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Cross-thread operation not valid: Control accessed from a thread other than the thread it was create
I have a scenario. (Windows Forms, C#, .NET)
22 Answers
22
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Compile time string hashing
... 5381;
}
This does seem to follow the basic rules in §7.1.5/3:
The form is: "return expression;"
Its only parameter is a pointer, which is a scalar type, and therefore a literal type.
Its return is unsigned int, which is also scalar (and therefore literal).
There is no implicit conversion to...
How do I filter ForeignKey choices in a Django ModelForm?
...
ForeignKey is represented by django.forms.ModelChoiceField, which is a ChoiceField whose choices are a model QuerySet. See the reference for ModelChoiceField.
So, provide a QuerySet to the field's queryset attribute. Depends on how your form is built. If yo...
How to send an email from JavaScript
... request to send an email. It's called PostMail, and you can simply post a form, use Javascript or jQuery. When you sign up, it provides you with code that you can copy & paste into your website. Here are some examples:
Javascript:
<form id="javascript_form">
<input type="text" na...
Binary Data in MySQL [closed]
...emonstrate the storing of binary files into
// an sql database. More information can be found at http://www.phpbuilder.com/
?>
<html>
<head><title>Store binary data into SQL Database</title></head>
<body>
<?php
// Code that ...
Are the PUT, DELETE, HEAD, etc methods available in most web browsers?
...
No. The HTML 5 spec mentions:
The method and formmethod content attributes are enumerated attributes
with the following keywords and states:
The keyword get, mapping to the state GET, indicating the HTTP GET
method. The GET method should only request and retrie...
Short form for Java if statement
I know there is a way for writing a Java if statement in short form.
15 Answers
15
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How to trigger an event after using event.preventDefault()
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A more recent version of the accepted answer.
Brief version:
$('#form').on('submit', function(e, options) {
options = options || {};
if ( !options.lots_of_stuff_done ) {
e.preventDefault();
$.ajax({
/* do lots of stuff */
}).then(function() {
...
Session timeout in ASP.NET
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Are you using Forms authentication?
Forms authentication uses it own value for timeout (30 min. by default). A forms authentication timeout will send the user to the login page with the session still active. This may look like the behavio...
How to manage a redirect request after a jQuery Ajax call
...ect to decide what it needs to do.
I had a similar problem to yours. I perform an AJAX request that has 2 possible responses: one that redirects the browser to a new page and one that replaces an existing HTML form on the current page with a new one. The jQuery code to do this looks something like:...