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c# - How do I most elegantly express left join with aggregate SQL as LINQ query

c# - How do I most elegantly express left join with aggregate SQL as LINQ query

SQL: SELECT u.id, u.name, isnull(MAX(h.dateCol), '1900-01-01') dateColWithDefault FROM universe u LEFT JOIN history h ON u.id=h.id AND h.dateCol<GETDATE()-1 GROUP BY u.Id, u.name…


c# - Find node clicked under context menu

How can I find out which node in a tree list the context menu has been activated? For instance right-clicking a node and selecting an option from the menu. I can't use the TreeViews' SelectedNode prop…


Are the shift operators(<<,>>) arithmetic or logical in C?

In C, are the shift operators(<<,>>)arithmetic or logical?…


Disabling a ListView in C#, but still showing the current selection

I have a ListView control, and I'm trying to figure out the easiest/best way to disallow changing the selected row(s), without hiding the selected row(s). I know there's a HideSelection property, but…


Preventing a visitor from saving an image from my site

What are some effective strategies for preventing the use of my proprietary images? I'm talking about saving them, direct linking to them etc... Presently I have a watermark on the image, but I'd rat…


What's a good way to encapsulate data access with PHP/MySQL?

Most of my experience is on the MSFT stack, but I am now working on a side project, helping someone with a personal site with cheap hosting that is built on the LAMP stack. My options for installing…


My(Java/Swing) MouseListener isn't listening, help me figure out why

So I've got a JPanel implementing MouseListener and MouseMotionListener: import javax.swing.*; import java.awt.*; import java.awt.event.*; public class DisplayArea extends JPanel implements MouseLis…


html - CSS-Make divs align horizontally

I have a container div with a fixed width and height, with overflow: hidden. I want a horizontal row of float: left divs within this container. Divs which are floated left will naturally push onto the…


C# Dynamic Event Subscription

How would you dynamically subscribe to a C# event so that given a Object instance and a String name containing the name of the event, you subscribe to that event and do something(write to the console…


How do I*really* justify a horizontal menu in HTML+CSS?

You find plenty of tutorials on menu bars in HTML, but for this specific(though IMHO generic) case, I haven't found any decent solution:#THE MENU ITEMS SHOULD BE JUSTIFIED JUST AS PLA…





left how align and css text not example with center