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How can I validate a string to only allow alphanumeric characters in it?

...n: ^[a-zA-Z0-9]*$ ie: using System.Text.RegularExpressions; Regex r = new Regex("^[a-zA-Z0-9]*$"); if (r.IsMatch(SomeString)) { ... } share | improve this answer | fo...
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Take the content of a list and append it to another list

... something, either True or False. Mine only emits a single True. I have no idea how those benchmark out, or whether there's enough difference to matter at all. – Kirk Strauser Nov 18 '11 at 3:44 ...
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grunt: command not found when running from terminal

I'm new to Grunt. I'm trying to configure Grunt on my Mac OSX Lion. 6 Answers 6 ...
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How to change current Theme at runtime in Android [duplicate]

... This is very useful. I already knew how to set the theme before loading, but changing it immediately is neccessary for a reasonable user experience. recreate is just the thing I needed. – Kjeld Schmidt Mar 4 '19 at 13:...
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How to create Java gradle project

... To create a Java project: create a new project directory, jump into it and execute gradle init --type java-library Source folders and a Gradle build file (including a wrapper) will be build. ...
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AngularJS - How to use $routeParams in generating the templateUrl?

...templateUrl: '/tasks', controller: 'TasksCtrl'}) .when('/tasks/new', {templateUrl: '/tasks/new', controller: 'NewTaskCtrl'}) .when('/tasks/:id', {templateUrl: '/tasks', controller: 'ViewTaskCtrl'}) .when('/tasks/:id/edit', {templateUrl: '/tasks', controller: 'Edit...
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Database Design for Tagging

...", like digiguru suggests: It sounds like a complicated situation whenever new tags are added(?) But some DBMSes (including Oracle) offer bitmap indexes which may somehow be of use, because a built-in indexing system does away with the potential complexity of index maintenance; additionally, a DBMS ...
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form_for with nested resources

...sources :articles do resources :comments, :only => [:create, :index, :new] end I guess it's ok to have duplicate routes, and to miss a few unit-tests. (Why test? Because even if the user never sees the duplicates, your forms may refer to them, either implicitly or via named routes.) Still, to...
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Android TextView with Clickable Links: how to capture clicks?

... int flags = strBuilder.getSpanFlags(span); ClickableSpan clickable = new ClickableSpan() { public void onClick(View view) { // Do something with span.getURL() to handle the link click... } }; strBuilder.setSpan(clickable, start, end, flags); strBuilder.r...
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How can I divide two integers to get a double?

How do I divide two integers to get a double? 5 Answers 5 ...