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How to convert image to byte array
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instead of System.Drawing.Imaging.ImageFormat.Gif, you can use imageIn.RawFormat
– S.Serpooshan
Nov 26 '16 at 12:31
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How do I bind a WPF DataGrid to a variable number of columns?
My WPF application generates sets of data which may have a different number of columns each time. Included in the output is a description of each column that will be used to apply formatting. A simplified version of the output might be something like:
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Django queries - id vs pk
... is called id or object_id or whatever.
It also provides more consistency if you have models with different primary key fields.
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How to import CSV file data into a PostgreSQL table?
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actually use \copy would do the same trick if you do not have the super user access; it complaints on my Fedora 16 when using COPY with a non-root account.
– asksw0rder
Oct 15 '12 at 17:07
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Getting the name of the currently executing method
...at a lot of work has gone into making HotSpot very reliable. You need to know, though, in case you want your code to not rely on the behavior of a specific JVM.
– Thorbjørn Ravn Andersen
Apr 15 '13 at 8:53
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What is Lazy Loading?
...er Loading, where you load something right away, long before you need it.
If you are curious why people might use lazy loading, consider an application that takes a LOOOOONG time to start. This application is probably doing a lot of eager loading... loading things from disk, and doing calculations...
python list in sql query as parameter
...e values into a plain SQL string. That's absolutely fine for integers, but if we wanted to do it for strings we get the escaping issue.
Here's a variant using a parameterised query that would work for both:
placeholder= '?' # For SQLite. See DBAPI paramstyle.
placeholders= ', '.join(placeholder fo...
How do I restore a missing IIS Express SSL Certificate?
...air" option on IIS Express, the certificate has been reinstalled and I can now launch IIS Express sites using HTTPS.
The certificate is back:
And I can now launch the IIS Express site using HTTPS:
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Connect Java to a MySQL database
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Hi @SeanOwen I wonder that, why do we close rs and stmt? Why not just conn?
– Kamuran Sönecek
Apr 14 '16 at 6:37
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Importing a Swift protocol in Objective-C class
...in the objC header file, like this:
@protocol AnalyticProtocol;
You can now use the protocol in your objC class declaration:
@interface AnalyticFactory : NSObject
{
Class<AnalyticProtocol> _analyticProtocolClass; // The type of the analytic class currently used.
}
In your implementat...