VS 2005 Way To Handle Similar Controls On Different Tabs?
May 19, 2011
I have a form with a TabControl on it. On the first tab I have a DataGridView and I have a series of controls to represent six separate filters that can be applied to the data in the DataGridView. Each of these filters consists of 1. a ComboBox to display the columns in the DGV so the user can select one to filter on2. a ComboBox to contain the different filter conditions ("Equal to", "Greater Than", etc...)3. a TextBox to allow the user to enter the string to filter againstSo that's what's on the first tab. Tabs 2,3, and 4 are visually identical to tab 1 although they will hold different data and have different capabilities.
View 4 Replies
ADVERTISEMENT
Feb 12, 2009
I was just wondering if their was an easy way to create one handle for several controls. For instance, I have 20 buttons and I want them all to do the same thing when clicked. Instead of having 20 handles for each button.click, is there a way to create one handle that can cover them all, such as a grouping or something?
View 16 Replies
Aug 23, 2011
There is newer code in a follow up post. I suggest using the code in the later post rather than the code in this one. You can still read this post though. When designing a user interface, one should be conscious of how many individual controls are required to implement the functionality. In some cases an initial design may begin with many buttons or textboxes (for example) but then further review of
the actual required functionality allows for a reduction in the number of unique controls.
But other times, there isn't a better way (which will still make sense to the user of the application) then to have a series of many repeated controls. So in the cases where one can be certain that the best UI implementation for an application will require the use of multiple copies of a given control, then it often becomes necessary to maintain some method of managing all of those controls at various points
throughout the application. Doing so typically requires that one build up some collection of controls which can then be accessed by index in order to work with any given control; but this can lead to a lot of clutter in the code file which handles these control's events. For instance there will be some kind of collection declaration, some recursive routine to find all of the controls of interest, and then any number of event handler methods with long lists of Handles clauses, or additional code loops to wire up the event handling for each control.
Purpose Since most of this functionality could be considered a requirement regardless of the type of control being managed, or its required functionality, it may make sense to wrap all of the control management functionality into a single class. And since our first requirement is a collection of controls, then a base collection class could be the perfect starting point for our control manager. There are a number of existing thread around this topic, with some recent (at the time of this writing) ones being:[URL]..In this, and related, threads I have posted examples of a simple TextBoxManager and ButtonManager control. But again, with so much similar functionality required regardless of the control being managed, it would be technically possible to create a generic ControlManager(Of T As Control) class which can manage any type of control.
[Code]...
So in summary, one can facilitate managing a large number of user interface controls by building a "control manager" class which both encapsulates the list of control instances, and deals with adding and removing defined event handlers for every control it manages. The generic control manager class itself can be inherited and extended into a more specific class on a per-application basis in order to provide more application-specific functionality. Reed Kimble - "When you do things right, people won't be sure you've done anything at all"
View 9 Replies
Feb 24, 2009
know of any decent calendar controls, similar to outlook preferably open source or free
View 2 Replies
Nov 6, 2011
Sharing similar functions across multiple controls
View 2 Replies
Oct 26, 2011
Using VB.NET 08 I'm using the following code which loops through a datagridview and makes the buttons found in the list visible
HTML Code:CallByName(Me.Controls("btn_" & list.Rows(J).Cells(1).Value()), "Visible", CallType.Set, True)
This code works fine with no issue with the buttons on on the form. However when I placed the buttons in to a tabcontrol on the same form I get the following error:Object variable or With block variable not set.
Does this error relate to the way CallByName calls the button handler and that its different to they way you could otherwise produce the same result using
HTML Code:
button1.visible=true
View 3 Replies
Mar 15, 2010
I have a datagridview that
Using single controls on different tabs
View 2 Replies
Aug 12, 2011
I need to be able to programmatically create new tabs on a TabControl, add controls to them, and be able to update the controls in each tab from another function. I already have a function to add tabs to the control, and to add controls to those tabs when they are created, but I'm stuck as to update the controls after they have been created.EDIT: This is what I have to make the tabs and add the controls:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim tabpage As New TabPage
tabpage.Text = "(empty)"
[code]....
I can't seem to get back into the account I used to post this question, so I have to post my follow-up to Tim's question in the comments for the previous answer as a new answer.Debug.WriteLine(TabControl1.TabPages.Item(2).Controls.Find("textbox1", True).Count) returns 0. The tab and the controls have been created prior.
View 2 Replies
Oct 6, 2009
I have a form that has many tabs and I have some buttons just bellow the tabs, but if I could move those buttons and place them inside the tab I would save some space bellow and I could extend on the tabs. So is there a way of moving controls from one tab to another depending which one has focus.
View 6 Replies
Sep 2, 2011
i am building a tab control (using VS 2010 and 4.0 framework). on Tab 0, this works as expected:
Me.ddUE_B1.SelectedValue = Me.B1.Text <-- changes the combo box selection to what is in the label.
on the other tabs this does not work. when I do a messagebox to show, say, Me.Ea1.Text on Tab 1, nothing is returned.
Is there an issue with referencing controls on tabs that I am missing? In general, I will need to set combo box's value to what is in the database when the form loads.
View 3 Replies
May 22, 2009
I am about dead certain that in VB Express 2008 that I was able to have multiple tabs. And, on each tab I put controls. I could also click on a tab and see the controls only on that tab.I am now in Visual Studio Pro and I cannot for the life of me look at what is on a specific tab. Only the first tab wants to shows its controls.Does anyone know how to enable the environment to allow me to view the controls on different tabs?!
View 3 Replies
Nov 3, 2009
I have a tab (created in the form developer) that contains about a dozen controls. I need to be able to clone this tab w/all controls. I have no problem creating the forms. However, the controls don't copy. This is true whether I create the new tab with a string:
TabPages.Add(MO.Name)Or with a tab object assigned to the base form:
Dim NewTab As New TabPage
NewTab = MyBaseTabPage
TabPages.Add(NewTab)
In either case, my first tab has everything it should have the other tabs have, the other tabs have only the tab name.Basically, I want to be able to clone my base tab into n number of tabs.
View 5 Replies
Jul 26, 2010
I'm trying to group similar items together, for example, the image below.
I wish to group the "apple" together and once it is grouped, I want the average value from the two values.
Here's my codes.
VB.net
Public Partial Class MainForm
Public Sub New()
[Code].....
View 11 Replies
Jul 22, 2011
I have a mouse click event for one of my controls. I then change the text of that control to something. I also have several other textboxes and want to do the same. How can this be done? I thought maybe this:-
Private Sub txtTitle_MouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles txtTitle.MouseClick, txtTitle2.MouseClick
End Sub
My problem is how do I determine which has triggered the event (title1 or title2).
View 5 Replies
Mar 19, 2012
If I have the following code, which adds combobox's to a tableControlPanel.How do I handle the index changing in the combobox?The second code shows what I am trying to do, except for multiple combobox's that are made on runtime.
[Code]...
View 4 Replies
Jun 22, 2009
I have a number of user control dynamically added to a page, and user interaction with these dynamically added user controls need to be handled by the control's parent. Is this what is referred to as "event bubbling"?How do I do that in VB?
View 3 Replies
Dec 6, 2011
I'm trying to add subs that will handle MouseOver events on textboxes that don't get created until after the program starts.
Each textbox gets created with a unique number attached to it like this...
AptTextBox0
AptTextBox1
AptTextBox2
etc...
Depending on how many are needed. But I never expect more than say... 15 at any given time.
Is it possible to handle MouseOver (or any events for that matter) if they don't exist until later.
I tried this but it didn't work....
I added this is the Designer code....
Friend WithEvents AptTextBox0 As System.Windows.Forms.TextBox
Friend WithEvents AptTextBox1 As System.Windows.Forms.TextBox
Friend WithEvents AptTextBox2 As System.Windows.Forms.TextBox
[Code]....
But it doesn't do anything. I don't get errors, but apparently it's still missing something to properly handle the events.
View 4 Replies
Aug 19, 2010
Handle EventArgs on Variable or Not Yet Created Controls
View 2 Replies
Apr 3, 2012
I have multiple user controls (the same one dynamically added to a form 4 times), and one class. I would like all of the user controls raise events in that one class. For example, if any of the user controls are clicked, I want it to send a string to the class to be processed and show a MsgBox "Control name was clicked"I am doing this as an exercise to reduce repeating the same code over and over directly in the control, and to avoid creating the class over and over to accompany each user control.
View 1 Replies
Jul 24, 2011
I want to make it so the array "tabs" are the prefix of the controls that i want to make invisible. I have this
[Code]...
View 5 Replies
Mar 16, 2009
I was wondering if there was a solution to replacing the tab control's tabs with custom tabs made in Photoshop. I know there are plenty of super expensive programs that can do it, but I was wondering if there was a way to do it programmatically. I was thinking that maybe it could linked in some way with a .DLL?
View 1 Replies
Mar 6, 2009
My code is basically a file parser/editor and it handles most files fine as they hold a handful of records concerning family members. However there are a few files that crash when trying to deal with them. Here is the problem.Each family member record creates 3 tabs that hold an average of 3 group boxes each. Each group box holds an average of 3 text boxes.So each member record creates 3x3x3 = 27 text boxes and some files get up to 289 family members which = 7803 text boxes.
The problem is the rare file with 400+ member records = 10,800 text boxes which causes a crash due to using up all the window handles. Each member has a separate tab page (with 3 subpages) but really only a dozen or so member pages are visible in the GUI with scroll arrows to move through them so I was thinking of somehow making the GUI a scrollable window so the tabs get built, displayed and disposed as the user scrolls left and right through the member tabs.
The files are parsed into a 3d list DataList(x,y,z) where x is the page number, y is the group box number and z is the text box number. So all the data is available. The code then traverses MyList and builds GuiList(x,y) where x is the page number and y is the groupbox number with all the textbox.text linked to MyList(x,y,z) locations so all text changes are reflected in the MyList.
I already have a memberCount variable and I am thinking of building, say, the first 30 member tabs with the middle 10 being visible in the GUI. If the selected tab > 20, then dispose of the first 10 tabs and create tabs 30-40.I am thinking I will keep all the member tab pages so I don't have to deal with inserts and indexing problems but just dispose all the group boxes and text boxes for tab pages out of view. I already have a deep clone sub that clones members when the user wants to add a new family member and I am thinking I will have to add something similar when a tabpage is passed in for disposal, it traverses and disposes each text box, then disposes the group box for each group box on the tab page.Additionally, another routine will rebuild the group boxes from the data held in MyList(x,y,z) when a tabpage(x) is passed in.
View 2 Replies
Apr 21, 2010
Is there any limit to the no. of handles assigned to an routine. Well actually my form form has about 80 controls and when ever the user press the enter key, focus must be to the next control. so can I handle all the 80 keydown events in one routine, or is there an better way.
View 3 Replies
Apr 9, 2009
The app Im working on is dunning on an embedded xp machine. It recieves input from the serial port from an industrial process, and then a backgroundworker class calculates and updates the single form GUI with the results from the process. Very simple.Now, the customer want to allow automatic download of log files by an USB memory. The process should work like this:
1)User plug in an usb memory
2)SHow a virtual keypad (touch screen) where the user enter a security code
3)If code ok, show a 3 choice screen, if not ok show error message and allow the user to try again.
4) If user choose the "export all" button, this choose form will close and i display another form with a progress bar that show how all files are copied to the usb memory. When this process is complete, I will display teh form that says "remove the usb memory and press ok to restart the application.
As you see here lots of forms are created and disposed based on user choices. My biggest issue here is that I have no clear design pattern to work from.For example.. should I have this "chain" in the main gui form, or should I let each form create the next form. For example on the "select action" form, when I press export, should this form create and show the "copy progress" form, or should all forms be created and destroyed from the main gui form?
Also, such an issue like with the password. I put it as a constant on the main form, to avoid "magic numbers" in the code. And then I ran into problem because the "keypad" form is created on another thread and I can't access the costant on the main form, so I got a cross thread exception.Everything starts when an USB memory is connected. And the OnConnected eventhandler is running on a different thread than the main UI thread. how to design this chain of window creation/deletion is greatly appreciated. I show all forms with the SHowDialog because I dont want the user to be able to close the form unless he/she presses a button. And not by accident press somewhere else.
View 2 Replies
Dec 16, 2009
I have a small databse program that reads a .csv or text file.
my code
Public Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
OpenFileDialog1.InitialDirectory = "c:"
OpenFileDialog1.Filter = "CSV Files (*.csv)|*.csv|Text Files (*.txt)|*.txt"
Me.OpenFileDialog1.FileName = ""
[Code]...
i am trying to Catch a data mismatch, if the user happens to select a .csv or text file but they arent of the right type of data. Dim result As DialogResult = MessageBox.Show("Wrong Data Type", "Data Error", MessageBoxButtons.OK, MessageBoxIcon.Stop)If result = Windows.Forms.DialogResult.OK Then
(not sure what to put here)
End If
Catch
End Try
I want to make it so that if the user selects the wrong file, it stops executing shows the message box , the user is only given the option to hit "OK"then it starts the openfiledialog click event again or stops and the user can open the filedialog again It seems that even though the ex is caught the rest of the code will keep running and from what I can tell from the documentation thats by design?
View 11 Replies
Nov 13, 2010
I have written a program that reads a 3rd party .txt file database. In one of the fields "City" the 3rd party adds a city abbreviation code. Example [code[The probelm is now the 3rd party has added an additional abbreviation Sacramento (Sac)(City)..They dont always have the addional abbreviation so I am trying to determine what is the best way to write a program that would handle the different situations.
View 10 Replies
Oct 22, 2009
(I tried with this question but this code isolates the problem better. I have this code:
Public Shared Sub PopulateTextFields(ByRef stuffList As List(Of Stuff))
Dim aStuff As New Stuff
For Each aStuff In stuffList
DoStuff(aStuff)
Next
End Sub
[Code]...
View 3 Replies
Sep 4, 2009
I have a standard windows application called winap. I have a com component which acts as an api to the winap. I have a class in winap call classapi which has all the methods that the api calls and all works well. The problem is that one of the methods in my class api needs to get a handle on form elements in the main worker thread. Whenever I try to access an existing form I keep getting null because the for exists in the main worker thread and my api call is in a seperate thread.
[Code]...
View 5 Replies
May 20, 2010
I know how to check whether an item exists in a list using (MyList.Contains), But I do not know how to check the whole list. For example (use one button and one richtextbox):
[Code]...
View 14 Replies
Feb 17, 2011
I am a student and i am making a windows application in vb.net 2005. My project requrement is to print form's specific area and also provide left, right, top and bottom margin. Itwill also print in multi page if it require. For that i used Microsoft Print
View 6 Replies
