大约有 30,000 项符合查询结果（耗时：0.0466秒） [XML]
How To Change DataType of a DataColumn in a DataTable?
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Gives error "Object must implement IConvertible." while converting Byte[] to string type column.
– Harshad Vekariya
Mar 22 '18 at 10:27
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For loop example in MySQL
...clare str VARCHAR(255) default ''; in the MySQL (5.6) console gives me the error message Error 1064 (42000): ... for the right syntax to use near '' at line 3, which is as clear as mud (although I assume it doesn't like the DEFAULT clause).
– Agi Hammerthief
Ma...
iPhone UITextField - Change placeholder text color
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On iOS 7 I got this error: [<UITextField 0x11561d90> valueForUndefinedKey:]: this class is not key value coding-compliant for the key _field.
– i_am_jorf
Apr 9 '14 at 19:27
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Play audio file from the assets directory
... catch ( Exception e )
{
Log.e ( "MUSIC SERVICE", "Error setting data source", e );
}
m.prepare ();
m.setVolume ( 1f, 1f );
// m.setLooping(true);
m.start ();
}
catch ( Exception e )
{
e.printStackTrace ();
}
}
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Git add all files modified, deleted, and untracked?
...was running git 1.5.2.5. git add -A was not working. From the script, no error message was reported. Only from the command line did I find that -A was not a legal option to add.
– Eponymous
Jan 16 '12 at 16:37
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Adding an identity to an existing column
...that was failing. I found a solution on stackoverflow by searching for the error text. It seems to be some strict syntax rule with brackets, although my table has no special characters in its name whatsoever.
– Jenny O'Reilly
Oct 3 '13 at 16:21
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“You don't have a SNAPSHOT project in the reactor projects list.” when using Jenkins Maven release p
...rent pom. Sadly if I change the version to include "-SNAPSHOT," I get the error, "Failed to execute goal org.apache.maven.plugins:maven-release-plugin:2.0:prepare (default-cli) on project myproject: Can't release project due to non released dependencies"
– Dave
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How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
...t, and will be surprise cast to float against your will, causing a runtime error.
== is not transitive because "0"== 0, and 0 == "" but "0" != ""
PHP Variables that have not been declared yet are false, even though PHP has a way to represent undefined variables, that feature is disabled with ==.
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How can I rename a project folder from within Visual Studio?
...n VS2019. Gives warnings about project references not existing and compile errors about missing the namespaces and classes in the referenced project.
– Jeff Walker Code Ranger
May 12 at 17:57
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How to print a number with commas as thousands separators in JavaScript
...;
const pass = result === expect;
console.log(`${pass ? "✓" : "ERROR ====>"} ${x} => ${result}`);
return pass;
}
let failures = 0;
failures += !test(0, "0");
failures += !test(100, "100");
failures += !test(1000, "1,000");
failures += !test(10000, "1...