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Difference between events and delegates and its respective applications [closed]
...ective, events are actions raised by an object when certain conditions are met. For example, my Stock class has a property called Limit, and it raises an event when the stock prices reaches the Limit. This notification is done via an event. Whether anyone actually cares about this event and subscrib...
Drag and drop files into WPF
...ent in XAML, as well as setting the AllowDrop attribute.
<StackPanel Name="ImagePanel" Drop="ImagePanel_Drop" AllowDrop="true">
...
</StackPanel>
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CSS to make HTML page footer stay at bottom of the page with a minimum height, but not overlap the p
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A simple method is to make the body 100% of your page, with a min-height of 100% too. This works fine if the height of your footer does not change.
Give the footer a negative margin-top:
footer {
clear: both;
position: relat...
std::enable_if to conditionally compile a member function
...e_if . After I read this answer , I thought it shouldn't be too hard to come up with a simple example. I want to use std::enable_if to choose between two member-functions and allow only one of them to be used.
...
ACE vs Boost vs POCO [closed]
I have been working with the Boost C++ Libraries for quite some time. I absolutely love the Boost Asio C++ library for network programming. However I was introduced to two other libraries: POCO and Adaptive Communication Environment (ACE) framework . I would like to know the good and bad of ...
Static fields on a null reference in Java
static members ( static fields or static methods) in Java are associated with their respective class rather than the objects of this class. The following code attempts to access a static field on a null reference.
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SQL Server : Columns to Rows
...ction to convert the columns into rows:
select id, entityId,
indicatorname,
indicatorvalue
from yourtable
unpivot
(
indicatorvalue
for indicatorname in (Indicator1, Indicator2, Indicator3)
) unpiv;
Note, the datatypes of the columns you are unpivoting must be the same so you might have to...
SQL query to get all values a enum can have
Postgresql got enum support some time ago.
4 Answers
4
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POST request send json data java HttpUrlConnection
...auth=new JSONObject();
JSONObject parent=new JSONObject();
cred.put("username","adm");
cred.put("password", "pwd");
auth.put("tenantName", "adm");
auth.put("passwordCredentials", cred.toString()); // <-- toString()
parent.put("auth", auth.toString()); // <-- toString()
OutputStre...
How to execute Python scripts in Windows?
...g myself:
"c:\python26\python.exe" "blah.py" foo
If you type the same thing, including the quotation marks, then you'll get results identical to when you just type "blah.py foo". Now you're in a position to figure out the rest of your problem for yourself.
(Or post more helpful informati...