VS 2010 Interchanging Data Between A Component And A Form?
Jun 21, 2012
I recently have been developing an application in .net that uses lots of components created as digital/analog input/outputs, and, when each component is clicked shows a form that shows it's state.The problem is that the form allows to change the state of the component and I don't really know how to reflect the change made in the windows to the component variables, as I don't know if there is a way to call the parent from a windows form or any similar way to do it.
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May 1, 2010
I'm trying to make a Toolbox component which the user can drag onto a form in the VS Designer. The component has to recognize the Form it is on, in order to handle certain Form events. I would prefer to do it without requiring the user to add any code to the form. Does anyone know a way the component can get the identity of the form?
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Feb 3, 2011
I am converting an old Vb6 solution to .net 2.0 in vs2010. I've been working in C# for about 3 years now and .net for 5. I don't recall having this problem in C#, but if I want initialize a readonly collection of DerivedControlFoo Is there a clean way to do it besides creating a sub to do it all off somewhere else? I'd love to be able to do it at the class level at the declaration for readability and simplicity.
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Jun 18, 2011
I have 2 forms main_frm and copying_frm. In main_frm, there is a list view that is populated with file names. The user then clicks save and all the files in the list are copied to a folder that they choose using a folder browser dialog. When this happens, I do copying_frm.ShowDialog() to display the copying_frm. The copying_frm contains a progress bar and a cancel button. I can get the progress bar to indicate how much has been copied. But that freezes up the application. To get around this, I create a new thread (called copyingThread) that copies the files. When that thread runs though, it can't access the waitingList_lvw in main_frm. For example, in the function that the copyingThread executes, if I have this line of code: MsgBox(main_frm.waitingList_lvw.Items.Count.ToString()) the result is 0. Also, I don't get any errors and no files are copied. How do I access waitingList_lvw in main_frm from a thread called copyThread that was created in copying_frm?
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Mar 1, 2010
Create a DLL component for database operation and use created component in another project. Required methods, events and properties
a. Connect
b. Add
c. Delete
d. Save
e. Record navigation (first, next, previous, last)
f. Properties for all database fields
g. Events for validation of database fields.
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Nov 9, 2009
I would like to save a form to complete in the properties of "My.Settings" Is this possible? [code]where my.setting.form2 is a system.windows.form. form.it is possible to do that ?
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Dec 13, 2010
I have created a class and want to distribute it without giving off my code/create it as an application. I am aware that components are nearly no longer used and their disadvantages. I dont need to draw anything on the ui. (I know basically components are used for this aim but I just need to try this :] )
My question is: My class uses a webbrowser because webclient and web request don't work for me. When I start vs 2010 and select new project - Class Library and include the namespace System.Windows.Forms it doesnt find it. So first of all should I select class library to create a component and how could I include the webbrowser object?
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Feb 22, 2011
I'm developing a Component. I'd like to do something when the component is dragged from the toolbox and dropped onto a form. For example display an about box.I don't want to annoy the developer by popping up an about box every time he refreshes his display or reloads the form.
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Mar 14, 2012
I drag a toolstrip component to my form. I insert two buttons n two separators. During i configure these items, some time it will disappear but in the properties side, i still can found these items still exists. But i can't found these component in my form. I tried to add same item with same name n it show a error message box(because already exist).
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May 23, 2011
i have an ocx called TTF16.ocx. It is 32 bit and I placed it in Windows/SysWoW64 and register it as an admistrator (My system is Windows 7 64 bit). The control appears in the toolbox. When I try to add it in the form I got the following warnings
Warning 3 Cannot get the file path for type library "bef6e001-a874-101a-8bba-00aa00300cab" version 2.0. Library not registered. (Exception from HRESULT: 0x8002801D (TYPE_E_LIBNOTREGISTERED)) F1koe3
Warning 4 Could not resolve COM reference "b0475000-7740-11d1-bdc3-0020af9f8e6e" version 6.1. Object reference not set to an instance of an object. F1koe3
Warning 5 The referenced component 'TTF160' could not be found.
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Sep 25, 2011
how to find the form that a component resides on.
I googled this and found several articles stating to do it as follows:
vb
Public ReadOnly Property FindForm() As ContainerControl
Get
Return mc_FindForm
[Code]....
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Aug 6, 2011
Is there a way to resize all component when the form is maximized?
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Mar 24, 2011
Is it possible to scroll the webbrowser-component to a form on the webpage?
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Sep 16, 2011
[Code]...
I use vb.net but if it is easier in c#, I am trying to use this layout in email component.
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Jan 26, 2012
i want to know how to download sqlconnection data component, which site i can download....
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Nov 20, 2010
Just tried out a new Excel component. (Spire.Xls)I make a reference to the DLL and write my code to create an excel workbook. Everything seems fine but when i compile my program i got this warningWarning1The referenced assembly "Spire.XLS" could not be resolved because it has a dependency on "System.Web, Version=4.0.0.0, Culture=neutral, ublicKeyToken=b03f5f7f11d50a3a" which is not in the currently targeted framework".NETFramework,Version=v4.0,Profile=Client". Please remove references to assemblies not in the targeted framework or consider retargeting your project.Mix-kasse
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Dec 1, 2010
I have developed a Component and I want it to be able to detect when it's running in the IDE.
Or, let me rephrase that - I want my component to be able to detect when its parent form is running in the IDE.
I can use .DesignMode and a few other methods to detect when my component is running in the IDE (For example when my component is placed on a form etc)
But when the parent form is executed from within the IDE then .DesignMode returns false.
Is it possible for a component to detect if its parent (the form) was started via an IDE/Designer ? or via the command line/start menu or what ?
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May 24, 2009
after i run the program, the form pop up showing no problem.however, when i click on the maximize button on the top right of the form, the form enlarge and fill the screen. but the components will not move accordingly.
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Feb 2, 2010
I have an error that keeps regenerating when the form is closed and open back up.
1) Windows Form Application (Project: TestProject)
2) Add class in same project:
Public Class Test : Inherits System.Windows.Forms.TextBox
3) Drag and drop into the form within the project (works fine)
4) Close form
5) Re-open form... then error about the class Test in the project not defined
Actual Error: Type 'TestProject.Test' is not defined.
Is there a best way around this besides creating a separate project and putting the 'Test' class in that separate project and referring that separate project in the 'TestProject'?
Modified Added: By the way... i've used Global.TestProject.Test... but then again another error generate with the custom property within the 'Test' class.
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Mar 6, 2009
Commonly if I maximized my form. It'll look like this And now, i just want to ask a simple question.. How to centered all those components if i maximized it??
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Feb 20, 2011
I'm having problems with coding in VB 2010 Express. One of the many errors I am dealing with is the user interface form. It says it's a component, so I have to use it in a form.
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Feb 4, 2009
(I use VB 2008) I'm working with the webbrowser-component. I got a problem to fill a text-field. The textfield is named "description" but I cant fill it. I guess it's because it's more than one form on the page that got a element named "description".
[Code]...
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Jan 8, 2010
I've created a component whose name I'd like to be able to change while editing in the component tray. I've added a Designer action for a name property, but now I'm stuck.
Looking at the property grid, I can see that the name property is parenthesised, indicating that it's not a regular property.
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Feb 2, 2012
creating a COM component Instance like this for supporting multiple version of COM components
Creating Instance
Private _cmObjct As Object
Public Property CreatingInstances() As Object
Get
[code]....
at the same time how to declare this method without referenced dll SSDP is an interface so how to declare this interface for my usage is this Correct ...?
Error: Dim d as Object = Activator.CreateInstance(Type.GetTypeFromProgID("SecureTronics.SSDP"))
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Sep 8, 2011
Weird problem, it only happens for one of my clients, and it happens on all 3 of their computers. Their computers are Windows XP.My form has a Windows Media Player control on it, to play a video from the internet. When the form loads, I get an exception "External component has thrown an exception". It happens in the form's designer, in the InitializeComponent procedure, at this line:CType(Me.wmpVideo, System.ComponentModel.ISupportInitialize).EndInit()
It works great on 100 other clients computers, running XP, Vista, or 7, and this is the first person to have this issue. If I take the Windows media player out of the form, it works fine.BTW, those computers have Windows Media Player installed, I already checked.
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Jan 1, 2008
Im learning Tcp communication right now, and Im a newbie :P First can i add a component to the form for tcpclient and tcpserver like a add one for a textbox and a botton?
Second, which method is better Dim listener As Net.Sockets.TcpListener Dim listenThread As Threading.Thread
or Dim tcpClient As New System.Net.Sockets.TcpClient()
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Jan 16, 2011
So I have decided to learn more about this Invalidate() thing. I decided to simply draw a rectangle where the mouse clicks in the form, for testing.
Code:
Public Class Form1
Dim p As Point
[code].....
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Mar 30, 2011
does it possible to make file transfer with winsock component on visual basic 2010? Because i tried much codes, but it doesn't works
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Jul 13, 2010
Hi, I'm trying to receive email in vb.net and I found a great tutorial on how to do it. However, I need a component named ADODB and Interop.MAPI.dll to do so. Where could I find either component?
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Oct 25, 2011
I'am Using Visual studio 2010 from 1 year , and it's work fine But Today when I tryed to open the Vs2010 an Error Msg was Appeared to me which is (Cannot Find One Or More Components please reinstall the application.)
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