角度 - 在搜索中粘贴 ng 选择不起作用

如何解决角度 - 在搜索中粘贴 ng 选择不起作用

我尝试在项目 angular5 中应用搜索回调 ng select 但是,搜索正在工作,但是当我在 select 中应用复制粘贴字符串时,第一次不起作用 代码 HTML

     <ng-select [items]="listRequesters" class="w-100" [loading]="loadingRequester" bindLabel="name"
                             [virtualScroll]="true" bindValue="id" (scrollToEnd)="getListRequesters()" 
                             [ngModel]="selectedRequester" name="coreUser" [searchFn]="searchRequesters" [clearable]="false"  
                             #coreUser="ngModel" (click)="setMarginRequester(coreUser.value)" typeToSearchText="{{'typeSearchText'|translate}}" 
                             (close)="setMarginRequester(coreUser.value)" dropdownPosition="bottom" [clearSearchOnAdd]="true"
                             ngModel placeholder="{{'select'|translate}}.." (selectionChanges)="validateFirstStep('and')" required>
                             <ng-template ng-option-tmp let-requester="item" let-search="searchTerm">
                                <div [ngOptionHighlight]="search" class="text-uppercase">
                                   {{ requester.name }}
                                </div>
                             </ng-template>

代码 ts:

     setMarginRequester(value) {
        const requesters = Object.assign([],this.requestersInit);
        requesters.forEach(element => {
            if (this.listRequesters.filter(x => x.id == element.id).length == 0) {
                this.listRequesters.push(element);
            }
        });        
        this.listRequesters = [...this.listRequesters];
        this.listRequesters.sort(this.compare);
    }

    searchRequesters(term: string,item) {
        term = term.toLowerCase();
        return item.name.toLowerCase().indexOf(term) > -1 || item.name.toLowerCase() === term;       
    }
    getListRequesters() {
       // this.listRequesters = [];
        this.indexRequester = this.indexRequester + this.limit;
        if (this.poPurchaseOrder.coreAgency && this.poPurchaseOrder.coreAgency.coreUserAdditionals) {
            Object.values(this.poPurchaseOrder.coreAgency.coreUserAdditionals).forEach((element,key) => {
                this.loadingRequester = true;
                if (this.listRequesters.length <= (this.listRequesters.length + this.limit)) {
                    this.listRequesters.push(element);
                }

            });
        }
        this.listRequesters = this.commonService.removeDuplicateObjectFromArray(this.listRequesters);
        this.listRequesters.forEach(element => {
            element['name'] = element.firstName + ' ' + element.lastName;
        });
        this.listRequesters.sort(this.compare);
        this.listRequesters = [...this.listRequesters];
        this.loadingRequester = false;
    }

错误是当我第一次粘贴字符串时搜索不起作用,但是当我删除搜索字符串并粘贴时,否则搜索正在工作......

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