I've written a short function for array intersection and wanted to know why one function is faster than the other.
1)Dim list2() As String 'Assume it has values'Dim list2length As Integer = list2.length
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Someone once told me VB.net had some built-in function to check if two rectangles intersected. But I cannot find it.
View 1 RepliesI just did a little test, comparing speed between a function and the same thing but using a byref value instead.
Public Sub New()
Dim timespanFunction As TimeSpan
Dim timespanByRef As TimeSpan[code]....
So using byref is more then a second quicker in this case. So why does function actually exist? Is it just to make programming more easy and your code look nicer? The most important things of a application are Usability and Speed right? So why trade speed for nicer looking code?
How do i exactly check internet connection speed.I have searched around google and found out a method w/c will Download a file like 1mb size, then it will calculate the speed.
View 1 Replieshow do i check the bandwidth (download speed and possible upload speed) of a user in vb.net or php that uses my app or visits my site resp?
View 1 RepliesI have a codes that calculates DownLoad speed and UpLoad speed kb/s. I would like to implement this kind. I also want to put such kind of graph. Any article or links where can I start building my own like that.
View 2 Replies(VB 2008) ok im making space invaders for a midterm project, that is i made space invaders and then lost my thumb drive, WITHOUT BACKING UP ANY OF MY PROJECTS. point is its due tomorrow and im having trouble with one of my methods. i have a collection that stores all the missles the enemy shoots, then i have a collection that stores each picture box that makes up the barriers. my method is supposed to search thro both collections and check to see if they intersect. if they are both visible they become invisible creating an illusion that they dissappear. i hav organized the rest of my code to ignore the missles and barriers if they are invisible but this part isnt working for some reason.
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This is my problem...I have created graphicspaths (gp) in Visual Basic...but every gp has a name. So I want to print every name next to the gp. I use GetBounds to get the nearest rectangle around the gp. But like for a circle the name will be quite far away from the gp. Now I want to draw a line from the name to the outline of the gp...can somebody help me with this little part of script?
View 11 Repliesi want to monitor the speed at which my system is currently Downloading and uploading. I dont have any idea how will it can be done.
View 6 RepliesI have made considerable progress on a game I am making, but one of the fundamentals of it relies on collision detection. At the moment, I am using Rectangle.IntersectsWith() to check "collision" between two PictureBoxes, but I don't want everything all square (graphics, etc). So I set about adjusting regions and have ended up with a circular button (from the MSDN example). What I'd like to know is this: Is there any way I can check intersection between any two OBJECTS, not just rectangles? As in, if the rectangle intersects with or is inside the circle in any way then how do I check it programmatically?
View 3 RepliesI have a list of user names (we'll call 'original list') one object is returning. I have a list of user names (we'll call 'filtration list') another object is returning. I am testing a method that returns all of the items from the original list not in the filtration list. Ideally what I want is something like:
Assert.That(returnedList, Has.No.Members.In(filtrationList))
So far the only thing I can do is iterate over the filtrationList and do
Assert.That(returnedList, Has.None.EqualTo(filteredUser))
Question: I need to draw pictures as below in C#/VB.NET Draw ishihara-transformations (circles in circle without intersection)?
Note that my problem is NOT drawing circles in C#.
My problems is drawing them without much whitespace and without intersection.
My thought would be using "Orbits" and then draw the circles with center on the "orbit" lines. (with some orbit lines for bigger and some only for smaller circles)
I am suing VB 2008 express edition.
I am trying to solve this problem since many days. The problem seems to be rather mathematical, but I faced difficulties dealing with Grids and how to store them using visual basic.
[URL]
In my problem, I have a world of 200 x 200 units divided into 4 x 4 grids (Each of 50 units).
There is a line crosses some areas has the coordinates of Point A (Starting Point) of (XA = 12.43, BA = 159.48) and Point B coordinates (Ending Point) of (XB = 112.95, YB = 20.95).
The question is, how can find the length of (A to C1), (C1 to C2), (C2 to C3), (C3 to C4), (C4 to C5) and finally (C5 to B)?
In addition, how can I indicate the square in which the line is inside?
note that the method should work for all conditions (-ve and +ve line slopes) and for different A and coordinates.
I am creating a dll with all the functions and subroutines that I use all the time and I decided to create a function that I can pass different types of array to so the function obviously (or not) would have an array of type object. Now I no you can pass any type into an object type but when I pass an integer array into an object array I get an error.
value of type '1-dimensional array of integer' cannot be converted to '1-dimensional array of object' because 'integer' is not a reference type.
Shared Function CompareArray(ByVal FirstArray() As Object, ByVal SecondArray() As Object, Optional ByRef ErrorMessage As String = "") As Boolean
Dim IntArrayOne() As Integer = {1,2,3,4,5} Dim IntArrayTwo() As Integer = {1,2,3,5,6} Dim IsSame As Boolean = False IsSame = CompareArray(IntArrayOne(), IntArrayTwo())
I previously posted a Question about code that uses a function to return the frequency of characters in an array. I have now got this code.
View 5 Repliesi want to check for the lan speed and put this speed value in a progress bar.
for example:
[==== ] the lan speed now is 23 KB/s
and there is another problem is if there are a LAN and a WiFi adapter in the same time how do i check for the speed for both adapters
how would i go about getting the of a fan of a computer that my program is running on in rps(revolutions per second) using vb.net?
View 4 RepliesI want to filter a list of entities that I am fetching from a database. In fact, I should be getting only 1 entity back and I want to make sure its category is one of the allowed ones. What's the best way to filter? My first thought was to do something along the line of :
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Of course, it doesn't work and I'm having issue finding documentation on that "Where".
I'm trying to call an array from another function into an argument command for a command prompt, but I have no clue on how to do so.This code is the code where I am calling the command prompt and adding arguments
Private Sub ConvertButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ConvertButton.Click
Using m_Process As New Process()
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I would simply like to know if it is possible to call a function using a string value.
As an example i have many functions called "openford","openvauxhall","openmini" etc.
So what I mean is, can I put all those function names into an array, then pull a name from the list and call it.
Before adding rows to a table I am evaluating the SSN number. These will later be flagged for correction so I am setting a datatable column to true or false if it passed muster or not.
I wrote a function to check the number and make the determination plus pad it with zeros and hyphens where they should be. My problem is I want to return the results in an array. I am getting system.string[] as the return value.[code]...
I'm trying to write a function that returns an Array that I can pass into a String.Format[code]...
View 3 RepliesI need to get the bytes from an array of bytes starting at a certain index and for a certain length (4), how can get this? Note: I don't want to use the Array.copy sub as it is not a function.I need to put it in something like Sub MySub([arguement as byte()]the_function_I_Need(Array, index, length))
View 2 RepliesI want to pass the entire array to the next function[code]...
View 3 Repliesi need to pass array value to a function , here are the details
function MyTest(byval a as integer, byval b() as string)
if b is nothing
msgbox("no array")
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I want to return an array from a function.dt is a DataTable that is global
HTML
Dim dr As DataRow
For x As Integer = 0 To adoc.GetUpperBound(0)
dr = ds.Tables(0).NewRow()
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I'm definitely missing something here. I am trying to return an array forn the sql statement, chich I can reference as abom() in the original source.The ultuimate goal is to manually populate dt.
I need to return an array but the array size will change from one call of the function to another so I need away to storing the returned array. The function is as below, and as you can see the returned array will be of different sizes:
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Im overiding getRolesForUser() I have 2 columns i return from the query IAdapter.GetRolesByUserName(userName) returns two columns (roleID, formID) How can I return them and access the two columns data? 2 dimensional array?
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Is it possible to use a recursive function on an array
If I have an array like this[code]...
I want to use a recursive function to make in out like this[code]...
I'm trying to write a function that returns an Array that I can pass into a String.Format:
Public Function ToArray() As Array
Dim vals As New ArrayList()
vals.Add(Me("district"))
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