殘疾人專用選項與ngOptions

Question

我有一個選擇下拉，就像這樣：

<select ng-model="expressionClause.field" ng-options="o.fullPropertyName as o.displayName for o in model.discountExpressionProperties" ng-change="expressionClause.value = ''" required></select>

是否有可能增加對其中的兩項渲染選項的「禁用」屬性，而無需修改控制器？而不使用ngRepeat而不是ngOptions？

我已經試過這樣：

<select ng-model="expressionClause.field" ng-options="o.fullPropertyName as o.displayName disable when o.displayName == 'Product ID' for o in model.discountExpressionProperties" ng-change="expressionClause.value = ''" required></select>

但我不認爲我正確地使用它，因爲我得到一個語法錯誤：

Error: [$parse:syntax] Syntax Error: Token 'disable' is an unexpected token at column 15 of the expression [o.displayName disable when o.displayName == 'Product ID'] starting at [disable when o.displayName == 'Product ID'].

LE：AngularJS V1 .3.20

Answer 1

Angular 1.4.0-beta.5的發行說明：

"ngOptions: add support for disabling an option (da9eac86, #638, #11017)" 

嘗試更新您的Angular版本。