p-dropdown(primeng) optionDisabled 属性不起作用,无法禁用下拉选项

问题描述 投票:0回答:1
 <p-dropdown [options]="cities"  
        [(ngModel)]="selectedCity"  
        optionLabel="label" 
        optionDisabled="IsActive"></p-dropdown> 


   this.cities = [ 
        { label: 'India', value: 'IND', IsActive: false }, 
        { label: 'Rome', value: 'RM', IsActive: true }, 
        { label: 'London', value: 'LDN', IsActive: false }, 
        { label: 'Istanbul', value: 'IST', IsActive: true }, 
        { label: 'Paris', value: 'PRS', IsActive: false }, 
    ];

我希望 IsActive false 选项显示为灰色,但 optionDisabled 未设置它。 有没有我遗漏的属性或代码??

css angular primeng-dropdowns
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