I know how to dock a component using the windows forms designer as well as through code but I am having a problem with one thing. I am trying to dock a richtextbox on a panel through code but it seems to be filling up all of the space instead of just the panel. When I put it on the form and dock it works fine. The code I am using is:
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In a windows forms class in Visual Basic 2008, there are several horizontal lines created with the lineshape control dragged from the toolbox. A very strange thing is happening with the horizontal lines. In the forms designer, all of the the lines (both horizontal and vertical) look fine, but when the program is executed (in debug mode), about 3 seconds after painting the screen nicely, I get echos of portions of the horizontal lines about 50px or so above my horizontal lines. You can look at the screenshot here: [URL]
View 17 RepliesWhen I develop a Windows Forms app in Visual Studio using C#, every control that I add to my form is by default marked as private, which is what I want.
When using VB.NET, every control is by default marked as Friend (the equivalent of internal in C#), which is not what I want.
Can I just change this default? It seems like surely it's a setting somewhere.
I have cooked up my first iteration of a code generator which creates the basic Entity models from a SQL Database Schema. Currently, It will scan a SQL Db Schema, and create .vb code files complete with private members and Public property declarations for every User table in the Database. My next step is having it add the basic CRUD procedures as well. Are we mere mortals able to access whatever technology allows the Partial class files created by vs to be hidden/Linked to their "parent" files, such as the Partial Class files for Windows forms or any other designer-generated control? My thinking is that it would be handy to be able to re-generate code files from the database if necessary to reflect changes in the schema, without overwriting any other properties or methods added to a class in addition to those derived from the database. SO I am hoing I can have the Auto-generated output go to a Partial Class file, and then use a regular class file of the same name for the rest of the code. My Concern is the multiplicity of files that might result, so I was hoping it is possible to "tuck them in" to the parent code file in the Class View.
View 7 RepliesI am designing a simple user interface using winforms. In the designer I have a panel on the form and would like to add a datagridview control into the panel at runtime and set the dock property of the datagridview to 'Fill' so that it fills the panel.
I am struggling to do this and following code is not working out for me:
Dim MyDataGridview as New DataGridView()
MyDataGridView.Dock = DockStyle.Fill
Me.MyPanel.Controls.Add(MyDataGridview)
I don't get an error but the datagridview isn't visible. It gets added 'behind' the panel and so I tried using .SendToBack() and .BringToFront() methods thinking that the panel was hiding the datagridview but this doesn't seem to work either. At any rate, it seems like the datagridview is being added to the form but just not docked within the panel
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.
I've taken some time to create a nice little Dock for Windows, called WinDock.
View 2 RepliesWe've recently upgraded from VS2008 to VS2010. The conversion of our vb.net Windows Forms app went well, but we're now having big problems with the forms designer.retty much any change to the layout of a form (sometimes just a solution rebuild) will work once, but on recompile, the IDE designer refuses to display the form, the error message being a null-reference exception (with no details as to what).Closing and restarting VS2010 will cure it, but only for one compile cycle - and it's obviously not practical to close and reopen every time. Closing and reopening the form does not fix it.
View 3 RepliesPublic Class NAND
Private inputA As Integer
Private inputB As Integer
Private outputQ As Integer
[Code].....
I have this code and I hope that this is correct. I build a dll component from the class file that contains this code and I am trying to use it as a reference in windows forms application. I have allready made this forms application and added the ddl to the reference but I do not know how to use it in there. I would like to activate (insert value 1) inputA & inputB using checkbox and that the outputQ is displayed in textbox (1 or 0). Do I have to use a vb interface to do this? And how can I use this code as dll component in the forms application?
I use the code about video capture of this site, it ran very well ! VB Helper: HowTo: Capture video from a video device such as a Webcam with VB .NET But I want to change the interface of form then after I customize my new one with button, picturebox (with the right name), copy the code again except this paragraph #Region " Windows Form Designer generated code "
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With several forms of mine, I occasionally run into the following issue: I edit the form using the designer (Visual Studio 2008, Windows Forms, .NET 2.0, VB.NET) to add components, only to find out later that some minor adjustments were made (e.g. the form's size is suddenly changed by a few pixels), and controls get deleted. This happens silently — event-handling methods automatically have their Handles suffix removed, too, so they never get called, and there's no compiler error. I only notice much later or not at all, because I'm working on a different area in the form.
As an example, I have a form with a SplitContainer containing an Infragistics UltraListView to the left, and an UltraTabControl to the right. I added a new tab, and controls within, and they worked fine. I later on found out that the list view's scrollbar was suddenly invisible, due to its size being off, and at least one control was removed from a different tab that I hadn't been working on.
Is this a known issue with the WinForms Designer, or with Infragistics? I use version control, of course, so I can compare the changes and merge the deleted code back in, but it's a tedious process that shouldn't be necessary. Are there ways to avoid this? Is there a good reason for this to occur?
One clue is that the control that was removed may have code (such as a Load event handler) that expects to be run in run time, not design time, and may be throwing an exception. Could this cause Visual Studio to remove the control?
I have created a custom designer (PannelloSfondoDesigner) for my custom control, a background panel (PannelloSfondo).
<Designer(GetType(PannelloSfondo.PannelloSfondoDesigner))>
Public Class PannelloSfondo
Inherits UserControl
[code]....
It works, I click the little arrow, the context menu appears:I click the menu item, the event is fired, the control is docked:but the menu description is not updated or refreshed (it should show "Undock from parent container"). Then if I click outside the control to deselect it and then I click back on the arrow to show the menu, the right menu item is displayed:How do I refresh the menu items?
I've created an application that displays a NotifyIcon when an event happens.
Public ContextMenu1 As New ContextMenu
Public NotifyIcon1 As New NotifyIcon
Public Sub CreateIconMenuStructure()
[code]....
In the form load to "Initialise" the NotifyIcon it then works fine when made visibleinvisible by code in the OnRegChanged event.
I am attempting to update an existing winforms application, that was created with a dataset control on all the winforms pages. I have ported it from VS 2008 to VS 2010 and I need to update the database section and connect it to the SQL backend using traditional code method.In the Solution explorer, when I click on the Dataset files, and click "Exclude From project" I am unable to build the project.Is it advisable to comment out the code lines that refer to the dataset in the .designer.vb files?
View 1 RepliesWhen I build my VB.NET 2008 Express Edition project I get the following error
The designer loader did not provide a root domponent but has not indicated why
I though this meant that I need to put my Acces mdb in the root folder of the project but that didn't help. why I'm getting this error? If I click on more information I get an message saying information not found.
Is it possible to edit the Windows Form Designer generated code in VS2008?
View 4 RepliesTHis is my error: The designer cannot process the code at line 25: Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font The code within the method 'InitializeComponent' is generated by the designer and should not be manually modified. Please remove any changes and try opening the designer again.
Callstack is:
at Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.CreateQuoteExpression(XmlElementData xmlElement)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.XmlElementData.get_CodeDomElement()
[code]....
How can i run form2 in form1(i mean under one process) and when i move form 1 form 2 also should move.
View 4 Repliesi want to snap or dock two forms together and have them move as one. i tried to download SandDock but i can't get it to work.
View 2 RepliesThis should probably be a different topic, but the reason I was cutting/pasting is that I have a split panel form. I dock a toolstrip to the top of one panel, and then add a datagridview control. I set it to dock to parent, and it does, but goes under the toolstrip, hiding the top of the grid and scrollbar. Not acceptable of course. Is there a setting that I'm missing?
View 2 RepliesI am running Microsoft Visual Studio 2008 Professional on a Windows 7 system.While working on a visual basic exercise in chapter 4 of the Microsoft Visual Basic 2008 Step by Step book on the MyMenu program I added a Toolstrip to my form and then I was trying to perform the add OpenFileDialog and ColorDialog controls to the component tray as described at the bottom of page 111 under Using Dialog Box Controls. I could never get the controls to appear in the component tray as instructed in the book.
I added a toolstrip to the form. According to my instructions I should be able to click on the Open file icon on the toolstrip to select it and then click anywhere else on the form. When I do that, the OpenFileDialog should appear on the component tray where I can then select it to enter code. This however does not happen.The only way I was able to get them to appear in the component tray was by opening the Menu program supplied on the DVD under chapter 4, selecting both of the above controls on the component tray, right clicking and then press copy. I then closed the Menu program and opened the MyMenu program that I created and then I was able to paste the two object controls to the component tray.
I went back to the original Menu program to see if I was able to place any other controls on the component tray by following the instructions in the book but was not able to. I also tried the same thing with MyMenu and it also still would not work.I have been unable to find anything that might explain why the component tray does not work as explained. Perhaps there is some setting somewhere that needs changed, but all searches have been unsuccessful.
PS. I have entered this on one of the other MicroSoft forums and although it has gotten multiple views I have not yet received any feedback.I also get the following error: Cannot add component of type 'ToolStripButton' to container of type 'form'.
I have no idea what I have done wrong here, so I'll just attach my project as a zip file and see if any of you are kind enough to look into it for me.I am reasonably experienced in C#.NET but having trouble using VB.NET for a school assignment.I cannot open half of my forms in designer view because "To prevent possible data loss before loading the designer, the following errors must be resolved".
View 1 RepliesI am new to VB 2008 programming The first project I've been tasked with is creating a ticker/notice-board for our office - which will show Horizontaly scrolling updates of incidents being reported. I'm ok with the scrolling, keeping on top etc - but what I am unable to do is make my form dock to the top of the desktop window, and make any other applications windows smaller.
So that when any other application is maximized, it's window will not go behind my ticker application - so people can still easily use any other applications toolbar etc. Is this possible to do in VB 2008?
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?
From this forum I saw some discussions about form/controls resizing issue with different resolution screen setting. Most suggestions are using Anchor/Dock. My application's form has 10 group boxes and some buttons. In each group box there are 5 Text boxes and other more controls. I tried anchor and dock but couldn't make it work. My questions are -
1, How to re-size form and all individual controls as well?
2, If anchor/Dock are suggested, do i have to use both of them or just one? it seems to me there is no big difference between them.
I am developing a window based application in VS2008, it has 3 forms.on each forms i have used TableLayout panel and set the Dock property to FILL.due to this, on page load my screen get's flicker and resize event get's called.i have tried with "Doublebuffered" property but failed if i remove doc property (means set it to none) then it's working fine but on only spcific screen resolution my screen works, on higher resolution it get's cut.
View 2 RepliesWhen I create an inherited form, after creation for some reason I cant see the form to edit in designer, I mean I cant drag and drop buttons, labels or any control to it since I just CANT see it, I have included a pic of what I see below where Form1 is the Inherited Form. What Am I doing wrong or what is happening
View 6 RepliesI lost my Form. All I see is the underling code I can't find the tab that alow me to draw objects and labels to my form.
View 9 RepliesVisual Studio 2010 Windows Applications Visual Basic-- not able to resize or move controls or form with my mouse in designer window. When hover over sizing handles or form edge, cursor changes to double headed area but nothing moves. I can drag controls with mouse onto form. I successfully resized by pressing shift key and using keyboard arrow keys. I am using Toshiba Satellite L665D, Window 7 64x.
View 3 RepliesOn a recent project I stumbled across a page of code that looked unfamiliar, but which evidently was the code behind my form design. I'll copy and paste an excerpt to show you what I mean:
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
[code]....
I thought this was a useful way to back up my project via email because it's in text form. But now I can't find the same information. I've looked in the Object Browser but couldn't find it anywhere. I think I stumbled on it the first time by right clicking Go to definition, but now that doesn't take me anywhere if I click on say form1. So where will I find this mysterious page that has all the form items information in text, not graphic form? Can't find it anywhere.