大约有 30,000 项符合查询结果（耗时：0.0297秒） [XML]
Get the new record primary key ID from MySQL insert query?
... insert a row:
CREATE FUNCTION `getAutoincrementalNextVal`(`TableName` VARCHAR(50))
RETURNS BIGINT
LANGUAGE SQL
NOT DETERMINISTIC
CONTAINS SQL
SQL SECURITY DEFINER
COMMENT ''
BEGIN
DECLARE Value BIGINT;
SELECT
AUTO_INCREMENT INTO Value
FROM
info...
ASP.NET Identity DbContext confusion
...', 'IdentityRole', ...
public class ApplicationRole : IdentityRole<string, ApplicationUserRole>
{
public ApplicationRole()
{
this.Id = Guid.NewGuid().ToString();
}
public ApplicationRole(string name)
: this()
{
this.Name = name;
}
// ...
Proper way to declare custom exceptions in modern Python?
...er standard other exception classes have, so that (for instance) any extra string I include in the exception is printed out by whatever tool caught the exception.
...
How to get error message when ifstream open fails
How to get error message as string?
4 Answers
4
...
What's the difference between the various methods to get a Context?
...e:
public class MyApplication extends Application {
public static String getPackageName() {
String packageName = null;
try {
PackageInfo mPackageInfo = getApplicationContext().getPackageManager().getPackageInfo(getApplicationContext().getPackageName(), 0);
...
Create Generic method constraining T to an Enum
... better implementation should be something like this:
public T GetEnumFromString<T>(string value) where T : struct, IConvertible
{
if (!typeof(T).IsEnum)
{
throw new ArgumentException("T must be an enumerated type");
}
//...
}
This will still permit passing of value type...
Base64 encoding and decoding in client-side Javascript
... there any methods in JavaScript that could be used to encode and decode a string using base64 encoding?
13 Answers
...
How to correctly close a feature branch in Mercurial?
...branch)
Another way is to close a feature branch before merging using an extra commit:
$ hg up feature-x
$ hg ci -m 'Closed branch feature-x' --close-branch
$ hg up default
$ hg merge feature-x
$ hg ci -m merge
$ hg heads
(1 head)
$ hg branches
default 43:...
(1 branch)
The first o...
Declaration/definition of variables locations in ObjectiveC?
...In ObjC, they should only be used to declare constants, and generally only string constants. For instance:
extern NSString * const MYSomethingHappenedNotification;
You would then in your .m file declare the actual constant:
NSString * const MYSomethingHappenedNotification = @"MYSomethingHappened...
Detecting which UIButton was pressed in a UITableView
...)metaData:(id)target
Enjoy
#import <objc/runtime.h>
static char const * const kMetaDic = "kMetaDic";
#pragma mark - Getters / Setters
- (id)metaData:(id)target {
return objc_getAssociatedObject(target, kMetaDic);
}
- (void)setMetaData:(id)target withObject:(id)newObj {
...