Django's form library has a feature of form sets that allow you to process dynamically added forms. For example you would use form sets if your application has a list of bookmarks you could use form sets to process multiple forms that each represent a bookmark.
What about if you want to dynamically add a field to a form? An example would be a survey creation page where you can dynamically add an unlimited number of questions. How do you handle this in Django?
I'm trying to use spring scheduled tasks for my scheduled jobs, I have one scheduler configured for multiple tasks executors as below
<task:scheduled-tasks scheduler="ABCTaskScheduler">
<task:scheduled ref="ABCTaskExecutor" method="execute"
cron="some_expression_1" />
<task:scheduled ref="DEFTaskExecutor" method="execute"
cron="some_expression_1" />
</task:scheduled-tasks>
My question in how can I make the task executor list dynamic, so that I do not have to change my spring config each time I have to add a new task executor.
I have a requirement in which the view contains one native UITextField and one UIWebView. The issue is if I switch the focus from UITextView to UIWebView, the keyboard window flicker(hides and then shows).
ie, I got UIKeyboardWillHideNotification and UIKeyboardDidShowNotification
But, this is not happening when I switch the other way. ies, I got only UIKeyboardDidShowNotification
Is there any way to avoid this flickering effect?
Note: I also notices if I have multiple UITextField and UIWebView, this issue is not happening with the same type of views.
Im working on a web site that has to be reachable from many countries under the same domain.
Id like to know how can I receive a request with nginx (or any other static file server), and send it to different web servers depending on IP's location.
I mean, what is the point on having multiple db machines on country A and B, if the server that serves you the page is chosen by round robin.
Maybe theres another solution to my problem, and I would be very happy if someone can explain it to me.
If I have two multiple threads accessing a HashMap, but guarantee that they'll never be accessing the same key at the same time, could that still lead to a race condition?
Hi All,
I've created a Resource Dictionary that I want to merge with multiple usercontrol xaml files. I want only one instance of this Resource Dictionary to be created. Any idea how to do this?
Note: Merge should happen through xaml only and not through code.
Thanks & Regards,
Vishal
Hi!
I have multiple text fields on form and i want two of them should validate like If one of them is empty then say "Both fields are required". Additionally I have also other text fields on form and they are already validating on button click.
Can it be handled using Asp.Net CustomValidator ?
I'm trying to build a sort of resource allocation form. I'd like to be able to print a table from a database, and then allow users to click on each cell that they would like to reserve. Also, being able to drag and select multiple cells. Then send all of this via $_POST to another php script.
Problem is, I have no idea where to start.
Any suggestions?
I've never really used PowerShell before, and playing with it a bit, it looks like it uses cmd.exe's style of tab completion (fill in the first likely candidate, and then you can use tab to cycle through other alternatives). I'd much prefer the way e.g. bash works, where if there are multiple candidates, it shows a list of them.
Is there an easy way to turn this on, by any chance?
I'm obviously brand new to these concepts. I just don't understand why you would limit access to properties or methods. It seems that you would just write the code according to intended results. Why would you create a private method instead of simply not calling that method? Is it for iterative object creation (if I'm stating that correctly), a multiple developer situation (don't mess up other people's work), or just so you don't mess up your own work accidentally?
which database should I use, if my application is going to be in multiple languages (including Chinese, Japanese etc)? In other words, is MySQL better or worse than Postgres to handle unicode etc? (these are the only two databases my hosting company has)
Also, which language is better for handling unicode? PHP or Ruby/Rails?
so
1GvG:s/..../g
can replace over an entire buffer
However, suppose I have multiple vim buffers loaded, and I want to do a :s over all the buffers that are writable; is there a way to do this in vim?
I know about C++ pure virtual classes, but Java went one step further and created a first-class (no pun intended) concept for multiple-interface (not implementation) inheritance, the interface. It's now a staple of major statically-typed languages. Did Java invent the interface concept? Or did it appear in older languages also as a first-class concept?
I like Qt Creator as an IDE, but the built-in compiler is slower than dirt.
Can I replace it, and if so, with what?
Developing on Windows but targeting multiple Mac as well.
Is there any way of creating a combo box (<select>) with a size of 1? All the examples I can find allow for multiple selects but with a number of options visible at any one time. If this cannot be accomplished with bog standard HTML is it possible in a JS library such as JQuery?
Hey,Guys!
In rails , I met a question!
when i use the multiple select ,i don't know ,how can i get the all parameter values ,it likes
in javaEE,
String[] strs=request.getParameters("aaa");
so,who can tell me the method in rails to realize the function?
Thank you in advance!
I have a rails controller file that is too large (~900 lines - api_controller). I'd like to just split it up like something like this:
api_controller.rb
api_controller_item_admin.rb
api_controller_web.rb
I don't want to split into multiple controllers. What would be the preferred way to do this? Could I just require the new parts at the end? like:
require './api_controller_item_admin'
require './api_controller_web'
Hi,
I have MOSS 2007 environment with multiple WFE servers. can any one know what is difference between "Office SharePoint Server Search" and "Windows SharePoint Services Search ".
Which service i have to start ? If i have to Start "Office SharePoint Server Search" then what is the meaning of giving "Windows SharePoint Services Search " in Central Administration.
---Keshaw
I use the jquery plugin "uploadify" to upload multiple files to My App(GAE), and then save them with blobstore, but it failed. I debug the code into get_uploads, it seems field.type_options is empty and of course has 'blob-key'.
Q: where does the key 'blob-key' come from?
thank you!
Consider the following Generic class:
public class Custom<T> where T : string
{
}
This produces the following error:
'string' is not a valid constraint. A type used as a constraint must
be an interface, a non-sealed class or a type parameter.
Is there another way to constrain which types my generic class can use?
Also, can I constrain to multiple types?
E.G.
T can only be string, int or byte
Hi,
I am using multiprocessing module, and using pools to start multiple workers. But the file descriptors which are opened at the parent process are closed in the worker processes. I want them to be open..! Is there any way to pass file descriptors to be shared across parent and children?
I was hoping it was as easy as referencing my existing libraries to use them with WP7.
However, it complains about not able to load them because of .Net CF when I actually use them.
Do i need to recompile them to .NET CF or something?
I thought the big plus of WP7 was: leveraging your existing codebase...?
How can I leverage my existing codebase if I need to strip everything out of it and maintain multiple versions?
I get multiple text files daily to update my database from my client side and i am not a DBA expert. Everyday i do update it manually. Is there any method using which i can ease my task. I think there is a way to automate it but exactly i don't know what to do.