Repair Cannot Determine Comparator For Sort Field With Name (Solved)

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Cannot Determine Comparator For Sort Field With Name

So in order to sort any kind of object, all we need to do is to convert the object into a number that we can compare with. This is key to getting your logic right in the comparisons.

If you return -1 that moves the $b variable down the array, return 1 moves $b up the array Sort setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations. fields : internalPropList; var len:int = propList.length; var propName:String; while (result == 0 && (i < len)) { propName = propList[i]; result = compareValues(a[propName], b[propName]); i++; } return result; } function http://inviewsoftware.com/cannot-determine/cannot-determine-comparator-for-sortfield.html

Returns:One of the constants SCORE, DOC, AUTO, STRING, INT or FLOAT. getLocale public Locale getLocale() Returns the Locale by which term values are interpreted. I tried using String.localeCompare() instead, but that has some nasty side effects of sorting being called too often –Shervin Asgari Feb 28 '13 at 8:15 add a comment| up vote 8 The default sort comparator checks the sort fields in array order until it determinines a sort order for the two fields being compared. Constructor Summary SortField(Stringfield) Creates a sort by terms in the given field where the type of term value is determined dynamically (AUTO). https://forums.adobe.com/thread/29086

Typically the sort is defined for collections of complex items, that is collections in which the sort is performed on one or more properties of the objects in the collection. Here we are extending the singleton concept to prevent the user from freely creating instances. staticint SCORE Sort by document score (relevancy). See Also:Constant Field Values INT public static final int INT Sort using term values as encoded Integers.

No, it would be pure gamble - a matter of luck. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Parameters:field - Name of field to sort by, cannot be null. SortField public SortField(Stringfield, booleanreverse) Creates a sort, possibly in reverse, by terms in the given field where the type Object fields : Array An Array of SortField objects that specifies the fields to compare.

The following approach is not recommended and included here only for demonstration and comparisons purposes. Instead of creating an instance of the comparator, we call the get instance method: Collections.sort(students, StudentGradeComparator2.getInstance()) as shown below. import java.util.ArrayList; import java.util.Collections; import java.util.List; public class Example2 { public static void main(String[] args) { List students = new ArrayList(); students.add(new Student1("Albert Attard", 65)); students.add(new Student1("Mary Borg", 93)); students.add(new Student1("Joe http://stackoverflow.com/questions/1368122/flex-sort-writing-a-custom-comparefunction FIRST_INDEX_MODE Return the position where the first occurrance of the values is found.

Changing the sign will change the sorting order. findRestriction=Find criteria must contain at least one sort field value. col.sort = sort; // Apply the sort to the collection. If you specify this property, Flex ignores any compareFunction properties that you specify in the SortField objects that you use in this class.

  • In order to achieve this using the comparable interface (above) we have to add more fields to the student class in order to be able to determine which field we're sorting
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  • See Also:Constant Field Values AUTO public static final int AUTO Guess type of sort based on field contents.
  • Sort propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.

This follows the method's contract/specifications. visit col.addItem({first:"Anders", last:"Dickerson"}); // Create the Sort instance. To get more type specifc, you may want to look into using a data model and check out the validator classes. asked 7 years ago viewed 21543 times active 4 years ago Related 2How do I use SortField to sort my data numerically in Flex/ActionScript?1867Sort a Python dictionary by value980How to sort

Sort LAST_INDEX_MODE : String = "last"[static] When executing a find return the index for the last matching item. have a peek at these guys All code listed below is available at: https://github.com/javacreed/sorting-objects-using-comparator. Implementation public function get fields():Array public function set fields(value:Array):void See also SortField uniqueproperty unique:Boolean[read-write] Indicates if the sort should be unique. After you assign a Sort instance to the view's sort property, you must call the view's refresh() method to apply the sort criteria.

Note that before PHP 7.0.0 this integer had to be in the range from -2147483648 to 2147483647. In simple terms, this pattern prevents the user to create more than one instance of this object. So we can simple use the Java API provided to perform sorting. http://inviewsoftware.com/cannot-determine/cannot-determine-comparator-for-sortfield-with-name.html This avoids the n2 log(n) performance that would result from attempting to sort a linked list in place… One thing to take away from this article is do not reinvent the

Published: 69 postsWeb: http://www.javacreed.com Leave a Comment Click here to cancel reply. unknownMode=Unknown find mode. Unique sorts fail if any value or combined value specified by the fields listed in the fields property result in an indeterminate or non-unique sort order; that is, if two or

import java.util.Arrays; public class Example7 { public static void main(String[] args) { Student1[] students = { new Student1("Albert Attard", 65), new Student1("Mary Borg", 93), new Student1("Joe Vella", 47), new Student1("Paul Galea",

Please type your message and try again. incorrectAddition=Attempt to add an item already in the view. How to justify Einstein notation manipulations without explicitly writing sums? Can be null if type is SCORE or DOC.type - Type of values in the terms.reverse - True if natural order should be reversed. SortField public SortField(Stringfield, Localelocale) Creates a

Sort values are Integer and lower values are at the front. for each(var org:String in orgNameList) { customerDataList.addItem(org); } Then I just tacked on the 'Create new...' item, like this: if(userIsAllowedToCreateNewCustomer) { customerDataList.addItem(CREATE_NEW); customerDataList.refresh(); } share|improve this answer answered Jan 17 '11 For every student we have an instance of the sortby field, which we cannot make static. this content I want "ALL" to always be the first selection in my dataProvider and then the rest alphabetical.

In this case, apply the sort to the simple type directly.