大约有 45,000 项符合查询结果（耗时：0.0388秒） [XML]
Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?
...is will throw a NullReferenceException in the second line and you want to know why .NET doesn't tell you that it was s that was null when the exception was thrown.
To understand why you don't get that piece of information you should remember that it is not C# source that executes but rather IL:
I...
Get city name using geolocation
... @ajay in the if statement test for "country" and the city variable will now return country data. If re-name it country = results[0].address_components[i] you can access the data by country.long_name and country.short_name
– Michal
Mar 31 '13 at 0:51
...
Quick easy way to migrate SQLite3 to MySQL? [closed]
Anyone know a quick easy way to migrate a SQLite3 database to MySQL?
17 Answers
17
...
Getting Java version at runtime
...= version.substring(0, dot); }
} return Integer.parseInt(version);
}
Now you can check the version much more comfortably:
if(getVersion() < 6) {
// ...
}
share
|
improve this answer
...
How to get current page URL in MVC 3
... did. When an upvote just came in on this answer I thought I should do it now.
The 'bug' I mention in Asp.Net can be be controlled with an apparently undocumented appSettings value - called 'aspnet:UseHostHeaderForRequest' - i.e:
<appSettings>
<add key="aspnet:UseHostHeaderForRequest" ...
Object comparison in JavaScript [duplicate]
...
if (arguments.length < 1) {
return true; //Die silently? Don't know how to handle such case, please help...
// throw "Need two or more arguments to compare";
}
for (i = 1, l = arguments.length; i < l; i++) {
leftChain = []; //Todo: this can be cached
rightChain = ...
Why can't Python parse this JSON data?
...ta.json') as f:
data = json.load(f)
pprint(data)
With data, you can now also find values like so:
data["maps"][0]["id"]
data["masks"]["id"]
data["om_points"]
Try those out and see if it starts to make sense.
share
...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
...
I know this is an old question, but still unanswered. It took me a day of research, but I found the simplest solution, at least in my case (Oracle 11.2 on Windows 2008 R2) and wanted to share.
The error, if looked at directly,...
What does the Ellipsis object do?
... FYI, the FastAPI framework (which is for python 3.6+) also (now) uses it. fastapi.tiangolo.com/tutorial/query-params-str-validations
– Andrew Allaire
Jul 17 '19 at 18:02
...
How can I search for a multiline pattern in a file?
...
Hmm tried this just now and didn't seem to work... gist.github.com/rdp/0286d91624930bd11d0169d6a6337c33
– rogerdpack
Dec 3 '18 at 17:22
...