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How does Stackoverflow's “Post Your Question” button stay disabled until question gets submitted?
Category : Programming Languages

I am using asp.net webforms; I want to submit a form and keep the button disabled until it gets saved to my database, exactly like Stackoverflow. Any suggestion?

protected void Lb_Save_Click(object sender, EventArgs e)
//disable my button
//Do a DB insert
//enable my button


I'll do a client-side val

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asp.net mvc nerddinner question linq to entities join question
Category : Programming Languages

I am working on a website similar to nerddinner. Is it possible to perform similar join
using Linq to entities what is done with linq to sql in nerddinner.
I am posting the codes below.

public IQueryable<Dinner> FindByLocation(float latitude, float longitude) {
var dinners = from dinner in FindUpcomingDinners()
join i in db.

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A question on classifying question categories on Yahoo! Answer
Category : Development Tools & Services

now I have a seemingly easy but challenging task.I need to develop a data set of questions,and I classify the questions into two categories:

Factoid questions: "who is the current president of France."
Free questions: "Can you rate the cameras below for me,please?"

now I need to know the percentage of both categories on Yahoo! answer so that I could maintain my data set ac

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MySQL table question. [MULTI PART QUESTION]
Category : Databases

I was wondering if I allowed my users to pick which categories their post will be displayed in and they can pick multiple categories from one to many.

How would I store the categories id value or values in the database?
Should I group each value together for example, 45,12,45,78 or should I store one value at a time?
And how would my table structure look like?
Or sho

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.htaccess question : Can I strip out a leading question mark?
Category : Development Tools & Services

I have a page that already has the $_GET array initialized, and when a page redirects there (with an oAuth token) it appends the ?token=36264747 to the end.

Is there a way to write an .htaccess file for an Apache server that would either strip that question mark or (better) replace it with an ampersand?

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Question about combating contravariance. Callback-related question
Category : Programming Languages

I have the following piece of code which doesn't compile when I try to instance something like CommandGlobal<int> because it tries to override virtual void Execute() const =0; with a function which returns int. It gives a non-covariance error.

class CommandBase
virtual void Execute() const =0;

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Question regarding iPhone core data and how to duplicate features for multiple users…that doesn't make sense, just read my question :)
Category : Programming Languages

So I am working on a simple iPhone app, that uses core data to manage objects. My code is similar in function to Apple's CoreDataBooks app, found here. There is a blank UITableViewCell, and you have the ability to add objects to this blank list. If you hit the add button, a DetailViewController pops up that manages the attribute of each object. In the coredatabooks example, the app is like a li

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ASP.Net MVC requirements vs ASP.Net? (hosting question, plus LINQ-to-SQL question)
Category : Programming Languages

I'm jumping into ASP.Net MVC and wanted to know how tough it's been for hosting providers to support it.

One thing that I'd like to know is how I can port my local MVC app to a hosted provider if I'm using LINQ to SQL. I assume I have to move the dbml files over in some way? What else that's special in contrast to a regular ASP.Net app? (Sorry if this is a complete newbie questio

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I have a string 'Question', how to get an instance of class Question
Category : Programming Languages
class_name = 'Question'
instance = which_method(class_name)

Which method I should use?

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K&R exercise question to an answer about the original question
Category : Programming Languages

I kept trying to wrap my head around a solution to K&R problem 7-8, until I found this solution (with the original problem) right on this site. I am unable to comment on the answer (probably due to its age); the only way I could actually have input in that question is to post an answer to it, which I felt was inappropriate. So i've decided to create this heavily related question based off t

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