I'm developing a GUI for a touchscreen, so when user wants to scroll he/she uses their fingers. Now the thing is that the scrollbar width (with the vertical scrollbar) IS adjustable but the button stays the same height and isn't sufficient for a finger. So the question is : Are the buttons in the scrollbar allso adjustable in size/dimensions.
[Code]...
How can I add a scrollbar to my form I tried the auto scrollbar option but is not working ??
How can I validate the user inpute inside a textbox to check that he type the desired word?? for Example validate if the user typed the word ( Bob)?
Is there a way to make custom scollbars in listview? And could someone please show me how, step by step. I'm completely new at this
View 2 RepliesSo, in my vertical scrollbar, the maximum value is 16. In my application, I made a Label to track the scrollbar's value, just for testing purposes.I noticed that when I move the bar to the bottom, the value is 6. And when a release the button (stop holding it with the mouse), the value becomes 7.
Something similar goes when I move the button to the top: It is 1, and when I release the button, it becomes 0.That's a bit weird, but what mainly bugs me is why I cannot reach value 16?
The scrollbar that comes with the ListBox is too small for touch screens, so I use my own scrollbar instead. But when you do this on various forms you end up repeating a lot of code. So my solution was to create a custom scollbar that has a property I can set to the control I want it to be a scrollbar for. In vb6, I can use the withevents keyword to get access to the control's events so that all the scrollbar related code can be in the custom scrollbar object I created, except...I had to create a refresh method for the consuming code to use to let the scrollbar know when the number of items changes. The scrollbar doesn't need to be told how many items there are because it has access to the control, but for a listbox there is no event to tie into when an item is added/removed so not 100% of the scrollbar related code could be encapsulated.
View 2 Replieshow can i calculate the width of a circle at top + 1/3 height & top + 2/3 height?
View 5 Replies[URL] This is for vb6, and I know this is a .net forum, but hopefully some one may know the answer as I have tried countless other places. The buttons appear properly after they are clicked or issued a .refresh command.
View 1 RepliesOk..I think it's very simple but I'm still a begineerI'll try to make it clear I need to draw a rectangle when I click on the button..what is the required code?
Quote:
Public Class Form1
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
[code].....
I plan on using a scrollbar for, well, scrolling an image. The image is 200x500, however, the only visible area is 200x250.
So I set the max value to 250, and the min value to 0. The idea is that if I drag the scrollbar's button to the bottom, 250 pixels will have moved for the image, right?
But wait, the scrollbar's button is.... very small. And the scrollbar is actually pretty long. Is there a way to make the scrollbar's button longer?
I was wondering if there is a way to have a button/label that would change the selected item color of the combobox from the standard black into a certain color (say green), but not change all of the items' color into green. This is for a to-do list type of application where a user clicks the button to signify that the current item is finished..This is what I was thinking (not in VB code) When button1 is clicked, combobox1. selecteditem. color = green
View 1 RepliesThis is VB 2008, under Vista. I can't seem to change the background color of a button without the gradient disappearing.Strangely enough, you can even set the background color to itself and the gradient disappears. How do you keep the gradient but change the color?
Here's an example:
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Button1.BackColor = Button1.BackColor ' This should do nothing!
[code]....
I can tell when the user clicks on my picturebox. Can I tell which mouse button was used? Left or right?
View 1 RepliesI have a form with buttons, and the user can change the colors of the buttons with the color dialog box for fun:
Button_Play.BackColor = ColorDialog.Color
There is a reset button to put the colors to how they were without any special coloring, but I can't get them to go back to how they originally looked.They go to gray in the middle, instead of the nice shaded blue/gray style. I have tried a few different things:
Button_Play.BackColor = Button.DefaultBackColor
Button_Play.BackColor = SystemColors.Control
Button_Play.BackColor = Color.Empty
I am using VB '08 Express on Win XP with the Desktop, Display Properties, Appearance, Windows and Buttons: set to Media Center Style and Color Scheme: set to Energy Blue. how to (with this theme) get the button to look like default after changing the color?
I need to visually moves the cursor using keyboard keys.
1) I need to get the mouse to where the button is
2) Simulate the mouse movement to the button from whereever it is
3) and simulate a button click.
Only after I select a button I can start drawing on my form. I have a code here, when I hold the Ctrl key and press the arrow keys, the mouse will start drawing straight lines. But what happen when I need to use controls like buttons, comboboxes etc.?
i want to make a class for a custom button for which the user of the class can choose his own images for Normal, mouse over and mouse down state.
View 5 Repliesim making a program that needs to make a new button for each .exe file in a directory? Kinda similar to PortableApps program that will recognize each program in the directory.
View 3 Replieshow to enable the "import" button when at least one of the checkboxes is checked.I have two buttons : "Deselect all" and "Select All" for the checking of the boxes, to import the specific files' data they want to Excel. (the files are in listbox, and the checked boxes is for selecting the files' parameters that they want to see in excel)
One option:When the user deselect all, the "import" button is suppose to be disable to prevent the user from importing the files' data parameters.
2nd option:(if i do not want to disable the import button) or show message that they have to select at least one box and at the same time, prevent the import button to work if there's no checked checkbox. So my deselect all button code :
Code:
CO2checkbox.Checked = False
NH3checkbox.Checked = False
DBcheckbox.Checked = False
[code]....
but the button still remain disabled if I click "unchecked all" button and then checked at least one box. how do I enable it?And how do i...show error message and prevent the files' data to be imported when the user click "import" when there's no checked checkbox if I choose the alternative option of using message to alert them without disabling the button and yet prevent importing of data?
PS: If I did not click "deselect all" button but click the "select all" button, the import button is enabled and working.
I'm trying to find a script to create a slider button.
View 2 RepliesI'm using a RichTextBox and wondered if it's possible to change the height of the horizontal scrollbar. I don't hve much room to fit the RTB so I need to reduce the height of the scrollbar.
View 2 RepliesWhen a button is focused by pressing Tab key, a rectangle appears on it. Even if the button's TabStop property is set to false, when the button is clicked with mouse the rectangle appears. Is it possible to
stop the rectangle from appearing?
I need to disable a button after its pressed so the user does not have the ability to click it again as this would replicate the process in some cases. After alot of searching I found some tips - alot of code I found I could not understand.This is what I have come up with:
[code]...
I also read somewhere that I should use: System.Threading.Thread.Sleep(1000) to delay the process or something - not entirely sure why I would do this though.Although, the problem with my above code is that when the code behind page performs validation checks, it exits sub before executing my INSERT SQL code - so when it does this it also disables the button.I am not entirely sure if the above method is fool proof or whether it is a **** piece of code that won't work 100% of the time.On another website I found a script to put on the actual HTML page with <script> tags:
[code]...
But although this works, it does not execute my VB code in the code behind page so I am a little confused where to go here.
I have been asked to create a program that displays the height of 3 diffrent people via a scrollbar. The problem i'm having is i don't know the code for getting the total from the scrollbar to display on the height labels .The labels are named lblheight1 lblheight2 lblheight3 Scrollbar is named vscheighttotal?
View 5 RepliesThis is a sample of code I'm working with. I don't work with VB6 that much and was wondering if someone could tell me what the .Height refers to:
[code]...
I understand the Screen.Height, but when .Height is subtracted from it, what does .Height represent. Is it also the Screen's Height?
I have a form which is a mdiParent, on this form I also have a left docking form which obviously reduces the size of the avaliable mdi area. Is there a way that I can get the width and height of the mdi area that is avaliable? I am programming in VB.Net.
View 2 RepliesI am working on a report in Excel and there's potential for quite large amounts of text easily over-running a merged sell of maximum row height size. I therefore want to be able to merge the right amount of rows to make the text fit cleanly.My idea was to try and find the height of a string when limiting it's width - essentially placing a piece of text into some kind of container, making that container fit to size (with a set width limit, in this case 640 pixels), and measuring the height of that container. With the height of the said container, I could then work out the amount of standard sized excel rows I want to merge.I tried to use a label but there's no way to set only the vertical element to be autosize.
View 3 RepliesIn html I just do <img src="x.jpg" width="1px" height="2px"> how about in vb.net. Is there an easy way to do this. When you are viewing the image through the picture box
View 1 Repliesi have a RichTextBox in my application and there may be many and many lines, i dont want to use any Scrollbar in RichTextBox. i want RTB to change its height and width itself according to the lines in RTB.
View 2 RepliesShow 'me.width x me.height'?
View 2 Repliesis it possible to change the width of the vertical scrollbar in a listview .When the scrollbar width is bigger, its easier to operate by hand on a touch screen.
View 1 RepliesI have the darndest problem. One of my forms resizes itself. In the development environment the size is 605/301. When the program runs it is much larger. In the form_load event I put the me.Width & me.Height commands and it still is much larger. I looked at the "hidden" windows forms code and can't see any resizing going on. I added a msgbox with the width & height. It says 605 & 301, yet the form is much larger.
View 18 Replies