我接受了有趣的工作，接受别人的代码并试图弄明白......
我一直在试图弄清楚如何阻止Kendo UI下拉按字母顺序排序？
<select id="ddlArtworkStatuses" onlyPreparedValues="true"
readOnlyInput="true" data-bind="idNameOptions: artworkStatuses,
comboboxSelectedValue: artworkStatusId"></select>
出于某种原因，这可以按照惯例进行排序，但我希望它能保持数据源中的顺序。我已仔细检查以确保它符合我想要的顺序。
它没有使用Kendo UI的标准方式，我找不到任何以这种方式使用它的例子？
它将视图绑定到模型，我认为该视图位于顶部？
<!-- ko with: fabricationModel -->
vm.fabrication文件是这样的：
(function (app) {
app.namespace("models");
var resources = {
unableToDeleteArtworkMessage: "This artwork cannot be deleted because it is linked to one or more of the following: Movements, Shows, POs. Or it has Imported Costs, Sales or Restoration Cases.",
unableToBlankArtworkFullyMessage: "This artwork has some data that will not be blanked if you continue. This could be one or more of the following: Movements, Shows, POs, Imported Costs, Sales or Restoration Cases. Do you want to continue?",
deleteArtworkTitle: "Delete artwork",
blankArtworkTitle: "Blank Artwork",
duplicateTitle: "New artwork form is pre-populated",
duplicateMessage: "You can make changes to Fabrication form fields. Record will be created after you press save button",
saveError: 'An error occured during artwork saving. Changes were not saved.'
};
app.models.FabricationModel = function (datasource) {
var emitter = new app.events.EventEmitter(),
self = this,
duplicateArtwork = ko.observable(false);
this.isNewArtwork = ko.observable(false);
this.isActivated = ko.observable(false);
this.showCreationInformation = ko.observable(true);
this.wipeArtworkModel = new app.models.WipeArtworkDialogModel(datasource);
this.internalArtworkModel = ko.observable();
this.editCategoryModel = new app.models.EditDhCategoryModel();
// alert("data=" + this.artworkStatuses);
this.isReadOnly = ko.computed(function () {
if (!self.internalArtworkModel()) {
return true;
}
return self.internalArtworkModel().isReadOnly();
});
this.canSaveStudioStatusOnly = ko.computed(function () {
if (!self.internalArtworkModel()) {
return false;
}
return self.internalArtworkModel().isUnblockStatusActive()
&& self.internalArtworkModel().isReadOnly()
&& self.internalArtworkModel().isStudioStatusVisible();
});
this.canSaveCatRaisOnly = ko.computed(function () {
if (!self.internalArtworkModel()) {
return false;
}
return self.internalArtworkModel().isReadOnly()
&& self.internalArtworkModel().isArchiveProvenanceWriter();
});
this.isNewOrDuplicating = ko.computed(function () {
return self.isNewArtwork() || duplicateArtwork();
});
this.activate = function (params) {
var id = params.id || 0;
self.isNewArtwork(!id);
return self.loadArtworkDetails(id);
};
this.isValid = function () {
return self.internalArtworkModel() && self.internalArtworkModel().errors().length == 0;
};
this.loadArtworkDetails = function (id) {
var action = self.isNewArtwork() ? datasource.artworks.getEmpty : datasource.artworks.getById;
return action(id)
.done(function (result) {
var mapper = app.mappers["fabrication"],
model = mapper.map(result.data);
self.internalArtworkModel(model);
self.editCategoryModel.categoryId(model.defaultDhCategoryId);
self.editCategoryModel.setModeAsCategoryChanging();
if (self.isNewArtwork()) {
self.editCategoryModel.setModeAsCreation();
self.editCategoryModel.show();
}
self.isActivated(true);
duplicateArtwork(false);
$("a#science-link").attr("href", window.location.href);
triggerLoadEvent();
});
};
this.saveArtwork = function () {
if (self.isValid()) {
return saveInternal($.noop);
}
};
this.editCategory = function () {
self.editCategoryModel.show();
};
this.onLoad = function (callback) {
emitter.subscribe("load", callback);
};
this.onCategoryChanged = function (callback) {
emitter.subscribe("category-changed", callback);
};
this.onDelete = function (callback) {
emitter.subscribe("delete", callback);
};
this.onCreated = function (callback) {
emitter.subscribe("artwork-created", callback);
};
this.onUpdated = function (callback) {
emitter.subscribe("artwork-updated", callback);
};
this.onBlanked = function (callback) {
emitter.subscribe("blanked", callback);
};
this.saveStudioStatusInt = function () {
return saveStudioStatusInternal($.noop);
};
this.saveCatRaisInt = function () {
return saveCatRaisInternal($.noop);
};
this.saveStudioStatus = ko.asyncCommand({
execute: function (complete) {
saveStudioStatusInternal(complete);
},
canExecute: function (isExecuting) {
return !isExecuting && self.canSaveStudioStatusOnly();
}
});
this.saveCatRais = ko.asyncCommand({
execute: function (complete) {
saveCatRaisInternal(complete);
},
canExecute: function (isExecuting) {
return !isExecuting && self.canSaveCatRaisOnly();
}
});
this.save = ko.asyncCommand({
execute: function (complete) {
return saveInternal(complete);
},
canExecute: function (isExecuting) {
if (!self.isValid()) {
showErrors();
}
return !isExecuting && self.isValid();
}
});
function saveStudioStatusInternal(completeCallback) {
var model = self.internalArtworkModel();
triggerSaveStudioStatusEvent();
datasource.artworks.saveStudioStatus(model.artworkId(), model.artworkStatusId(), model.studioStatusId).always(completeCallback);
}
function saveCatRaisInternal(completeCallback) {
var model = self.internalArtworkModel();
triggerSaveStudioStatusEvent();
datasource.artworks.saveCatRais(model.artworkId(), model.inclusion(), model.image(), model.details(), model.crReady(), model.selectedVolume.selected.value).always(completeCallback);
}
this.onSaveStudioStatus = function (callback) {
emitter.subscribe("saveStudioStatus", callback);
};
function triggerSaveStudioStatusEvent() {
emitter.publish("saveStudioStatus");
}
this.beginArtworkDeletion = function () {
if (!self.internalArtworkModel().canBeBlanked) {
jAlert(resources.unableToDeleteArtworkMessage, resources.deleteArtworkTitle);
return;
}
self.wipeArtworkModel.beginArtworkDeletion(self.internalArtworkModel().artworkId());
};
this.beginArtworkBlanking = function () {
if (!self.internalArtworkModel().canBeBlanked) {
//jAlert(resources.unableToBlankArtworkMessage, resources.blankArtworkTitle);
app.alerts.appConfirm(resources.unableToBlankArtworkFullyMessage, resources.blankArtworkTitle, function (ok) {
if (ok) {
self.wipeArtworkModel.beginArtworkBlanking(self.internalArtworkModel().artworkId());
}
});
return;
}
self.wipeArtworkModel.beginArtworkBlanking(self.internalArtworkModel().artworkId());
};
this.duplicateArtwork = function () {
if (!self.internalArtworkModel()) {
return;
}
duplicateArtwork(true);
resetModelBeforeDuplication();
if (self.isValid()) {
showErrors();
}
jAlert(resources.duplicateMessage, resources.duplicateTitle);
};
function saveInternal(completeCallback) {
var mapper = app.mappers["fabrication"];
//alert("saving now...");
var unmappedModel = mapper.toJS(self.internalArtworkModel());
if (duplicateArtwork()) {
return saveDuplicatedArtwork(unmappedModel, completeCallback);
}
if (unmappedModel.artworkId) {
return updateArtwork(unmappedModel, completeCallback);
}
return createArtwork(unmappedModel, completeCallback);
}
function saveDuplicatedArtwork(model, completeCallback) {
return datasource.artworks.duplicate(model)
.always(completeCallback)
.fail(function (response) {
jAlert(resources.saveError);
})
.done(function (id) {
triggerArtworkCreatedEvent(id);
duplicateArtwork(false);
self.showCreationInformation(true);
});
}
function updateArtwork(model, completeCallback) {
return datasource.artworks.save(model)
.always(completeCallback)
.fail(function (response) {
jAlert(resources.saveError);
})
.done(function (result) {
if (!result) {
return;
}
var mapper = app.mappers["fabrication"],
mappedModel = mapper.map(result.data);
triggerUpdateEvent(
{
dhCategory: mappedModel.dhCategory(),
refNumber: mappedModel.refNumber(),
computedTitle: mappedModel.computedTitle()
});
self.internalArtworkModel(mappedModel);
});
}
function createArtwork(model, completeCallback) {
return datasource.artworks.save(model)
.always(completeCallback)
.fail(function (response) {
jAlert(resources.saveError);
})
.done(function (id) {
if (id) {
triggerArtworkCreatedEvent(id);
}
});
}
function triggerLoadEvent() {
var model = self.internalArtworkModel();
emitter.publish("load", {
artworkId: model.artworkId() || 0,
dhCategory: model.dhCategory() || "",
refNumber: model.refNumber() || "",
computedTitle: model.computedTitle() || "",
isForSale: model.isForSale
});
}
function triggerArtworkCreatedEvent(artworkId) {
emitter.publish("artwork-created", artworkId);
}
function triggerCategoryChangedEvent() {
emitter.publish("category-changed", {
name: self.internalArtworkModel().dhCategoryName(),
id: self.internalArtworkModel().dhCategoryId()
});
}
function triggerDeleteEvent(e, artworkId) {
emitter.publish("delete", artworkId);
}
function triggerUpdateEvent(data) {
var model = self.internalArtworkModel();
data.isCategoryChanged = model.initialCategoryId !== model.dhCategoryId();
emitter.publish("artwork-updated", data);
}
function showErrors() {
var model = self.internalArtworkModel();
if (model) {
model.errors.showAllMessages();
}
}
function resetModelBeforeDuplication() {
var model = self.internalArtworkModel();
model.refNumber("");
model.computedTitle("");
model.isOnDisplay(false);
model.isOnRestoration(false);
model.salesStatus("Not set");
model.creationDate("");
model.creatorName("");
model.isFramed(false);
model.framedDate("");
model.framedUserName("");
model.framedUserInitials("");
model.framedUserId(null);
model.locations(null);
model.isInsuranceComponent(false);
model.dateWebsiteWork("");
model.dateWebsiteReady("");
model.dateWebsiteUploaded("");
model.dateRemovedFromWebsite("");
model.collectionListing("");
model.salesStatusChangedDate("");
model.salesStatusChangerUserInitials("");
model.salesStatusChangerUserName("");
self.showCreationInformation(false);
}
function triggerBlanked(artworkId) {
emitter.publish("blanked", { artworkId: artworkId, flag: true });
}
(function () {
self.editCategoryModel.onChanged(function (e, categoryId) {
self.internalArtworkModel().dhCategoryId(categoryId);
triggerCategoryChangedEvent();
});
self.editCategoryModel.onCancel(function () {
if (self.isNewArtwork()) {
self.isNewArtwork(false);
app.router.back();
}
});
self.wipeArtworkModel.onDelete(triggerDeleteEvent);
self.wipeArtworkModel.onBlank(function (e, artworkId) {
self.loadArtworkDetails(artworkId);
triggerBlanked(artworkId);
});
})();
};
})(app);
它还使用了映射器：
(function (app, ko) {
app.namespace("mappers");
var s = app.urls.shared,
datasource = app.datasource;
var mapSettings = {
selectedMedium: {
create: function (options) {
return new ListModel({
isRemoteSource: true,
url: s.get('dictionaryUrl'),
listType: datasource.dictionaryTypes.get("medium"),
currentValue: options.data,
nobutton: true,
templateName: "textAreaTemplate"
});
}
},
artist: {
create: function (options) {
return new ListModel({
isRemoteSource: true,
url: s.get('dictionaryUrl'),
listType: datasource.dictionaryTypes.get("artist"),
currentValue: options.data,
onlyPreparedValues: false
});
}
},
manager: {
create: function (options) {
return new ListModel({
isRemoteSource: true,
url: s.get('dictionaryUrl'),
listType: datasource.dictionaryTypes.get("manager"),
currentValue: options.data,
onlyPreparedValues: false
});
}
},
managerStatus: {
create: function (options) {
return new ListModel({
isRemoteSource: true,
url: s.get('dictionaryUrl'),
listType: datasource.dictionaryTypes.get("managerStatus"),
currentValue: options.data,
onlyPreparedValues: false
});
}
},
selectedVolume: {
create: function (options) {
return new ListModel({
isRemoteSource: true,
url: s.get('dictionaryUrl'),
listType: datasource.dictionaryTypes.get("volume"),
currentValue: options.data,
onlyPreparedValues: false,
readonly: !options.parent.isArchiveProvenanceWriter(),
editable: options.parent.isArchiveProvenanceWriter()
});
}
},
salesStatus: {
create: function (options) {
var value = options.data || "Not set";
return ko.observable(value);
}
},
oldReferences: {
create: function (options) {
return ko.observable(options.data);
}
},
copy: ['defaultDhCategoryId', "canBeDeleted", "canBeBlanked", "isForSale"],
ignore: ["dimensions", "dimensionUnits", "selectedMediumTypes", "selectedSeries", "selectedSubSeries", "selectedAkaNames", "selectedWebSiteMediumTypes", 'selectedWebSiteCategoryIds', "locations", "hasInTransitLocations"]
},
unmapSettings = {
ignore: ["selectedMedium", "artist", "manager", "managerStatus", "mediumTypesModel", "dimensionModel", "seriesModel", "subSeriesModel", "akaModel", "webSiteMediumTypesModel", "webSiteCategoriesModel", "selectedVolume"]
},
map = function (json) {
var convertedObject = ko.utils.parseJson(json);
var model = ko.mapping.fromJS(convertedObject, mapSettings);
model.artworkStatusesModel = new ListModel({
isRemoteSource: false,
currentValue: convertedObject.selectedArtworkStatus,
data: convertedObject.artworkStatuses,
//data: filteredSalesStatuses,
onlyPreparedValues: true,
allowNull: false,
readonly: true
});
alert("mooo=" + model.artworkStatuses()[0].name());
alert("mooo=" + model.artworkStatuses()[1].name());
alert("mooo=" + model.artworkStatuses()[2].name());
//alert("mooo=" + model.artworkStatuses()[3].name());
//alert("mooo=" + model.artworkStatuses()[4].name());
model.dhCategoryName = ko.computed(function () {
var categories = model.dhCategories();
for (var i = 0; i < categories.length; i++) {
var category = categories[i];
if (category.id() == model.dhCategoryId()) {
return category.name();
}
}
return "";
});
model.initialCategoryId = convertedObject.dhCategoryId;
model.dimensionModel = new app.models.DimensionModel(convertedObject.dimensions);
ko.utils.arrayForEach(convertedObject.dimensionUnits, function (unit) {
model.dimensionModel.units.push(unit);
});
model.locations = ko.observable(convertedObject.locations ? {
archivedLocations: $.map(convertedObject.locations, function (elem) {
return elem.isArchived ? elem : null;
}),
activeLocations: $.map(convertedObject.locations, function (elem) {
return elem.isArchived ? null : elem;
}),
hasInTransitLocations: convertedObject.hasInTransitLocations
} : convertedObject.locations);
model.mediumTypesModel = new app.models.MultilistModel(convertedObject.selectedMediumTypes, { url: s.get("mediumTypesUrl") });
model.seriesModel = new app.models.MultilistModel(convertedObject.selectedSeries, { url: s.get("seriesUrl") });
model.subSeriesModel = new app.models.MultilistModel(convertedObject.selectedSubSeries, { url: s.get("subSeriesUrl") });
model.akaModel = new app.models.MultilistModel(convertedObject.selectedAkaNames, { url: s.get("akaUrl") });
model.webSiteMediumTypesModel = new app.models.MultilistModel(convertedObject.selectedWebSiteMediumTypes, { url: s.get("webSiteMediumTypeUrl") });
model.webSiteCategoriesModel = new app.models.MultilistModel(convertedObject.selectedWebSiteCategories, { url: s.get("webSiteCategoryUrl") });
model.isStudioStatusVisible = ko.computed(function () {
var foundStatuses = ko.utils.arrayFilter(model.artworkStatuses(), function (status) {
return status.id() == model.artworkStatusId();
});
var currentStatus = foundStatuses[0];
if (currentStatus) {
return currentStatus.name().toLowerCase() == "in progress";
}
return false;
});
addValidationOptions(model);
return model;
},
toJS = function (artwork) {
var result = ko.mapping.toJS(artwork, unmapSettings);
result.artist = artwork.artist.toJS();
result.manager = artwork.manager.toJS();
result.managerStatus = artwork.managerStatus.toJS();
result.selectedMedium = artwork.selectedMedium.toJS();
result.selectedVolume = artwork.selectedVolume.toJS();
result.dimensions = artwork.dimensionModel.toJS();
result.selectedMediumTypes = artwork.mediumTypesModel.toJS();
result.selectedSeries = artwork.seriesModel.toJS();
result.selectedSubSeries = artwork.subSeriesModel.toJS();
result.selectedAkaNames = artwork.akaModel.toJS();
result.selectedWebSiteMediumTypes = artwork.webSiteMediumTypesModel.toJS();
result.selectedWebSiteCategories = artwork.webSiteCategoriesModel.toJS();
return result;
};
function isValidationRequired(model) {
var artworkStatus = ko.utils.unwrapObservable(model.artworkStatusId);
var dhCategory = ko.utils.unwrapObservable(model.dhCategoryId);
return artworkStatus == app.global.dictionary.get("compiteArtworkStatus")
&& dhCategory != app.global.dictionary.get("ignoreDHCatigory");
}
function addValidationOptions(model) {
model.artworkStatusId.extend({ required: true });
model.title.extend({ required: true });
model.artist.selected.value.extend({ required: true });
model.startYear.extend({
lessEqualThan: {
params: model.endYear,
onlyIf: function () {
return (model.endYear() != undefined && model.endYear() != null);
},
message: 'From Date should be less or equal than a To Date'
}
});
model.endYear.extend({
required: {
params: true,
onlyIf: function () {
return isValidationRequired(model);
},
message: "To Date field is required"
}
});
model.selectedMedium.selected.value.extend({
required: {
params: true,
onlyIf: function () {
return isValidationRequired(model);
},
message: "Medium is required"
}
});
model.mediumTypesModel.hasValue.extend({
equal: {
params: true,
onlyIf: function () {
return isValidationRequired(model);
},
message: "Medium Type is required"
}
});
model.akaModel.hasValue.extend({
equal: {
params: true,
onlyIf: function () {
return isValidationRequired(model);
},
message: "Aka is required"
}
});
model.isInsuranceComponent.extend({
equal: {
params: true,
onlyIf: function () {
return isValidationRequired(model);
},
message: "At least 1 Insurance component should be chosen"
}
});
model.dimensionModel.hasDimensions.extend({
equal: {
params: true,
onlyIf: function () {
return isValidationRequired(model);
},
message: "The Dimension fields should be filled"
}
});
model.errors = ko.validation.group(model, { deep: true });
}
app.mappers.fabrication = {
settings: mapSettings,
map: map,
toJS: toJS
};
})(app, ko);
我收到提醒的时候，这些项目的顺序是正确的，所以它们正在某个地方进行排序，但无法找到位置？！
我希望有人可以提供帮助吗？
非常感谢。
非常感谢， 大卫。