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MSSQL Error 'The underlying provider failed on Open'
...S, your IIS user needs access to the database.
If you are using Entity Framework with Transactions, Entity Framework automatically opens and closes a connection with each database call. So when using transactions, you are attempting to spread a transaction out over multiple connections. This elev...
Get string character by index - Java
... of a certain character or number in a string, but is there any predefined method I can use to give me the character at the nth position? So in the string "foo", if I asked for the character with index 0 it would return "f".
...
ASP.NET MVC Conditional validation
...idation rules in MVC3; have your model inherit IValidatableObject and implement the Validate method:
public class Person : IValidatableObject
{
public string Name { get; set; }
public bool IsSenior { get; set; }
public Senior Senior { get; set; }
public IEnumerable<ValidationRes...
AndroidRuntime error: Parcel: unable to marshal value
...the HashMap no problem, however when startActivty() is called I get a runtime error stating that Parcel: unable to marshal value com.appName.Liquor.
...
Using Enum values as String literals
... but with a slightly different approach...
Option One: use the built-in name() on an enum. This is perfectly fine if you don't need any special naming format.
String name = Modes.mode1.name(); // Returns the name of this enum constant, exactly as declared in its enum declaration.
Option Two:...
Modify UIImage renderingMode from a storyboard/xib file
...(void)setImageRenderingMode:(UIImageRenderingMode)renderMode;
@end
@implementation UIImageView (Utils)
- (void)setImageRenderingMode:(UIImageRenderingMode)renderMode
{
NSAssert(self.image, @"Image must be set before setting rendering mode");
self.image = [self.image imageWithRenderingMode...
Getting a slice of keys from a map
...ppend(keys, k)
}
}
To be efficient in Go, it's important to minimize memory allocations.
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Adding external library into Qt Creator project
...Qt. The idea is that you have to separate the directory from the library name (without the extension and without any 'lib' prefix). Of course, if you are including a Windows specific lib, this really doesn't matter.
In case you want to store your lib files in the project directory, you can referenc...
How to update only one field using Entity Framework?
...) { Id = userId, Password = password };
using (var db = new MyEfContextName())
{
db.Users.Attach(user);
db.Entry(user).Property(x => x.Password).IsModified = true;
db.SaveChanges();
}
}
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How to search for a part of a word with ElasticSearch
...
n-grams can waste memory if you're not careful; the min_gram and max_gram analyzer settings should be enough to narrow searches down to one record, and no more (a max_gram of 15 over a name is probably wasteful, since very few names share a su...