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How to get progress from XMLHttpRequest
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For the bytes uploaded it is quite easy. Just monitor the xhr.upload.onprogress event. The browser knows the size of the files it has to upload and the size of the uploaded data, so it can provide the progress info.
For the ...
How to Vertical align elements in a div?
... great web tool which helps to find the necessary CSS centering attributes for different situations.
In a nutshell (and to prevent link rot):
Inline elements (and only inline elements) can be vertically aligned in their context via vertical-align: middle. However, the “context” isn’t the ...
How to pass data from 2nd activity to 1st activity when pressed back? - android
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Start Activity2 with startActivityForResult and use setResult method for sending data back from Activity2 to Activity1. In Activity1 you will need to override onActivityResult for updating TextView with EditText data from Activity2.
For example:
In Activity...
What is the purpose of flush() in Java streams?
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From the docs of the flush method:
Flushes the output stream and forces any buffered output bytes to be written out. The general contract of flush is that calling it is an indication that, if any bytes previously written have been buffered by the implementation of the output stream, such b...
Attaching click event to a JQuery object not yet added to the DOM [duplicate]
...een having a lot of trouble attaching the click event to a JQuery object before adding it to the DOM.
10 Answers
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Set cellpadding and cellspacing in CSS?
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Basics
For controlling "cellpadding" in CSS, you can simply use padding on table cells. E.g. for 10px of "cellpadding":
td {
padding: 10px;
}
For "cellspacing", you can apply the border-spacing CSS property to your table. E.g....
Stop form refreshing page on submit
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You can prevent the form from submitting with
$("#prospects_form").submit(function(e) {
e.preventDefault();
});
Of course, in the function, you can check for empty fields, and if anything doesn't look right, e.preventDefault() will stop t...
How to get the ActionBar height?
...t I found in support documentation. It's a little awkward but it's worked for me. You'll need a context, this example would be valid in an Activity.
// Calculate ActionBar height
TypedValue tv = new TypedValue();
if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true))
{
Int a...
Select all columns except one in MySQL?
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Actually there is a way, you need to have permissions of course for doing this ...
SET @sql = CONCAT('SELECT ', (SELECT REPLACE(GROUP_CONCAT(COLUMN_NAME), '<columns_to_omit>,', '') FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '<table>' AND TABLE_SCHEMA = '<database&g...
Why “no projects found to import”?
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Eclipse is looking for eclipse projects, meaning its is searching for eclipse-specific files in the root directory, namely .project and .classpath. You either gave Eclipse the wrong directory (if you are importing a eclipse project) or you actu...