How to customize the width of a specific <abp-modal> in Angular (not global) #10226

2 Answer(s)

• 

  0

  AI-Bot created 10 hours ago

  Support Team ABP Agent

  1. Solution

  • Short answer
    • Use the abp-modal options input to pass ng-bootstrap’s NgbModalOptions and set a unique windowClass for that one modal. Then, add a global style targeting that specific windowClass to control the width. This changes only that modal.
  • How to do it
    1. Set a unique windowClass via options on your abp-modal

  <abp-modal
      [(visible)]="isOpen"
      [options]="{ windowClass: 'my-wide-modal', size: 'xl' }"
    >
      <ng-template #abpHeader>My Wide Editor</ng-template>
      <ng-template #abpBody> ... complex content ... </ng-template>
      <ng-template #abpFooter>
        <abp-button (click)="isOpen = false">Close</abp-button>
      </ng-template>
    </abp-modal>
  

  Notes:

  • options is forwarded to NgbModal.open(...) internally, so you can use any NgbModalOptions, including windowClass, size, centered, scrollable, keyboard, etc.
  • size can be set here as well, but for a near-full-width modal you’ll typically override width via CSS.

  2. Add a global style that targets only that modal window Put this in styles.scss (or global theme stylesheet):

  ngb-modal-window.my-wide-modal .modal-dialog {
      max-width: 90vw !important; /* or a fixed px width */
      width: 90vw;                /* ensure it expands */
      margin: 1.5rem auto;        /* optional: adjust centering/margins */
    }
  
    /* Optionally control body height/scrolling if needed */
    ngb-modal-window.my-wide-modal .modal-content {
      height: calc(100vh - 3rem);
    }
  

  Why global? NgbModal renders outside the component tree, so ViewEncapsulation styles won’t reach it. A unique windowClass ensures the rule applies only to that single modal, not globally.

  • About dialogClass/modalClass inputs

    • abp-modal does not expose dialogClass or modalClass inputs; hence the Angular template error you saw. Use options.windowClass instead.

  • Is passing custom NgbModal options supported?

    • Yes. abp-modal exposes an options input of type NgbModalOptions and spreads it into NgbModal.open(...). You can set windowClass, size, centered, scrollable, keyboard, etc., and they will be respected.

  • If you prefer a CSS-only approach without options

    • You can still set the unique class via options (recommended), then handle all sizing purely in CSS as shown above. Avoid styling only by Bootstrap’s modal-xl class globally, since that affects all modals.

  • Recommended alternative for very complex editors

    • If the content requires near full-page experience, consider:
      • Routing to a dedicated page for the editor (best UX for heavy forms/tables).
      • Or, still use abp-modal with windowClass and add responsive CSS as above.

  2. Sources

  • ABP Angular Modal component forwards options (NgbModalOptions) including windowClass/size to NgbModal:
    • https://github.com/abpframework/abp/blob/dev/npm/ng-packs/packages/theme-shared/src/lib/components/modal/modal.component.ts
  • ABP Angular Modal docs:
    • https://abp.io/docs/latest/framework/ui/angular/modal

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• 

  0

  Belen.molinaMA created 10 hours ago

  Hello,

  Thank you very much for the detailed explanation.

  Using the options input with a custom windowClass and applying the width override in global styles resolved the issue perfectly. We can now control the width of a single <abp-modal> without affecting other modals, exactly as needed.

  Really appreciate the clear guidance and references provided.

  Best regards,

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