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How to get ALL child controls of a Windows Forms form of a specific type (Button/Textbox)?
...ls.SelectMany(ctrl => GetAll(ctrl,type))
.Concat(controls)
.Where(c => c.GetType() == type);
}
To test it in the form load event I wanted a count of all controls inside the initial GroupBox
private void Form1_Load(object sender, Ev...
JavaScript curry: what are the practical applications?
...guments);
return function() {
return __method.apply(this, args.concat([].slice.apply(null, arguments)));
}
}
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SQL Query to concatenate column values from multiple rows in Oracle
Would it be possible to construct SQL to concatenate column values from
multiple rows?
10 Answers
...
What is the difference between String.Empty and “” (empty string)?
... and String.Empty is the same length, the compiler doesn't optimize string concatenation (see Eric Lippert's blog post) for String.Empty arguments. The following equivalent functions
string foo()
{
return "foo" + "";
}
string bar()
{
return "bar" + string.Empty;
}
generate this IL
.met...
SASS - use variables across multiple files
...S Task
var gulp = require('gulp');
var sass = require('gulp-sass');
//var concat = require('gulp-concat');
var uglifycss = require('gulp-uglifycss');
var sourcemaps = require('gulp-sourcemaps');
gulp.task('styles', function(){
return gulp
.src('sass/**/*.scss')
.pipe(so...
C# Sanitize File Name
...
string clean = String.Concat(dirty.Split(Path.GetInvalidFileNameChars()));
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Select all columns except one in MySQL?
...way, you need to have permissions of course for doing this ...
SET @sql = CONCAT('SELECT ', (SELECT REPLACE(GROUP_CONCAT(COLUMN_NAME), '<columns_to_omit>,', '') FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '<table>' AND TABLE_SCHEMA = '<database>'), ' FROM <table>');
...
How do I join two SQLite tables in my Android application?
... RefuelTable.TABLE_NAME + " , " + ExpenseTable.TABLE_NAME,
Utils.concat(RefuelTable.PROJECTION, ExpenseTable.PROJECTION),
RefuelTable.EXP_ID + " = " + ExpenseTable.ID + " AND " + RefuelTable.ID + " = " + id,
null,
null,
null,
null
);
For a detaile...
How to change the foreign key referential action? (behavior)
...wrote something to make the statements for me. Figured I'd share:
SELECT
CONCAT('ALTER TABLE `' ,rc.TABLE_NAME,
'` DROP FOREIGN KEY `' ,rc.CONSTRAINT_NAME,'`;')
, CONCAT('ALTER TABLE `' ,rc.TABLE_NAME,
'` ADD CONSTRAINT `' ,rc.CONSTRAINT_NAME ,'` FOREIGN KEY (`',kcu.COLUMN_NAME,
'`) RE...
Return multiple columns from pandas apply()
... series, new columns exist):')
df_test = create_new_df_test()
df_test = pd.concat([df_test, pd.DataFrame(columns=['size_kb', 'size_mb', 'size_gb'])])
%timeit result = df_test.apply(sizes_pass_series_return_series, axis=1)
print('\nPandafied (pass series, return tuple, new columns dont exist):')
df_...