VS 2005 Ambiguous Forms / Objects
Jun 9, 2009
I was working on one of my forms, not doing anything crazy or out of the ordinary, just adding a control to the form. When all of a sudden vb became real sluggish and barely responsive, so I closed VS and restarted the computer. Got back into my project and now I can't open any form. Opening a form gives me <b>failed to parse method 'InitializeComponent'. The parser reported the following error 'Error HRESULT E_FAIL has been returned from a call to a COM component.'. Please look in the task lisk for potential errors.</b>.Error list sometimes contains 102 errors, and sometime just one that says I have exceeded the maximum number of errors. When it contains 102, every single one of the errors is <b> [Object/Form] is ambiguous in the namespace [Project] </b>.
I can't open any designers right now, every single one of them gives the failed to parse method error. If I rename, lets say frmAbout to frmAbout1, then I can see that form.There is only one of everything in Solution Explorer, no duplicates. There are no duplicates in the folder either. I can open the code for each form/object and see it just fine, and looks fine too. Code is not duplicated or anything.
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Oct 26, 2011
I'm having problems with this error [code] I already imported the sqlserver references but it still don't work.
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Jan 23, 2011
I am creating class libraries in my project so that I can update code without having to update the whole app.I created a class library project and added some code to it. I also added a reference to System.Data.SqlClient and also imported it into the class file.I am getting an error and I have never seen it before. Been looking online and not able to find an answer yet.
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Feb 9, 2009
In VB.net how do you retrieve an value from a object in a different form.
eg:
' on frmMain
MsgBox ("Say ""Hello World"" Mr. " & frmOther.txtName.text)
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Dec 29, 2010
If I have a large number of classes, each similar to the other in certain aspects (they all share a common base class, but each does things differently), and I need to create Windows forms for each to allow easy changing of their values through a GUI? Create one matching form for each object in VS' forms designer, Or Use code to create the forms dynamically at runtime.
#2 makes the most sense to me, because a lot of these objects will share very common features of the form, notably "Ok" and "Cancel" buttons. But one object might need to draw a textbox on the form while another might need to draw a combobox. Not to mention, if I want to put icons on the "Ok" and "Cancel" buttons, I'd have to do this for each copy of the form in designer, and that sounds like it could get out of hand quickly.But is drawing forms through code sane? VS' forms designer is pretty sophisticated and designed to make life easier. Am I wise to consider ignoring its functionality and diving into the trench warfare of forms design through code? Or are there examples of automating form creation based on an existing object's properties?
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Nov 16, 2009
I would like to use index of objects in vb6 to upgrade into vb.net, I have seen some topic but I could not do it
For exmaple(in Vb6)
Public Sub Update_PriorMenus()
'This sub read amoun projects and display in menu.
[Code].....
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Dec 19, 2010
In form frmAddPlayers I declare and create an array of pictureboxes in the Load event using the code:
Dim
pbxPlayerJoined(7) As
PictureBox
[code]....
In the watch window the value of the pictureboxes is System.Windows.Forms.PictureBox. Later in the load event I start a background worker in form sfrmUSBDevice using the code:
sfrmUSBDevice.sReadWriteThread.RunWorkerAsync()
The background worker waits for user input and then calls a subroutine from form frmAddPlayers. The subroutine changes the image in the picturebox to indicate that the user input has taken place. However when the debugger returns from sfrmUSBDevice to frmAddPlayers the watch window shows that all of the pictureboxes have a value of nothing. Then when I try to change the image of the picturebox I get an "Object reference not set to an instance of an object" exception. It seems like when the debugger goes to the sfrmUSBDevice form and comes back to frmAddPlayers the objects on frmAddPlayers have lost their information.
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Aug 11, 2010
I'm translating a document management application from vb6. I want to program with good habits and technique, so I'm asking for your opinion really rather than just a solution.I have a decent understanding of OOP, but I'm not very experienced in VB at all. What I'm doing now is trying to figure out the best way to pass objects between forms.For example, in my initialization form, I have an object that stores a group of database connections. I need to pass this object around because reconnecting takes a significant amount of time. There are other objects such as user info and permissions.
Public Class Form 1
Dim DB = New DBobject
Public Sub Form1_Load
[code]......
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Nov 26, 2009
Currently my program randomly removes words from a set of text and inserts textboxes below the text. The user can then enter his/her answers in the new textboxes. What I would like to do is set the program so the user can have two choices one being Easy and other being Advanced. Then when the user hits either button it brings up everything that is currently on the form. I'd prefer to do this without having to use MDI forms. I've had a hard time using the MDI forms and therefore would like to avoid using them. They way I was thinking this could work is all objects would remain invisible except for the 2 buttons and then when you hit one of them they disappear and everything else appears.
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May 24, 2010
I need to dynamically access a bindingnavigator, is this possible? I basically want to have code in my Base form which enables or disables it's descendant's menu buttons depending on access rights.
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May 6, 2010
Can you look at this code? It's a class module that I made so I can make our application more modular.
In the code there are 3 lines of code which have this as part of it: FormBrowseAttendance.ComboBoxLookupStudent.how I can change the coding to refer to this portion of code using these parameters:
pComboBoxName
pNameOfForm
I'm assuming these need to converted is some way but I don't know how to do it.
[Code]...
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Jan 7, 2010
i created a class i invoke the class as object in vb.forms i want bind object(parameters) to datagrid when return as arraylist from methods in form_load. i want to bind arraylist to datagird in form_load.it will bind, the grid show all the parameter from arraylist.but i want few columns to bind from arrylist.here arraylist is convert from list from method.
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Mar 31, 2009
I am having a problem with objects that have other objects as properties on a property grid. Now when I display the object clsPropsFrame on the property grid, everything shows up as expected, except when I try to edit the x, y, or z of location which is of type clsPropsVec3, it ignores the change. What's strange is that when I type the vector in as a string (like "0, 16, 0"), it changes.
I have the following
'//////////////////Object Component///////////////////////////
<TypeConverter(GetType(ExpandableObjectConverter))> _
Public Class clsPropsVec3
Inherits ExpandableObjectConverter
Private refvec As TV_3DVECTOR
Public Sub New()
[Code] .....
I noticed that when I changed a component of clsPropsVec3, the property change in clsPropsFrame does not get executed. I tried making it fire of an event when a component is changed in clsPropsVec3, with the following additional
Public Property X() As Single
Get
Return refvec.x
End Get
Set(ByVal value As Single)
[Code] .....
But for some reason it ever fires off the ValueChanged event. So how can I make the sub properties of clsPropsVec3 work?
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Sep 6, 2009
With VB6 and VB9, I continue to have problems displaying images on a form while playing wav files (either by API call or by My.Computer.Audio.Play method).I set up a loop to display pictureboxes on a form (card images), with a wav sound file that is supposed to be played each time a picturebox is displayed. However the pictureboxes won't display until after the loop finishes and the sounds have been played several times in series:Example
For I = 0 To 3
picBox(I).Visible = True ' picBox is an object collection of pictureboxes
My.Computer.Audio.
[code].....
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Jul 8, 2009
How can we use the database objects from one form to another? Eg. In my Login form a person enters his user-name and password & if it is correct, the code directs him to another form(Form2). Now in Form2 How will I get which person has entered in?
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Aug 21, 2009
how to make buttons and other objects move to the center of the form and possibly grow in size when form is maximized and also move back to its position when minimized.
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Apr 4, 2010
I am hoping that someone from the forum is familiar with the Doing Objects in Visual Basic 2005 book so that this question makes a little more sense. I have completed the sample project and understand most of what I have done. There are some holes in my knowledge but I am sure I will pick up those pieces as I become more familiar with object orientated programming.
The sample project is an almost complete application where you view and edit Objects that are stored in a database. The author leaves the remaining features needed up to the reader, which is great because I have been able to put new knowledge into use. However I am having trouble saving a new object back to the database.
[Code]...
By looking at this code it appears that I can save the data that is in the bindingsource by changing the EntityState to the Enum added. However I am not sure where to set it. I am pretty confident that I have the rest of this correct because when I try to do the save I get an error that the stored procedure is expecting the GoalID.
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Apr 15, 2009
We created a template using Adobe LiveCycle Design and in order to make our one field work the way we need it to we had to save it as a dynamic xml form (*.pdf) and according to itext in action you cannot use acrofields with this type of pdf since it uses an xml based architectu
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Feb 3, 2010
I am trying to create a form where depending on what the user selects, they are shown a collection of images from the web. Depending on what they select there will be a different amount of images so each picture will need to be added dynamically.
I am able to create PictureBoxes dynamically however I'm stumped how to create event handling in order for each control to give a unique response.This is what I originally tried but I got an error..
Private Sub Form1_Load
For i=0 To 10
Dim picBox As PictureBox
[code]....
The error I got was
'AddressOf' operand must be the name of a method (without parentheses)
How ridiculous that you can't include arguments in your AddressOf! Can anyone shed some light on my situation (or knows a better way of carrying out my goal)?
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Nov 11, 2009
Im trying to make a radiobutton move diagonaly, (Dont ask why a radiobutton, i did it in college last week) For some strange reason though I need another radiobutton just going across the screen in order for my diagonal radiobutton to move.I would like to develop this into a game like pong, when I have gone further into VB.
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Jan 8, 2010
I have developed a small window application, having lot of insert and select scripts. It runs fine for 3 times but when i run it 4th time it gives me Error "Out Of Memory Exception". I observed that in my task manager Sqlserver.exe process occupies memory around 167000K. Then I killed it. and again run the code, this time it occupy 12000K memory. Again I run it...the memory increases and stops at 87125K. All It means i the C#.net objets are not disposed well.
I have tried for
GC.GetTotalMemory()
But failed? How can I release objects?
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Feb 6, 2009
I am relatively new to C# and winforms, although I have been using Java for years, so forgive me if im asking something relatively straightforward!I have a DataGridView, it needs to update regularly so I wish to provide a Collection of objects as its DataSource and NOT a database table.So far I have a List<MyObject> which will be constantly updated via a BackgroundWorker thread. I want my DataGridView to update when a change has been made to the List i.e. if the objects are resorted, added to or deleted from etc.Currently my DataGridView only displays the first object I add to the List, if I add more the DataGridView doesn't update to display the new objects added.This is a basic overview of how im coding it:
private List<MyObject> myList= new List<MyObject>();
myDataGridView.DataSource = myList;
Then my BackgroundWorker thread updates the list, e.g.
[code].....
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May 15, 2009
I want to cycle through a arraylist and for each item in that list I need to create a picturebox, label1, label2 each with specific name attributes
[Code]...
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May 4, 2009
I wanted to ask you how I can make vb 2008 connect to web forms, fill them out & submit them all from vb 2008 objects/fields.
E.g. My vb form will have a gui that consists of textboxes, buttons etc... that will enter the data to web forms.
Here is Google accounts Sign-Up page & I want to automate the Sign-Up process: [URL]
Take a look at this Account Creator app. that automate sign-up & see if you can assist me on this: [URL]
All I need is for you to tell me how to connect to the fields on any webpage that I want from VB 2008 fields/objects to any Web forms fields/objects.
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Aug 15, 2008
I'm not real sure how to even ask this question... but here goes.I'm using VB2005 and DirectX 9, D3D. It is 2D isometric display.Here is what I CAN do. Create a map grid. Draw each tile out and present the map on the screen. (ISO) I can even scroll around using the arrows and mouse at the edge of the screen.
- I can click on the map and get the X,Y coords of the tile I am on.... look up the grid to see what is supposed to be on this tile.The only game coding experience I have is using windows forms controls... I've done a few dozen of them. Dice games, card games..
[Code]...
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Mar 15, 2011
I have a windows form application and also a exe application that both uses the same dll whic I place in the bin directory The dll is using crystal report and thus I need to reference com objects and other .net drivers. My question is following: Where should I put these references, in the class library (dll) or in the windows form / exe applications. If I put them in the dll, will they automatically be loaded when call the dll (entry point) or do I need to something else (create in installer etc)
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May 22, 2011
I've been working on creating forms and objects through code in the the load event of Form1, truthfully theres a few questions I have under this one category but to start I want to create a button click event that will check what button was pressed then set that button to a variable. I want the event to treat the button that was clicked like it was that buttons click event.Here's a shortened version of my code (Lol if you can call this short):
[code]...
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Jul 18, 2009
I'm writing a tabbed web browser for someone who is learning VB.NET, and I have got to the point where I can add/remove browser controls into tab pages, controlled by one set of buttons on the main form, but I can't handle events from the WebBrowser objects.I have tried this but it says that 'DocumentTitleChanged' isnt an event of 'Control'...
Dim browser As New ArrayList
browser.Add(New WebBrowser)
browser(0).parent = TabControl1.SelectedTab
browser(0).dock = DockStyle.Fill
AddHandler browser(0).DocumentTitleChanged, TitleChangedHandler()
I want to update the tab title with the web page title when it changes. I started using a timer to update the tabs but there must be a way to add an event handler here.
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Apr 7, 2010
I am hoping that somebody here is familiar with the book, "Doing Objects with Visual Basic 2005" so this question makes more sense but I will try and ask it in a way that makes knowledge of the book irrelevant.The book contains a sample project that I am trying to use as a "framework" for all my new projects. The project shows you how to read and edit objects to and from a database and that part works great. The author then leaves the new and deletes up to the reader to do, which is a good way to learn. However I am having trouble with the it. My problem is that I am having trouble implementing my own ProcessNew InterfaceI think this is how it should be:
Public Function ProcessNew() As Boolean Implements IMDIChild.ProcessNew
Dim myGoal As Goal = TryCast(GoalBindingSource.AddNew, Goal)
myGoal.Goal = rtxtGoals.Text
[code].....
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Nov 10, 2011
We have an application that has a main form with a map on it. Right now the paradigm is to have forms that are displayed using menu items to display information to the user. Most of these forms are modal forms, but a couple are non-modal forms that interact with the map. For some of the forms, it really would make for a better user experience if we could dock them in the main form of the app and allow the user to see both the form and the map. For instance. We could have a list of map features in a docked window, and select one of the items on the list and have the map zoom to that feature. Or do the reverse: let the users select a map item and have a docked window that shows details of the feature. Sounds great, but I wonder about what sort of gotchas we may encounter. In particular, what if we have two windows docked at the same time? Could we get tangled up in our event code?
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