I have an application in which the windows form has 3 panels. Under some circumstances, controlled by the User I want all three panels visible, in other situations I want one of the panels not visible.
The program works if I use the code:
Panel1.Visible = False
Panel2.Visible = True
The program also works if I use the code:
Panel1.Hide
Panel2.Show
Is there some advantage or disadvantage to either of the two approaches?
Is there a way to hide all panels on a form?
View 2 RepliesSo I'm NOT trying to programmatically hide panels.
I have a LOT of panels within my program. I programmatically position and show/hide them based upon user input.
The problem is there are so many panels it's making it hard to work on them to add content, buttons, checkboxes, etc. I need a way to make them not show in the VB IDE.
I am attempting to construct my own date picker using code from several sources.
Why won't the calendar hide when visible?
myDate.ascx
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="myDate.ascx.vb"
Inherits="Website.myDate" %>
[Code]......
i was wondering this: what is the difference as in response.. should i use the .visible or the .show/.hide option.. by setting the .visible to true/false, the controls (in my case) will only appear visible or not.. by setting them to .show./hide, i guess they unload from the form, and reload in their previous state.. do correct me on this .. is this more memory use than the .visible option or the other way? i am currently designing a project containing a lot of panels/buttons/etc., that has the .visible option included for these controls. should i be using the .show/.hide option instead, or does it even make a difference, since i cannot tell from the response of my project when using either/or..
View 8 RepliesI have a form (Form1 class) which has got a "next" button (like we have setup wizards) which shud take me to other form. Now that other form has two buttons , next and back , and it shud take me to the previous and the next form. And I want to preserve the states of each form. What I did was that I instantiated the Form2 class in the click event of the next button : [code]That does the job of showing the second form . In the click event (of the back button) handler of the second form , I have the following [code]Now , when I press the back button , the program hangs. And nothing happens. how to hide/show forms with .NET. In VB6 it's quite easy using Show/Hide methods.
View 6 RepliesI want to be able to click on one toolstrip button and hide it while making another visible.I tried the .show and .hide expressions but they come up with an error.
View 4 RepliesI'm trying to make custom ListBox with some graphics. Base is ItemCollection - each item contains Panel, 2x label and 2x picturebox. What each panel have to do:
- Change backcolor on MouseEnter and set color back when MouseLeave occurs.
- On MouseDown(LMB) - Panel stays "selected" - different color.
Problem: I can't access multiple panels at a time(and I need to), just one via sender as in function. Of course, I can do it hacky way, but I want to do it effective and regular. Is ItemCollection the right solution or should I do it just like an array of panels? Also I want them in one "box", ItemCollection is good for it.
Second "problem": I need to make labels "merged" in panels, when i MouseEnter them(labels), background color on that panel sets to my default color. when i MouseClick them(labels), nothing happens (need to "select" parent panel). It can be again fixed with hacky way, just disable labels - but then the colors of labels are unchangeable.
I've got a panel - that's in a group box. All of this - with lots of other textboxes on labels - is in another panel (the big panel).I make the big panel visible and not visible based on selections made by the user.This small panel - that's in the group box. I cannot seem to make it appear.Even if I leave it VISIBLE at design time - the objects in it will not appear.Is there some kind of nesting problem that I'm not aware of!
View 9 RepliesI have five menu items that i have created as a user control and placed on the master page. Now i want one of the menu items to be visible only for particular user role and not visible for others. Here is what I did. Its not working though.
[Code]...
I'm having an odd problem when making a form visible and not visible and it not continuing to function. Here is what I have happening. I have a main form (frmMain) that is an MDIParent. On this form I have a menu to open a second form (frmCalculate) and populate a listview from Items in the database.
As I click or select items in the listview on frmCalculate the tag is read and data is pulled based on the id stored in that tag and fills in various fields on the form. This works great. However, I also have a context menu attached to the listview that allows me to perform a "what if" scenerio on the items I am calculating. When I select this menu, I hide the frmCalculate and open the frmWhatIf form where I can mess around with values on the item I had hilighted in the listview on frmCalculate. Nothing is pulled from or written back to the database here, all the information is filled in from fields on frmCalculate. It just allows me to look at rising costs and how they will affect my margins.... anyway.
If I then close frmWhatIf, it brings my frmCalculate back by setting its visible propery to true (never closed frmCalculate, just hid it). At this point if I click an item in the listview I get an exception for a null reference. IF however I never hide frmCalculate, I can open and close frmWhatIF without ever having an issue. Why do I lose the functionality to select items just by hiding and unhiding the form? As a test I added two menus to the toolbar on frmMain one called hide and one called show. I then opened frmCalculate with original menu item to populate the listview and selected a few items to test that it was working and then using the hide menu I made the form invisible and the show button to bring it back. This yielded the same exception so without even opening frmWhatIf the problem still occurs.
I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:
Dim picLight(2) As
Boolean
For intX
[code]....
I'm curious if it is possible to hide a group of text boxes from view in a form until a particular condition is met, and to have a custom set of text boxes for that condition. To give an example; I want radio buttons offering choices for a manner of searching records, the user selects one and then a specific set of text boxes are displayed for the user to utilize, if a different option is chosen a different set of text boxes will be shown. Is this something that can be done?
View 7 Replieshow to hide exe into task-manager in windows 7 using vb.net windows application?I want exe is hide into task-manager in windows 7 & windows vista machine using vb.net(windows application)
View 3 RepliesIs there a way to to hide the taskbar o.o and unhide it?
View 1 RepliesBelow is the exception code info. when I try to make form visible for the first time from another form then I get an exception code. something like 'a required variable not set'
Quote:
CODE:
There are two panels A and B in a form horizontally, same size. Panel A archors with top,bottom, left and Panel B with top, bottom, right.When the form changed, the gap did.Panel A archors with top,bottom, left and Panel B with top, bottom, right and left.When the form changed, the gap doesn't, but only Panel B came bigger, Panel A didn't.Have you a way to keep the gap and the two panels can change in same time when the form changed?Must calculate the size of panels within Form's SizeChanged Event?
View 7 RepliesI have a form which has two panels each containing there own controls (Pnl1, Pnl2). By Default I want Pnl1 to show and Pnl2 to be hidden which I have set but I want Pnl2 to sit ontop of Pnl1 so when Pnl2 is selected Pnl2 is Visiable and Pnl1 is hidden. Therefore Pnl2 and the controls sit in the same place as the controls in Pnl1. I have got everything lined up but as I move Pnl2 over Pnl1 to sit ontop, Pnl2 is moved into Pnl1 and becomes a Panel within the Controls of Pnl1. Therefore when I hide Pnl1 everything is hidden as Pnl2 is part of Pnl1.
View 1 RepliesI am working with tab controls (tab1, tab2, etc) I want to more than one panel in tab1 and switch between them using a button. My problem is working with more than one panel in tab1. This is an educational program i am working on for schools in the Dominican Republic.
View 1 RepliesI had a form with four panels all have the same size and location I switch between them using .BringToFront
what I need is a transforming animation between them , can I do this with vb.net 2010
another explain I want somthing like fade effect when I change the visibility of a panel and show the other one and if I cant do this with panel control or vb.net windows forms ,
i want to make a Application Who Show Panel One By One or Visible =true one By one Like Panel1.visible=true & allpanels.visible=falsei m using 100 Panels how to make possible like this [URL]..
View 7 RepliesI like to use pop out panels that would just slide but sometimes it looks bad. is there a way i can fix it to make is as smooth as possible?
Here is the code i use:
dim pp as new point
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
pp = Panel1.Size
End Sub
[CODE]...
How to randomize the panels?
and if the panel reached about 5 randomizing, it will stop randomize..
I am adding controls to form at run time.I am doing the following with no problem:
[Code]...
I am trying to stack panels on top of each other, but they keep becoming children of the one I put them on top of. I am stacking three panels. I want to show each based on certain criteria. The showing and hiding works if they are not directly on top of each other. However, I would like to have them on top of each other. They are all exactly the same size and same position
View 2 RepliesIm working to develop an application thats going to run on some not-so-good as performance PC's. The application is done in VB.NET and i encountered some obstacles during my work.
The idea of the application is to allow the users to slide through some pages when they click with the mouse and drag (while the left click is pressed) to right (for browsing to the previous page) and to left (for browsing to the next page). Every page contains 4/6/9 panels with 4/6/9 pictureboxes with some gifs as images.
The issue is that when the user drag with the mouse to browse to a page, the panels and the pictureboxes jerks around when they are moved.
Here is the code that handles the slide part
If i + speed < 1024 Then
For j As Integer = 0 To nrOfGamesInTotal - 1
totemGame.gamePanel(j).Left = totemGame.gamePanel(j).Left + direction * speed
[Code].....
I'm having a bit of trouble creating draggable panels that will stay on top of all the other panels and not 'hide' behind them. My code for dragging works fine, I just need to set the layer of a panel to the top of all the different controls
View 1 RepliesI want to make a form with two panels. I one panel have eight circles that represent leds.And have a but to start turning on the firdt, then turn it off and turn on te second one, and so on.
View 1 RepliesTo save from using several different forms in programs. I'd like to make just a few panels to represent each one. Then when I need to display one I just set it to visible or not visible.
For example, a quiz program. The 1st 10 questions are on one panel, the 2nd 10 are on a 2nd panel. They are both identical except different questions.
The problem is, when I try to put them both on the form, they have to be in different areas or else one will go inside the other. How can I keep several panels on one form without them going inside each other, in other words how can I keep them separate?
I have here another question. I have a panel with about 20 different panels inside of it. There is a "mouse move" event for panel 1, How could I make is so if the mouse is over 1 of the 20 different panels, Have it display the panel name? I would paste source but that's why I'm posting here.
View 1 Replies