Am about to do a homework, and i need to store quite a lot of information (Dictionary) in a data structure of my choice. I heard people in my classroom saying hash-tables are the way to go. How come?
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?
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
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'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 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?
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.
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?
None of the scribe examples I've seen actually mention the best way to take logs/logfiles and send them to scribe. I could configure a logrotate script that has a postrotate section that "cats" the rotated file to scribe (but then I get minutes latency at best).
The other option is to keep a "tail -f= | my_scribe_sender" and hope that the process never gets killed. However then you really can't guarantee that you're not missing/duplicating data.
Hi, is it possible to handle two data sources in the UIPickerView?
I have here a segmented control that would control the display of the picker view.
So, for example, when first segment is clicked, the picker will display person's name. Then, when second segment is clicked, picker will display place's name.
Thanks
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.
I have a three column Table View populated by two NSMutableDictionaries which share the same keys (ie key | value1 | value2 ) with dict1(key,value1) and dict2(key,value2).
I want to manually enter data in the third column and create the key/value objects in dict2. But when I do that, my code picks the wrong key :S
Here's the code for the delegate :
- (void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex
{
if ([[aTableColumn identifier] isEqualToString:@"value2"])
{
[dict2 setValue:anObject forKey:[[[aTableView tableColumnWithIdentifier:@"key"] dataCellForRow:rowIndex] stringValue ]];
}
}
Any idea ?
Hi I need some sample MS SQL Employee database with data such as id, surname, name, age, adress etc. It must be quite big, I search with google, but I don't find any good sample.
Can any body help ?
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.
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 am populating data using
<select name="test">
<option value='<%=session.getAttribute("tList")%>'><%=session.getAttribute("tList") %></option>
</select>
but the values are getting display in a single row in the combo box not row wise,where i am going wrong ?
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[];
};
Hi all,,,
I am trying to do a small thing, any 1 help me, I really appricciate...
I have a drop down menu,I want when I select the value, it will call the related data, which I am access with php+mysql, I dont want to jump to other page and show
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.
how do i write a query that returns aggregate sales data for California in the past x months.
----------------------- -----------------------
| order | | customer |
|-----------------------| |-----------------------|
| orderId int | | customerId int |
| customerId int | | state varchar |
| deposit decimal | -----------------------
| orderDate date |
-----------------------
-----------------------
| orderItem |
|-----------------------|
| orderId int |
| itemId int |
| qty int |
| lineTotal decimal |
| itemPrice decimal |
-----------------------
I am doing a project on Calculix Data Visualiser. It is a civil based project. I need to show the structure of beams before applying force and the structure after the force is applied.
I need to change the color of the beams to RED where more force is applied. But i am just able to change the color for lines and not for the phase as a whole. SO pls help me out.
I am working on cleaning up a mess that another programmer started. The created 2 identical databases for different locations but that obviously caused major issues. They are using cakePHP and there are quite a few relationships. I am pretty sure I will have to write a script to import that data from on DB to the other and keep all the relationships but was wondering if there is an easier way to do it.