Load Datareader Into Array?
Jun 5, 2009How do I load data from a datatable into an array.
Dim
dtDataTable As New System.Data.DataTable
dtDataTable = dsStaffHoursWorked.vwGroupProjHoursDate
Dim DRs = dtDataTable.Select("enddate = '05/14/05'")
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VS 2010 : Create Multi-dimensional Array From Datareader From Datareader?
Feb 20, 2012I have an SQL statement like:
SELECT FNAME, LNAME, CITY from EMPLOYEE
How do I create a multi-dimensional array from a datareader which should store values like:
John, Doe, LA
Mike, Johnson, PASADENA
Freddy, Kruger, Long Beach
Load DataReader Into DataTable?
Jul 7, 2009[code]...Load DataReader into DataTable
This code return an error, and with breakpoint i get this error on the items line:
"Item = In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user."
Datareader To Array List?
Mar 21, 2012I want to load all of the LOCATIONS in the Location table to a Combobox and then for any found locations (in another table) to be deleted from that combobox. Im using a Array list, but can't get the Data reader to write to the Array list.
Dim SQL As String = ""
Dim Reader As OleDbDataReader
Dim i As Integer = 0
Dim LocationArray As ArrayList = Nothing
[Code]...
Save Datareader To Array?
Aug 23, 2011Got an array, why cant I save dataread info to array pos?
While myDataReader.Read()
' txtPhone.Text =
Tempstr(i) = myDataReader.Item("Phone").ToString + vbCrLf[code].....
apparently Object reference not set to an instance of an object.
VS 2008 Fill Array With DataReader?
Jan 11, 2011How can I fill this Percentage array with Sql data reader..
Dim StudentID As Integer = Me.ComboBox1.SelectedValue
Dim Percentage() As Integer
Dim con As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=D:Database
[code].....
Save A Retrieved Column From A Datareader Into An Array?
Mar 17, 2011I would like to retrieve a single column of about 800 rows in a table and save these values in an array so as to reference them later on. How can I do it? I tried:
[code]...
And it didn't work. The col1 is of type Int64 and so is the array prev_ob(). Please let me know how I can save it to an array.
.net - Populate An Array Of Object Based On DataReader Data?
Jun 30, 2010I am not sure how to phrase my question properly but I want to achieve something like this.
I have a class named Products public class Products
private ID as Integer
private Name as String
Public Property ProductID()
Get
Return ID
[Code]...
When I do the same, I am getting an error "Object Reference Not Set to an Instance of an Object.
VS 2010 Datareader To Multidimensional Array To MultiColumn ListView?
Oct 7, 2011I am using a datareader to pull data from my database. I store the data in a multidimensional array in a seperate class file. I access the values in the array from a form through properties.The problem I am having is when I run the project as I step through the code I can see the values being added to the array but when access it from a string property it shows up as string System.String[,]. I would like to have my array transposed accross the listview under the corresponding column. below is the code I am using.
[Code]...
Datareader - Error - "there Is A Datareader Associate With This Connection That Need To Be Closed"
Aug 17, 2009I have a problem with my project. here is the problem:
My code for login is as follows:
dim conn as SqlConnection = New SqlConnection("Data Source.................)
dim cmd as SqlCommand = New SqlCommand("Loguser",conn)
cmd.CammandType = CommandType.StoredProcedure
[CODE]...
Now the error i get is that "there is a datareader associate with this connection that need to be closed"
.net - Array List Won't Load?
Feb 24, 2012I am trying to make a MVP kinda system and I am trying to define and load an array, through the system. Then read it out and it should populate a ListView1 object.I know they are set correct, because the console tells me it's set ok.I know the sample would fill with the same item (a week to be exact) every time i add an item, but that's not the point.Also, is it possible to define the array without the index, i mean now i set it with (6) so it sets 6 blocks for strings, but I would like to be more flexible. Is there a way like in php for example
$item["firstname"]
$item["lastname"]
...
ClientlistItem.vb (definition of the actual item)
Public Class ClientlistItem
Private entry(6) As String[code].......
How To Load File Into Array
Apr 30, 2009I'm having some more trouble with working with arrays. My assignment is to take an input file of 10 numbers and display the original array, the array reversed (1st element is last element, etc.), the average of the parallel elements (nth element of both arrays), the average of the original array, and the elements greater than the average. I know I need to load the file into an array. However, I can't seem to figure out how to reverse it, nor average the two even if I can get it reversed.
View 6 RepliesLoad Array From Excel?
Dec 31, 2008I am trying to load an array from an excel sheet (in xml), whic I have managed by altering some code kindly provided by Beth Massi. the trouble is that I don't really understand some of the original code, hence I cannot remove the binding to some objects in the GUI that I don't need.
[Code]...
Load File To Array
Oct 20, 2011i'm tired of searching about Load file from pc to my app. and then read a file in hex.
now i have these code and everything is ok with small file size. less than 1GB files my question is all of us know Hex files reader like (Hex Workshop Editor 6... and Hex Editor Neo) i Download these and i read the hex of file over (36 GB) (39,490,420,735 bytes) without any save bytes in Ram Memory???
IN vb.Net when i try to read Hex of file over 1GB in array.> windows 7 not responding iknow that's because i have 2GB in my machine!! what's the way that (hex workshop) use to load any file Regardless of size this is the code that i use.
[Code]...
Load File To Array?
Oct 22, 2009On Error Resume Next[code]...
on debug mode, i got the pic array to contain nothing but 0.
Load File To Hex Array?
Oct 20, 2011i'm tired of searching about Load file from pc to my app. and then read a file in hex. now i have these code and everything is ok with small file size. less than 1GB files
(my question is)
all of us know Hex files reader like (Hex Workshop Editor 6... and Hex Editor Neo)
i Download these and i read the hex of file over (36 GB) (39,490,420,735 bytes)
**without any save bytes in Ram Memory**???
IN vb.Net when i try to read Hex of file over 1GB in array.> windows 7 not responding
iknow that's because i have 2GB in my machine!!
what's the way that (hex workshop) use?
this is the code that i use.
X = String.Join(" ", IO.File.ReadAllBytes("Location of file").Select(Function(b) b.ToString("X2")).ToArray())
Load Strings Into Array?
May 30, 2009Why does the following not work below? I get an error on the first bracket "{" saying "Expression Expected"[code]...
View 2 RepliesLoad The Array With The 8 Variables For Each Box?
Mar 11, 2010I need to manipulate data for 1000 boxes, each one of these boxes has 8 variables.How to declare an appropriate array? and how to load the array with the 8 variables for each box?
View 1 RepliesHow To Load A 2 Dimension Array With Strings
Apr 21, 2011I need to manipulate data for 1000 boxes, each one of these boxes has 8 variables.How to declare an appropriate array? and how to load the array with the 8 variables for each box?
View 20 RepliesHow To Load Elements Into A String Array
Jun 2, 2011I have the following code to display filenames in a gridview. the variable filename contains the filenames that are present in a folder. now i want to store these filename values into a string array for further usage.[code]
View 2 RepliesLoad A Byte Array Into Excel?
Jul 18, 2011I have a btye array that I would like to load into excel. This will do this in vb.net with visual studio 2008.
How can I load the byte array into Excel via memory or with code?
Load An Array From A Txt File And Write To It Also?
Jul 10, 2010VB 21010 How to load an array from a txt file and write to it also?
View 4 RepliesLoad An Array Of Images Into Memory?
Feb 6, 2010I'm newb in the .NET framework so how could I go about loading an array of images into memory?[code]...
View 4 RepliesLoad Array With NumericUpDown Values?
Sep 7, 2011I have a form with 84 NumericUpDown controls. How can I load each value into an array. E.G. Aryhours(1) = NumericUpDown1, AryHours(2) = NumericUpDown2..
View 3 RepliesLoad Image Files In An Array?
Nov 29, 2010I accomplished the task of creating a picture viewer that finds pictures in a directory,adds them to a listbox, and displays them in a picturebox at intervals using a timer. Now, I am trying to achieve a similar task using an array in a continuous timer-display fashion so that after the last image the process starts over from the first image again
Public Class Form1
im file(5) As System.IO.File
Dim num As Integer
[code].....
Save (and Load) A 2 Dimensional Array?
Nov 7, 2009saving and loading to a file. I am using Visual Studio Express 2008.
I have an array as follows:
Dim m(100,100) As node
Public Structure node
Public i As Integer
[Code]...
and I'd like to save to a file the m array.
I am not particularly bothered about data security and looked at xml serialization but cannot get this to work to save the m array.
Define Image (Load By Array) Clicked
Apr 30, 2012I have a form that contain 30 image (load by array) and when one of the image clicked, the background of my frmMain should change to the image clicked. The program has no problem by launching the code below :
Private Sub PictureBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles picWallpaper1.Click
frmMain.BackgroundImage = picWallpaper1.Image
End Sub
Private Sub PictureBox2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles picWallpaper2.Click
[Code] .....
But this way is not effective if I want to increase more image up to 50,60 in future the program will loaded with these code.
Load A One-Based Array From VB6 Data File In .NET?
Feb 10, 2011Say I have a data file that was created in VB6 like this:
Dim arr As Variant
Dim unit As Integer
Dim i As Integer
unit = FreeFile
Open "SomeFile.dat" For Binary As unit
[Code]...
Load An Array With 30 Numbers That Print To A List Box?
Nov 5, 2009I am trying to learn about arrays and the for next..loop. This is a noob question but I cant seem to get it to work. I am trying to load an array with 30 numbers that print to a list box.
Dim a(29) As Integer
Dim strVar As String = "{0,-5}{1,5}{2,5){3,5}{4,5}"
Dim x As Integer
[Code].....
For some reason I keep getting errors in the output statement that says "Input string was not in a correct format."
The output should list 1 to 30 in the list box
Load Array From A LINQ Query Using Program?
Oct 25, 2010I am new to LINQ, but have been able to query SQL using LINQ to SQL and then I can data bind the results to a GRID or DROPDOWN LIST with no problem. What I would like to do is load a column into an array. I have seen examples for something like this in C#[code]...
View 12 Replies