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?
I have laptop with an external e-sata/USB combo port. I have an internal Seagate SATA drive removed from another laptop. I want to recover the data in this disc. Is it possible to connec t this hardisk through the e-SATA port? If so, what cable would I need to connect in?
Hi, I'm pretty new to C# and asp.net so aplogies if this is a really stupid question.
I'm using a grid view to display a number of records from a database.
Each row has an Edit Button. When the button is clicked I want an ID to be passed back to a funtion in my .cs file. How do I bind the rowID to the Button field?
I've tired using a hyper link instead but this doens't seem to work because I'm posting back to the same page which already has a Permanter on the URL.
asp.net
<asp:GridView ID="gvAddresses" runat="server" onrowcommand="Edit_Row">
<Columns>
<asp:ButtonField runat="server" ButtonType="Button" Text="Edit">
</Columns>
</asp:GridView>
c#
int ImplantID = Convert.ToInt32(Request.QueryString["ImplantID"]);
Session.Add("ImplantID", ImplantID);
List<GetImplantDetails> DataObject = ImplantDetails(ImplantID);
System.Data.DataSet DSImplant = new DataSet();
System.Data.DataTable DTImplant = new DataTable("Implant");
DSImplant.Tables.Add(DTImplant);
DataColumn ColPostCode = new DataColumn();
ColPostCode.ColumnName = "PostCode";
ColPostCode.DataType = typeof(string);
DTImplant.Columns.Add(ColPostCode);
DataColumn ColConsigneeName = new DataColumn();
ColConsigneeName.ColumnName = "Consignee Name";
ColConsigneeName.DataType = typeof(string);
DTImplant.Columns.Add(ColConsigneeName);
DataColumn ColIsPrimaryAddress = new DataColumn();
ColIsPrimaryAddress.ColumnName = "Primary";
ColIsPrimaryAddress.DataType = typeof(int);
DTImplant.Columns.Add(ColIsPrimaryAddress);
DataColumn ColImplantCustomerDetailsID = new DataColumn();
ColImplantCustomerDetailsID.ColumnName = "Implant ID";
ColImplantCustomerDetailsID.DataType = typeof(int);
DTImplant.Columns.Add(ColImplantCustomerDetailsID);
foreach (GetImplantDetails Object in DataObject)
{
DataRow DRImplant = DTImplant.NewRow();
DRImplant["PostCode"] = Object.GetPostCode();
DRImplant["Consignee Name"] = Object.GetConsigneeName();
DRImplant["Primary"] = Object.GetIsPrimaryAddress();
DRImplant["Implant ID"] = Object.GeTImplantCustomerDetailsID();
DTImplant.Rows.Add(DRImplant); <--- this is what I need to be added to the button
}
gvAddresses.DataSource = DTImplant;
gvAddresses.DataBind();
Hello,
I load some data from file:
GInputStream* input_stream;
GFile *file = g_file_new_for_path(file_path);
input_stream = g_file_read(file,generator_cancellable ,NULL);
g_input_stream_read(input_stream, buffer, sizeof (buffer),generator_cancellable,error);
How can i load g_input_stream_read function result to the GdkPixbufLoader object?
Thank you.
Hi, I want to generate some test data so for each row in a table I want to insert 10 random rows in another, see below:
INSERT INTO CarFeatures (carID, featureID)
SELECT C.ID, F.ID
FROM dbo.Cars AS C
OUTER APPLY (
SELECT TOP 10 ID
FROM dbo.Features
ORDER BY NEWID()
) AS F
Only trouble is this returns the same values for each row. How do I order them randomly?
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?
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.
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?
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 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.
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!
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 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
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 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?
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'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?
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.
<mx:Label text="{(item1 as INewsItem).displayName}"/>
For the above code in Flex, I get this warning :
: Data binding will not be able to detect assignments to item1.
Why? How to Fix it?
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.