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Check if image exists on server using JavaScript?
... good, bad) {
var img = new Image();
img.onload = good;
img.onerror = bad;
img.src = imageSrc;
}
checkImage("foo.gif", function(){ alert("good"); }, function(){ alert("bad"); } );
JSFiddle
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...
How to output MySQL query results in CSV format?
...|
edited Oct 17 '12 at 17:05
brent.payne
3,73133 gold badges1919 silver badges1717 bronze badges
answere...
How to switch between hide and view password
... Mostafa
21.3k99 gold badges5151 silver badges5050 bronze badges
answered Mar 8 '11 at 10:51
QlimaxQlimax
4,87344 gold badges...
commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
...alue>
</context-param>
and you are also not seeing any googlable errors and/or warnings in browser's JavaScript console (press F12 in Chrome/Firefox23+/IE9+ to open the web developer toolset and then open the Console tab), then work through below list of possible causes.
Possible causes
U...
Hibernate - A collection with cascade=”all-delete-orphan” was no longer referenced by the owning ent
...erenced distinctly points out creating a new HashSet but you can have this error anytime you reassign the set. For example:
public void setChildren(Set<SonEntity> aSet)
{
this.sonEntities = aSet; //This will override the set that Hibernate is tracking.
}
Usually you want to only "new" ...
How do I find out which process is locking a file using .NET?
... to determine file locker.");
try
{
const int ERROR_MORE_DATA = 234;
uint pnProcInfoNeeded = 0,
pnProcInfo = 0,
lpdwRebootReasons = RmRebootReasonNone;
string[] resources = new string[] { path }; // Just checking...
Logging best practices [closed]
...gs/uses the event ids, and can make it easy to provide guidance for common errors, e.g. error 5178 means your database connection string is wrong, etc.
Event id's should follow some kind of structure (similar to the Theory of Reply Codes used in email and HTTP), which allows you to treat them by ca...
Regex for splitting a string using space when not surrounded by single or double quotes
... EditPad.
– carlsz
Dec 14 '08 at 16:05
What if I want to allow escaped quotes in the strings \"?
...
Database Diagram Support Objects cannot be Installed … no valid owner
I tried to create a database diagramm with SQL Server 2008, but an error occurs:
14 Answers
...
Thread context switch Vs. process context switch
... |
edited Mar 22 '19 at 2:05
Nan Xiao
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answer...