Error Provider To Check Control Validation Until Save Event

Jul 15, 2009

I am writing a User Control. Into each control I am loading a custom biz object. Because the biz object implements IDataErrorInfo interface I am able to use the ErrorProvider control on the user control.

I am binding the ErrorProvider to the biz object like this:

Me.ErrorProvider1.DataSource=MyBizObject This is all working perfectly EXCEPT. The validation is happening (and therefore I am displaying the blinkey error signs next to all feilds) as soon as the User control is loaded into the host form.

Each biz object implements a SAVE method and I want the validate to not happen until the save event is triggered on the biz object.

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Textbox Validation Check When Save Or Update Button Click

Oct 11, 2010

I use VB 2008. I want to check that text boxes have correct data but not at key pressed key down event. I want to check when user fill the form if all have correct data then insert into database otherwise get focus of specifiq textbox which have wrong data. I see many examples but all is applied on keydown keypress etc events. I just need a class i send Textbox as object in that which return true or false. I need one method in that class which check only numbers with decimal point and limit decimal places to 4 digit.e.g 12345.9876 and other method check A to Z and a to z with some special charecters like @ # $ % & ! ;

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Forms :: Take The Control Back To Textbox After Display Error By Error Provider Tool

Feb 3, 2010

I used error provider tool to display the error when the textbox is empty. when the error message is displayed immediately it is inserting the record into the database.I want to clear the error and then insert. how to take the control to textbox?

[Code]...

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Forms :: Take The Control Back To Textbox After Display Error By Error Provider Tool?

Mar 31, 2011

I used error provider tool to display the error when the textbox is empty. when the error message is displayed immediately it is inserting the record into the database.I want to clear the error and then insert. how to take the control to textbox?..Imports System.Data.OleDb

Public Class Form1
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand

[code].....

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Validate Input - Fancy Error Provider Control

Jun 19, 2009

I'm working on my first VB.NET 2.0 WinForm app. I'm trying to validate some input and I came across this fancy Error Provider control that seems great. However I have a problem with it. It seems that it only validates a field when it loses focus. I'm used to Web Form programming and using validation controls on it, but I don't see these in WinForms.

[Code]...

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VS 2008 SQL Provider Named Pipes Provider Error 5 Invalid Parameter S Found

Aug 3, 2011

i have 2 computers - a Server and a Client pc which is running on local area network with MICROSOFT SQL SERVER 2008 R2 Developer kit at the main pc and Client computer will need to connect to SQL SERVER at main pc using connection string.Let me named server computer as 'MAGNA-PC' and the client pc as 'LAC-PC' and database name is 'db_referafriend' so the code for MAGNA-PC(server) connection string is:[code] i GOOGLE and YOUTUBE for almost 2 weeks before i post . I know that i need to configure the sql configuration manager and enable tcp/ip also add a new port at firewall to allow remote connection also add the sqlserver.exe and sqlbrowser in firewall and I have also chosen "Using both TCP/IP and named pipes" under Remote Connections in the SQL Server 2005 Surface Area Configuration. and all of this doesnt work!

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Asp.net - Add A Javascript Validation To Each Dropdown Control In A Grid In RowDatabound Event

Nov 8, 2011

I am using a template field in a GridView. The template field is a dropdown list that is generated dynamically in the RowDataBound event.

How can I add a Javascript validation to each of those dropdown lists when they're created?

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.net - Validation Summary Control ASP.NET Program Output Error?

Aug 3, 2011

I am executing this validation summary program in Visual web developer 2008 express edition, found the validation summary property is not visible in output.

<div><asp:ValidationSummary ID="sum1" runat ="server" ShowMessageBox="false" HeaderText="You details cannot be processed due to following errors:" DisplayMode="BulletList" ShowSummary ="true" Font-Names ="arial" Font-Size ="12"></asp:ValidationSummary>
<asp:CompareValidator ID="cmp1" runat ="server" ControlToValidate ="txtname" Display="Dynamic" Operator="DataTypeCheck"

[code]....

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Event For Check Box In DateTimePicker Control?

Aug 24, 2009

I 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.

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Validation Check Involving ASCII?

Mar 14, 2012

i'm new to this site and i'm hoping there's someone out there that can help me with this problem. I'm doing a course in visual basic 2010 and having real trouble understanding some aspects of it. Here goes -

I need to do a validation check on a users inputed string. The users input is called Test_data and it needs to be exactly 10 characters long and must only use the letters " a " to " f "

I know to check that the string is exactly 10 characters long by the Len function, and i have that working.BUT - how do i check whether the users inputed string uses the letters a to f ? I thought it would involve something to do with ASCII, but i would have no idea how to form a validation check using ASCII.

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Validation - If The Field Value Is Changed, A Query Check?

Nov 12, 2009

I have a problem with the Validation of a Integer-Field in my application.Its an Access DB on a Windows Form.I implemented the validation in DataSet.vb using an ErrorProvider on my Form.The field name is FNr and should not accept duplicate numbers.If the field value is changed, a query checks if the number already exists in the Datatable and if so it sets the error on that field.If the user tries to change the field to a number which is a duplicate I want to cancel the input back to the original number. This works but the

Error message is still shown by the ErrorProvider.The code is partially in DataSet.vb and in Form.vb

Public Class Funktionen
Private Sub FunktionenBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FunktionenBindingNavigatorSaveItem.Click
Me.Validate()[code]......

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.Net Error Provider 1 Message Error

Nov 29, 2009

When I run the code, type a value in quantity and hit the calculate button I get an error message stating, "Quantity must be a numeric value" and I don't see in the code what I have missed. I thought I set quantity as a numeric value by making it an integer and parsing it.

Private Sub calculateButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles calculateButton.Click
' Calculate subtotal
Dim subtotalDecimal, amountDueDecimal, shippingDecimal As Decimal

[code].....

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Error Messsage From The Provider: Bad Data?

May 4, 2010

My program in VB.net has been using in 4 years already. I coded it in my computer and run in other computer. It's modified several times and it still woked fine. Today, I modified it again. It works well in my computer, but when I run it in other computers, I got an error:

" Failed to decrypt using provider 'RsaProtedtedConfigurationProvider'. Error messsage from the provider: Bad Data."

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Error Provider On A DatagridView Cell

Feb 11, 2011

I created a DataGridView called grid_LivingBenefits.Each time a cell is going to be edited, the program will validate that cell.Now, I have two subroutines that take care of that validation.these are: ValidateDataType() and ValidatePrimaryKey()

at the DataGridView CellBeginEdit, the program checks for which cell the user is editing.at the DatagridView CellEndEdit, the program calls the subroutines for validation. If an input is invalid, I want the program to show an errorProvider on that cell.I used MessageBoxes first to check whether the validations are working and I got no problem there. but when I tried to use errorprovider instead of a messagebox, there's a blue zigzag line under the grid_LivingBenefits.CurrentCell

[Code]...

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Sql - ASP ERROR - Keyword Not Supported: 'provider'

Sep 29, 2010

My app fails at this line of code:

Dim objConnection As New SqlConnection(Application("ConnString"))

My connection string is: [Code]. I googled this problem and the solution for it was having a malformed connection string where the "provider" was being specified when it shouldn't have. Example conn string: [Code]. I'm not specifying the Provider so I think I have a different problem.

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2008 - Error Provider Flashing Between The Various Boxes

Mar 3, 2009

First attempt at using the error provider, I've set this up for each of the five text boxes I have on my form, when I click the button it shows the error provider flashing between the various boxes if I leave them all empty. Ideally I'd like the form to show the symbol next to the box thats empty, click the button and remove it from those which are correct leaving only the incorrect text boxes with the symbols. Any thoughts? [Code]

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Error Provider To Pop Up Whenever A Textbox In My Groupbox Is Empty

Feb 11, 2009

When im using a loop in my program and i'm trying to use an Error Provider to pop up whenever a textbox in my groupbox is empty for some reason I cannot get it to work, can anyone tell me what i'm doing wrong?

For Each ctrl As Control In GroupBox1.Controls

If TypeOf ctrl Is TextBox Then
If CType(ctrl, TextBox).Text = "" Then

[CODE].............

I'm not receiving any type of error, it's just that when a textbox is blank the error provider is not doing anything.

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Timer,Error Provider And Image Button

Jul 8, 2010

i have a picture box which in this case is my button , when i press my button(picbox) i want it to check if the error provider has got any errors and if it hasn't any errors i want it to start timer2. when i press it i get errors with the provider and after some seconds the timer2 starts.

[Code]...

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VS 2008 Cross-thread Error, Change Control Property By (other) Class Event PropertyChanged?

Apr 1, 2010

I need some help to understand my options to get this working. I try to update a textbox control by a property-changed event from a class variable. I've digged around for a day and have a vague understanding that this can be solved in three ways:

1. Using some "if InvokeRequired", "Invoke" code in the handler method
2. By programming a special delegate class for this variable
3. By using a databinding directly linking the control (textbox) to the class event

Now.. Are these options correct? And would it be possible to get some help to show these three solutions in actual code (relevant to mine)? I can't seem to manage to sort all the information to a working code. Also, what are the pros and cons of the different solutions?

As my code stands now, it's obviously none of the above, as it gives a cross-thread error, as indicated.

[Code]...

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'Provider' Attribute For ADODB.Connection Results In Error

Oct 24, 2010

I'm trying to set up a database connection between an ASP page running VBScript, and I have found code to do this. However, the 'provider' attribute to the connection does not work. The code is below:

set conn=Server.CreateObject("ADODB.Connection")
<strong>conn.Provider</strong>="Microsoft.Jet.OLEDB.4.0"
conn.Open(Server.MapPath("mIndexDb.xls"))
set rs = Server.CreateObject("ADODB.recordset")
rs.Open "Select * From mIndexDbTable", conn

[Code]...

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IDE :: ClickOnce Signing Error: Invalid Provider Type Specified

Oct 15, 2010

I requested a Code Signing Certificate from my own domain Certification Authority on my Windows 2008 R2 domain controller.

When trying to publish my code to my webserver via Clickonce, it throws "an error occurred while signing: Invalid provider type specified"

In order to get the certificate I duplicated the Code Signing template on my CA, and tried both options available:

1) must use Microsoft Software Key Storage Provider

2) use any provider available locally

algorithm is RSA, key minim size 2048, Hash SHA1, alternative format unchecked

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Radiobutton Image Hover And Error Provider Errors

Jul 7, 2010

i have a 3 radio buttons and a picture box.i have coded then picture box when a specific radio button is clicked it loads up a picture, and i want to make this picture change when you hover it but ONLY for that specific picture box. i have typed a code to make this work but it gives me errors.

If RadioButton1.Checked = True Then OnMouseEnter(picturebox1.Image = Windowsapp1.My.Resources.image1)

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Control Array - Add New Event - Click Event Code And Calling It A Doubleclick Event

Jul 31, 2010

I've read thru Iceplug's tutorial on control arrays and got it working. I tried to add a new event by basically copying his click event code and calling it a doubleclick event. I used the proper addhandler and assigned the correct name to my sub. I have the click event changing the background color to blue and the doubleclick event changing the background color to green. The background color does not change to green. Why?

Heres the tutorial with my new code encased in asterisks ...

Code:

Imports System
Imports System.Windows.Forms

Public Class form1

[CODE]...

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CurrentCell To Remain The Same If Validation Fail - CellEndEdit Event

Apr 29, 2011

I have a datagridview for user's input. For example, the columns are "Name", "Date of Birth"... For the "Date of Birth" part, i have implemented validaion... i want to make it that user have to enter a valid "Date of birth" before they are allowed to leave the Cell. Meaning once them entered the Cell, they have to provide a valid "Date of birth" then they can move on.

[Code]...

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Show Validation On Button Click Event When Have 200 Checkboxes?

Jan 28, 2011

How to show asp.net validation on button click event if i have 200 checkboxes and some of the checkboxes would be disabled and some are unchecked ... if user doesn't check any of the checkbox then asp.net validation control will display and user will be stay at the same page until they check any of the unchecked checkbox ..

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VS 2005 Text Validation - Check If The Number Entered Is Valid Or Invalid

Nov 18, 2009

I am trying to mkae sure that there has been 16 numeric digits entered into the masked textbox. If not show errror message and if so to call the fucnction ValidateLuhn. When calling Validate Luhn i want the program to tell me if the number entered is valid or invalid using the code in the function:

[Code]...

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Error Of The 'Microsoft.Jet.OLEDB.4.0 Provider Is Not Registered On The Local Machine?

Nov 26, 2010

I'm Connecting VB.NET 2008 and MS ACCESS 2007 using this code.

LocalConn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|inDebugDatabaseDatabase.mdb;Persist Security Info=True")
LocalConn.Open()

But it always return an error of The 'Microsoft.Jet.OLEDB.4.0 provider is not registered on the local machine.Im using Windows 7 Home Premium 64 bit.

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CryptoAPI Cryptographic Service Provider (CSP) For This Implementation Could Not Be Acquired Error?

Oct 1, 2010

I have a vb.net application running .Net 1.1. for users to login in the login page has to decrypt the user login information. However, when I try to nitializeSACryptoServiceProvider, i get CryptoAPI cryptographic service provider (CSP) for thisimplementation could not be acquired error.

Initializing Method
Public Sub AssignParameter()
Const PROVIDER_RSA_FULL As Integer = 1

[code]....

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Error - The 'Microsoft.Jet.OLEB.4.0' Provider Is Not Registered On The Local Machine

Dec 17, 2009

I am trying to link to a database. I have checked on my machine and I do have Msjet40.dll on my system?

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Error : Microsoft.jet.oledb.4.0 Provider Is Not Registered On Local Machine?

Mar 30, 2011

i have an VB.Net 2003 Application Program that use MS Access, that works fine in Windows XP and Windows7. But when i create that same program to VB.Net 2005 Application Program that use MS Access.it works fine in Windows XP. but in Windows 7 it shows this error Quote:microsoft.jet.oledb.4.0 provider is not registered on local machine

[Code]...

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