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The type or namespace name 'Objects' does not exist in the namespace 'System.Data'
... Server to create an n-tier app. I am creating some base classes common to all my DAL components. In this base class, i want to handle the connection state of the ObjectContext base class inherited by entities object.
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What does the “at” (@) symbol do in Python?
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Example
class Pizza(object):
def __init__(self):
self.toppings = []
def __call__(self, topping):
# When using '@instance_of_pizza' before a function definition
# the function gets passed onto 'topping'.
self.toppings.appe...
Mercurial: Can I rename a branch?
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Update to the stiging branch and create a new branch off of it. Then close the old branch.
In summary:
hg update stiging
hg branch staging
hg commit -m"Changing stiging branch to staging."
hg update stiging
hg commit --clos...
How to set an environment variable only for the duration of the script?
On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
Why #egg=foo when pip-installing from git repo
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per pip install -h the "egg" string is the directory that gets checked out as part of the install
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Python append() vs. + operator on lists, why do these give different results?
...quences) by concatenating the element. The append-method however does literally what you ask: append the object on the right-hand side that you give it (the array or any other object), instead of taking its elements.
An alternative
Use extend() if you want to use a function that acts similar to the ...
Django ModelForm: What is save(commit=False) used for?
Why would I ever use save(commit=False) instead of just creating a form object from the ModelForm subclass and running is_valid() to validate both the form and model?
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C# Equivalent of SQL Server DataTypes
For the following SQL Server datatypes, what would be the corresponding datatype in C#?
5 Answers
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Cause of a process being a deadlock victim
...ith a Select which takes a long time to finish, on the order of 5 to 10 minutes. I am currently not using NOLOCK as a hint to the MS SQL database engine. At the same time we have another process doing updates and inserts into the same database and same tables. The first process has started,...
Change Screen Orientation programmatically using a Button
I think this is implementable since screen rotation behaviour can go up to the application level.
5 Answers
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