Loading Huge Volume Of Data Into Treeview?
Nov 16, 2010im using vs2010 and SQL server 2005. what is the best and fastest way to load large volume of data into treeview
View 6 Replies
ADVERTISEMENT
.net - Reduce The Lag Of Loading A Huge List Of Text Lines To A Listbox?
May 27, 2009I am using file.readalllines to read the file into a string, then using listbox.items.addrange and splitting by vbcrlf to insert the items. Is there a way to reduce the lag it causes for loading huge lists?
View 6 RepliesData Validation On Huge Flat-file?
Jun 5, 2011I have a huge amount of data in flat-file format that I would like to validate with Visual Basic 2010. Basically the data is a text file with 300 comma separated fields and 500,000 records.
Any tips, sample code or examples? Are any .NET classes specifically geared for data validation?
As I have different validation rules for each field (some fields are dates, some are currency, etc.) I would like to store the rules away from the code (e.g. in an SQL database table). Has anyone seen this done before?
Loop To Stop After First Data Loading And Continue On To Second Data Loading After When Button Is Pressed
Jun 2, 2011an application i developed using vb 2008 express, to fill a web form with data from an access database, one after another when a button is clicked hasn't given me what i expected. the loop was suposed to stop after filling web form with the first data on clicking a button and continue to fill the webform with the next(2nd) data from the database on clicking the button again. Below is the code i wrote
Private
Sub STARTButton_Click(ByVal
sender As System.Object,
ByVal e
[Code]....
C# - Avoiding Deadlocks And TimeOuts When Processing Huge Data?
Oct 14, 2010I have code in an ASP.NET form that needs to, depending on user entry create messages in the database. We are speaking of potentially thousands of db entries. How do I protect against deadlocks, I mean apart from using Transactions and setting IsolationLevel to Serializable, as well as using WITH(NOLOCK) statement on my select statements since I don't mind a dirty read.
[Code]...
Jquery - Load Huge Of Data In Kendo Grid?
May 19, 2012web method:
[Code]...
with this condition(PACK_DATE > "1388/11/07" 366 records) everything works well.but when i change date to 1388/11/06 1260 records or 1388/11/05 5460 records or ... following error occurs:
[Code]...
Loading TreeView From DataSet?
Jun 6, 2009Getting error messsage "Conversion from string "l.name" to type 'Integer' is not valid." on the higlighted code below. I've tried using the 0 and 1 as the first field "l.name" in the mySelectQuery and 5 or 6 for w.wellNumber.I want the treeview to show each Lease name or field l.name and each w.wellnumber under that lease. The msg box shows me the correct number of records is being retrieved.
Private Sub Load_treSelectWell()
Dim myConnString As String = "integrated security=SSPI;data source=.\ECOLOGICSSQL;persist security info=False;initial catalog=EcoLogics;"
[code].....
IF Works But Loop Required - Huge Network With 20+ File Servers All With Data Spread Out Across Them
Mar 4, 2011My app is a fairly simple and im sure with the right knowledge this would take 2 minutes.. but sadly iv been at it for hours. So my scenario here is a huge network with 20+ file servers all with data spread out across them it can take hours to find the folder required.
Hence this app.. so it consist of a input box, progress bar and a button, using FileSystemObject I plan to interrogate a directory to see if a folder exists (folder specified by user input) however it need to check multiple directories, in my old app I used a list box which wrote to a text file allowing the user to add additional directories then using if statements proceeded through the servers.. however they have added that much that my IF's have ran out really because i know it should have been a loop
Imports System
Imports System.IO
Public Class Frm_main
Private Const FILE_NAME As String = "C:directories.txt"
Dim objReader As New System.IO.StreamReader(FILE_NAME)
Dim Lines() As String = IO.File.ReadAllLines(FILE_NAME)
Dim Dir As String
[CODE]...................
Loading Database Into Treeview In Groups?
Sep 13, 2010I'm thinking about using the treeview for creating a phonelist. The issue here is that I can't think how to load the data into the nodes according the group they are categorized in.
Here's a screenshot of my test_database:
So there is an ID and a row with groups (groep). What I want is that when loading the data a DISTINCT node gets create for each group and that the person is added to the sub-node. Got the faintest idea where to start.
VS 2010 : Loading TreeView Nodes From DataTable?
Nov 23, 2010I currently have a procedure that stores the Level, Parent.Level, and Text properties of each TreeNode in a TreeView control in a DataTable.I can't seem to come up with the logic to load this data back into the TreeView from scratch, though.
Below is what i currently have in place which does not work.
Private Sub LoadTree(ByVal table As Data.DataTable)
treeBilling.Nodes.Clear()
For Each row As Data.DataRow In table.Rows
[code]....
VS 2010 Loading Files/Folders Treeview Combobox
Mar 23, 2011I'm loading a folder (path), which contains folders and files, in a treeview according the combobox-text.
When I load the app. the combobox is filled with the paths. I'm using the SelectedIndexChanged to load the treeview. Everything works.
The issue is that it also starts to load the paths the treeview also gets loaded (slow), but it should only load when I select an item in the combobox.
I tried comboboxselectedtextchanged etc, but without any luck. Besides that loading the files and folders is slow.
Multiple UI Thread - Show An Animated Loading Gif Image Till Data Loading Is Completed In All Text Boxes
Jul 13, 2009I have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
View 8 RepliesReceiving Error "connection Timeout Expired" When Deal With Huge Amount Of Data
Dec 9, 2009The following is my connectionstring: server=(local);database=JnJ3;uid=sa;pwd=sa May I know how can I avoid timeout expired because I keep on receiving error message when deal with huge amount of data. The timeout period elapsed prior to completion of the operation or the server is not responding.
View 1 RepliesVS 2008 - Checkbox On Treeview - Collapse And Expand Treeview When Click Plus Sign (+) On Treeview
May 14, 2011I have a problems with my application..
1. collapse and expand treeview when i click plus sign (+) on treeview, treeview didn't expand subfolder but when i click image, treeview expand it.
2. showing path that i check on treeview when i check the treeview then i'm click the button, then return path that i check
This is my code..
Adding Data In Form After Loading One Person Data
Oct 25, 2009i want to know that when im adding my data in form after loading one person data then 2nd person data the 2nd person data cannot come to next line it is adding on the same line.plz tell me wat can i do?
View 6 RepliesLoad A Xml File Into A Data Set By Loading The Information Into A Data Row?
Jul 5, 2012I am trying to load a xml file into a data set by loading the information into a data row. when i try to complete the task it throws a nullReferenceException. the row has data in it and i used the code earlier and it work.
[URL]
Imports System.IO
Imports System.Xml
Public Class frmMain
[Code].....
Coding A Huge Project
Jul 31, 2009I have been writing code fore a rather large project in the past mounts And Im beginning to think about arcitecture of the program... Its just a complete mess. I dont know how to tackle so much code..Its beginning to be impossible to debug.Basically Im doing the following prosidures. Importing several a Excel files and getting the rfrequency data from these files..Displaying them in a litview and a datatable... so you are able to edit them..Doing some calculation and exporting the results back to a xls file.Problem is now that im going to add more functionallity to the program,. What im woundering about is, is there some good unofficial guides on how to program with OOP?
View 11 RepliesDealing With HUGE Numbers
Sep 21, 2009I've been messing around with prime numbers for a while now, but I now want to use massive numbers, say a few million digits in length. Is there a way of storing and performing mathematical functions with such large numbers? Is it even possible on my home computer? I read on another old thread, something about a big number library, but the links he gave are now dead.
View 4 RepliesTXT Data To TreeView?
Mar 11, 2010Am trying to populate a TreeView from a TXT file My TXT file look like that :
[STANDARD_DATA 0]
STD_NAME=RED 1260418
BAT_DATETIME=1087475867,
[Code].....
with this code i always mange to find my 1ste Nodes and i realy dont know how to the get the child
'lost' A Huge Post In The Editor?
Aug 1, 2008Ok New thread - god I hate laptops sometimes - I just 'lost' a huge post in the editor due
View 1 RepliesFind String In Huge Txt File?
Jun 15, 2010I have a huge .txt file which contains X & Y data seperated by serialization. Each serialization contains 1K x and y data points, the text file is about lines 1,340,000 long. Sometimes I need to go into the .txt file and find certain sets of data so I can plot and overlay them which gets tedious. I am going to write an application that I can just write the serialization into a text box on a form and and it will seach all of the txt files for the right data, put them into arrays, and then load them up into excel. My question is how would I search the .txt file for the correct serialization? Would I first read it into an array and then try and split it that way, or is there a way to just open the .txt file and search for the serialization without putting it into an array first?
View 3 RepliesHow To Sort Just Part Of A Huge List Using .NET
Mar 8, 2010In .NET, the Generics Lists have a sort function that accepts IComparer or Comparison. I'd like to sort just part of a list. Hopefully I can specify the start index, count of elements to sort, and a lambda function. It looks like you can only use lambda functions to do this if you're sorting the entire list. Is that right or did I miss something?
View 4 RepliesHUGE Icon In Sound Mixer?
Oct 5, 2009My program uses a wmp control to play sound, but I am not sure why it is listed in Windows 7's Sound mixer and has a huge icon. How do I change this?
View 7 RepliesStore HUGE Strings Without Using Settings?
Apr 21, 2012Is there a way I can store HUGE strings without using settings? Or storing it outside the program?
View 1 RepliesTools To Build A Huge Database?
Dec 18, 2011I have a past experience with visual Foxpro and SQL. Now, I need to build a database with multiple data files (say 100 files), each data file with millions of records, each record with dozens of fields.Then, each data file is linked with other files by using different fields. Primary data is in English. Then there would be a translation of the English data is in another language. Primary data in English is stored in separate files whereas the translated data is stored in separate data files.
View 4 RepliesVS 2008 Working With HUGE Numbers?
Sep 22, 2009I've been messing around with prime numbers for a while now, but I now want to use massive numbers, say a few million digits in length. Is there a way of storing and performing mathematical functions with such large numbers? Is it even possible on my home computer? I read on another old thread, something about a big number library, but the links he gave are now dead.
View 1 RepliesGet Data Checked In Treeview?
Mar 8, 2010user can select all node in treeview.i got some code from internet, but i don,t know what is that.(I'm new one).
public void OnCheckChanged(Object sender, TreeNodeEventArgs e)
{
if (EntertainmentTreeView.CheckedNodes.Count > 0)
[code].....
Save A Huge List Of Inventory Items?
Aug 31, 2009I am programing a basic P.O.S. (Point of Sale) system, ad am looking for the best way to save Inventory objects. The object contains a few Singles and Strings (Such as barcode, name, price...ect). Assuming the user could possibly input thousands of such items, what is the best way to store and handle these?
My first, and simplest thought, is to add each inventory Item to an ArrayList, then once the user saves, or closes, the ArrayList prints each object to a text file, then when the program opens it reads the text file to re-populate the Array list. However, this seems very un-efficient (I assume). Would it be better to use an excell file or a Database (I know almost nothing about databases, but I can learn), or something completely different?
VS 2005 How To Read A Huge Text File
Aug 9, 2010Such as the text file has 5000 lines and 500000 columns. Each line has the format "xxx,yyy,zzz,000,...."
View 39 RepliesVS 2010 - Read Huge Text File
Nov 24, 2010I have a huge text file that stores a huge matrix. The size of the file has 120GB. There are tremendous rows and 25 columns. I am only interesting a coulple of columns, say column 3, 6, 8, 13, 20. How to create a small matrix which contains these columns. I want to find a effective way rather than read the entire file.
View 1 Replies