Calling A Random Function In A For Loop?
Apr 9, 2012I have a random function and a for loop which sets those random numbers to an integer
For i As Integer = 1 To 4
nums(i) = Randomfunc(0, 100)
Next
[code].....
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Setting A Variable To Accept The Result Of A Function By Calling The Function With Many Parameters
Feb 17, 2011I'm currently working with a client's VB.Net code, which was developed for them by a small development shop a few years ago and which they purchased and have been maintaining and uprgrading since. This client's primary developer is out on indefinite (likely permanent) medical leave and I'm now filling in until they bring in a full timer (as I'm a contractor here). My current task is to add some functionality to a the VB.Net code they purchased. I'm finding practices and techniques in the code that absolutely baffle me and can't make the code do what I want. I'm starting to wonder if it's me and was hoping to get some thoughts on the code I've encountered.
For example: Setting a variable to accept the result of a function by calling the function with many parameters, clearing the parameters in the function, setting them to some value, calling another function with those new values, then never using the values returned by the functions. I'll add a code snippet in the first comment since this is already getting long.
Threaded Function Call Slower Than Calling Function Directly?
Sep 14, 2010I have a function where I am performing a lot number of database operations inside a Sub. The operation when called directly like:ExecProcess()
takes about 11 seconds to run.However, if I create a Delegate, and call the sub using BeginInvoke(), the very same process takes over 40 seconds to execute.Here's the threaded code:
Protected del As ProcessDelegate
Protected Delegate Sub ProcessDelegate()
del = New ProcessDelegate(AddressOf SELocal.ExecJob)
Dim cb As New AsyncCallback(AddressOf Me.ExecJobComplete)
del.BeginInvoke(cb, del)
Anyone know what may cause a function to take longer inside a new thread, rather than calling directly?
VS 2010 - Calling A Function - BackOrdered Function Of Program
Mar 30, 2012I am having a problem with the BackOrdered Function of my program. I can`t get it to say anything but 0 when I run the program. Another problem I am having is the input box pops up like 6 times and it`s only suppose to once. [Code]
View 9 RepliesVS 2008 - Random Form Resizes After Calling?
Aug 4, 2009For some reason, a certain Form in my project will change it's size all on it's own right after I call it. It's usually with small forms in the one I'm having a problem with is 95x25 pixels. The only thing on it is a Label with some text in the middle and this code
Public Class MessageForm
Private Time As Integer = 25
Private Sub fadeTimer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles fadeTimer.Tick
Time -= 1
[Code] .....
As you can see the Form is meant to be a small pop-up that disappears on its own, like a balloon tip. Anyways I just added it to my project 5 minutes ago and as soon as I tested it out by displaying it with Form.Show(), it randomly changed to 123 by something else during runtime. I checked all the Form properties for any kind of resize properties and only found AutoScaleMode which was set on font, but set on None made no difference. Like I said I just added this form and have no code affecting it whatsoever in my entire project except for Form.Show and the code on that form. For the moment I'm just resizing the form on it's own Load event, and that seems to work, but I'd like to know what is causing this random form resize.
VS 2008 Difference Of Sleep Function And Pause Function (using Timer) Between A Loop
Aug 20, 2009Hi. what is the difference of sleep function and pause function (using timer) between a loop.
View 12 RepliesCalling A Serialport Handle From A Loop?
Apr 24, 2009I am trying to run the function:
Code:
Private Sub port_dataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles port.DataReceived
from inside a while loop of a different function ie.
Code:
While A_switch = 0
System.Threading.Thread.Sleep(100) ' Sleep for .1 second
calabrate_send = calabrate_send - 5
[code]....
the real problem is that the serial call updates the value of A_switch which is need to exit the loop at the correct time?
Calling Fortran DLL, Cannot Work In The Loop
Jan 15, 2010I am calling a Fortran dll from vb.net. It works when I call it it one time only. When I put that in a loop, it works for the first time and second time it quits the program. How can I run this in a loop?
View 4 RepliesFor Loop With Random Never Stops?
Mar 1, 2009I am using the following code to create a dummy file of a specific size. RemSpace declared as a Long value and is returned in bytes from a separate function in my applciation. I have verified that it returns the correct # in bytes. However, when I execute the following routine, the dummyfile is created, but it never stops the loop. I have to kill it from task manager or it would fill up the HDD. The line:
For i As Integer = 1 To RemSpace
should tell the For loop to stop when it reaches the value of RemSpace, which is a long value in bytes. Here is my complete code.
Public Sub Create_DummyFile()
Dim RandomClass As New Random()
Dim RandomNumber As Integer
[Code]....
Random Generator In Loop
Apr 19, 2011Create an application that allows the user to guess a random number generated by the computer.When the user makes an incorrect guess, the application should move an image either upr or down, depending on how the guess compares to the random number.If the random number is greater than the user's guess,the application should move the image up to indicate that the user needs to guess a higher number.If the random number is less than the user's guess,the application should move the image down to indicate that the user needs to guess a lower number.The game ends when the user guesses the random number.However, the application should allow the user to stop the game prematurely.When that happens the application should siplay the random number.I have tried every which way I can think of including using a textbox instead of an inputbox and playing around with the syntax - but just can't seem to get it right.[code]
View 1 RepliesAdding Random Movement In While Loop?
Apr 29, 2009I've made a program where a picture of a bee buzzes around the form in random movements (using random number generator code) and have put it in a while loop so that whilst the bee is visible on the form (hasn't flown off the sides) it moves randomly:
While (picBee.Top > 0 And picBee.Top < 725) And (picBee.Left > 0 And Timer1.Enabled = True)
Application.DoEvents()
For i = 1 To 3000000
Next
picBee.Top = picBee.Top - 2 + 4 * Rnd()
picBee.Left = picBee.Left - 2 + 4 * Rnd()
End While
So far the bee does stop moving when it meets one of the four edges of the form but I need to code it so when the be reaches the edges and stops a message box appears declaring the game over.
Loop Random AlphaNumeric String?
Feb 28, 2011I'm trying to fill a listbox with random alphaNumeric license plate numbers. I've succeeded in the random "plate" generator, but can't quite seem to figure out getting it to loop (500 times).[code]...
View 4 RepliesRandom Number Generated Between 0-10 - Cant Get To Loop
Feb 21, 2010I am using some arrays that are pre-filled and I am having a random number generated between 0-10. That random number will then go in to all 5 arrays and pull the item from that location. I think try to take the sentence that is generated into another string. Once that is complete I then go through the final array to pull all the sentences and concatenate them together.
Currently I've only been able to get 1 sentence to print out of 5...a fresh pair of eyes would prob see where I am going wrong...I've been at this for awhile and wouldn't mind some advice to where I am going wrong.
Public Class MainForm
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
[CODE]...
Random Number Generator And For Loop?
Oct 3, 2009I am doing a Coin Toss program for school and I'm getting my butt kicked by this thing. The following are the instructions exactly as my instructor gave them:Use the random number generator (see the code below) to simulate a coin toss. First ask the user for the number of repetitions. Next, set up a For loop to execute that many times. Each time you enter the loop, call the random number next method. Assume that a random value <= 5 is considered a "Heads"; a value >5 is a "Tails". That is, if the random value is <= 5, add one to an accumulator named intNumHeads. If the random value is >5 add one to an accumulator named intNumTails. When the loop finished, output the number of heads and the number of tails in a text field with appropriate labels.Dim intRandom As New Random()Dim intNumber As IntegerintNumber = intRandom.Next(0, 9) In my application I have the click event of the "Flip Coin" button coded as follows:
Public
Class frmToss
Private Sub btnFlip_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].....
Random Number Of 6 (1 ,6), And To Loop It 3 Times?
Feb 16, 2009I need a random number of 6 (1 ,6), and to loop it 3 times. I tried this but it gives me error for - if myRandom.next(1,6) Then:
Dim myRandom As Random()
For i As Integer = 1, 3
If myRandom.next(1, 6) Then
End If
Next
Also I need to know the code for putting a picture into a picture box.
Random Function Isn't Random?
Nov 25, 2009I got a loop like this:
For KeywordsLoop = 1 To 150
TextFile1.WriteLine(RandomSuffix())
Next
[code].....
Calling A C DLL Function?
Oct 3, 2011I have used the PInvoke Signature Toolkit to create VB.NET function definitions for three fairly simple C functions contained in an external DLL. The problem is that two of the parameters are structures so pointers need to be sent and one structure (fileview) is undefined.
OpenFileView(filename, &fileview_ptr)
ReadFileInfo(fileview_ptr, &fileinfo_ptr)
The structure of fileinfo is defined so I can create a structure definition in VB.NET and create an IntPtr to that structure with Marshall.AllocHGlobal. And then I can use Marshall.StructureToPtr to copy the data and do the inverse when the data is returned.
[Code]...
Calling A C Function From A DLL?
Dec 7, 2009I'm having some problems calling a C function from a DLL. The function is returning -101 which translates as a "bad parameter". The values I am passing have been returned from another, successful function call, so my current assumption is that I've built the structure incorrectly.The function definition is:
int sm_switch_channel_input(struct sm_switch_channel_parms *switchp)
Parameters
*switchp (a structure of the following type):
typedef struct sm_switch_channel_parms {
[code].....
Calling A Function In A DLL?
Mar 18, 2009in a DLL that takes a pointer to a structure as a parameter.The C and VB code is as follows.Am I passing the structure in calling the DLL correctly? I am asking because the API call returns a valid error code indicating error opening the com port specified. I tried all valid ports (com1 on a Vista 32 machine with a USB-Serial device and com1 defined in device mgr, com1 and com2 on a desktop with winxp and 2 real serial ports).I dont have the code for the DLL and cannot debug into the DLL code.
C code
typedef struct _SETUPPR {
CHAR Port[5];
[code].....
Calling A Function Like A Sub?
Mar 15, 2011I'm sure this is a pretty simple question but I can't seem to find the answer on Google. Say I've got a function that does some stuff and returns a string. I can assign its return value to a variable:
Dim result As String = MyFunction()
But sometimes I want to perform the actions within the function but I don't care about the return value. I know I can simply call the function from code.
Sub Main()
' Code
MyFunction()
' More Code
End Sub
This works and does exactly what I need it to. My question is - are there any issues or pitfalls in doing this? Particularly I want to make sure I'm not introducing any performance or memory leak issues.
Calling A Function?
Apr 9, 2010The function is something like this: "function recieveFindPlayerResponse(displayString)"Now, how can I call it. I was trying this:Call AxShockwaveFlash1.CallFunction("_root.recieveFindPlayerResponse(displayString)")And before I had this, I had a Call function which defines displayString. (Works, as I've tested it before, and no error is given to this.)Now, how can I call a function like the above?
And example of what the code looks like from ******* swf decompiler is:
function recieveFindPlayerResponse(displayString)
{
[code].....
Calling A Vb Function From Its Name
Mar 17, 2010in VVB.net I have a string that contains the name of a function, say dim funcstr as string = "MyFunc1". How do I call the function or sub whose name is contained in the string funcstr (in this case, MyFunc1)?
View 9 RepliesCalling Outside Function?
Feb 28, 2012going to need to call unction within a FoxPro program. I believe within my VB program I will need to create a service which will need to cal
View 7 RepliesAsp.net - Calling A Function From Server?
May 8, 2012I have an aspx page populated with data from an access database using this code:
<asp:datalist id="bookData" runat="server" RepeatDirection="Horizontal" RepeatColumns="3">
<ItemTemplate>
[Code]....
I would like each entry of data to have a button associated with it that could call a server function to submit data to a database. I currently have the button implemented, but no idea how to go about calling a function that would be able to detect what button was clicked.
C# - Calling ASP Function From Javascript
Jun 14, 2012i have this question i was trying to find a way to call a javascript function from asp controllers and i did here is the code :
<script type="text/javascript">
function hello() {
alert("hello world")
[Code]....
and i want to call it from a javascript function so it will be like controller----call---> javascript ---call--->code behind
Calling A Function From A Delphi DLL In .NET?
Sep 27, 2011I've designed a Windows Service in Visual Basic 2005 that needs to call some functions from a DLL written in Delphi 5. If I try to add this DLL as a reference, I get this error:
"A reference to 'C:ProjectsServiceProMDPUpdateServiceMessageStubApplicationSPHost.dll' could not be added. Please make sure that the file is accessible, and that it is a valid assembly or COM component."
I assume that it is just not possible to add this DLL as a reference to my VB2005 project, since the DLL was written in an old version of Delphi, correct? This isn't a big deal, as I can just use the DllImport function from System.Runtime.InteropServices, but if it is possible, adding it as a reference would be preferred.
My other question is, how would you be able to call a function from the DLL using DllImport, if the function you are trying to call takes a Delphi record data type as a parameter (if this is possible)? If possible, would I need to pass each field in the record separately or would I be able to define a structure in my VB app that mirrors the record definition in the Delphi DLL and pass that? Or, would it be best if I just created another function in the Delphi DLL that took various string/integer/boolean/etc. parameters that I could call from VB that would then call the original function in Delphi? I tried searching the internet for this specific question, but I couldn't find anything that looked useful.
[Code]...
Calling A Function From A String
Jun 2, 2010I have an XML file with a list of tasks to be executed. One of the elements of the XML file is funcName (function name), which is the name of a function to be executed in my Visual Basic.NET application (v4).I can retrieve the string name of the function, but how do I go about running it? I have two Class files, GUI and DISP.[code]
View 2 RepliesCalling A Function From Another Form?
Sep 2, 2011Is it advisable to call a function from another form?Does it have any side effects on the system while running, like more process will consume?I have a function that will set the background in a form, it will make the image stretch, backcolor transparent and will set the picture. If I will use that function in other 15 FORMS I can minimize my code.
View 9 RepliesCalling A Function From Another Module?
Sep 24, 2010I have an 100 aspx files with one module file for code. All these aspx files have the same backend function, so i created on public module for all these files to access. These files are in the same folder. But for some reason the aspx files cannot access the function from that module.
mod1.vb Code (.vb file)
Public Module Allinone
Sub Allinone_Load(ByRef Page As Web.UI.Page)
[Code]....
I am at a roadblock of why the aspx files wont read this module? Also all these files are in the same directory
Calling A Function On A Different Thread?
Nov 6, 2009I have a couple of threads running. One is a trigger which picks up a system event, the other processes stuff. When the trigger picks up the event I want it to notify the processor thread to do stuff. The threads are both started within the same class and can access the thread-object of the other thread. How do I set up the function call though?
View 10 Replies