How To Find Closest Number To Given Location

Nov 29, 2008

I am creating an application and I have the numbers 1 - 20. Each number represents a location. They are continuous. I need a way to find the closest number to a given location. For example if the event is in location 8 and there are 2 people who can attend who are in locations 6 and 10. Then zone 6 would be chosen as its closest and also the lowest. If I needed the next highest closest number then I could pull all of the numbers into an array and sort them and then pull out the one which is the next highest zone. However as I need to find the closest number which could be lower, im not sure how to achieve this.


Comparing DateTime's - Find The Closest To System Time?

Jun 21, 2010

I am looping through a list of DateTime variables and have got the .ToUniversalTime variable. I want to find out from the list which is the closest one approaching Now.ToUniversalTime but am having difficulty trying to work it out I had it looping through like this but this isn't much good as I only want to return the one that is the closest approaching to the system time. If TodaysCard(i).eventDate.ToUniversalTime < Now.ToUniversalTime

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Find The Closest Valid Date To One Given As An Invalid Date String?

Aug 18, 2010

So there's this accounting package at my client that spits out text-based reports with invalid dates, like February 31st or September 31st.The reports are formatted with spaces and mono-spaced fonts. The data that gets parsed out are fed into a more formal local SSRS report, and that's about all you need to know.

What I am interested in fixing is the situation where a date is invalid and can't be converted into a DateTime struct. The date format from the report is "MMM-dd-yy" (e.g. "Feb-30-10"). The date strings need to be fixed before being shown in the formal report. I've seen this done two ways in my time as a developer, and I want to come up with a cleverer way of doing it (if there isn't a built-in way I don't know about).The first bad method (I can't believe I'm even showing you!):

Dim month As Integer = <Parse out the month from the bad date string>
Dim day As Integer = <Parse out the day from the bad date string>
Dim year As Integer = <Parse out the year from the bad date string>
Dim validDate As DateTime


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Jun 2, 2010

First off, apologies, I am probably diving in a bit too deep with this one. I am trying to find the current version of the drivers in my machine. I have a list of the GUIDs and friendly names by using the following code:


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Mar 26, 2011

I want to create a button that opens a supplied word document in their standard word handler like office or openoffice. But how do you find the Location of the exe (Or its folder) and using it to open the Word Document.[code]...

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Jan 24, 2011

When a MouseDown event occurs on a System.Windows.Forms.DataGridView I'm performing some action. But now I only want to perform said action if the MouseDown event occurs on any part of the Grid EXCEPT for the Headers (row or column).

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Find Location Of DGV Cell Based On Value?

Jun 7, 2010

I have a DGV that is getting created on loadup, getting the results from a SP. So in this case, I have a DGV that is not bound to anything.  It only get bound to a datasource at runtime.I have specific values that I'm looking for. See code

If e.Value.ToString = "HU-3" Then
e.CellStyle.BackColor = Color.Chartreuse
e.CellStyle.ForeColor = Color.White

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Jan 19, 2010

i need to find the location of element by index

example i enter 5 numbers

1 2 3 4 5

search a number, i search 3 it should display the lindex location? for me to understand more about vb,,more on arrays..

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Jun 26, 2010

How can I find the location of my application's executable in WPF (C# or VB.Net)?

I've used this code with windows forms:


But with WPF I received this error from Visual Studio:

System.Window.Application does not contain a definition for ExecutablePath.

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How To Find Location Of DGV Cell Based On Value

Jun 14, 2011

I have a DGV that is getting created on loadup, getting the results from a SP. So in this case, I have a DGV that is not bound to anything.  It only get bound to a datasource at runtime.I have specific values that I'm looking for.[code]

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Feb 18, 2011

How to find start location of program VB.NET???

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C# - Find The Position Or Location Of String In Given Document?

Feb 26, 2010

How to find the position or location of string in given document.I have one word document and i want to store all its words and word positions in database so thats why i need to find the position of the words.

how can i find position or location of word or string in given document.

i intend to use or c# for and .doc documents

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Jul 4, 2009

I am trying to write a simple Visual Basic 2008 installer that copies word macro templates to Word's startup directory. On Vista and 7, that directory is the user's AppDataRoamingMicrosoftWordSTARTUP directory. Is there a way that I can programmatically find this directory? I.e. is it safe to say that this directory will almost always be in this location such that I can simply get the user's home directory and then add AppDataetc.... or is there a registry or something else that I can access to get Word's current standard startup directory?

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VS 2010 : Find The Location Of A Piece Of Text In A Datagridview?

Mar 18, 2012

I have a datagrid view with 3 columns and variable rows. I have many rows so it is tough to know what is where so, the first row consists of names.I have a textbox in which I type in a name and hit a button. Doing this, I want the location of the that cell in terms of and

Extended : for the adjacent ones just add +1, +2 etc to the column number right ?

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Jan 15, 2011

How can I efficiently find the location of the first instance of a four byte sequence within a byte array? Is there something more efficient than looping through the whole array, or a built-in method?

I'm searching through a byte array for a pair of CrLF. I can't convert it to string for an InStr first because I need the position of it in the original byte array.

I am trying to figure out the location of this, as it delimits between a string portion and a binary portion, similar (well, exactly like for this part of it) to an HTTP header. There is a string portion, and two CrLf before the content begins.

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VS 2005 Check For String, Find Lenght And Location Then Copy?

Mar 25, 2010

So I have a string that I need to search through for certain strings. If they exist, then copy that string to a text box. There has to be an easier way to do this then what I have below


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Jan 31, 2011

What is the best and fastest way to find the exact location(Drive/Folder) of a specific file, without scanning the whole drive. Right now, I am using those two instructions to locate EXCEL.EXE so I can properly call it with a shell command.[code]It is quite a long process, and I have to deal with some access denied folder like System Volume Information. I am quite new to VB programming.

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Apr 10, 2012

location of character in mixing  laguage (e.g.  farsi & english) sentence are different in memory and display , you can check it with point() all  Instructions as LEFT ,RIGHT ,MID not work  correctly when using it on the mix language sentence also GetPositionFromCharIndex(I) also not get position of the char user see on display...i need to have exact location point() of display character (from left or right side of text box)

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Jan 8, 2010

I am making a game in VB.NET and I need to know how to get the closest PictureBox to my Player(Which is also a picturebox) I have tried a couple of time but it seems to get exceptions or get itself rather then the closest.

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Apr 29, 2010

I need to calculate the location of intersections between multiple date ranges, and the number of overlapping intersections. Then I need to show which date/time ranges overlap each of those intersecting sections. It is slightly more complicated than that so I'll do my best to explain by providing an example. I am working in VB.Net, but C# examples are acceptable as well as I work in both.

We have several high risk tasks that involve the same system. Below I have three example jobs named HR1/2/3/4 with start and end date/times.

HR1 {1/6/2010 10:00 - 1/6/2010 15:00}
HR2 {1/6/2010 11:00 - 1/6/2010 18:00}
HR3 {1/6/2010 12:00 - 1/6/2010 14:00}


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Array Searching - Finding Closest Value?

Dec 10, 2008

Say I have an array of doubles sorted from smallest to largest. What is the FASTEST way to find the closest value in the array that is LARGER/SMALLER than the search value if an identical value is not found.

dim myArray() as double = {1.245, 2.45, 3, 4.556, 5.4434}
'LARGER AND SMALLER SEARCH for 3 should obviously return 3 because its in the array.
'LARGER SEARCH for 2.46 should return 3 because it is the closest LARGER value
'SMALLER SEARCH for 2.46 should return 2.45 because it is the closest SMALLER value

I certainly can do this on my own, but I am looking for the fastest way.

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C# - Get Closest/next Match In .NET Hashtable (or Other Structure)?

May 7, 2012

I have a scenario at work where we have several different tables of data in a format similar to the following:

Table Name: HingeArms
Hght Part #1 Part #2
33 S-HG-088-00 S-HG-089-00
41 S-HG-084-00 S-HG-085-00


Where the first column (and possibly more) contains numeric data sorted ascending and represents a range to determine the proper record of data to get (e.g. height <= 33 then Part 1 = S-HG-088-00, height <= 41 then Part 1 = S-HG-084-00, etc.)

I need to lookup and select the nearest match given a specified value. For example, given a height = 34.25, I need to get second record in the set above:

41 S-HG-084-00 S-HG-085-00

These tables are currently stored in a VB.NET Hashtable "cache" of data loaded from a CSV file, where the key for the Hashtable is a composite of the table name and one or more columns from the table that represent the "key" for the record. For example, for the above table, the Hashtable Add for the first record would be:


This seems less than optimal and I have some flexibility to change the structure if necessary (the cache contains data from other tables where direct lookup is possible... these "range" tables just got dumped in because it was "easy"). I was looking for a "Next" method on a Hashtable/Dictionary to give me the closest matching record in the range, but that's obviously not available on the stock classes in VB.NET. what I'm looking for with a Hashtable or in a different structure? It needs to be performant as the lookup will get called often in different sections of code.

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Calculate Closest X , Y Position From List?

Mar 4, 2010

I have a list box full of X, Y positions in the format of "xxx, yyy". I need to compare my current position to the positions in the list box and find the one that is closest.

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Get Closest Tile To Player On Screen?

Mar 17, 2012

I've managed to implement a formula that helps me to get the closest tile's distance that meets my requirements. The only thing is, I can't retrieve the actual tile for some reason... Tiles are named "Items" also. Here is my code:


It puts green squiggly lines under ClosestItem and gives me the error: "Warning    2    Variable 'ClosestItem' is used before it has been assigned a value. A null reference exception could result at runtime."

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Javascript - Getting The Closest String Match

May 2, 2011

I need a way to compare multiple strings to a test string and return the string that closely resembles it:


(If I did this correctly) The closest string to the "TEST STRING" should be "CHOICE C". What is the easiest way to do this?

I plan on implementing this into multiple languages including, Lua, and JavaScript. At this point, pseudo code is acceptable.

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[Abandoned] Finding Closest Points?

Jan 17, 2010

Imagine a grid of 16x16. All points are integers, there will be no partial points.I have a list of points that fall somewhere on that grid. Since each point is has an integer x,y coordinate, there can be a maximum of 256 points, but normally there will be considerably less than that.What I am trying to do is take a new point N and find the closest point to it in my list of points. The brute force approach is to use the Pythagorean theorem to find the absolute distance from each point on the list to N, and the minimum of all those distances would give me the closest point. However, since there could easily be 100 points, or so, and there is a real advantage to speed in this case, I am looking for a faster way to do this.

The first thing I thought of would be to divide the grid into four quadrants of 8x8. I could then quickly determine which quadrant N was in, and I was able to pre-compute which quadrant each of the points on the list was in. Therefore, I could easily narrow the search down to the points in the same quadrant as N, but that is invalid. If N lies near the boundary of a quadrant, the closest point might not actually be in the same quadrant as N.So what I am looking for is a way to search a list of X,Y points to quickly find the point closest to some other point N. The fact that the search area is 16x16 might help. A certain amount of pre-computation can be done on the points in the list if it helps, but N can fall anywhere in the grid.

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Jul 23, 2010

i have an array consist of ({9,2,10,5,7}) and i have a total = "17".

the question is, how do i find which sum of array that match the total ??

do you people know the algorithm or in language ??

the number in array not always the same and so the total is. that is just an example.

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Jul 6, 2011

search a dataset table and search a column within that table for a value than if the value is true in the column find out which row number it was on

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Jun 22, 2010

Suppose I have a number[code]...

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Sep 6, 2011

For example, black is 0, how can I find out what number other colors are?

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Mar 9, 2009

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Jan 6, 2011

If I have four items in the listbox, e.g. a, b, c, d, how can I find the name by knowing from the top the item is number 3 (c)?

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Aug 25, 2009

How do I check to see if the first character of a string is a number in VB.NET? I know that the Java way of doing it is:

char c = string.charAt(0);
isDigit = (c >= '0' && c <= '9');

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Jan 25, 2012

I have a Credit Card Number in an XML Message and I want to use a regex to find the Credit Card Number and encrypt it. All numbers are 16 characters long and they are not always in the same place in the xml, so basically I think I just need to find a string that is 16 characters and decrypt it, but I am not sure how.


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Jan 12, 2011

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Feb 17, 2010

I have ten numbers like 1.1,2.5,3.7,4.9,5.4,6.2,7.6,8.9,9.0,3.56

How I can find the largest number in the group?? I can do comparison of two number and repeat the process but it is very long, is there any other ways??

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Feb 8, 2011

How to find the number for sentences in a String data ? Edit: Ok I came up with this after following Wipqozn's method

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Apr 15, 2011

i am trying to find the sin (any number *Pi) but for some reason its not working. the result i am getting is the answer of (sin(any number)) * pi here is an example of my

Answer.Text = Sin(variable1 * Math.PI)

****note variable1 is user input

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Mar 4, 2012

How can i find the week number in a month.

A month can have 5 weeks, i need to know in which week i am.

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I am trying to determine how to take a date and show what the week number is for that month. So 3/1/10 will be week 1, 3/16/10 will be week 3 and 3/30/10 will be week 5. I know how to get the week of the year number just not week of the month.

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