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Create a dictionary on a list with grouping
...
into groupedDemoClass
select groupedDemoClass).ToDictionary(gdc => gdc.Key, gdc => gdc.ToList());
This one will work !!!
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Why doesn't Dictionary have AddRange?
...ined =
dict1.Union(dict2)
.GroupBy(kvp => kvp.Key)
.Select(grp => grp.First())
.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
The main trick when combining dictionaries is dealing with the duplicate keys. In the code above it's the part .Select(grp => g...
Average of 3 long integers
... - 1;
long z = long.MaxValue - 2;
long[] arr = { x, y, z };
var avg = arr.Select(i => i / arr.Length).Sum()
+ arr.Select(i => i % arr.Length).Sum() / arr.Length;
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Accessing the index in 'for' loops?
...g enumerate, I switched to this approach to avoid having to write logic to select which object to enumerate.
– adg
Mar 31 '17 at 23:18
1
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How do I use IValidatableObject?
...ustom model binder):
var resultsGroupedByMembers = validationResults
.SelectMany(vr => vr.MemberNames
.Select(mn => new { MemberName = mn ?? "",
Error = vr.ErrorMessage }))
.GroupBy(x => x.MemberName);
foreach (v...
Is there a way to make a PowerShell script work by double clicking a .ps1 file?
...won't show windows folder) i.e. C:\Windows\System32\WindowsPowerShell\v1.0
select powershell.exe
select "Always use this app to open .ps1 files"
click OK
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Why should I avoid std::enable_if in function signatures
...{}
}
Tag dispatching does not manipulate the overload set, but helps you select exactly the function you want by providing the proper arguments through a compile-time expression (e.g. in a type trait). In my experience, this is much easier to debug and get right. If you are an aspiring library wri...
How to do a batch insert in MySQL
...
Insert into table(col1,col2) select col1,col2 from table_2;
Please refer to MySQL documentation on INSERT Statement
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...
Function of Project > Clean in Eclipse
...the navigator view right click on your project (or appropriate folder) and select Refresh from the context menu. This will remove any files that have been deleted and add any new ones that are not yet listed in your project.
– SteveS
May 4 '12 at 12:34
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Check if a dialog is displayed with Espresso
... correct button in the dialog.
UiObject button = uiDevice.findObject(new UiSelector().text("ButtonText"));
if (button.exists() && button.isEnabled()) {
button.click();
}
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