Issue with WjFlexGridDetail.set [as rowHasDetail] in Nested Grid Angular 8

Posted by: r.kondaru on 15 October 2020, 11:36 pm EST

  • Posted 15 October 2020, 11:36 pm EST

    Hi Team,

    I have implemented the nested grid by using this(https://www.grapecity.com/wijmo/demos/Grid/Rows/RowDetail/Overview/angular) and got the below error, please help me to resolve this.

    error.service.ts:18 an error occurred here broo Error: ** Assertion failed in Wijmo: Function expected. Error
    at assert (vendor.js:214267)
    at asFunction (vendor.js:214267)
    at WjFlexGridDetail.set [as rowHasDetail] (vendor.js:213898)
    at updateProp (vendor.js:73059)
    at checkAndUpdateDirectiveInline (vendor.js:72826)
    at checkAndUpdateNodeInline (vendor.js:81251)
    at checkAndUpdateNode (vendor.js:81213)
    at debugCheckAndUpdateNode (vendor.js:81847)
    at debugCheckDirectivesFn (vendor.js:81807)
    at Object.eval [as updateDirectives] (ng:///ToolsModule/BatchUserMaintenanceComponent.ngfactory.js:632)
    at viewWrappedDebugError (vendor.js:71379)
    at callWithDebugContext (vendor.js:82075)
    at Object.debugCheckAndUpdateView [as checkAndUpdateView] (vendor.js:81767)
    at ViewRef_.push../node_modules/@angular/core/fesm5/core.js.ViewRef_.detectChanges (vendor.js:72442)
    at ApplicationRef.push../node_modules/@angular/core/fesm5/core.js.ApplicationRef.tick (vendor.js:78865)
    at vendor.js:78754
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (polyfills.js:18532)
    at Object.onInvoke (vendor.js:78012)
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (polyfills.js:18531)
    at Zone.push../node_modules/zone.js/dist/zone.js.Zone.run (polyfills.js:18291)

    Thanks,
    Raman.
  • Replied 18 October 2020, 6:30 pm EST

    Hi Raman,

    You need to provide a function to the rowHasDetail property. The function will take the current row as the argument and will return a boolean value based on whether the row has detail or not.

    https://www.grapecity.com/wijmo/api/classes/wijmo_grid_detail.flexgriddetailprovider.html#rowhasdetail

    In the demo link, the evenRowHasDetail variable checks whether the rowHasDetail should have a value and then assigns the rowHasDetailFn as the value of rowHasDetail.

    Regards,
    Ashwin
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