SlickGrid filtering...

[Rimantas Usevicius]

Hi,

Perhaps I'm newbie and with JavaScript , please help , how to improve filtering options with SlickGrid . I did something similar like "example-header-row.html" . Here is filtering function :

function filter(item) {

    for (var columnId in columnFilters) {

      if (columnId !== undefined && columnFilters[columnId] !== "") {

        var c = grid.getColumns()[grid.getColumnIndex(columnId)];

        if (item[c.field] != columnFilters[columnId]) {

          return false;

        }

      }

    }

    return true;

  }

What I want - for char columns to do filtering as substring alreday . But I don't know how to compare items column object ... :( . I tried that :

        if ( item[c.field].substring(  columnFilters[columnId].trim().length ) != columnFilters[columnId].trim() )

           return false;

But that isn't working ...

Thanks in advance !

[Rimantas Usevicius]

   Hi !

   After some search found solution for that . Now I have another question . I want to extend this filtering possibility and to do unique own one function for that . Ussually data are chars, dates, booleans and nums. What I missed in Slickgrid - which type of data is used in column ? Maybe it alreday exist, but after reviewing sources I didn't found ... If that exist - can you direct me to true path ?  Slick.Editors type ? For nums types I want to improve filters with <,> and other numeric operands symbols , the same can be done and with dates types . At this time I can do that only with field ID - recognizing of that I can say what type of column it's . But this solution ins't clear - better it will be if detect column type from grid .

  Many thanks in advance and any help !