I am Creating a sales voucher.i have 2 labels Namely lblHilight0 and lblCount0 and also 6 textbox namely txtNameOfItem0, txtActualQuantity0, txt BilledQuantity0, txtRate0, txtAmount0 and txtRemarks0..All these Controls are in a Panel named PanelItems..The AutoScroll Property of PanelItems is set to True..when any key is pressed in txtremarks0 the new objects are created as follows [code]when i scroll down and up and then if i press a key on txtremarks(i) then it leaves spaces..
I have a form with many controls that are binded to a datasource. when some of these values change, they impact aspects of the form itself like the backgroud color or the title. There is a filter applied to it so it only displays certain records (this is important).when I change something and save the data I need to update the filter to show all the previous records plus the current one.All that works great, but the problem is: saving the data or changing the filter makes the controls take a new value based on the new record and go through the subs that each one have to modify the aspect of the form. This happens because if I save the data first, then the current record does not conform to the filter and all the data in the form changes, or if I change the filter first, we go to the first record of the set.
After that I return to the correct record and everything looks fine, but going to all the changes makes the app halt for a moment.Is there a way that I can stop the controls in the form form updating to their binding data while saving or changing the filter in the bindingsource?
I have explicitly provided tab stop information, and my form ignores that order at runtime. where i have 1, 2, 3, 4, 5, ... , 13 it goes 6, 1, 2, 8, 3, 4, ...tab stop = true on all of the applicable controls, no labels have tab stop = true...?
I'm creating a hierarcy of folders where we have a standard group that have modify access on root and level 1 that is set to apply on this folder, files and subfolders. When I create a special set of folders in level 2 I don't want the default group to be inherited (only administrators). The new folder wil get new access from a new group in AD.My chalange is to stop inheretage on the new folders on level 2 in VB.NET.
it seems that every Excel workbook I create in Vb, Excel automatically creates a ghost book with the name Bookn.xls where the n is incremental. After a lot of processing, I could have 20+ blank books open and running in taskmanager!
I have a VB.Net WinForm Program. I dynamically create panels with controls.Each panel has:
2 Labels 1 DataGridView 1 Button
Everything works fine the first time I create the panels.
Everything gets created, and everything is functional.
If I have to re-create the form, I get rid of the existing panels (and their controls) with this code:
[Code]...
When I re-create the panels, I get the panels and all of their controls except Buttons.When I step through the debugger, I see the buttons being removed, and I see them being created, but they don't appear in the panel
I need to be able to refer to a set of controls on a Windows form using an array, but I'm having a few difficulties.
The Windows form (WForm.vb) contains two textboxes (TextBox1 and TextBox2).
In Module1.vb I have created an array reference to the textboxes thus:
Public wf As New WForm Public ReadOnly TB() As Control = {wf.TextBox1, wf.TextBox2}
Then, in WForm.vb I have tried to refer to the textboxes via the array:
eg.
TB(0).Text = "Change text to this"
I know that the array is referring to the textboxes, because when I hover the cursor over the line 'TB(0).Text = "Change text to this" ' in debug mode, I get the following:
(0)|{Text = "Change text to this"} (1)|{Text = ""}
but for some reason, the text in TextBox1 on the form isn't actually being changed! (There is obviously no problem with change the textbox's text at this point in the code, because I've tried substituting the array reference 'TB(0)' with a direct reference to the textbox 'TextBox1', and the problem disappears.
Let's say I wanted to create 3 panels(Panel1, Panel2, Panel3) at runtime, and create a label(Panel1Label, Panel2Label, Panel3Label) inside each panel. This far I know how to do it.
The problem arises in that I don't know how to write a Sub for the event of clicking one of these run-time created Panels or Labels. When I try with
Code: Private Sub Panel3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Panel3.Click ...it tells me "Handles clause requires a WithEvents variable defined in the containing type or one of it's base types"
Also, if someone could teach me how to use some kind of array to create these controls at run-time, I'd love it, considering I may need to create up to 50 of them at some point.
I have a program that utilized a numericupdown control. When the numeric value = 1 then it displays 1 text box on button click When I add this code
[code]...
Trying to multiply the boxes it creates by 2, it doesn't work. How do I utilize multiplication to create multiples of my new textbox control? (the error I get, just in case it is needed is "Operator '*' is not defined for types 'System.windows.forms.textbox' and 'integer')
I am having some problems adding controls at runtime, or I guess I should say accessing the controls after adding them.The application starts off with a tab control named "tabIncidents" and one tab for an incident information. The user can click on a button to add a client. When the button is pressed a second tab is added to "tabIncidents" named "Clients." On the newly created "Clients" tab another tabcontrol is added named "tabClients" and we create a tab named "Client". Multiple "Client" tabs can be created on this tabcontrol. Each "Client" tab gets a usercontrol added named "clientInformation" which has name and address textboxes.
So basically it is ...
TabIncidents.tabFirstTab (already exists) TabIncidents.Clients (new tab added at runtime if user clicks a button) TabIncidents.Clients.tabClients (new tabcontrol on the new tab)
I'm developing a Silverlight application where I want to simulate a console. There are a lot of ways to represent this - StackPannels, grid of TextBoxes, etc - and I was wondering what the bets fit would be?
Display an 80x20 grid that scales based on parent size Be able to update an individual cell's character Be able to set a cell's forground and background color
I am writing an application that requires button controls to be created at run time because the amoutn of controls created depends on data retrieved from a database.
I believe I am creating the control properly but I am not capturing the click event.
Code example:
Dim myButton As Button myButton = New Button myButton.id = "id"
I want to create a Panel dynamically on the form when a button is clicked. Also labels with given TEXT are also to be created when create label button is clicked. then we should be able to print the form contents as it appears but without any buttons. We should be able to resize the panel to adjust the page size.
I know how to create a control at runtime e.g.[code]Can anyone tell me how to create multiple instances using a for-next loop? e.g.[code]The part I can't work out is how to give each new button a new name... like button1, button2 etc
I am new to VB 2008 having spent most of my time in 2003. What is the recommendation for the best place to get a primer on creating custom controls in VB.NET. I prefer to use VB directly and not the WPF.
I have a panel that is a set size and has its Autoscroll property set to True.I am parsing text files and then adding them to the panel. I'm extracting specific lines and then adding them to labels and text boxes that are in the panel.When my app runs, it can parse anywhere from 0-10 files at a time.If there are no files to parse, I don't want any controls in the panel. I'll be creating the controls based on how many text files I have. For each text file, I'll have 3 controls.
I'll count the text files before I parse them, and insert the controls into the panel.The problem is that I don't know how to place the controls based on the location of the panel/form. I know the panel will always have a permanent spot, but I won't know if the location parameters of the panel have changed because I won't know how many controls there will be before the app parses the files.
However, I will know the size of the controls that I'm inserting.So, with all of that, is there a way to insert the controls inside of the panel, and then based on that information, insert the others?
The editor basically uses a bunch of labels and pictureboxes (for now) and then an image is created from the panel which contains all of the controls.It sounds quite confusing, but basically i'm trying to create something like visual studio itself, which will allow "controls" to be added onto a panel, and then everything can be exported as an image when the user chooses to.I've worked out all the code to move controls and exporting the image, just having trouble trying to work out how to add an event for newly created controls as you can only handle a control, and not a variable.
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)
I got this whole thing pretty well down (it's actually quite easy), but I've seen custom controls created where you can click that little arrow on the top-right corner and add things or change things about it.
How exactly is this done? I'd Google it (which is why you don't see me post here too often) but I really don't know how to describe it.
I had been searching as to how I could create an array of controls dynamically, and after some searching found some helpful code as shown below [code]This way in the above code "structureComboBoxes" will have an array of comboBoxes (VB6.0 was way easy to get this crap done!! I guess its cleaner here)Now my next problem is How do i code for events of each of these combo boxes?
I am creating an array of customer controls by doing the following: Dim CtlLosArray(150) As Control
Then I'm setting up the first control in the array like this: CtlLosArray(1) = New ShieldLOSInfobox CtlLosArray(1).Location = New Point(0, 0) CtlLosArray(1).Visible = True CtlLosArray(1).Show() CtlLosArray(1).Name = "Label1" Me.pnlLOS.Controls.Add(CtlLosArray(1))
Now on this custom control I have a panel and a few text boxes and as you can see I may be adding about 150 of these custom controls. What I am wanting to do is to be able to access that control then the item on that control based on the array. Something like the following: CtlLosArray(1).Controls.Item(Panel1).backcolor = Color.Yellow But the above does not work. How I can access a specific item on the customer control within the array?
Is it possible to create instances of controls on a form ? Of course I mean visually , not just by code. After all, these languages define themselves as "Visual" so they should provide that possibility. It is important for the instances to be visible during design time because otherwise we could only guess where those controls might "land". Nevertheless , I have the feeling this is not possible in VB .NET but still I thought I should ask first ...
I need to create some serial port controlls manually. My program reads through a config file, and it if comes across an entry called COMPORT then I need to create a contol to talk to this port. The entries in the ini file might be
COMPORT=COM1 COMPORT=COM3 COMPORT=COM7
So here is my problem! I'd like to create the variable control name with part of the com port number, so I can always refer back to it. EG.
Dim strVar as sring = "COM1" Dim CName+strVar As New System.IO.Ports.SerialPort
So i have a Panel which on Mouse Enter and Mouse Leave i change the visibility of some controls which are docked inside it. Problem is whenever I hover over a control within the panel the Mouse Enter then moves to that indivual control and thus they are made invisible. Is there any way i can make this work without having to code these two events for each control within the panel?
Can anyone point me to a good tutorial for creating custom controls. I want something that is actually understandable.I have gone through a few but nothing really any good at this point. I want to create my own contol that uses its own look and not just modifying a windows control.
