大约有 47,000 项符合查询结果（耗时：0.0836秒） [XML]
mysql - how many columns is too many?
...every column to be returned by every query is perfectly normal; that's why SELECT statement lets you explicitly name the columns you need.
As a general rule, your table structure should reflect your domain model; if you really do have 70 (100, what have you) attributes that belong to the same entit...
ReSharper - force curly braces around single line
...f-else" statement" to "Use braces for multiline"
After saving the changes, select a scope to reformat (could be a code selection, file, folder, project, solution - anything you want).
Choose ReSharper > Tools > Cleanup Code.
Profit.
Remember that Code Cleanup does numerous things and they're...
Similar to jQuery .closest() but traversing descendants?
...
These examples all select depth-first descendants, not breadth-first, so these can't be used to solve the original question. In my testing they all returned the first span, not the second.
– JrBaconCheez
M...
Find a Pull Request on Github where a commit was originally created
...can just go to github and enter the SHA into the search bar, make sure you select the "Issues" link on the left.
UPDATED 13 July 2017
Via the Github UI there is a now a really easy way to do this. If you are looking at a commit in the list of commits in a branch in the UI, click on the link to the...
Pretty printing XML with javascript
...tch="node()|@*">
<xsl:copy>
<xsl:apply-templates select="node()|@*"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
When applying this transformation on the provided XML document:
<root><node/></root>
most XSLT processo...
How to fix “Referenced assembly does not have a strong name” error?
...at does not "have a strong name key", do
Right click on the project file
Select Properties
Select "Signing tab" (on the left)
Click the check box "Sign the assembly"
Then <Browse> to the .snk file you found earlier
That should do the trick. This solved a problem for me for one project usin...
Android: allow portrait and landscape for tablets, but force portrait on phone?
...h their bools.xml files.
values-sw600dp
First of all, from the Project tab select the Project (rather than Android) filter in the navigator.
Then right click the app/src/main/res directory. Choose New > Android Resource Directory.
Select Smallest Screen Width, and then press the >> button....
What does the “~” (tilde/squiggle/twiddle) CSS selector mean?
...
The ~ selector is in fact the General sibling combinator (renamed to Subsequent-sibling combinator in selectors Level 4):
The general sibling combinator is made of the "tilde" (U+007E, ~)
character that separates two sequence...
What is a NullReferenceException, and how do I fix it?
... to find out where the reference is or isn't set, right-click its name and select "Find All References". You can then place a breakpoint at every found location and run your program with the debugger attached. Every time the debugger breaks on such a breakpoint, you need to determine whether you exp...
Java switch statement: Constant expression required, but it IS constant
...ice.Choice1;
switch(ch) {
case Choice1:
System.out.println("Choice1 selected");
break;
case Choice2:
System.out.println("Choice2 selected");
break;
case Choice3:
System.out.println("Choice3 selected");
break;
}
}
}
Source:
Switch statement with enum
...