Get A Range From An Array?

Dec 13, 2011

I have a string array, and I need to get a range out of that, say 10 items counting from index 20.

I see there is an extension method called Take that can take a number of items from the beginning of the array, but I also need to specify the starting index.

View 3 Replies


ADVERTISEMENT

Obtain Index From Array Where An Input Value Lies Within A Range Of Values In The Array?

Dec 12, 2010

Per this UserControl that can be added to a blank form, I would like to use the HorizUnits array below to map custom grid x coordinate from a mouse x position.For a given input value 13, what syntax would I use to obtain a value of 2 where 13 lies between Value 10 and 16 for which 2 (Name) would be the custom grid's displayed coordinate position?

View 1 Replies

2 Dimentional Array - Convert To An UNLIMITED Range Array?

Apr 30, 2012

How i can convert this array to an UNLIMITED range array?

[Code]...

View 2 Replies

Array In From A Range In Excel?

May 31, 2010

OK I have been gooding for over 8 hours trying to figure this out. Bare with me I do not work with arrays much.I have brought an array in from a range in excel. This works fine. Through debugging i can see the values are brought in correctly.

Issue is I want to see if a string exists within that array (or cells).I have tried lots of things and pretty much mutilated my code but here it is:

[Code]...

View 5 Replies

Make An Array With Unlimited Range?

Apr 30, 2012

How i can make an array with unlimited range in VB.NET and also get the number of variables containing?

I tryed:

Dim _items(,) As String
_items(0, 0) = "hy"
_items(0, 1) = "hello"

[Code].....

View 1 Replies

.net - Exception When Trying Iterate Excel Range.value Like Array?

Nov 25, 2011

I tried the following : (VB.Net code)

[Code]...

View 1 Replies

Office Automation :: Excel Range Into A .NET Array?

Jan 10, 2011

I have formulas in certain cells and happens to be part of the Excel range that I pull into a vb.net array and when I write the array back out to the Excel Range, I loose all the formulas in it.Is there an option to retain formulas in a .net array?

View 3 Replies

Splitting String Array Out Of Range Error

Sep 24, 2010

I am creating an app to use as a data logger, that receives serial data from a micro-controller and displays the various values and to plot some line graphs of the data, as well as eventually sending commands to the micro-controller, right now though I'm just trying to get the data being received to display in a rich text box like :

[Code]...

View 9 Replies

Converting From VB6 - Reading Excel Range Into Variant Array

Oct 18, 2011

In VB6 I could assign an Excel range directly to a variant array dim vArr as variant vArr = xlSheet.range("A2:A10").value and then work with vArr to pull out the values I needed. This doesn't work in VB 2010. Is there a replacement procedure to allow me to read in a range (perhaps large) all at once and then process the data without needing Excel?

[Code]...

View 6 Replies

Copy Data From Excel Range To Array Or Some Other Source?

Apr 28, 2010

I am trying to open an exisiting excel sheet and then I want to copy a range of cells in to an array in one shot instead of looping thru cell by cell.And then I want to do some calculations and then move them to database tables.[code]...

View 3 Replies

Efficiently Assign Cell Properties From An Excel Range To An Array

Jul 26, 2010

In VBA / VB.NET you can assign Excel range values to an array for faster access / manipulation. Is there a way to efficiently assign other cell properties (e.g., top, left, width, height) to an array? I.e., I'd like to do something like: Dim cellTops As Variant : cellTops = Application.ActiveSheet.UsedRange.Top..The code is part of a routine to programmatically check whether an image overlaps cells that are used in a workbook. My current method of iterating over the cells in the UsedRange is slow since it requires repeatedly polling for the top / left / width / height of the cells.I'm going to go ahead an accept Doug's answer as it does indeed work faster than naive iteration. In the end, I found that a non-naive iteration works faster for my purposes of detecting controls that overlap content-filled cells. The steps are basically:

(1) Find the interesting set of rows in the used range by looking at the tops and heights of the first cell in each row (my understanding is that all the cells in the row must have the same top and height, but not left and width)

(2) Iterate over the cells in the interesting rows and perform overlap detection using only the left and right positions of the cells.[code]

View 2 Replies

Reading Named Range Into Array - Constant Expression Required

Mar 11, 2011

I need to read a named range into an array. Then if the value in the 1st position matches a static value, read the value in the second position. I've been looking into array's and this is what I think will work, however I get a compile error on the columns.count "constant expression required". Is it because in the DIM statement I'm attempting 2 things? This is a macro in Excel. The range name is Data1 and the string comparison is "AnyString". The second value will be an integer.

Sub macro1()
Dim rng As Range
Dim x As Integer
Dim y As Integer
rng = Range(Data1)
[Code] .....

View 3 Replies

Office Automation :: FindAll Matching Strings In Excel Range / Array?

Feb 12, 2012

I am importing data from an Excel spreadsheet into an array. I want to search the array to find the location of each "cell" with text that contains a certain string (e.g. "MyTestString"). So far the best I can do is loop through each element and test it using CStr, but the code takes too long to execute (please assume all variables are properly declared):

[Code]...

(1) Is there a better way than looping through each element, such as a built-in function or a lambda that will return an array containing *the location of* all string matches?

(2) Would it be faster to convert the Object array to a String array rather than using CStr on each element? If so, what is the fastest way to convert a 2-dimensional Object array to a String array?

I've considered using Excel's Find function instead, but would prefer to limit the number of Interop calls to Excel.

View 1 Replies

.net - Interop Cannot Call Get_Range, And Cannot Use Two-dimensional Object Array Returned By Range().Value2?

Jun 1, 2011

Trying to replace Cells(RowIndex,ColumnIndex).Value() calls by row-wise references for performance, I permanently fail at referencing the result. Starting with Excel Interop - Efficiency and performance, which contains the tip to use get_range, i.e.

//get values
object[,] objectArray = shtName.get_Range("A1:Z100").Value2;
iFace = Convert.ToInt32(objectArray[1,1]);
//set values
object[,] objectArray = new object[3,1] {{"A"}{"B"}{"C"}};
rngName.Value2 = objectArray;

[Code]...

However, referencing Values with two dimension indices always returns an "index was outside the bounds of the array" exception. Inspecting the array with the debugger shows a nice 2-dimensional array which should has 17 elements on the second dimension, so Value (0,0) should indeed be a valid reference -- but it isn't:

The debugger lets me inspect Value, I can also drill down to Value(0,0) and see the correct value, but re-evaluating just that element, i.e. inspecting "Value (0,0)" returns above message.

View 2 Replies

VS 2008 - Array - Error Report Shows An Event Type Of Clr203r And An Index Out Of Range Exception

Aug 12, 2011

I have one user that is having a problem with my application, the error report shows an event type of clr203r and an index out of range exception. From what I've read this seems to have "something" to do with arrays or lists. (What that something is, so far, is beyond me or anything I've researched). I do have one array in my program -- myarray(13) as byte and I do have the syntax right as far as noting 20 elements in it. in my other bits of code.

I'm reading those bytes in the serial port, deciphering them and performing some actions. (to be vague). But just with what I've said, can anyone point me to a possible problem? Is the index out of range exception ALWAYS concerned with just arrays or lists? Or could it be something else?

View 16 Replies

Use An Array With Index Number To Insert The Text But Index Was Out Of Range?

Apr 30, 2012

Trying to input a high setpoint, low setpoint, a % load, and number of compressors, then calculate the temp that all compressors are off. Then build a datagridview with the staging of compressors from all off to all on for each compressor up to 10 compressors.I am trying to insert headers from 1 to 10 compressors (Variable) with the text "Comp1", "Comp2", etc....Two rows with header. I am trying to use an array with index number to insert the text, but that is where my problem happens."Index was out of range".Here is my code

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer, num1, num2, num3, num4, alloff As Single, stg As Single
TextBox1.Focus()[code].....

View 4 Replies

Passing Array Values (sequential) To A Range (non-sequential)?

Jun 12, 2009

I am trying to copy the values to another sheet but not in any sequence eg.A1,B2,C4,D7 ........and so on. I am trying this slick way of doing it by the code below ( found on the web) without success so far but I got a feeling I am close to the solution. I am new to any kind of Programming. This is my first attempt. (so a chuckle or two is ok after seeing my "difficult" problem)

(This is an excel VBA Prblem)
Sub justdoit()
Dim s As Variant

[code].....

View 2 Replies

Random Number In Range Is Outside Range

Dec 14, 2009

I am using the following code in the Load method of a VB form to generate random numbers in the range 1 to 8. Without fail after enough loops the range is exceeded and 9 is the random number returned every time. The line using the Rnd function is from: Rnd Function (Visual Basic)

[Code]...

View 8 Replies

VS 2008 Error: Range Variable 'sender' Hides A Variable In An Enclosing Block Or A Range Variable Previously Defined In The Query Expression

Mar 25, 2010

I am getting the error:"Range variable 'sender' hides a variable in an enclosing block or a range variable previously defined in the query expression."for this

Imports System.Data.SqlClient
Imports System.Linq
Public Class Form1

[code]....

I can select any other item from the table without the error. "sender" has the same properties as "receiver" in the SQL table.

View 2 Replies

Using Range In VB When End Of Range Varies?

Jul 7, 2010

I'm using vb in excel 2007 and need to work through a range or array, the size of which varies from time to time.

The examples of using range always demonstrate using literals eg "A1:A25"

How can I programatically determine the end of the range - ie up to where the cells value is blank

And then can I use a variable in the range statement - eg .[A1:Lastcell]

View 1 Replies

VS 2010 : Copy This Array To A Temp Array So That The Temp Array Has All The Same Values As The Original Custom Array?

Jun 19, 2011

I have an array of people stored in a custom structure array... how can i copy this array to a temp array so that the temp array has all the same values as the original custom array?

View 4 Replies

Seaching An Array - Store In A 1d Array A Set Of 5 Place Names And In 2d Array The Distances Between Places

Jul 28, 2010

I am trying to create the following program Store in a 1d array a set of 5 place names and in a 2d array the distances between the places. Ensure that the order of the places is the same in both arrays. When the names are places are input the distance between them is displayed. If they are not both in the table a suitable message is displayed

Dim town(1 To 5) As String

Dim Dist(1 To 5, 1 To 5) As Integer

Dim First As Integer

[CODE]......................

I think the best way forward is pass a parameter to the function findnumber.

View 1 Replies

.net Index Out Of Range?

Sep 27, 2009

Public extreme_foods As New System.Collections.ArrayList()
Dim i As Integer
i = 1
For Each s In split2
extreme_foods(i) = s
i = i + 1
Next

anyone know why extreme_foods(i)=s is giving INDEX OUT OF RANGE??

View 1 Replies

C# - Specify Range >2GB For HttpWebRequest In .NET 3.5?

Jul 4, 2011

I'm building this class to download files in parts/sections/segments. In .NET 4.0, I can use this code to specify the range to download from

long startPos = int.MaxValue+1;
HttpWebRequest.AddRange(startPos);

and it works because there is a long overload for the AddRange method. When I looked up the .NET 3.5 version, I realised the AddRange() method allows using int only. The possible workaround would be using the AddRange(string, int) or AddRange(string, int, int) methods. Since the class will have to work in .NET 3.5, I'll have to go with the string specification but unfortunately I can't seem to find any sample code that shows how to specify ranges using this procedure in .NET 3.5. Can anyone show be how to do this?As the first code sample I wrote shows, I would like to specify a range of type long instead of int. Using type int allows requesting for byte ranges only up to 2GB but long allows requesting for byte ranges beyong 2GB.

The question therefore is: How do I specify byte ranges of 2GB or higher on HttpWebRequest in .NET 3.5?

View 3 Replies

Check If Int Is Within A Range?

Nov 4, 2009

On my form i have a textbox that users can enter a value into, how to i check whether the value entered in the textbox is within the range bewteen two other numbers?

i.e

Top int is 10
Bottom int is 5
The user enters 7 into the textbox

I want to check that the value entered is within the top and bottom range, and in this case as the number 7 is between 5 and 10 the answer would be yes?

If the user had entered 3 for example, then the answer would be no.

The Top and Bottom Int's will be set at runtime by the value entered into another textbox so will differ each time the user uses the form.

View 2 Replies

Date Range In .net?

Jun 23, 2010

I have following code and I can filter data on grid but when I pick same date in 2 datepicker it shows nothing.

[Code]...

View 9 Replies

How Range Can Be Declared

Apr 28, 2009

i am using the below code but getting error.

View 5 Replies

How To Add Up A Range Of Numbers

Apr 23, 2011

Write a program that will allow the user to be able to choose whether they want to add up a range of numbers in one of three different ways. 1) even numbers 2) odd numbers, or 3) consecutive integers. Use buttons for user choices.

Instead of limiting the user to just adding up these numbers you will also supply an Average Button that will show the average of the numbers rather than just the sum. Only the result that they have selected should be visible.

The program should look similar to the program below:

This is the program I was asked to make.

my code soo far is.....

[code....]

I couldn't figure out the formula to use for this but I assume its the same for each part of the program just with a little change.

View 6 Replies

Index 0 Is Out Of Range

Sep 21, 2010

my question is to turn the text in a text box red when it receives focus, and black when it loses focus. I seem to get that "index is out of range" pop-up message. [Code]

View 3 Replies

Index Is Out Of Range

Apr 25, 2010

I am trying to make a tabbed web browser, on my first tab every thing works fine but on my 2nd 3th etc tabs when i try to do anything type in a url go home refresh anything it says index 0 is out of range perameter name: IndexI am new at Visual basic and i cant find what my problem is.

View 9 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved