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Understanding events and event handlers in C#
... their methods to be referenced from our delegate, and we are a UI button, then: we can ask anyone who is interested in whether I was clicked, to register their method with us (via the event we exposed). We can use all those methods that were given to us and reference them by our delegate. And then,...
Insert, on duplicate update in PostgreSQL?
...t be unique
UPDATE db SET b = data WHERE a = key;
IF found THEN
RETURN;
END IF;
-- not there, so try to insert the key
-- if someone else inserts the same key concurrently,
-- we could get a unique-key failure
BEGIN
INSE...
Using SQL Server 2008 and SQL Server 2005 and date time
...
this fix doesnt work for me ?? forums.asp.net/p/1770522/4838628.aspx/…
– Welsh King
Feb 18 '12 at 10:14
...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...展由中文网开发及维护，基于开源 aix-SQLite 拓展。
与 TaifunSQLite 功能类似，但TaifunSQLite是收费的，美刀。
.aix 拓展下载：
cn.fun123.SQLite.aix
SQLite
SQLite 是 Android 内置的小型、快速、独立的 SQL（结构化查询语...
Routing: The current request for action […] is ambiguous between the following action methods
...distinguish it. Using the same Global.asax as above, your controller would then look like this:
public ActionResult Browse(string id)
{
var summaries = /* search using id as search term */
return View(summaries);
}
[ActionName("StartBrowse")]
public ActionResult Browse()
{
var summarie...
Why can I access TypeScript private members when I shouldn't be able to?
...'t be a member of the class, it would be a local variable created inside a function scope inside the code that creates the object. That would mean that you can't access it like a member of the class, i.e. using the this keyword.
...
Catch an exception thrown by an async void method
...hange the method signatures - alter Foo() so that it returns type Task and then DoFoo() can await Foo(), as in this code:
public async Task Foo() {
var x = await DoSomethingThatThrows();
}
public async void DoFoo() {
try {
await Foo();
} catch (ProtocolException ex) {
/...
Can two applications listen to the same port?
...
iptables -m statistic --mode random --probability 0.5 is fun.
– Jed Smith
Nov 7 '09 at 21:27
1
...
Start / Stop a Windows Service from a non-Administrator user account
... which either you give the command or run the code is a non-Admin account, then you need to set the privileges to that particular user account so it has the ability to start and stop Windows Services. This is how you do it.
Login to an Administrator account on the computer which has the non-Admin ac...
Find a Git branch containing changes to a given file
...e read x h; do if [ "`git log -n 1 --format=%H $h -- $FILENAME`" = "$h" ]; then echo $br; fi; done; done | sort -u
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