Change The Background Randomly From A Selected List After A Certain Amount Of Time?
Jan 16, 2009
I am trying to change the background randomly from a selected list after a certain amount of time. I have the array set-up and I have it picking a random path (ex c:images est.jpg). I found in the registry the background image settings. I tried setting the registry key to the path but it seems like there is more to it than that because it doesn't change it. I also saw where it stored the file and tried changing it but again it doesn't change it. The funny thing is if I go to display properties afterwards it shows the correct image just doesnt set it. If I then click a different image and go back to it then it sets it. How can I make it update the background?
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Mar 3, 2010
Alright inside of a combo box I have a list of colors and I want to change the background color of the combo box to the selected color...basically this... but im not sure what the problem is here anyone have some advice or is this not possible?
CBLinerColor.BackColor() = CBLinerColor.Items.Item(0)
Basically i want dynamic code that will change the color depending on the items in the box.
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Nov 7, 2010
How can I change the listview control selected item background color?
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Jul 28, 2010
any body give some example for overriding drawbackground method so that I can change the list box item background color in drawitem event (calling e.drawbackground)
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Feb 24, 2009
Is it possible to change the text format of a ListBox selected item at run time?
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Jul 26, 2009
I'm trying to change the background color of a node that is being hovered over while the user is dragging items from a list box.I've gotten both functions to work separately, but while the user is dragging, the NodeMouseHover event does not fire. Is there a way to do both?
vb Private Sub trvNavigation_DragEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles trvNavigation.DragEnter
If Me.CanMove(e) Then
e.Effect = DragDropEffects.Copy
[Code]...
Note: CanMove() is a function I made that verifies the dragged data. Nothing else. And I will change "Color.Blue" to a system color later.
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Sep 27, 2010
I have a change calculator program that has two user inputs and 6 outputs. The user inputs how much money is owed, then how much money is received. IT will then display how much change you need to give back. It should also display the different types of currency that are available to give as change. Here is my code so far.
[Code]...
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Sep 30, 2009
this what i have so far
dim totalprice as string=""
if klant.lblprice.text >0 then
totalprice =klant.lblprice.text.count
totalbesteding.lblprice.text=totalprice
end if
does anybody has an idea how i can calculate the amount of an object so that i can get a total amount
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Jul 12, 2011
I want to pick some uniq numbers from a list of numbers randomly list of numbers:
dim firstlist() = [1,2,3,6,7,9,12,16]
I want to pick some uniq numbers randomly from this list [2,6,16]
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Jul 1, 2010
I have a program that allows a user to select a program to run at a certain time for a specific amount of time all choosen by the user. Everything works with the exception of if my program has launched the other program, my program become non-responsive. Meaning I am not able to look at that window again. Not that one really needs too, because when time is up my program closes the program it opened, then closes itself. I just want to be able to see my program when the other program is running. how to do this and perhaps drop me some links, that would be wonderful. This is what I have coded, but like I stated there are no code errors.
[Code]...
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Jan 15, 2010
How long it would take to generate all of the numbers between 1 and X randomly.
X=1,000,000 took 6 seconds, and for 10,000,000 took over a minute.
Does that sound reasonable?
Experiment
stopwatch start
count = 0
do while count < x
select a random number between 1 and X inclusive
have i selected this number before?
no-add 1 to count
yes -
loop
stopwatch stop
display elapsed time
I made the Do Loop UI un-friendly and ran this from the IDE using CTRL-F5. My PC is 1.8Ghz and has 2GB of memory. I am using VB 2008, .Net 3.5 SP1.
Looking for work - Zip 65101 [URL]
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Mar 16, 2011
Below is a form which produces a graph, the idea is to produce 6 random numbers from a range (0,6) place the numbers in an array then use these numbers to produce columns on the graph, however at the moment it is using the numbers more than once, how can I get it to just use the values once only in the array.
Private Sub btnGraph_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGraph.Click
txtAns.Text = ""
g.Clear(Me.BackColor)
g.DrawLine(Pens.Black, 50, 70, 50, 420)
[Code] .....
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Jun 11, 2012
i have this formula to get the time used and amount conversion. My problem is that when I a hour dt_total_used.Hour.ToString()) * 60 give wrong result.
'GET TOTAL USED TIME
dt_total_used = dt_end.Subtract(dt_start).ToString
'COMPUTE AMOUNT OF TIME USED
[Code].....
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Sep 7, 2009
i need to reduce an amount of time by x% this is what i have so far [code] as u can see ive taken the hours minutes seconds from the time and stored each in a seperate variable so from 02:30:00 i then divided the hours by 60 and then 60 again to give me the total seconds in the hours and then divided the minutes by 60. i then added all 3 to give the total amount of seconds so now the buildtimetotal variable now holds the total in seconds i now need to reducce this by x% all vars are dimentioned as integers except for buildtimehoursback which is a double the problem seems to be when i try to convert the total seconds back to hours minutes seconds.
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Aug 18, 2010
In my program's Form_Load I randomly generate a time value. Once I generate the time value, I put it in a DateTime variable. I need it to work like a clock. I know I can do this with a timer with an interval of 60000, or using TimeGetTime and updating a variable.Is it possible to do this with a thread?
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Jan 16, 2010
Ok lets say i have 5 picturebox`s and 5 images, how can i randomly display the images in different pictureboxes each time i click a button ?
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May 18, 2010
I'm relearning VB.net just for fun, so consider me new at this. I'm trying to write a program where the user can input a list of names or numbers, and the program will randomly pick one of those names or numbers. So far, I can get it to randomly generate numbers based on what I put in the code, but I don't know what I should use for the user to input the data, and how to code it so that the program will pick from that data.
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Jun 11, 2010
I am struggling to show different views of gridview with database values. Here is my requirement. Database Table:I need to show one drop downlist with three values 1,2,3. If user selects 3 i Need to show a grid like belowAge,AnnualSales and Assortment are names which are coming dynamically from database.
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Aug 6, 2009
i would like to have program a timer that will count the seconds during which there is mouse movement or any keyboard movement.
the point of this application is to record the amount of time an employee has been using the computer (does not matter what purpose or application it has been in use for)
i would like to do this in vb.net for winforms
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Feb 4, 2012
Dim d As Integer
For d = 0 To TextBox2.Text
WebBrowser1.Navigate(TextBox1.Text)
//a code that pauses the loop but does not stop the browser thread
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Sep 25, 2010
I could only find this answer for c++ and C# so how do I make a timer pause for the amount of time , for example 4 seconds.
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Jun 22, 2010
I recently created a mail form for my program users to use if they have questions, etc.. Sadly, the mail form is easy to abuse. People can just put "A" as the e-mail and password and go right ahead and send an e-mail to me. This is why I want to add a delay so that users can only open the e-mail form once a day so that I can get a lesser amount of troll-mail. Is there a way I can make it so when a user clicks on the button to call the Mail form, it will make the button unclickable for X amount of time?
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Mar 9, 2011
How I can use a messagebox to show for a specific amount of time only? So if I place this in maintimer, MessageBox will show and will auto close and I set how long it must display for. If messagebox is up, then Timer is paused. I did research around these lines but couldn't find what I'm looking for.
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May 28, 2010
I have completed a 145 page automated PowerPoint presentation application. The presentation is completed successfully. In the presentation, there are sets of charts that are repeated for difference Item Manager sections.
I created the template with the desired font for the graph datasheet, legend, etc. Most of the sections use the same font that is in the template. However, a few sections randomly change the font on the chart, making the words and numbers overlap eachother. I have attached two images showing this difference.
Have any of you encountered this type of problem? Do you have a solution for it? Also, if you do not have a solution directly with this problem - do you know how to change the font programmatically so that I can make sure the font is successfully chosen?
One thing to note - if I open up the presentation and open the graph to edit it, when I close the graph it successfully reverts to the font that is used with the rest of the presentation.
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May 5, 2009
How to make a programe that turns off the computer after a set amount of time.
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Mar 7, 2009
How to list all font in combobox, and how to change selected font in list accordin font in combobox?
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Mar 25, 2012
Beginning VB 2010, had a project that requires us to create a list box of 25 randomly generated 0s or 1s. Problem is when I put the loop in, it only repeats the same random number, not different one each loop. What am I doing wrong?This is the code I have so far...Code in Question:
'Declare new random object
Dim RandomGenerator As New Random
intRandomNumber = RandomGenerator.Next(0, 2)[code]......
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Nov 23, 2010
I need to count a large amount numbers in short time.As a result the CPU jumps to 40-60% on 4-core PC.Which is extremely high.I have any idea that will lock up the thread for some time, but not actually slow or reduce the amount of files that are allowed to be counted per a giving time period.
Vb.net
Application.DoEvents()
Threading.Thread.Sleep(1000)
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Feb 4, 2012
I'm using Visual Studio 2010 / VB / dot net 4.0, and I have a drop-down menu in my left column that switches resource languages for the end user. It reads like this:
--------English ------- <<- Engish is always the default top language option
French |
Spanish |
[code].....
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Aug 3, 2009
Is there a limit to the maximum amount a List(Of T) can hold? I need to know because I have a program that could potentially wind up in a really large loop that would add over 200 or so items to a list at one time.
MSDN search didn't really tell me much, but I'm in a rush at the moment, and was just wondering.
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