormessage text stays on the ValidatorSummary.What can I do to make the ValidatorSummary to update dynamically like the RequiredFieldValidator when it removes the image next to the dropdown?
View 1 RepliesAsp.net - Custom Validator Validation Not Firing For Textbox?
Jun 14, 2009I have created a custom validator for maximum characters for a multiline textbox in ASP.Net.Below is the code that I am using.
[Code]...
Asp.net - Limit Input Of Regular Expression Validator?
Jan 19, 2012I'm currently coding a ASP.NET web application using VB.NET. I'd like to know how to limit the input of the regular expression validator to numbers only (with specific number of digits e.g 7-20 digits).
View 3 RepliesHow To Disable Few Selected Required Field Validator
Oct 5, 2007I 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] .....
Number Validation In Required Field Validator?
Sep 8, 2009Is it possible to put Number validation in required field validator in asp.net text box?
View 7 RepliesRegular Expression Validator In .net/asp.net Custom Expressions?
Apr 19, 2011I want to make sure using the custom expression validator that no ' or " can be used i tryed using [^"'] but whenever i put normal letters it doesnt work either.
View 1 RepliesValidator Or Expression To Check If The Value Entered In That Textbox
Sep 24, 2009I am using vb.net. I am having below code in vb.net
[Code]...
Now I want an set validation for mandatoryto the textbox TokenStartingNumberTextBox only If the user had entered the value in DateOfReceivingTextBox.
Asp.net - Custom Validator Not Firing (No Error Message, But No Validation)?
Jan 17, 2011I 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.
Asp.net - Validator Disappears On PostBack Inside Composite Control
Jul 17, 2009This should be a simple problem to fix, as it uses the same way I fixed my last problem with FooControl (below).
Basically, I want to add a derived validator I made to this composite control. It works fine but on postback it just disappears in the markup, making me think it's lost its ViewState.
I am probably doing something wrong with instantiating it, but I've tried setting only the ControlToValidate, moving things around, and nothing works.
I've provided some surrounding code to see what's working and then what's not.
Private FooControl As IFooControl
Private Validator As MyValidator
Protected Overrides Sub CreateChildControls()
[Code].....
Create A Validator That Checks To See That If Both Players Have Entered A Nickname?
Jun 7, 2012First of all I'm trying to create a validator that checks to see that if both players have entered a nickname. If they don't then it should automatically close the form but instead the application hangs. If the first player uses three tries then it "should" automatically close. Here it is:
Sub getNickNames(ByVal Players() As String)
erCount)
'Force Select Username. If More Than 3 Attempts Are Made The Game Will Exit To The Main Menu
[code]....
Custom Validator OnserverValidate Call Class Function?
Mar 9, 2011I am trying to call cetralized class function ONservervalidate for a custom validator, So I don't have to write it on each and every page.
View 1 RepliesAsp.net - Regular Expression Validator - Display Block Rather Than Inline When Dynamic?
Oct 14, 2010Is there any way to make a RegularExpressionValidator render itself using display:block, instead of display:inline in its style attribute, when setting the Display property to "Display='Dynamic'"?
I have tried setting it in the stylesheet but this gets overwritten when it is rendered on the page.
C# - Javascript Textbox Validation Fires Custom Validator Error Regardless Of Value
Oct 24, 2011I am trying to validate a textbox based on a dropdownlist, e.g. if ddl value is 'Day', textbox value cannot exceed 31. It seems that no matter what I enter triggers my custom validator error, what am I doing wrong,
<asp:TextBox ID="uitxtCamLastVisitDur" runat="server" CssClass="tooltip"
Width="65px" Enabled="False" ToolTip="Indicates a required spending on the member's last visit."></asp:TextBox>
[Code].....
Pattern For Asp.net Validator That's For A Phone Extension Field On Entry Part Of Page
Feb 18, 2010I need a pattern for an asp.net validator that's for a phone extension field on the entry part of the page. I need it to allow a single digit up to 5 digits. I was able to use this pattern "d{5}?" until the requirements changed to "up to 5 digits" on me.
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