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How to set Default Controller in asp.net MVC 4 & MVC 5
How do I set Default Controller for my ASP.NET MVC 4 project without making it HomeController ?
4 Answers
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The object 'DF__*' is dependent on column '*' - Changing int to double
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Try this:
Remove the constraint DF_Movies_Rating__48CFD27E before changing your field type.
The constraint is typically created automatically by the DBMS (SQL Server).
To see the constraint associated with the table, expand the table attributes in Object explorer, followed by the cat...
How to prevent buttons from submitting forms
In the following page, with Firefox the remove button submits the form, but the add button does not.
17 Answers
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how to override action bar back button in android?
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This worked for me after I changed return true; to return super.onOptionsItemSelected(item). Then you can make something happen when the user clicks the actionbar back button, but still retain the same functionality of the button.
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Show and hide a View with a slide up/down animation
...w down by its height and fade it in at the same time:
// Prepare the View for the animation
view.setVisibility(View.VISIBLE);
view.setAlpha(0.0f);
// Start the animation
view.animate()
.translationY(view.getHeight())
.alpha(1.0f)
.setListener(null);
You can then fade the View back ou...
How can I create and style a div using JavaScript?
...ry is easier, it's mostly just shorter. But, instead of using setAttribute for the class, I would use div.className = 'myclass';
– Daan Wilmer
Jul 27 '11 at 7:59
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Can someone explain collection_select to me in clear, simple terms?
I am going through the Rails API docs for collection_select and they are god-awful.
2 Answers
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Should I put input elements inside a label element?
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From w3:
The label itself may be positioned before, after or around the
associated control.
<label for="lastname">Last Name</label>
<input type="text" id="lastname" />
or
<input type="text" id="lastname" />
<label for="lastname"...
On Duplicate Key Update same as insert
...e the same as your new ones, why would you need to update it in any case?
For eg. if your columns a to g are already set as 2 to 8; there would be no need to re-update it.
Alternatively, you can use:
INSERT INTO table (id,a,b,c,d,e,f,g)
VALUES (1,2,3,4,5,6,7,8)
ON DUPLICATE KEY
UPDATE a=a, b...
Check Whether a User Exists
...to check if the user exists, use if with id directly, as if already checks for the exit code. There's no need to fiddle with strings, [, $? or $():
if id "$1" &>/dev/null; then
echo 'user found'
else
echo 'user not found'
fi
(no need to use -u as you're discarding the output anyway)
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