.net - Removing Controls - Lot Of Buttons On A Form (144) That Need To Be Removed
Mar 11, 2012
I have a lot of buttons on a form (144) that need to be removed. All their names begin with "R". So I used this piece of code.
Sub RemoveBookingButtons()
Dim cntrl As Control
[CODE]........................
However whenever I run this sub function, it deletes every other button starting with "R". better code or point out if the flaw is in that piece of code or it is hidden somewhere else in my program?
I've removed a few controls from my form, but they're still in the properties. I've looked in the Document Outline, but nothing. How can I remove them (save)?
I'm developing some code to detect new files in a directory and signal it in a new thread through the Created event of FileSystemWatcher. While testing this I noticed that after I removed the eventhandler from the event the thread that was being used was not closed. Why is that? Am I doing something wrong when I'm removing the eventhandler? [code]So first I start off clicking Button 2 to start the event handler. I copy a xml file to the Temp folder and the event will trigger and set the name of the thread. After that I will click Button 1 to remove the event handler. If I then pause the execution the Thread "UpdateSomething" will still be there.
I have a query about dynamically added controls to a form. I have a series of buttons which are created and added at run time. I have a two drop down lists and two buttons which are created at design time. Button 1 creates a series of buttons called "Test 1.x" based upon the selection of the two drop down lists. This works fine and am happy with the logic.However.... Button two should remove all the dynamically created buttons from the form.This does not happen. What does happen is that 50% of the buttons are removed starting with the first one. WHen checking the loop it only enters the loop half the amount of times that there are buttons. Very strange. When the loop is run repeatability it will remove all controls. Why will my logic not remove all the dynamically created controls at once? What is wrong with my logic?
I attach two code snippets and the .net file for your consideration.Button method which creates the dynamically created buttons from the two drop down lists and adds to form
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim Count As Integer Dim MaxHours As Integer
This is my first post here as I am in the process of writing my first vb program. I just recently learned VBA and prior to that I had no programming experience. I decided that my first attempt with VB would be to convert a program that I previously wrote in VBA. It runs in an excel workbook but it doesn't actually use any excel functions so I figured it would be acceptable to convert. I am having an issue with removing controls on a userform. A commandbutton adds a line of about 6 controls. The user can add as many lines as they need to input their data. One of the 6 controls is a delete button that deletes the line of controls next to it. I have created a collection named Cashflows that holds each line of controls and each line of controls is named with a number that indexes the name to the line that it appears on in the form. In VBA I use that number to delete the actual controls from the userform and reposition and rename the remaining lines of controls.
Private Sub Delete_Click() Commandbutton3sub(CInt(Right(Delete.Name, Len(Delete.Name) - 6))) End Sub
My VB application is behaving strangley. I have form with fairly large number of controls. I am using case against radio buttons. after curtain number of buttons, it stops responding to more radio buttons.
Then I tried to split controls in to 2 form but now my form.showdialog() too now working properly. It takes new from names but show the old form when running.
I want to print a fully decorated form having radio buttons,combo box,checkbox and so many other controls with vb 2008 in a A4 sheet, I dont want to use print form utility given in power pack since the print resolution are very low.
I need to remove all the buttons in my toolstrip so they can then be repopulated. But I have no idea how to remove them. I tried using a For statement:
For Each ToolStripButton In Mainwindow.FavouritesBar.Items() Mainwindow.FavouritesBar.Items().RemoveAt(Mainwindow.FavouritesBar.Items().Count - 1) Next MainWindow is the name of the form that FavouritesBar (The ToolStrip) belongs to.
I am calling this from another form, but I keep getting a "Collection was modified; enumeration operation may not execute." exception.
We are developing an application that looks like this: Mainwindow - PaneGroup - Pane
What we want to do is add a handler (AddHandler Pane, AddressOf MethodName) on the mainwindow and throw the event in the Pane. When we want something to change on a collection in the mainwindow, we throw that event in the Pane.
My question is if the pane is removed from the panegroup (doesn't exist anymore), does that handler still live on the mainwindow?
I am dynamically creating buttons on a page, and want to be able to remove only certain block of them. I have no clue how to do this.. Right now I am clearing the WHOLE form and then redrawing everything.
Here is my code I am using to create.
Dim Buttons(99) As Button Dim cmd As New SqlCommand(strSQL, oSQLConn) dr = cmd.ExecuteReader()
I am wondering if anyone has any idea how to make the controls stack and fill up the available space left by a control if the control is hidden or removed from the UltraGridBagLayoutPanel.
If I hide [Textbox 3] as of now, it will disperse the space left equally and pad the remaining text boxes with the space. However, I would like it to do this...
[Textbox 1] [Textbox 2] [Textbox 4] [Textbox 5]
Where all the text boxes will move up and [Textbox 4] will completely consume the space left by [Textbox 3].
I have 7 Windows forms.The order of the forms is defined within a configuration file.I want to place buttons on each form that will show the next available options.The Next button will move the next form in the list.The Back button will move to the previous form in the list. The Finish button will execute the final piece of code.The Cancel button will exit the application.If the user is on the first form, then there is no Back button.If the user is on the last form, then there is no Next button, but there is a Finish button.
im building an application using vb 2010 in which around 2000 labels are loaded on runtime. these labels are loaded and unloaded periodically.the unloading process of 2000 labels is very slow.guide to remove/unload 2000 lables faster.here is my code to unload labels.
For i As Integer = thisControl.Controls.Count - 1 To 0 Step -1 Dim LabelWhichShouldBeRemoved As Label = TryCast(thisControl.Controls(i), Label) If LabelWhichShouldBeRemoved IsNot Nothing Then[code].....
The first sub is for adding the (custom)control, the second sub is for removing the control.
The custom control is a picturebox with a checkbox in the upper-left hand corner, no big deal.
The problem is that when I click the delete command, it only deletes one ckPicture at a time, and allways the last one in the list. I'm also assuming it's doing the same thing in the list(of images). What should I do differently so that it will remove all controls that are checked?
I'm using this code to remove controls from a panel.vb.net For Each c As Control In Me.pnlDevices.Controls Me.pnlDevices.Controls.Remove(c)Next
but somehow it doesn't remove all the controls at once, I have to run the code 3 times to remove them all(there is about 20 to 30 of them, mainly labels I don't know if it matters, but the controls where added dynamically at startup...
I Put together this bit of code. What the problem im having is Removing a Label after i place the code its in a select end slecte code . The Problem is in red.
the code
Dim Animals As String = (TextBox1.Text) Select Case Animals Case "Apples"
[Code].....
Everything works Accept the remove selection ... I think it has something to do with Dim LB As New Label() ... And ... Me.Controls.Remove(LB)
I'm making quite the complex program, and while I try to figure out some more advanced methods that work better for what I'm trying to do, I'd like to learn how to do this (which is a bit of a roundabout method to what I've been trying). I'm wondering, how can I programatically create and remove objects? For example, I have webbrowser1. I want to remove it and create another webbrowser that I will also name webbrowser1. (therefore, the instance of the original must be removed)
What's wrong with the following code? I'm trying to remove some radio buttons that were created dynamically but the controls' names are not being picked up by this code (only the name of the type of control).
I have a problem with a bit of code that is supposed to delete every controls on a form appart from the 2 first controls
vb2010 Private Sub ClearCheck(ByRef Container As Control) Dim ctl As Control Dim Boxtype As Control Dim i As UShort = 0
[Code]...
The behavior is strange, I can't find any logic to it, it will sometime delete a part of the objects, other times it will delete other part of the objects. If I run it more than once, I can achieve the wanted result and remove all controls except the 2 I want to keep. It's as if it was checking 1 out of 2 controls.
To give you a better idea I have a combobox on the form and depending on choice it adds appropriate controls (not show/visible true) and add a second combobox to refine the search. If I change the value in the first combobox I want to remove the added controls from the previous combobox.SelectedIndexChanged as well as any control created by the following combobox from the form.
If need be I'll post the code that creates those new controls, but it's quite long so I didn't include it in this post
I am working with my project and I have difficulties in my program. This is the set-up: I put a textbox1 and a button1 in the form, textbox1 is for the property of the label text to be add when I click the button1 I have another textbox, label and a button,I want the added button to remove the textbox, label and if possible the button itself, is there a way to delete a control by the added button?
I drew a Group Box around a bunch of controls cause I wanted to the Box, meanwhile all the controls are glued to the Group Box. How can I remove the Group Box without removing the Controls?
As i'm learning more and more about developing ive just got my head around creating classes and modules, i started wondering about something to do with configuration of applications where deployment is in a more diverse environment say in a company where different branches dont need access to all parts of a program, so i thought id throw the question out there in a basic sense and get some feedback. so i can go off and do some more reading and learning.
So the scenario in my head is like this.
So we have for arguments sake FrmConfig which is the master configuration form, then we have FrmMain which is the root menu our application general user interfaces with. So here based on what options are checked as enabled in FrmConfig effects what controls (like buttons/menu options) are enabled in FrmMain.
I'm using a dialog form with two buttons and two Radio buttons.I'm oppening this Dialog when a button is clicked on the parent form.My situattion is when the Dialog opens the code in the button event continues to execute, but I only want it to continue to execute only after a button from the dialog form have been clicked
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click If multipleEXT = 2 Then Extension.Show()
I have a PlayStation USB controller and want to discover how to test the buttons and controls on the device from vb.net. Is there documentation anywhere on how to get info from a usb controller? I'm not even sure which department or category this falls
I'm using a repeater ListOfArticles and have controls inside it like ddlSizes and btnSelectArticle. Normally you can just double click the control and in the aspx.vb page you can specify an action. I have heard something about Findcontrol, but can't figure out or find much information that I understand. I don't want to sound like an ass, but I would really prefer help for the aspx.vb page and not in C# or Javascript.
An example of what I'm trying to do is, once you've clicked btnSelectArticle the label lblSelection receives the following values Amount: txtAmount - Size: ddlSizes.SelectedValue.
i try to make an array of controls and by clicking buttons add new textboxes or comboboxes here is my code
Public Class Form1 Dim CArray() As Control Dim lngArrayNum As Long = 0
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Add_Control()End Sub Private Sub Add_Control(Optional ByVal intType As Integer = 0)
I am building a program that does inventory control. I have multiple forms connected to same database. One of the forms I have a search function. When I was using the controls at the top of the page, it was working. I added buttons for the controls and now the database wont store anything. I can open the input form and I can add multiple inputs, close the form, open it back up, and nothing left in the database. I have also noticed that my database icon in the data source has a small red X in it. When I click on the icon, it is showing the db as closed. I can refresh it and it opens, until I run the program and it closes.
but I'm finding it impossible to work with the html controls, i.e get their .text value from codebehind, or adding events! better way to replace the html with suitable asp.net web controls or from the codebehind and output it.
