Create An Import Program From CSV - Error "An Item With The Same Key Has Already Been Added" - Csvreader.fieldcount
Sep 8, 2010I'm trying to create an import program from CSV. My code is
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Asp.net - Error: An Item With The Same Key Has Already Been Added
Dec 23, 2011Public Enum ERight
ECanInvite = 0
ECanCreate = 1
ECanDelete = 2
etc...
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This below sub, on rights.add, sometimes throws this error: An item with the same key has already been added.
Private Shared rights As Dictionary(Of ws_garuda.EUserType, List(Of ERight)) = Nothing
Private Sub initRoles()
rights = New Dictionary(Of EUserType, List(Of ERight))
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Getting Program To Automatically Calculate The Subtotal Every Time An Item Is Added To The Shopping Cart List
May 1, 2012I am working on a project for a class, and am having trouble getting my program to automatically calculate the subtotal every time an item is added to the shopping cart list. I've tried sub procedures and functions, but I can't seem to get it to work.
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When Users Select Each Item Another Item Will Be Added To Second Listbox But It Is The First Selected Item
Jul 5, 2010In my application I have a listbox and SelectionMode should be MultiSimple because users need to see which items they selected. In another tab we have another listbox this one should show all the selection users had done in first tab. Private Sub
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VS 2008 - Code Error On Tax Calculating Program - User Enters The Item Name And Amount Of The Item Purchased
Feb 9, 2010So i've to write this program whose purpose it this:
Purpose: The user enters the item name and amount of the item purchased. The program calculates the tax for the item and the final total, and then displays these values. Tax on all items will be 7.75%.
And so far i've this code but it's not working:
' Program: Cash Register
' Author: Nidhi Shah
' Date: February 2, 2010
' Purpose: The Cash Register Window application will
' computer the tax and the final cost of a
' purchased item.
Option Strict On
Public Class frmCashRegister
' Tax per item - used in multiple procedures
Const _cdecTaxPerItem As Decimal = 0.0775D
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MS Access Adodb In NET Returns 34 In Fieldcount When Table Has 42 Fields
Apr 12, 2010Why MS Access adodb in .NET returns 34 in fieldcount when table has 42 fields ?I see 42 fields in table of my MS Access mdb database. But ADODB layer in .NET sees only 34 fields. The Outofrange exception occures when I am calling method getOrdinal("FieldName") of reader class.
View 1 RepliesIf The Program Catches An Error With The Current Listbox Item To Move On To The Next One?
Aug 23, 2009I have some items in a listbox and a try catch. I need it where if the program catches an error with the current listbox item to move on to the next one.
View 18 RepliesHighlight Item After Added It To A Listview That Contains Other Items
Jan 25, 2010how can i highlight my item after i added it to a listview that contains other items.
View 6 RepliesKnow The Event Name For A Listview That Happens Every Time An Item Is Added
Jun 9, 2011i am using vb.net 2005 and i want to know the event name for a listview that happens every time an item is added.
View 1 RepliesListBox Show Latest Item Added?
Jan 17, 2008I have a ListBox that is only about 4 lines high. After I add more than 4 Items, it attaches them to the bottom of the list outside of the viewable area with out scrolling. Is there any way to either add items to the top of the list or make the latest item visible? I want to keep all the items in the list in the order they were added whether it is oldest to newest or newest to oldest.
View 8 RepliesVS 2008 - Removing Same Item Added Twice In ListView?
Dec 14, 2009How would I remove files that are already added into the listview?
View 12 RepliesItem Cannot Be Added To A Read-only Or Fixed-size List?
Jun 11, 2010I have two datagridviews in my app. They're related. When there is no record in the parent datagridview, I select the "New Row" and then press the Add Button in the child datagridview's bindingnavigator. Then I get that exception:
InvalidOperationException: Item cannot be added to a read-only or fixed-size list.
I know why this happens.When I add new record to child datagridview, parent datagridview's new row loses focus and then delete row. So this error occures.How do I prevent my program from this exception. Remember, it's only occures if there is no record in the parent datagridview.
Add Item To Generic List Change Value Of All Previous Added Items To Last?
Oct 27, 2010I'm writing code some that is supposed to be creating a list of objects pulled from a data base. The list returned has every item containing the value of the last one added. When I debug the code is VS2008 I can see each time that the list.add is performed every other item in the list being changed to the one just added. Here is the code I running. The line containing ListAKAs.Add(itemAKA) is the one where the entire list of objects is changed to be identical to the one just added.[code]....
View 1 RepliesToolstripmenuitem - Add An Onclick Event For Newly Added Menu Item
Aug 24, 2009just want to ask help in terms of adding new menu item onclick event on an existing menu item. I have a window menu (handles all open window forms in the Parent) once a new window opens i used this [Code] but i need also to add an onlick event on all the forms being added, so when they click that sub menu it will open the form selected. My question is how can i add an onclick event for this newly added menu item?
View 1 RepliesHow To Import Crystal Report - Adding New Item
Feb 15, 2012I cant seem to see the crystal report in the add new item
View 4 RepliesImport And Declare Item Into A List And Use It On Every Form?
Jul 24, 2011how can I all the import and declare item into a list and use it on every form?
View 1 RepliesUpdate Server Program When Client Program Added Record To Database?
Aug 18, 2010I am creating a very simple Voting System, that will be use on electing new set of officer in a teacher cooperative...
So I have to create two separate program, a Server Program that will manage all the information in the election and a Client Program where voters will vote their selected candidate...
The election officers wanted that the Server Program will display the Voting Results at real time... So when the Voter finished voting, The Voting Result displayed by the Server Program will also be updated every time the Client Program Insert the data to Database....
An action listener in Server Program that will execute if new data is inserted in a Table in the Database made by the Client Program...
Create A Error Hanlder For A Program?
Sep 12, 2010im wanting to create a error hanlder for a program im doing.back when i used vb6 when a error came up i was able to use error number for example
View 2 RepliesItem From Toolbox To Import And Make Excel Files?
Mar 9, 2010i have a datagrid view, how can i use this or another item from toolbox to import and make excel files? if possible, include some coes that will make it work,I like...Understandable Answers
1 2 3 4 5
- - - - - Rate yourself And Have A Kitkat
5 5 5 5 5
C# - ObservableCollection Doesn't Support AddRange Method - Get Notified For Each Item Added Besides What About INotifyCollectionChanging?
Mar 22, 2009I want to be able to add a range and get updated for the entire bulk. I also want to be able to cancel the action before it's done (i.e. collection changing besides the 'changed').
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Create A Log Of The Records That Have Been Added Into The Table?
Apr 8, 2012i have a datagridview with (a lot of) rows. With a click of a button I add them into a table. Everything works fine. I want to create a log of the records that have been added into the table.
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Error - Create A Class Called Invoice - Hardware Store Use To Represent An Invoice For An Item Sold At Store
Apr 15, 2012"Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces of information as instance variables--a part number (type String), a part description (type String), a quantity of the item being purchased (type Integer) and a price per item (Type Integer). Your class should have a constructor that initialize for each of the four instance variables. Provide a property for each instance variable. If the quantity is not positive it should be set to zero. If the price per item is not positive it should be set to zero."
I attached the code I have. obj is underlined and says "Argument not specified for parameter 'Invoice4' of the 'Public Sub New (Invoice1 As Object, Invoice2 As Object, Invoice3 As Object, Invoice4 As Object)' and so the program won't run. What am I doing wrong?
Public Class Form1
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim obj1 As New Invoice(Val(TextBox1.Text))
TextBox1.Text &= obj1.Invoice1 & vbNewLine
TextBox1.Text &= obj1.Invoice2 & vbNewLine
TextBox1.Text &= obj1.Invoice3 & vbNewLine
TextBox1.Text &= obj1.Invoice4 & vbNewLine
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Create A Payment Schedule On New User Added Sql?
Aug 15, 2011how would I go about creating a payment schedule based on a date and a number of months 3 or 6 or 12 to then populate the database with reoccurring dates so lets say new user added on 31/10/2011 for 6 months I need the database to add all the dates for the six months
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Asp.net - Error When Added MasterPage?
Apr 22, 2009Server Error in '/' Application.Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEvent Validation method in order to register the postback or callback data for validation. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true" /> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.Register ForEventValidation method in order to register the postback or callback data for validation.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
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Error - A Reference To C:ProgramFilesMyExes....dll Could Not Be Added
Jan 6, 2011I'm trying to learn how to call functions in C DLLs from Visual Basic programs. I'm new to VB but have years of experience in C programming & want my functions to be usable by people who are more familiar with VB.
I managed to create a C DLL & call the functions from a C program. One difficulty I had was that I wanted to put my DLLs in a MyExes directory so I could easily have several unrelated programs call them. It was far from obvious how to tell the compiler & linker to look for the DLL in some arbitrary folder but I eventually found out.
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Now one of my difficulties with DLLs & Visual Basic is how to tell Visual Basic 2010 Express to look for functions in a DLL in some arbitrary folder. I tried to use Project->Add Reference, then in the Browse tab went to the folder & DLL I wanted to use, but got the message box:"A reference to C:ProgramFilesMyExes....dll could not be added. Please make sure that the file is accesible and that it is a valid assembly or COM component."I've tried to find a walkthrough to take me through the steps of using C DLLs in VB 2010, but so far had no luck.
DataGridView "An Item With The Same Key Has Already Been Added." While Using A Unique Index?
Oct 22, 2010I've looked around and can't seem to find a solution to my problem. I have an EventLog object which inherits DataGridView and has a public variable EventList which is a List(Of EventLogItem). EventLogItem has seven properties which describe the event, including Index which is set to EventList.Count each time an entry is added (so, it should be unique). Everything has worked just fine until I tried to add an entry from a serial port DataReceived event handler upon which I receive the following exception:An error occurred creating the form. See Exception.InnerException for details. The error is: An item with the same key has already been added.Clicking 'View Details' and expanding the InnerException yields no more information. Here is some relevant code:
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VS 2008 Added A COM Control (ocx) In .net Program
Apr 22, 2010I am using a .net program. My program is used by few people and it at times downloads updates automatically.Recently I have added a COM control (ocx) in my .net program. Now when I run the program (with ocx in the folder) it gives an error. When I registered the ocx thru regsvr32, it worked fine. So now my program has to register the ocx. Is there any other way to do that rather than using regsvr32. The reason is the regsvr thing will work fine in Win Xp systems but in Vista/Windows 7, which has higher security, I dont know if regsvr will work ok or give an error or will run in elevated more.What should I do ? Should I stick with regsvr32 for all OS or is there an alternative.
View 10 RepliesProgram Builded With VB6.0 - Run Uncertain Time - Program Will Crash - Oleaut32.dll Error Message (Error Code: 0x00048f9) In Event Viewer
May 5, 2011The program has errorhandle and write log function, however, it could not catch the error message in the program.
The following error message in Event Viewer. Error Module: oleaut32.dll ,version 5.1.2600.5512, error code: 0x000048f9
Error Occurred After Added Report1.rdlc
Jan 30, 2012Error 2
A field in the dataset 'DataSet1' has the name 'Purchase Price'. Field names must be CLS-compliant identifiers.
C:UsersAdministratorDesktopNHSLib(NEWEST)NHSLibReport1.rdlc
NHSLib
Error When User Controls Added In 2 Different Forms?
Aug 21, 2009I have created a datagrid of my own in vb dotnet and converted to dll. I add this dll to a project.i have 2 forms and i have added this control on 2 forms. When i run the project and open 2 forms simentaneously an error " reference not set to an instance of an object" occurs on acess of any property of that control.
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