Angular Dropdown directive doesn't work

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遥遥无期
遥遥无期 2021-01-05 20:10

I am using Angular 6.0.5 alongside with Bootstrap 4.1.1 and I added a directive for dropdowns. But I can\'t make it work in no way. I have seen a lot of similar problems her

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  •  迷失自我
    2021-01-05 20:23

    In order to work drop down in bootstrap you need to add show class in two places which you can achieve by get the reference to isOpen variable using angular template ref

    If you want to get the reference to directives you need to export the directive first

    @Directive({
      selector: '[appDropDown]',
    exportAs:'appDropDown'
    })
    

    Then you can use the template ref method to achive dropdown

    
    

    I have include example here check out: https://stackblitz.com/edit/angular-h9rgmn

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