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Which annotation should I use: @IdClass or @EmbeddedId
...and @EmbeddedId is when it comes to write HQL :
With @IdClass you write:
select e.name from Employee e
and with @EmbeddedId you have to write:
select e.employeeId.name from Employee e
You have to write more text for the same query. Some may argue that this differs from a more natural language l...
Run a batch file with Windows task scheduler
...cepted answer, making sure that "run with the highest privileges" are also selected.
– mheavers
Dec 28 '15 at 16:05
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show 4 more comments
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AppSettings get value from .config file
...iguration
Go to your Solution Explorer and right click on References and select Add reference. Select the Assemblies tab and search for Configuration.
Here is an example of my App.config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<suppo...
How to call an async method from a getter or setter?
...
You can use Task like this :
public int SelectedTab
{
get => selected_tab;
set
{
selected_tab = value;
new Task(async () =>
{
await newTab.ScaleTo...
Popup弹出菜单扩展 · App Inventor 2 中文网
...触发的事件
如果菜单项被点击，会触发MenuItemSelected事件。事件的参数ID是项目的编号，从1开始。如果设置了AutoCheck，Checked是当前的新的选中状态。
为了节省大量的if... else if... else块，前五个菜单项的点击事件作为...
Trimming a huge (3.5 GB) csv file to read into R
...
My try with readLines. This piece of a code creates csv with selected years.
file_in <- file("in.csv","r")
file_out <- file("out.csv","a")
x <- readLines(file_in, n=1)
writeLines(x, file_out) # copy headers
B <- 300000 # depends how large is one pack
while(length(x)) {
...
What is the Windows equivalent of the diff command?
...nd line.
You can set the PATH variable by right clicking on Computer and selecting Properties. Then you can click on Advanced System Settings on the left side of the screen. In the pop up, click Environment Variables and then either add or update the PATH variable in your user variables with Git\b...
JSON.Net Self referencing loop detected
...overload:
JsonConvert.SerializeObject((from a in db.Events where a.Active select a).ToList(), Formatting.Indented,
new JsonSerializerSettings() {
ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore
}
);
If you'd like to make this the default behaviour, add a
Glob...
URLs: Dash vs. Underscore [closed]
...
also worth noting that underscored_text is selectable as a whole by double clicking in some devices and long-pressing on mobiles, whereas with dash-separated-text the same actions select each separated word. Think about if a user would ever try to copy out something f...
Regular expression to match balanced parentheses
I need a regular expression to select all the text between two outer brackets.
21 Answers
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