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How to select a radio button by default? [duplicate]
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XHTML solution:
<input type="radio" name="imgsel" value="" checked="checked" />
Please note, that the actual value of checked attribute does not actually matter; it's just a convention to assign "checked". Most importantly, strings like "true" or "false" don't have any special meani...
No IUserTokenProvider is registered
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You have to specify a UserTokenProvider to generate a token.
using Microsoft.Owin.Security.DataProtection;
using Microsoft.AspNet.Identity.Owin;
// ...
var provider = new DpapiDataProtectionProvider("SampleAppName");
var userManager = new UserManager...
What is the best way to paginate results in SQL Server
...l number of results and paginating are two different operations. For the sake of this example, let's assume that the query you're dealing with is
SELECT * FROM Orders WHERE OrderDate >= '1980-01-01' ORDER BY OrderDate
In this case, you would determine the total number of results using:
SELECT...
Checking if a variable is defined?
How can I check whether a variable is defined in Ruby? Is there an isset -type method available?
14 Answers
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How can I pass command-line arguments to a Perl program?
I'm working on a Perl script. How can I pass command line parameters to it?
9 Answers
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How do I create a comma-separated list from an array in PHP?
I know how to loop through items of an array using foreach and append a comma, but it's always a pain having to take off the final comma. Is there an easy PHP way of doing it?
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How to set OnClickListener on a RadioButton in Android?
I have two RadioButton s inside a RadioGroup . I want to set OnClickListener on those RadioButton s. Depending on which RadioButton is clicked, I want to change the text of an EditText . How can I achieve this?
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No generic implementation of OrderedDictionary?
...e right. There's no generic equivalent of OrderedDictionary in the framework itself.
(That's still the case for .NET 4 too, as far as I'm aware.)
But you can vote for it at Visual Studio's UserVoice (2016-10-04)!
share
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NSString property: copy or retain?
...is declared retain or copy — it will be @"Debajit" if the property is marked retain, but @"Chris" if the property is marked copy.
Since in almost all cases you want to prevent mutating an object's attributes behind its back, you should mark the properties representing them copy. (And if you writ...
What is the difference between a map and a dictionary?
I know a map is a data structure that maps keys to values. Isn't a dictionary the same? What is the difference between a map and a dictionary 1 ?
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