My application (MDI if that matters) has what appears to be a very quick jump/shift/jerk (lots of descriptions of it) in the first minute that the application is running. I have tried double buffering all the forms...
View 3 RepliesI`m trying to figure out how to use a timer to do something for a couple of seconds. Let`s say i want to prompt a message for 5 sec and after to disappear it.Or On a button`s click to appear an image and after 3 sec to disappear it. How i`m i going to do it?
View 8 Repliesi've been searching for a way to delay a part of my program to let another part load, all i have found is threading sleep and one way which uses huge amounts of processing power. does anyone know a simple way to pause a part of script for a couple of seconds and then letting it run again? ( the problem is i need to get values from core temp, i also need to open it in the program. at the moment it say's "Object reference not set to an instance of an object." because it hasn't loaded by the time it is tried to be accessed. )
View 8 RepliesI'm just trying to figure VB out from a couple tutorials. I thought I was doing this right, but apparently not. Can anone tell me what it is?Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim g As Graphics = Me.CreateGraphics() g.DrawLine(Pens.Black, 0, 0, 50, 50) End Sub End Class
View 4 RepliesI am a sys admin for a company and our programmer left several months ago. a program they wrote is now failing and i am struggling to work out why. the program basically pulls data from a csv file into a readable form, written in visual basic. the application works on a couple of machines but not on a couple of others. i have matched up .Net framework versions, MS Primary Interop Assembly versions, still no joy. As the app works on some pc's i am wondering what other differences could cause this?
The error output is:
see the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
Exception Text
CODE:
JIT Debugging
To enable just-in-time (JIT) debugging, the .config file for this application or computer (machine.config) must have the jitDebugging value set in the system.windows.forms section. The application must also be compiled with debugging enabled.
For example:
CODE:
When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box.
I have noticed that a form's keydown method has a slight delay the first time you hold a button. How do I get rid of it?
View 3 RepliesI am trying to get a label to show briefly (3 seconds) when the form loads. The following code gives the 3 seconds, but the label doesn't show. The label is set to visible in the Designer properties.[code]
View 8 RepliesQuick question - if I have a timer set to 5000 (5 seconds) and the code in the timer takes longer than 5 seconds to run because of sql stuff, will the timer wait until the code is done till it fires again?
View 3 Replies1) Does this code make text the selected items text? If it doesnt then how would I do that?Dim text As String text = ListBox1.SelectedItem.ToString()
2)How would I make it so that if in combobox.items there is an item with the same text as the listbox selecteditem it is removed? This is what I have and it doesnt work.
If ComboBox3.Items.Item(text) Then
ComboBox3.Items.Remove(text)
End If
how do I move couple of folders all into another folder
View 3 Repliesim glad i found this forum i have a task set from my tutor and i have some of it working,what it is, is i need to make an object (in this case a text box) bounce off the walls of the form, it has 4 transitions as followsTransition 1 - moves up and to the right Transition 2 moves down and to the right Transition 3 moves down and to the left transition 4 moves up and to the left i have transition on1 and two working but i can not get 3 to work here is the code so far
[Code]...
I would like to make a program that will automate a couple things on a webpage. Here is the things I would like to automate:
[Code]...
I have a vary big picture with a map on it but the picture is 4110, 4110 X Y. Any way to jump to an x y coords on the picture its all in a panel control.
View 7 RepliesI found This code plays a file in winamp(tested) by a user-entered string/partial file name.but dont work
vb.net
'Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Auto Function FindWindow Lib "user32" (ByVal lpClassName As
[code].....
I am trying to make bounds for a character that can jump. I have made the character graphic into a rectangle and I have a square block in the game that the character must jump onto and I have set that as a rectangle.
How would I make it so when the character jumps onto the square block, he stays up there and then when he jumps down, and touches the ground, he stays on the ground. My current jump code is standardized; it does not detect changes in the Y-coordinate. What I have done in the jump for the character is I have made it so the Y-coordinate is increased by a certain amount and decreased by the same amount so the difference is equal to 0.
For example:
Character.LocationY += 8
Character.Location -= 8
Does anyone know the keyboard shortcut to jump from the start of a For / For Each (or If, While, etc.) block to the end of it in visual studio if you're using vb.net? I found the following which I thought would work but doesn't : Go to Matching Brace in Visual Studio?
Following the comment there I checked Tools/Options/Environment/Keyboard for the Edit.GotoBrace command which is mapped to Ctrl + å in Swedish.Vb.net doesn't use braces per se, but in the following example:
For Each Foo in Bar
Do lots of stuff
Next
I would have thought that the same command should jump me from the For Each to the "Next" but it doesn't do anything. Is there another command (or should that command work but something is broken locally?)
How can I make the icon of my program to be shown in the buttom of my screen on the right side, where icons of programs that are running are usually shown? And How can I make a "Bubble" jump from this icon with a messege?
View 3 RepliesI'm working on a project where I make a automatic messenger from VBnet. I want to program a simple one that responds to certain words or phrases. However, I only know the rough basics of If...Then commands. I have a lot of problems:
1. How do I make it so the messages typed in the box actually goes up into the script box when I press send?
2. How do I program a slight delay in the computer's answer?
3. How do I set a name to the computer and to me?
4. How do I make the script goes into scrolling when it runs out of space.
5. If possible, when I type an equation in the box, can I program the computer to solve it and display the answer? I'm a beginner so I don't really know the overall organization of this project. However, I would like it to remain as simple as possible.
Why does CPU usage jump so high when a WebBrowser control is navigating to a page?Is there a way to drop CPU usage?
View 17 RepliesI want to convert seconds such as 254565443 seconds to hours, minutes, and seconds and thought if I could remove the decimal and the numbers behind it and not change the number in front of the decimal then it would work.
dim seconds = 254565443
dim Hour
dim minute
[Code]....
This is my function to goto a specific time in a movie or music, ... check it out..
'GOTO TIME IN MOVIE, or SONG.
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
[Code]....
how can i make my cursor to jump to the next textbox after i type the digit
View 3 RepliesLike I imagine everyone, I often have problems navigating my code because the flow can jump from place to place. For example, if my code calls routine1, and I then want to go to routine1's code, I know that I can click in the dropdown menu and it will take me to that sub. But wouldn't it be easier if I could somehow right click on the call to routine way and select something like 'take me there' which would transport me from the function making the call to the code for the function being called? Then it would be easy to hop from place to place.
View 1 RepliesCurrently, I have 4 textboxes displaying hh , mm, ss and ms.I am required to convert only the Seconds, Minutes, and Hours and display it into another textbox (see attached doc for diagram).I've got a brief idea that for the hours, i'm required to multiply by 3600, and as for the minutes, multiply by 60. Am i correct? Please correct me if i'm wrong. But as for the actual coding of conversion and how to display it into another textbox, i'm not sure how to do so.
View 9 Repliesi have added a timer to my form but i have no idea at all on how to use it.[code]I need to add a timer or something betwwen the 2 sendkeys for 2 seconds..
View 3 RepliesI have a loop and I need that at the end of each step of the cycle that it sets in pause for a few secondsHow?
View 3 RepliesI have a loop and I need that at the end of each step of the cycle that it sets in pause for a few seconds How?
View 5 RepliesI have a value in a report that's in seconds that I want to display as hours:mins:seconds .. in Excel I can divide the field/86400 and format as hh:mm:ss but if I do the same in the report viewer it just shows "hh:mm:ss" presumably because the field is an integer and not a date.What's the easiest way to show a seconds value as hh:mins:ss ?
View 2 Replieshow to wait for a second inside a loop?
This is what I tried (including everything else in my form):
Public Class test5
Public z As Integer
Private Sub test5_GotFocus1(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.GotFocus
[Code]....
when i run code after 60 sec it display following error what is this error and how to eliminate ?ContextSwitchDeadlock was detected Message: The CLR has been unable to transition from COM context 0x2040a8 to COM context 0x204218 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
View 1 Replies