Use rowSelected to set the initial selected rows in an Angular Kendo UI grid

Within my Kendo UI Grid, the ability to select individual rows is made possible by clicking a checkbox that adds them to an array. However, my goal is to initially set selected rows based on whether or not the dataItem for each row exists in a specified array known as selectedAccounts.

I attempted using

[rowSelected]="isRowSelected"
, but unfortunately, this method did not allow me to toggle the selection checkbox.

The key requirement is to establish the selected state at the start and have the flexibility to modify the selection when necessary. It's important to mention that I encounter no issues when starting with an empty selectedAccounts array.

For reference, you can find a StackBlitz example here.

Answer №1

After realizing that I had everything set up correctly, I discovered an issue with how I was utilizing isRowSelected in the typescript file. Originally, my code looked like this:

public isRowSelected = (e: RowArgs) => this.selectedAccounts.indexOf(e.dataItem) >= 0;}

This implementation always returned false, even though selectedAccounts was being displayed correctly.

By making the following adjustments, I was able to properly access and manipulate selectedAccounts, allowing me to toggle checkboxes without encountering any additional issues:

public isRowSelected = (e: RowArgs) => { 
  return this.selectedAccounts.find(f => e.dataItem.accountId === f.accountId) ? true : false;
}

I trust that this explanation will be beneficial to others facing a similar challenge. I have updated the stackblitz to showcase the correct code.

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