title: How to disable ion-select using typescript. ionic 2
body: <p>I can disable ion-select using disable attribute like the following:</p>
  
  <pre><code>&lt;ion-item&gt;       
        &lt;ion-label stacked&gt;Property Type&lt;/ion-label&gt;
            &lt;ion-select [(ngModel)]="propType" (ionChange)="ionChanger()" disabled="true" &gt;
                &lt;ion-option value="{{ptype}}" *ngFor="let ptype of PropTypeArray"&gt;{{ptype}}&lt;/ion-option&gt;                 
            &lt;/ion-select&gt;
    &lt;/ion-item&gt;
  </code></pre>
  
  <p>How can i disable from typescript file? I tried the following command but no luck</p>
  
  <p>In my type script file</p>
  
  <pre><code>  disableSelector:boolean
  
      constructor(){
         this.disableSelector = true;
      }
  </code></pre>
  
  <p>here is in the html file</p>
  
  <pre><code>disabled = "disableSelector"
  </code></pre>
  
  <p>totally cannot work at all</p>
  
  <p>best Rgds,
  frog</p>