Knockout Custom Binding For Bootstrap Select Not Updating Viewmodel "selectedCategories/selectedCategory"

I am creating a knockout js custom binding that will allow me to use data-binding with bootstrap multiselect. I need it to work for single 's and also multiselects &l Solution 1: I'm not sure I can get you to the point of making it work, but some pointers: DOM manipulation belongs in the binding handler. In particular, the initialization: $(this).multiselect({ goes in the init. The parameter object you pass to that initialization is what should be the bound variable for your multiselect binding. (I have no idea what _categoryID is for.) It will be what causes the update to fire. It will be what valueAccessor() returns. Although optionsText and optionsValue should have simple string arguments, value's argument should be an unquoted observable name. This is one key issue in the question you're asking. Only wrap (directly call the ko.bindingHandlers entry for) handlers that you aren't binding separately, and only when you need their binding to be part of what you're doing. You may need to wrap options, optionsText, and optionsValue instead of including them in the data-bind. But one or the other. Update I've updated your fiddle to handle the multiselect case. I didn't find that the selectedOptions binding handler was working for me, so I had to put this in the init. This breaks the single-select case; need to special-case it. $(element).change(function (e) { var selectedOptions = ko.utils.arrayFilter(Array.from(e.target.options), function (opt) { return opt.selected; }); var selectedValues = ko.utils.arrayMap(selectedOptions, function (opt) { return opt.value; }); valueAccessor()(selectedValues); }); Copy Share Post a Comment for "Knockout Custom Binding For Bootstrap Select Not Updating Viewmodel "selectedCategories/selectedCategory"" Top Question Get Fingerprint Of Current Page's SSL Certificate In A Chrome Extension I'm attempting to write an extension which verifies the… SetInterval Slows Down With Tab/window Inactive I build a web app and I use setInterval with 500ms timer fo… How To Loop Through & Display Javascript Multidimensional Array I have a testing search software and it stores the data in … Why Is It Possible To Query JQuery('div') Like An Array? I got another question regarding jQuery's architecture.… Prevent Right/left Arrow Navigation In Select I have 3 selects that I am enabling keyboard navigation(rig… Declarative Dojox.grid.datagrid's Header Has Onclick Event? Is it possible to have onclick in dojox.grid.datagrid's… JS Validation IP:Port I have a question, on how to validate IP:Port together. exa… Angular 2+: Update @Input Property When Parent Value Changes I have a parent and child component where the parent is pas… Calculate One Variable Based On Changing Input I have the following function: function updateInput(ish){ … How To Reset Incresed Value To It's Initial Value In AngularJs $scope.count = 23; // this is the initial value Increas… December 2024 (1) November 2024 (39) October 2024 (55) September 2024 (21) August 2024 (207) July 2024 (201) June 2024 (425) May 2024 (712) April 2024 (438) March 2024 (876) February 2024 (901) January 2024 (843) December 2023 (938) November 2023 (369) October 2023 (514) September 2023 (265) August 2023 (315) July 2023 (263) June 2023 (345) May 2023 (208) April 2023 (129) March 2023 (145) February 2023 (172) January 2023 (270) December 2022 (126) November 2022 (234) October 2022 (160) September 2022 (165) August 2022 (503) July 2022 (295) June 2022 (271) Menu Halaman Statis Beranda © 2022 - JavaScript Site