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Sequence contains more than one element
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-1 "The problem is you are using SingleOrDefault" - from what I can gather the OP is looking for a customer id which (I assume) should be unique, therefore, SingleOrDefault is actually more appropriate than FirstOrDefault. Also, this has actually raised a more serious problem ...
Calc of max, or max of calc in CSS
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No you cannot. max() and min() have been dropped from CSS3 Values and Units. They may be re-introduced in CSS4 Values and Units however. There is currently no spec for them, and the calc() spec does not mention that either are valid inside a calc() function.
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Permanently add a directory to PYTHONPATH?
...new directory to the environment variable PYTHONPATH, separated by a colon from previous contents thereof. In any form of Unix, you can do that in a startup script appropriate to whatever shell you're using (.profile or whatever, depending on your favorite shell) with a command which, again, depend...
what is the preferred way to mutate a React state?
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Calling this.setState with a value derived from this.state will have you fall foul of update batching issues. See stackoverflow.com/a/41445812/1998186 which links to a jsfiddle showing the problem you'll get.
– NealeU
Jan 3 '17 ...
Best way to encode text data for XML in Java?
.... If you do want to escape yourself, you could look into StringEscapeUtils from the Apache Commons Lang library.
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Hibernate: “Field 'id' doesn't have a default value”
...te is set up to automatically create/manage the DB schema. To drop tables from a managed schema, SET foreign_key_checks = 0; is your friend. Just be sure to SET foreign_key_checks = 1; when you're done.
– aroth
Aug 27 '12 at 5:00
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Mockito: Trying to spy on method is calling the original method
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My case was different from the accepted answer. I was trying to mock a package-private method for an instance that did not live in that package
package common;
public class Animal {
void packageProtected();
}
package instances;
class Dog ex...
How do you suppress output in IPython Notebook?
...'t for a code inside a for loop. Any ideas? I only want to suppress output from particular lines of code in the cell, not all lines. Thanks
– Confounded
Nov 15 '19 at 11:15
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Fatal error: “No Target Architecture” in Visual Studio
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Use #include <windows.h> instead of #include <windef.h>.
From the windows.h wikipedia page:
There are a number of child header files that are automatically included with windows.h. Many of these files cannot simply be included by themselves (they are not self-contained), becaus...
jquery disable form submit on enter
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This prevents the enter key from being used in textareas within the same form. Using $("form input") instead of $("form :input") seems to fix it. DEMO: jsfiddle.net/bnx96/279
– shaneparsons
Apr 27 '15 at 17:43
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