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The cast to value type 'Int32' failed because the materialized value is null
...where there can be unexpected nulls in different places. ...DefaultIfEmpty(0).Sum(0) can help in this (quite simple) case, where there might be no elements and sql's SUM returns null whereas c# expect 0.
A more general approach is to use ?? which will be translated to COALESCE whenever there is a r...
Get local href value from anchor (a) tag
... points:
document.getElementById("aaa").href; // http://example.com/sec/IF00.html
while the one below gets the value of the href attribute:
document.getElementById("aaa").getAttribute("href"); // sec/IF00.html
share
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Installing Python packages from local file system folder to virtualenv with pip
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10 Answers
10
Active
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bool to int conversion
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208
int x = 4<5;
Completely portable. Standard conformant. bool to int conversion is implicit!...
Remove characters from NSString?
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280
You could use:
NSString *stringWithoutSpaces = [myString
stringByReplacingOccurrencesOfStri...
What is a “context bound” in Scala?
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107
Did you find this article? It covers the new context bound feature, within the context of arra...
How do you specify a different port number in SQL Management Studio?
I am trying to connect to a Microsoft SQL 2005 server which is not on port 1433. How do I indicate a different port number when connecting to the server using SQL Management Studio?
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Select every Nth element in CSS
...t;/div>
<h2></h2>
<div>9</div> <div>10</div>
<div>11</div> <div>12</div>
<h2></h2>
<div>13</div> <div>14</div>
<div>15</div> <div>16</div>
</body>
For every...
jQuery append() - return appended elements
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Jeroen
50.2k2727 gold badges161161 silver badges258258 bronze badges
answered Jan 29 '10 at 1:49
SLaksSLaks
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Python datetime - setting fixed hour and minute after using strptime to get day,month,year
I've successfully converted something of 26 Sep 2012 format to 26-09-2012 using:
3 Answers
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