[data] Forum Topics

I am rather new to vb and could use some help. I am using the latest version of vb and am working with a database to add some records. Simply, I would like to have a form that adds a new record into the tblContact table then enter a few …

I kind of understand the basic concept of adding to the end / overwriting the oldest when the buffer is full, but i am not sure about where to add new data in the buffer when there is free space at the start of the array (the left hand side) …

My form1 has datagridview, that is populated by a dataset. I want to pass the selected value of the datagridview to my other form which is form2. How could I do this?

i want to be able to read input from a file and find like entries and then add the corresponding data. i dont know if i explained that well so ill give an example... the file would be like this (just example numbers)... [CODE] 111111 15 222222 6 111111 4 …

I have a hyerarchy of aggregation with data from a txt file. I'll try to draw it here [B]Documento[/B] has arraylist of [U]Pagina[/U] [INDENT][B]Pagina [/B]has arraylist of [U]Parrafo[/U][/INDENT] [INDENT][INDENT][B]Parrafo [/B]has arraylist of [U]Frase[/U][/INDENT][/INDENT] [INDENT][INDENT][INDENT][B]Frase [/B]has arraylist of [U]Palabra[/U][/INDENT][/INDENT][/INDENT] [INDENT][INDENT][INDENT][INDENT][B]Palabra [/B]has arraylist of [U]basicElemento[/U][/INDENT][/INDENT][/INDENT][/INDENT] To construct [U]Documento[/U], I only have to …

Hello, I am trying to make a Data Grid View for a form that will be used by some co-workers. The hangup I am having is one that I am experiencing as a new developer. I have the Data Source set already and I am will be writing to an …

In order to traverse a tree you could use something like this: [B]For inorder traversal:[/B] [CODE=C++] inorder(TreeNode* currentNode) { if (currentNode) { inorder(currentNode->LeftChild); cout << currentNode->data; inorder(currentNode->RightChild); } } [/CODE] [B]For preorder traversal:[/B] [CODE=C++] preorder(TreeNode* currentNode) { if (currentNode) { cout << currentNode->data; preorder(currentNode->LeftChild); preorder(currentNode->RightChild); } } [/CODE] [B]For post …

Hi all, I'm developing a graphing application that plots several lines from a protein sequencer that outputs its values in .csv format. I've read the csv into a DataGridView just fine, which is laid out like this: Cycle | A1 | A2 | A3 (all the way up to A12, …

i am given an assignment to write code on interpolation search binary search(searching an integer in an ordered list). bt i dont have a clear idea about about both of them as i missed the theory class.so can anyone suggest me from where i can get satisfying information about them?

Hello all, I have an xml file with the information below: [CODE] <?xml version="1.0" encoding="utf-8" ?> <ServerNames> <Name>dfwnbonner1</Name> </ServerNames> [/CODE] I am trying to get the Name of a server into a listview. This works fine with the above xml but as soon as I add another server name in …

Sorry but i am really having a hard time with these datasets :). if anyone knows a awsome tut on them i would be very gratefull what i am trying to do is use a database then fill the datasets. i can do that part. but now i want to …

ello, just wanna ask if u all familiar on how to make a code using VB. Act I already call my database from access to appear on web based app, but to make it COLOUR on a specific box can not be done. Before this, I tried to make it …

0 down vote favorite I'm trying to figure out how exactly to use stat() to capture information about a file. What I need is to be able to print several fields of information about a file. So.. [CODE] #include <iostream> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> using namespace std; int …

problem: a list represented using cursor based implementation contains all ACT, BSCS, BSICT, BSIT and BSMATH students. A dictionary is created implemented using open hashing for BSCS and BSIT students. Each grouping the dictionary is a list implemented using cursor based. given below is the definition of the LIST, Dictionary, …

hi all, i need a c++ code to display a non binary tree. it should be used with STL multimap.. please help me to find the same..

[CODE] coordinates2[i][0]= Double.parseDouble(text2.substring(30,38));//X coordinates2[i][1]= Double.parseDouble(text2.substring(38,46));//Y coordinates2[i][2]= Double.parseDouble(text2.substring(46,56));//Z [/CODE] Can I do this: coordinates2[i][j]= coordinates2[i][0]+ coordinates2[i][1]+ coordinates2[i][2]; Is it possible to add them all together ?

Hi all! I have the following situation - three tables in the db : - um_users (id, name) - um_roles (id, description) - um_user_roles (user_id, role_id) I load into a data set two datatables : the "users" one, and another one build on the other two, like this : [code=c#] …

I need to write a program for class. I'm not necessarily looking for code, just help. I need to file input data in this format: 01 - 00:53 - 70 01 - 02:45 - 50 01 - 03:31 - 79 01 - 04:30 - 56 01 - 05:55 - 59 …

i want to know the exact and correct definition of a linear list.should i mention about predesessor of every element too?or mentioning only one sucsessor for each element is enough to define a linear list.pls give an answear asap.i am really confused about it.

I have a datagridview in my windows application. The user can click to sort columns and can move them around. How do I obtain a datable (or similar container) with data in the same order? Thanks.

Hi guys, I am using this code to update a record after searching but it gives me error here is my code please please help [CODE] Dim con As New SqlClient.SqlConnection Dim strCon As String = "Data Source=ITS;Initial Catalog=Payment;Integrated Security=True" Dim strCommand As String = "SELECT * FROM CustomerInformation WHERE …

hello can you help me i don't know how to make this method remove(Node n),in SinglyLinkedList can anyone give a hand on this.. thank you in advance.hoping for your positive responds... [CODE] public class SinglyLinkedList { private Node head; private Node tail; private int size = 0; public Node add(Node …

[CODE] coordinates1[i][0]= Double.parseDouble(text2.substring(30,38));//X coordinates1[i][1]= Double.parseDouble(text2.substring(38,46));//Y coordinates1[i][2]= Double.parseDouble(text2.substring(46,56));//Z [/CODE] How do I combine the above 3 into 1 2D array?

I want to populate a drop down list fetching data from database along with a "select" listitem at the top of the srop down list. I am using dropdownlistname.items.add("select","0") and dropdownlistname.items.insert("select","0") and then i am fetching data from database in a dataset and then binding the data into the drop …

I am Working on Conecting to a database in windos forms C++. I use MVC++. here is a link to my DB file so people can see what i have tried to do in the DB. [URL="http://www.mediafire.com/?yfr52oqcknakk9g"]http://www.mediafire.com/?yfr52oqcknakk9g[/URL] you need access to see this. i have finaly figured out how to …

I don’t have a problem, but sometimes I just love the way this system works. I got the message {"Cannot convert object of type 'System.Int64' to object of type 'System.Data.SqlTypes.SqlInt32'."} {System.Data.DataException} This was the command System.Data.DataRow dr_Test0 = this.XML_DataSet.Tables[0].NewRow(); I also love how they obfuscate code. Finding the designer code: …

Hello, I'm having difficulties with a problem. I made a binary tree with 2 child coming from one parent but now they ask me to create another child meaning, the parent has 3 child. I can manage to create the third child only in the first parent, after that the …

I am in school and as a project I am building a mock Database from SQL Statements. I like having clean code and since I am at home building these statements on notepad to execute at school later I have a questions about white space. When I use CREATE TABLE …

Hello Everyone I have been looking on the net and I found a few things but I am a bit think :P. I need more of a walkthrough kind of things. I am currently making a programe for a game and I need to access a database that has information. …

Hello, I need to store data in large lists (~e7 elements) and I often get a memory error in code that looks like: [code=python] f = open('data.txt','r') for line in f: list1.append(line.split(',')[1]) list2.append(line.split(',')[2]) # etc. [/code] I get the error when reading-in the data, but I don't really need all …

Hi everyone , i try to validate a [string ID] when user input it in a textBox(C#)for searching datarows in database , but it does not send a message "False Input" if i input a wrong string ID which is different from database . protected void button_search(object sender, EventArgs e) …

Dear all, I have something very weird, never experienced it before with c# express edition - i have a piece of selection query that selects all the records within a specific month. - this query works very fine in msaccess, but doesnt work in the run time in c#. so …

Hi guys, For multi dimentional arrays, i know the amount of columns- 3. But I do not know the amount of rows because each input file has a diff. no. of rows(which can go up to a few thousands). So how do I make an array out of it? Thank …

Hi, I wrote a piece of code for doing a recursive printing of all the leaf nodes. But it is not moving beyond one or two levels. Here is the code: [code=php] $root = array( "paa" => array ( "adi1" => array ( "cir1" => array ( "aka", "ra", "vinodh","dkido" …

Hello! I have a Case Study Scenario for which ERD & Use Case Diagram are required. My question is... Should Use Case Actors be the same number of Entities into ERD? E.g. If i have 5 actors in UML it means that I should also have 5 entities of these …

i have a scenario where i need to know what are the entities it has. i found 5 entities. 1- Company 2- Customer 3- Package 4- Shipment 5- Staff I have been told that the company is not an entity. is it true here in this scenario? it says that …

Hello, I am a student and I just finished my first domain model, but I am uncertain if it is correct. Please take a look, any suggestions will be appreciated! :) Here's the assignment description: [I]The idea is that there will be an interactive website, on which users can review …

Hi all, Have been working with datagridviews with datasets, bindingsources, comboboxes, etc. I was having a problem that prompted me to ask a question. First, the problem that I was having. I created a datagridview that was bound to a dataset and then added code that created columns and some …

I have written two programs that encrypts and sends and decrypts and receives a text file in asm. The program works fine, the problem I'm having is setting up the com1 port. The transmitter sends the file fine, but the receiver cannot receive the file until i have set up …

Hi Below is the XML structure <?xml version="1.0" encoding="utf-8" ?> - <Salary> <empNo Required="true" List=”false ></empNo> <Basic Required="true" List="false” >Basic Salary</Basic> <HRA List="false” >Housing Allow</HRA> <TA List="false” >TA</TA> <Others List="true >Other Allowances</Others> <Total List="false” Required="True">Total Salary</Total> - <Sex List="true"> Sex <gender>Male</gender> <geneder>Femal</geneder> </Sex> </Salary> I am having a requirement of …

Hi, We were asked to make a Binary Search Tree program in C. It should be able to traverse the numbers (preorder, inorder, postorder) then display it. And locate the number and display it. And locate the number to delete, delete it, then display the number that was deleted before …

Hi all. This is the scenario that i have right now. i have a stored procedure created in MS SQL 2000 and is linked to my C# program. The stored procedure contains four select statements (which means it will return 4 tables). In my program, I have four datagrids and …

Hi, I am trying to implement a binary tree(not sorted) using recursion. I have figured out most of my function however GetMax and GetMin are confusing me. [CODE]#include <stdio.h> #include <stdlib.h> #include <limits.h> typedef int TreeEntry; typedef struct binary_tree_node { TreeEntry item; struct binary_tree_node * left; struct binary_tree_node * right; …

When I ran a program that had a list of integers with 5000000 elements in it, I was surprised to find that it used 118MB of memory, even when the *only* thing done by the program is the creation of the list. As far as I understand, each node in …

Hello, I am trying to understand the concept of a digital map in a navigation system in a car. Every car today has a GPS installed inside. It calculates the position of the CAR with the GPS and plot the position on the Digital map. The digtal map has a …

I have Repeater it is changes based on one dropdownlist. Now when value of dropdownlist is changed then repeater also change. How I preserved data of repeater. Is datatable is ok for that?

I have a problem in which we are given 2 sets A and B and we have to find set C which contains elements common to A and B.The set A and B can contain duplicates and set C is expected to contain distinct elements(i.e no repetition of the same …

HI, I have a requirement where I need to compare the data in different database(tables having same structure/schema). I know manually I can execute the queries in each database, compare the results and it is done. As this execution is repetitive in nature, how I can automate this. Thanks In …

Someone please help me before I smash my computer. Every time I try to update a database using my data adapters update method I get the following error.....[B]Object variable or With block variable not set.[/B] I can't for the life of me figure out why this is happening. Here's the …

Hello sir, I have add one listbox in my code. i'm assigning data to the list box at runtime from DataSet. The Value member of the ListBox is EmployeeID and Display member of the ListBox is EmployeeName. [B][U]User Can Select Multiple EmployeeNames at Run time [/U][/B]. Now I want to …