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Adding placeholder text to textbox

... 24 Answers 24 Active ...
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An expression tree may not contain a call or invocation that uses optional arguments

Where edit had a second, nullable argument. 2 Answers 2 ...
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INotifyPropertyChanged vs. DependencyProperty in ViewModel

...the ViewModel in a Model-View-ViewModel architecture WPF application there seem to be two major choices how to make it databindable. I have seen implementations that use DependencyProperty for properties the View is going to bind against and I have seen the ViewModel implementing INotifyPropertyC...
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Difference between 'new operator' and 'operator new'?

What is difference between "new operator" and "operator new"? 8 Answers 8 ...
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Determine if code is running as part of a unit test

I have a unit test (nUnit). Many layers down the call stack a method will fail if it is running via a unit test. 19 Answers...
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JavaScript: How to pass object by value?

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Bootstrap Element 100% Width

I want to create alternating 100% colored blocks. An "ideal" situation is illustrated as an attachment, as well as the current situation. ...
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How can I mock requests and the response?

I am trying to use Pythons mock package to mock Pythons requests module. What are the basic calls to get me working in below scenario? ...
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Why are global variables evil? [closed]

I'm trying to find out why the use of global is considered to be bad practice in python (and in programming in general). Can somebody explain? Links with more info would also be appreciated. ...
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How can I use UUIDs in SQLAlchemy?

Is there a way to define a column (primary key) as a UUID in SQLAlchemy if using PostgreSQL (Postgres)? 9 Answers ...