ng-grid上的升/降过滤字符串

Question

Trying out Ascending and Descending type of sorting in Angular JS with Strings

Here is the Plunker The select box has two options Ascending and Descending

when Ascending is chosen than the grid should output the values with Importance in order LMH stands for Low-Medium-High and similarly for Descending that is HML

I have already asked these questions but sorry can't get my concepts right about sorting and filtering in Angular JS

UPDATE

I had implemented a part of it where I have sorted the contents in same order

Stack Question Here i have used a drop down for selection. and the same drop down has two more options of Ascending and Descending for which I am trying to find out answers.

Answer 1

I don't know of any non-hackish way of using an external select such as you show in your Plunker.

As for the sorting itself, you can create and use a custom sorting function:

var prioritySort = function(a, b){
    var priority = { L: 1, M: 2, H: 3 };
    if(priority[a] > priority[b]) return 1;
    if(priority[a] < priority[b]) return -1;
    return 0;
};

$scope.gridOptions = {
    data: 'myData',
    enableSorting: true,
    showFilter: true,
    columnDefs: [{ field: 'name', displayName: 'Name'},
    { field: 'age', displayName: 'Age' },
    { field: 'Importance', displayName: 'Importance', sortFn: prioritySort}]
};

Demo