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Value cannot be null. Parameter name: source
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I had this one a while back, and the answer isn't necessarily what you'd expect. This error message often crops up when your connection string is wrong.
At a guess, you'll need something like this:
<connectionStrings>
<add name="hublisherE...
Python __str__ versus __unicode__
...ns. Generally, you should put all your string formatting in __unicode__(), and create a stub __str__() method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3.0, str contains characters, so the same methods are named __bytes__() and __str__(). These behave as expected.
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Disabled UIButton not faded or grey
...utton which I have created in Interface Builder. I can successfully enable and disable it like this in my code ...
19 Answe...
How to use null in switch
... Integer or other Wrapper class, because of unboxing. But what about enums and strings? Why can't they be null?
– Luan Nico
Nov 2 '13 at 11:20
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Importing variables from another file?
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from file1 import *
will import all objects and methods in file1
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How can I find the number of arguments of a Python function?
...ents of a Python function? I need to know how many normal arguments it has and how many named arguments.
10 Answers
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Difference between getContext() , getApplicationContext() , getBaseContext() and “this”
... between getContext() , getApplicationContext() , getBaseContext() , and " this "?
8 Answers
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Why is a pure virtual function initialized by 0?
...He also states explicitly that this need not set the vtable entry to NULL, and that doing so is not the best way of implementing pure virtual functions.
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How to change the text on the action bar
Currently it just displays the name of the application and I want it to display something custom and be different for each screen in my app.
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How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
I've been digging through some parts of the Linux kernel, and found calls like this:
10 Answers
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