I wasn't ment to post anywhere, but I'm having a massive headacke.I've searched the Internet, tried many different way, but nothing to do.. I can't fix this, I don't even know why this is happening ..See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.InvalidOperationException: An error occurred creating the form. See Exception.InnerException for details. The error is: Class not registered (Exception from
I want to be able have the class autofire a function when it is first declared. In my example it would be to load from a file all the constant variables for use in the program.
I'm trying to create a generic Controller Class for generic events. But these these events still need to access their class variable. So my idea is to create the Base Controller Class with a ModelBaseclass variable as _ClassVar, which is inherited by all of the other class Controller classes will derive from. But I want the derived controller classes to override the _ClassVar with whichever one they need.
I want to do this, so the ControllerBaseClass can have all the generic functions that all the Derived Classes would use.
Model :
Public Class ModelBaseClass Public Overridable Function Foo() As String Return "Name"
I have a text file to read, at the first line will have a size of array, that means I cannot guess size of array, and I have to create a array in side a sub (Local Variable). Then, I want to use value of array in another sub, but I cannot use value of variable of another sub. What I have to do to make an array con be used in every sub/function in a class? Also, I've post an example file, code and error list.
Public WithEvents Tree as Tree. I am not able to Serialize the Tree class, but if i remove the "WithEvents" keyword, it works fine. Why? What should I do if I have to declare it with "WithEvents"?
What does this error mean? I havent modified anything in the designer code, but its giving me an error? WithEvents variable 'Move' conflicts with event 'Move' in the base class 'Control' and should be declared 'Shadows'. The error relates to Friend WithEvents Move As System.Windows.Forms.DataGridViewCheckBoxColumn
I am try to learn to use Mysql / MySql.Data.MySqlClientI did find sample how to connect to Mysql but I want to have it in Class or Module so I only call open database when I open the form
Background:I have a base class and several inherited derived classes. The derived classes don't always need to have the same properties. If any properties are shared among the derived classes, those properties would live at the base class level ('Contents', for example).Similarly, GoodDocument below has 'GoodThings' but would not want/need to have 'BadThings'.I want to treat instances of both 'GoodDocument' and 'BadDocument' as type 'Document'
public mustinherit class Document public property Contents as string public sub new()...
In re-engineering a windows forms application, I find that a lot of code-behind in the various form classes is duplicative and I'm trying to centralize as many procedures as possible into a base class which can be inherited and used by the subclassed forms.
This process seems to be going well and is making the code in my subclasses much simpler and hopefully easier to maintain, but I'm not sure where to draw the line between leaving code in the subclasses and engineering for generic resusability and moving it to the base class.
Specifically, in some subclasses I have code which manipulates variables and objects specific to the subclass, and although I could move the code-behind into the base class, the base class code references specific objects which are needed to compile. For example, each subclass manipulates a databound datagridview and form detail controls which allows the user to select between multi-record and detailed single-record views of a datatable.
In Visual Basic 2008 do I need to declare dummy data objects in the base class so that the base class will compile? Or is there a way to indicate that the data objects will be provided by the subclass?
i have 2 mustinherit classes where one is a generic one:
'Visual Basic 2008 - .net 3.5 - Any CPU Public MustInherit Class BaseObject
End Class
Public MustInherit Class BaseObjectList(Of T As {New, BaseObject}) Inherits List(Of T) End Class[code]...........
i receive: "Type argument BaseObject is declared 'MustInherit' and does not satisfy the 'New' constraint for the type parameter"users would never enter data in the wrong form,files they choose to open would always exist and code would never have bugs.
I placed this checkbox named owner on my form. When i build the project i got the error as Quote: 'owner' conflicts with property 'owner' in the base class 'Form' and should be declared 'Shadows'
I am converting an application from vb.net 2003 to 2005. I got the following warning and need help how to resolve it. withEvents variable 'PreviousPage' conflicts with property 'PreviousPage' in the base class 'Page' and should be declared 'Shadows'
Yesterday I started my first DLL project which is for ArabicMessageBox that will allow arabic programmers to display there message in totally Arabic message.My project contain one Form only, and the basic code that I use is:
Public Overridable Function Show(ByVal APrompt As String) As MsgBoxResult mLoad(APrompt, MsgBoxStyle.OkOnly, "") Me.ShowDialog()
When I use this code in a brand new project, it works just fine.But when I put it in an existing project, I get the name is not declared error pointing to item.I don't understand while, in one proeject its perfectly fine and in the other there's an issue. I've done everything I can to ensure that everything is the same across both projects.
I'm using Microsoft Visual Basic 2008 Express Edition. In the little program I'm creating, I added a WebBrowser and a button that will make the WebBrowser navigate to a designated website when clicked. So far, it's fine.
The problem is that I want to be able to get the value of a variable declared in the website's javascript. How do I do this?
The following is a part of the source code of the website.
<script language="javascript"> var contextPath = "/websmsn"; var noSessionPath = "/websmsn
[Code]....
I want to get the value of "activeMsgSessionId" and store the value in my own variable. The value of "activeMsgSessionId" changes every time the website is loaded.
I was creating an XML Schema from a project 2003 XML. All was fine until I rebooted the machine and tried to re-open the file. I am now getting an error along the lines of: "Identity Constraint not declared". I've compressed and attached the file.
I have some existing code to create an Excel spreadsheet and it works OK. I wanted to modify it to do some conditional formatting. But I get the messages xlCellValue, xlEqual, Formula are not declared and named argument expected. I have no references for Office or Excel.
Public myExcel As Object myExcel = CreateObject("Excel.application") myExcel.cells("C2:DG61").select() myExcel.selection.formatconditions.delete() myExcel.selection.formatconditions.add (Type:=xlCellValue,Operator:=xlEqual,Formula 1:="1") myExcel.selection.formatconditions(1).interior.colourindex = 48
This timer code is for VB6 and worked fine, It's to change the timer seconds into minutes, I'm not sure how to make this work for 2008 though.
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Timer1.Interval = 1000 ' set timer to 1 sec intervals. Timer1.Enabled = False ' timer is off End Sub
[code]....
the errors are...
Error1Name 'StartTime' is not declared. Error2Name 'MinutesToWait' is not declared. Error3Name 'StartTime' is not declared.
I am trying to create an list or an array of a class.Here is my "Ingredient" class that I am trying to create a list of:[code]In my "recipe" class, I am want to create a list (or array) and I am drawing a big blank on how to do it. Can anyone point me in the right direction?
I am searching for the Component Class. When I go to "Add New Item" ,in my project their is no Component Class Item in VS 2008. I would like to Drag and Drop control onto my new class and I can't see how to do this ?
I have a 'property management class' that contains several functions and properties. I have several other classes that use the 'management class' as a property to derive the value of several of its other properties.Is there a way for me to reference the outer class from the 'management class' functions without having to pass it as a parameter? I ask because several different classes can have this 'management class' as a property and am having a hard time typing the parameter.
I'm trying to add CheckBox1.Checked = True to my .dll but i get this error. Error1Name 'CheckBox1' is not declared. But it the client app it is declared.
