Create And Use Tabcontrols At Runtime?
Jan 23, 2011
I can build the tabstrip fine and name it - that part is from what I can see the easy bit.What I want to do is select a tab then create a listbox on that tab, and then pupulate the list box with data.
For this test I am using the event viewer.
The system loades the logs into memory, and then creates however many system logs there are ie application, system security etc etc.
But how the hell do I select one of these tabs then draw a listbox and then address the list box - Ideally the list boxes etc will be created at the time of the tab?[code]...
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Aug 11, 2010
I am building a sort of 'lightweight' Visual Studio, and I'm trying to implement the feature where you can drag tabs to different 'tab groups', viewing multiple tabs side by side.
I got nearly everything working, I show a ContextMenuStrip when you rightclick the tab headers, with the option of creating a new (horizontal or vertical) Tab Group. When that happens, a new TabControl is added dynamically and the selected tab is moved there. You can drag the tabs around inside a TabControl and even from one to another.
The problem now is keeping track of the 'active' tab. Since I have multiple TabControls (not just two, there can be as many as you want theoretically), their SelectedTab properties are basically useless. How am I to determine which TabControl the user is currently working in? Obviously I will always have multiple selected tabs, but only one active tab, in which the user is currently typing, editing, whatever.I need to know the active tab for obvious reasons: many menu and toolbar items act on the active tab for example. A short explanation of my controls:I have one TabGroupContainer control, which inherits UserControl. I have a TabGroup control, which inherits TabControl.I have a Tab control, which inherits TabPage.
The TabGroupContainer holds a collection of TabGroups (to which I dynamically add/remove TabGroups when required). Now I want the TabGroupContainer control to have the ActiveTab property which returns the one and only active tab (out of possibly many selected tabs).The only logical way is to keep track of the tab that was selected last, for every TabGroup.
At the moment, I am doing this:
- In the TabGroup (TabControl) class, I shadow the SelectedTab property (and return a Tab instead of a TabPage). More importantly, in the property setter, I raise a SelectedTabChanged event:
vb.net
Public Shadows Property SelectedTab As Tab
Get
Return DirectCast(MyBase.SelectedTab, Tab)
[code]....
However, it still doesn't work. I soon figured out why: I am checking that the previously SelectedTab is not the same as the new value in the property setter of the (shadowed) SelectedTab property. I don't raise the event when they were the same, and in this case they were the same (as there is only one tab in the TabGroup!).So, I took that check out, and now it seems to work when I click in the text editor.
So one problem remains: the active tab is not changed when you click on the tab header (and not on the text editor). I am clueless as to how I should handle this... I am once again sure there is a simple fix, but I cannot see it. I can click the tab header, and I'm sure behind the hood it responds to this click, but it never raises it SelectedIndexChanged event because the index didn't change but was set to the same value it already had. I cannot override the SelectedIndex property (so I could skip this check and raise the event anyway even if the value didn't change), and the OnSelectedIndexChanged method is not called, so I cannot use that either...
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Feb 18, 2011
I'm attempting to create a listbox when a button is clicked in Visual Basic 2008. I can't seem to find code that works to do this.
Dim lstOutput As ListBox
lstOutput = Me.Controls.Add("VB.Label", "List1")
Problem is that both of the things inside the parenthesis generate errors:For the first one:Value of type 'String' cannot be converted to 'System.Windows.Forms.Control'.And the second one:Too many arguments to 'Public Overridable Sub Add(value As System.Windows.Forms.Control)'.
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Jun 21, 2010
Is it possible to create a new My.Setting item and value at runtime or does the setting already have to created? I'd like create new settings and delete settings.
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Jun 21, 2010
I want to create controls in runtime and attach them to an already connected database..
the controls must vary e.g.Array of Strings can be used.
how to place these controls on a panel in a orderly fashion.
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Jun 16, 2010
I'd like to know how I can craete new forms at runtime.
Lets say I press Command1, a new form would open with a text box and a button on it. If I click Command1 again, another form would open with a textbox and a command button.
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Jul 11, 2010
I am creating a application which one select and display swf file with frame on slider. In this program user can select range of frames.like swf file have frame range is 1 to 5000. in my app user can mark first mark on 100 frame and end point on 1000 frame. now this 100 to 1000 will be my range and in store this range in notepad.Now i want to create swf file of selected (or Created range - 100 to 1000) range. As per this process user create multiple ranges of frames.how to create swf file from created range (selected frames) in vb.net. I checked on net but i cant find how to split or runtime create swf file from selected frames of perticular swf file.
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Nov 22, 2011
how to create tcp socket in runtime. suppose i want to create a 1 to 100 array of a socket and sending data by it how can i do it
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Mar 31, 2012
I am new to VB. Started making a software. What I want is when a user click in PictureBox he should be able to create a textbox (Read Only) at X, Y coordiantes of picture box. I am able to get X,Y coordinates but dont know how should I create a textbox there during runtime. Also there is another textbox whose text is to be displayed in new textbox in picturebox. I also want to check that if user have entered a comma (,) after string or not in the text.
(eg : "String %d %d",argument 1,argument 2)
Here is code I have created till now : [URL]
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Oct 7, 2009
I have created a Visual Basic ActiveX DLL project. The output of this project ( a dll )gets loaded inside VB6 runtime i.e. a process which is loaded with msvbvm60.dll. I used Visual Basic 6.0 IDE ( vb6.exe:name of compiler ) to create this project. Now my requirement is to create a similar dll which can run inside VB5 runtime ( msvbvm50.dll ). I assumed that there should be some Visual Basic 5 IDE ( vb5.exe ) which can be used to create VB5 runtime compatible dll, but could not find one
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Mar 7, 2009
As Google and Yahoo have provided barely anything, I was wondering if anyone can point me in the right direction on how to, or an example of how I can build a working executable during runtime in vb.net.It's for my custom school project.
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Sep 23, 2010
I'm trying to create a time during runtime. I can create the timer just fine but I cannot call it from another sub.[code]...
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May 30, 2011
im currently messing up with 20 richtextboxes, and i have this issue right now.... Everytime a user leaves the richtextbox, the richtextbox should automatically scroll back to the beggining, i do that by using this
[Code]...
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Aug 5, 2011
I want to create CheckBox(Appearance->Button; FlatStyle->Flat) at runtime. After making Checked some of them, I need to identify by another button which CheckBoxes are checked. Below the Function to createCheckBox at runtime.
Dim i As Integer = 50
Public Function AddCheckBox(ByVal strName As String)
Dim chkNew As New CheckBox[code].....
how to identify(By another button) which CheckBoxes are checked after creating some CheckBoxes and making few of them Checked at runtime.
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Dec 31, 2011
A while back I asked a question on how to create EXEs at dynamically at runtime. This time, I wanted to know how to add code to your program dynamically at runtime too. Like if I had a textbox on a form, and I typed whatever code into it, then it would add the code to a subroutine and it would be executed. How can this be done?
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Jan 6, 2012
I have a form that depending on results from a table would create a number of buttons using code at runtime. This could range from 1 to 20 buttons. What I am struggling with is creating a generic mouse over event for each of these buttons? The reason why I want a generic mouseover event is that depending on the text on the button I would do certain things, instead of duplicating the same code in individual mouseover events.
[Code]...
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Jan 6, 2012
I have a form that depending on results from a table would create a number of buttons using code at runtime. This could range from 1 to 20 buttons. What I am struggling with is creating a generic mouse over event for each of these buttons? The reason why I want a generic mouseover event is that depending on the text on the button I would do certain things, instead of duplicating the same code in individual mouseover events.
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Nov 24, 2010
Background: ok I have an app that hides in the system tray. During its operations in the background it can try to invoke an outside app several times.. and I need to track when the call errors out.. I was using messagebox's but for some reason if the app hidden the messagebox's dont come up and goto the forefront. So in reading about this I read I should just use a form to do it.. so I did.. works fine.. well works fine for one error.. but if the user tries to do 3 of the same operation.. and lets say first errors.. second works and third fails.. using one error form wont work.. since I diaplay the error one.. then need to display error 2.. I need 2 error forms so they can click OK on both.[code]...
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Oct 4, 2009
Trying to create an application where the objects in a form are created during Form.Load depending on the content in an ini-file.The objects I have in mind are textboxes and labels for a start.
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Aug 14, 2009
i want to make a report at run time using vb.net and sql server stored procedure.
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Oct 2, 2009
i create runtime form and this form one button create at runtimeand that button's click event handle at runtimehow do this at runtime?i project is runtime create calculator
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Feb 15, 2012
how to create tables at runtime? Or if it is a long story, kindly direct me to a site where I can learn more...
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Nov 26, 2009
is there a way to dynamically create functions at runtime?
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Aug 21, 2008
The exact error that was thrown was a MissingMethodException,and was caught like
thisExceptions.Domain.GeneralException was caught Message="UpdateVendorFileProcessingWeek, Method not found: 'Int64 DataAccess.Manager.VendorFileHistoryManager.GetVendorFileHistoryID( Int64, System.DateTime, Boolean)'."
Source="Domain"
[code]....
there's a series of shared functions being used;everything compiles and builds ok - it's only during runtime that the error is thrown;the code itself DOES NOT use reflection to find any methods (but obviously the frameworkis doing some reflection)?
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Jun 29, 2009
I want to dynamically create tabages at runtime. So I hav to create an array of tabpages.
How do I create it and later add it to my tabcontrol?
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Jun 6, 2012
how to create a picturebox programmatically.creating a video game (tile based).....
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Mar 17, 2009
I googled this and found several different codes, but none of them work. What I want is to be able to create a control, for example a Label, during the runtime of my program. I've tried:
Dim lbl as New Label
lbl.Text = "Hello"
lbl.Location = New Point(20, 20)
[code].....
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Jun 16, 2009
Is there a way to create new mathematical equations at runtime? Obviously you can pass new variables to a given equation, but I need to make a new equation altogether (then give it variables).
[Code]...
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Oct 10, 2011
I want to create a DataGridView control array on my form at runtime? I am fairly new to vb.net.
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Jun 25, 2010
I have created a label to display on my form at runtime but it doesn't show up. I know I am doing something really dumb.
Dim
lblLoad As
New Label
[code]....
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