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Changing the cursor in WPF sometimes works, sometimes doesn't

...deCursor: Mouse.OverrideCursor = Cursors.Wait; try { // do stuff } finally { Mouse.OverrideCursor = null; } This overrides the cursor for your application rather than just for a part of its UI, so the problem you're describing goes away. ...
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How to use the IEqualityComparer

I have some bells in my database with the same number. I want to get all of them without duplication. I created a compare class to do this work, but the execution of the function causes a big delay from the function without distinct, from 0.6 sec to 3.2 sec! ...
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_=> what does this underscore mean in Lambda expressions?

...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
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How can I have a newline in a string in sh?

...rom the Bash manual page: Words of the form $'string' are treated specially. The word expands to string, with backslash-escaped characters replaced as specified by the ANSI C standard. Backslash escape sequences, if present, are decoded as follows: \a alert (bell) ...
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Add params to given URL in Python

... @florian : At least in python 2.7 you then need to call urlencode as urllib.urlencode(query, doseq=True). Otherwise, parameters that existed in the original url are not preserved correctly (because they are returned as tuples from @parse_qs@ – rluba ...
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Dynamic cell width of UICollectionView depending on label width

... You cannot imagine how I thank you! That really works. Now I only need to resolve [cell.myLabel sizeToFit] problem, because it appears in its full size only after scrolling. But I have not been even close to your solution. – pulp ...
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Java Error opening registry key

...er removing the "java" executables from my system32 folder, I had to reinstall the JRE. After that, my problem was solved. Thanks for the starting point. – dangowans Dec 24 '13 at 18:31 ...
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How to ALTER multiple columns at once in SQL Server

.... Each statement means a new scan but if you could alter multiple columns, all altering could have been much quicker – erikkallen Sep 8 '16 at 6:31 ...
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In Python, what is the difference between “.append()” and “+= []”?

... In general case append will add one item to the list, while += will copy all elements of right-hand-side list into the left-hand-side list. Update: perf analysis Comparing bytecodes we can assume that append version wastes cycles in LOAD_ATTR + CALL_FUNCTION, and += version -- in BUILD_LIST. App...
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Where to find Java JDK Source Code? [closed]

...ethod in the Java API does. So I want the JDK Source Code. Before I re-installed Linux I had the src.zip package with all the official source code in it. I just had to tell Eclipse where this file is and I could see the code. But now I don't have the file anymore... ...