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mongodb group values by multiple fields
...urse the ability to interpolate the variable through $expr using $match to select the matching items in the "join", but the general premise is a "pipeline within a pipeline" where the inner content can be filtered by matches from the parent. Since they are both "pipelines" themselves we can $limit e...
android.widget.Switch - on/off event listener?
...bout you but I wish they named it OnCheckChangedListener, similar to OnItemSelectedListener, since On-Noun-Verb-Listener is an established naming convetion.
– Sam
Jul 1 '12 at 0:10
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Android - Emulator in landscape mode, screen does not rotate
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In my case the Skin option in AVD settings was the problem. When I selected "No skin", it worked.
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Chrome developer tools: View Console and Sources views in separate views/vertically tiled?
...Open the three-dot menu in the upper right corner of the dev tools window.
Select 'Settings'.
"General" tab --> "Appearance" section
"Panel Layout"
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Get Character value from KeyCode in JavaScript… then trim
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"LEFT", // [37]
"UP", // [38]
"RIGHT", // [39]
"DOWN", // [40]
"SELECT", // [41]
"PRINT", // [42]
"EXECUTE", // [43]
"PRINTSCREEN", // [44]
"INSERT", // [45]
"DELETE", // [46]
"", // [47]
"0", // [48]
"1", // [49]
"2", // [50]
"3", // [51]
"4", // [52]
"5", // [53]...
Why do we have to specify FromBody and FromUri?
...When a parameter has [FromBody], Web API uses the Content-Type header
to select a formatter. In this example, the content type is
"application/json" and the request body is a raw JSON string (not a
JSON object). At most one parameter is allowed to read from the
message body.
This shoul...
The entity type is not part of the model for the current context
...the Solution Explorer
Right click on the table head you want to remove and select "Delete from Model"
Now again right click on the work area and select "Update Model from Database.."
Add the table again from the table list
Clean and build the solution
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Getting the value of an attribute in XML
...t like this, assuming the context is the parent element:
<xsl:value-of select="name/@attribute1" />
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Eclipse: Java, see where class is used
Is there a way in Eclipse to select a Java class, and then bring up a list of all Java files where that class is used within a project?
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Why does ReSharper want to use 'var' for everything?
...Dictionary<int,bool>>>> q = from t in d where t.Key == null select t; // OMG!
//vs.
var q = from t in d where t.Key == null select t;
// I simply want the first string, so the last version seems fine.
q.First().Key;
You must use var when there's an anonymous ty...