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• TextBox data binding validation

  - by Koynov

  *Is it possible to get validation errors(produced by the binding source through IDataErrorInfo or INotifyDataErrorInfo) *without accessing data source? The point is to get the error message which is going to be displayed. Thank you in advance.

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• Constructing an if statement from the client data in python

  - by Vishal

  Hi, I need to construct an if statement from the data coming from the client as below: conditions: condition1, condition2, condition3, condition4 logical operators: lo1, lo2, lo3 (Possible values: "and" "or") Eg. if condition1 lo1 condition2 lo3 condition4: # Do something I can think of eval/exec but not sure how safe they are! Any better approach or alternative? Appreciate your responses :) PS: Client-side: Flex, Server-side: Python, over internet Thanks

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• Reasons to store users' data in LDAP instead of RDBMS

  - by Ancymon

  It is often said that using LDAP is a good way to store data about users. That's beacause users' "directory" is hierarchical and it changes rarely. But in my opinion that doesn't exclude using RDBMS. What might be reasons to use LDAP? I guess that storing multi-valued fields or adding custom fields in LDAP might be easier but it can be done in database too (unless you have many records)

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• How to get data source for Spring Security Web in Java code

  - by user1443689

  I'm creating a ZK Web application which uses Spring Security for authentication and I'm trying to implement a create user function, where the administrator supplies the details and the user account is created. I've got to the part where I want to put this data into the database, but now I'm thinking I shouldn't hard code the connection to the database, there must be a way to get the connection details from the Spring Security configuration. Is there? If so how?

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• Saving data to a text file and loading it into a datagrid in C#

  - by Kasun

  I need to Pass some data to a text file and save that text file in a SQL Server 2005 database. Then I'll need to be able to load that textfile into a C# WinForms DataGrid. How do I do that in C#?

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• 50 million+ Rows of Data - CSV or MySQL

  - by eWizardII

  Hello, I have a CSV file which is about 1GB big and contains about 50million rows of data, I am wondering is it better to keep it as a CSV file or store it as some form of a database. I don't know a great deal about MySQL to argue for why I should use it or another database framework over just keeping it as a CSV file. I am basically doing a Breadth-First Search with this dataset, so once I get the initial "seed" set the 50million I use this as the first values in my queue. Thanks,

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• save data when back button is tapped

  - by iamthewit

  Hi Al, I have a simple navigation based app which has a bunch fo forms in it, I have a method connected to a button that saves data when the button is tapped but I was wondering if I could call the same method when the back button is tapped in the navigation? Just incase a user fails to use the save button. If it is possible, how would I go about it? thanks in advance!

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• Extracting data from Wikipedia JSON or XML with PHP

  - by user343223

  I want to use PHP (possibly with Curl/XPath?) to extract data from Wikipedia pages. What would be the best way to go about this? I'll be using CakePHP for this project, although just need to figure out how to get this working first.

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• Returning modified data to a template

  - by Duncan

  I need to amend QuerySet data when i return it to a template. for example, model.objects.all() returns a date (with other fields), but i also want to return the number of days since that date has passed. This is so that in the template, i can say "you last logged in 4 days ago". What is the best way to do this?

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• converting 6 bytes hex string to 8 byte raw data

  - by ron

  How can i convert a hex string lenght 6 bytes for example string ='1122aaccddff'; to raw binary data of lenght 8 byes the last 2 bytes shoul be padded with zeros,

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• C++ priority queue structure userd ?

  - by John Retallack

  While searching for some functions in C++ STL documentation I read that push and pop for priority queues needs constant time. "Constant (in the priority_queue). Although notice that push_heap operates in logarithmic time." My question is what kind of data structure is used to mantain a priority queue with O(1) for push and pop ?

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• Import CSV file data into Postgres table

  - by vardhan

  Hi , Iam new to postgres, i want to write an stored procedure that imports data from a csv file and populates the table . Kindly help.

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• HTML Forms - Are name and id required?

  - by Jeremy Rudd

  Why do I need the name and id attributes for <input> form elements? Which is used for POST data sending and which can I exclude?

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• Generate table schema inspecting Excel(CSV) and import data

  - by Frank Malina

  How would I go around creating a MYSQL table schema inspecting an Excel(or CSV) file. Are there any ready Python libraries for the task? Column headers would be sanitized to column names. Datatype would be estimated based on the contents of the spreadsheet column. When done, data would be loaded to the table. I have an Excel file of ~200 columns that I want to start normalizing.

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• Meshing of Point Clouds from a 3Dlaser scanner

  - by iceman

  Is there any package/software which can do Meshing of Point Clouds in real time? What is the data structure used to represent 3D Point Clouds ?

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• Inserting and updating data in Excel

  - by user303907

  Hello, So far all the Excel stuff revolves around opening a file, writing values to it and saving it. Is there a way to update the data in the Excel (while it's opened) automatically? Thanks!

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• modal forms and shared data,

  - by Tumble

  I've written a couple of c# forms applications which use a lot of the same data/objects which would better be combined. I realise I could use modal forms to launch each of these but where should I state .dll's and other resources, on the parent form? or on each other form where necessary?

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• fetch xml data from a url in Blackberry SDK 4.5

  - by Saurabh

  Hi How can i fetch xml data in blackberry SDK 4.5. Any help would be much appreciated! Thanks

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• copy a table with data to another db in sql server 2005 express

  - by Luca Romagnoli

  hi, i've a db with a table. i want copy it with the data in another db. How can i do it in sql server 2005 express? thanks

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• HTML Canvas and saving the data on the server

  - by snitko

  Say I've written a simple app that draws circles in browser. Now I'd like to let people save their pictures. How would I store the data on the server? Which format would be the best option? Should I simply store the relevant html? What would be the case when I would want to make a custom format that is stored on the server and parsed back to html canvas when loaded?

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• How do Hex editors display data so quickly?

  - by user146780

  I'v created a Notepad-like application and if I load a 1MB file into the textbox, it takes about 1 minute. The Visual Studio Binary editor displays lines, Hex, and ascii versions in a fraction of a second. How do they get the data into the textbox so quickly? Thanks

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• need a library to get performance counters data under Win CE, c++ code

  - by Oleg Ivanov

  Under WindowsCE, C++ project, I'd like to get CPU utilization and memory allocation data real time - for logging and troubleshooting. Is there a library or activeX available that i could include in my code and use [without bringing my process to a halt, preferably], anyone knows? thanks much for any insight! O.

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• ListPlot With Two Data Sets in Mathematica

  - by Scott

  Is there a cleaner way to do the following, assuming that I have a reason to keep the data sets independent?: x = {1, 2, 3}; y = {1, 4, 9}; ListPlot[Partition[Riffle[x, y], 2]] Thanks!

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• display data after every 10 seconds in Android

  - by Farha Ansari

  Hi, I have to display some data after evry 10 seconds. Can anyone tell me how to do that? Thanks

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• ASP.NET: How to pass data to a custom error page

  - by Ronnie Overby

  How can I pass some data from a Global.asax event handler to a custom error page in ASP.NET without using Server.Transfer or some redirect?

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