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How to empty a list in C#?

... Since this is a top hit in google and I run into this problem, I'm necro commenting this. If you use the same list in a loop and use clear, the list will often keep reference to old objects - I often end up using = new LisT<T>(); due to the fact that it...
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Java 8: Lambda-Streams, Filter by Method with Exception

... propagate here receives java.util.concurrent.Callable as a parameter and converts any exception caught during the call into RuntimeException. There is a similar conversion method Throwables#propagate(Throwable) in Guava. This method seems being essential for lambda method chaining, so I hope one ...
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Creating a UIImage from a UIColor to use as a background image for UIButton [duplicate]

...egory around UIButton to be able to set the background color of the button and set the state. You might find this useful. @implementation UIButton (ButtonMagic) - (void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state { [self setBackgroundImage:[UIButton imageFromC...
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git diff two files on same branch, same commit

... read the answer closely. the command is diff fileA fileB not git diff fileA fileB – Matthew Hinea May 26 '17 at 21:49 ...
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Hibernate vs JPA vs JDO - pros and cons of each? [closed]

...m heavy database/SQL/stored procedure/JDBC school myself. I can't say I am convert - every technology above still has a place to be. But for general purpose Java 3-tier application (no matter what size) first choice is an ORM technology - preferably JPA 2. Others are to be considered based on such f...
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Select the values of one property on all objects of an array in PowerShell

...output by Get-ChildItem) or [pscustomobject] instances (e.g., as output by Convert-FromCsv). The reason is that [pscustomobject] properties are dynamically managed by PowerShell, and it can access them more quickly than the regular properties of a (statically defined) regular .NET type. Both scenari...
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How to use getJSON, sending data with post method?

... The $.getJSON() method does an HTTP GET and not POST. You need to use $.post() $.post(url, dataToBeSent, function(data, textStatus) { //data contains the JSON object //textStatus contains the status: success, error, etc }, "json"); In that call, dataToBeSen...
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Can Objective-C switch on NSString?

... Unfortunately they cannot. This is one of the best and most sought after utilizations of switch statements, so hopefully they hop on the (now) Java (and others) bandwagon! If you are doing card names, perhaps assign each card object an integer value and switch on that. Or pe...
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C# SQL Server - Passing a list to a stored procedure

... con = new SqlConnection(connstring)) { con.Open(); using (SqlCommand cmd = new SqlCommand("exec sp_UseStringList @list", con)) { using (var table = new DataTable()) { table.Columns.Add("Item", typeof(string)); for (int i = 0; i < 10; i++) tab...
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How to stop an animation (cancel() does not work)

...mation stop, it must remain in current position, i.e. I have sliding image and on touch event it must freeze on this place. clearAnimation() is not a case, because it resets state to start/end position depending on setFillAfter() – Mix Nov 6 '10 at 9:56 ...