What are the advantages of using C++ based Classes/Objects over using legacy C Structures for managing standard Data Structures like Linked List, Stack, Tree, Queue ..etc? Let me know if the question is not clear.
I'm working on a web based form builder that uses a mix of Jquery and PHP server side interaction. While the user is building the form I'm trying to determine the best method to store each of one of the form items before all the data is sent to the server. I've looked at the following methods
Javascript arrays
XML document
Send each form item to the server side to be stored in a session
Hey,
I'm developing a web application that provide a service of online reservation, and I need to save the data (for example in a specific day and access to them).
How can I do that.
Is it possible using : System.Web.UI.WebControls.Calendar
I currently am working on a web application that needs to collect data from a form and will take the information and put it in a report format and sent it to a fax machine and print it out.
What is the easiest way to do this. I would like it to act similar to collecting informastion off of a form and then sending an email, but I would like to send it to a fax instead.
Thanks!
The Core Data Programming Guide talks a lot about what not to overwrite. So the question is: What is good to overwrite?
Like I see it, I can't overwrite -init or -initWithEntity:insertIntoManagedObjectContext:
So where else would be a good overwrite point to set up some basic stuff? Or is it generally not needed to do custom initialization? Does the whole thing rely only on accessing properties which then start to do fancy things? So no custom initializations?
Hi all,
I've a scenario where my java program has to continuously communicate with the database table, example my java program has to get the data of my table when new rows are added to it at runtime. There should be continuous communication between my program and database.
if the table has 10 rows initially and 2 rows are added by the user, it must detect this and return the rows.
My program shouldn't use AJAX and timers.
Please Help.
I'm getting average prices by week on 7 million rows, it's taking around 30 seconds to get the job done.
This is the simple query:
SELECT AVG(price) as price, yearWEEK(FROM_UNIXTIME(timelog)) as week from pricehistory where timelog > $range and product_id = $id GROUP BY week
The only week that actually gets data changed and is worth averaging every time is always the last one, so this calculation for the whole period is a waste of resources. I just wanted to know if mysql has a tool to help out on this.
How to create a new data type which to can check/validate its schema when is created a new variable (of that type)?
By example, to validate if a string has 20 characters, I tried:
{{{
// Format: 2006-01-12T06:06:06Z
func date(str string) {
if len(str) != 20 {
fmt.Println("error")
}
}
var Date = date()
type Account struct {
domain string
username string
created Date
}
}}}
but it faills because Date is not a type.
We have a xml column in SQL Server 2008. We need to do reporting off the data in the xml so we're going to select the xml into a flat table. The flat table has columns that correspond to various nodes in the xml.
What is the best way to do this using SSIS?
Is this a good approach? Or should we just try and write the reports directly off the xml column?
Hi,
Ok so I have 2 list boxes one is connected to a database the other isnt.
I want to be able to send the selected item from the listbox connected to the database to the one that isnt.
Ive written this code
listBox2.Items.Add(listBox1.SelectedItem);
But instead of copyin the item i get "
System.Data.DataRowView
Anyone havin any advice?
Hi,
I don't see a LINQ option when picking a data source for a grid view - any ideas?
I just upgraded to Visual Web Developer 2010. I see the other options like SQL etc.
Thanks!
I'm new in iOS development and i need simple example (project) with explained two-entity coreData with to-many relationship between A and B entities on iOS6 with storyboard interface and ARC. In storyboard should be two UITableView controllers which present entities A and B and two UIViewControllers which present adding string data from text fields
I searched in many books, sites, video lessons like "lynda.com", but i still not understand how and where i should implement two-entity coredata with one to-many relationship in code.
Can someone give me link to understandable tutorial or put the project on GitHub?
We have a database setup that consists of two parts: a static structure, and dynamic additions. For each database, the dynamic can be different, and sometimes we don't have data for all the dynamic fields. Rigt now, we check for empties by looking at the total count of records in the entire table, but we want to move to a more refined method of checking for empties if possible. Is it possible to quickly check through several hundred fields and see which ones are empty and which ones are populated?
I want to send the below data to default.ctp, I want to display menus in all the pages, I'm using Auth, The problem is if I'm logged in I get the Menus correctly, but if I logout, I'm getting error saying variable'$topMenu' not found.
The MenuController can be accessed only if logged in.
$this->loadModel('Menu');
$this->set('topMenu',$this->Menu->find('all'));
Any help on how to solve this?
Is there any existing Python library that can validate data in Excel format? Or what kind of keyword should I use to search such an open source project? Thanks.
i will need to store 3 tables of data
instead of implementing an entire database backend, i just want to store the record for these tables in application.settings
has anyone done this before?
i dont care about security
is it advisable to do it with application settings? how else would you do it?
perhaps storing a matrix in application.settings would be OK?
In Core Data, most of the time relationships are modeled bidirectional. But the docs say in another place:
It typically only makes sense to model
a to-one relationship in one
direction.
I'm searching files and returning lines that include the search text, and I'm not really sure the best way to display the information I get. Every time I get a match, I want to show, in some sort of control, the File it came from, and the whole text line. (aka streamreader.ReadLine() result). First I tried just putting it all in a read-only text box, but it doesn't have a scroll bar.
What is the best form control to help me display this data neatly?
I recently read that using flexible array members in C was poor software engineering practice. However, that statement was not backed by any argument. Is this an accepted fact?
(Flexible array members are a C feature introduced in C99 whereby one can declare the last element to be an array of unspecified size. For example: )
struct header {
size_t len;
unsigned char data[];
};
I think the question is clear enough. Some of the columns in my datawarehouse table could have a relationship to a primary key. But is it good practice? It is denormalized, so it should never be deleted again (data in datawarehouse). Hope question is somewhat clear enough.