ICellRendererAngularComp + ICellRendererParams: DOMException: Failed to execute ‘removeChild’ on ‘Node’: The node to be removed is no longer a child of this node. Perhaps it was moved in a ‘blur’ event handler?

I recently encountered a collision between Angular and ag-grid, where multiple – i.e., two – attempts were being made to remove the same child node each time a cell renderer underwent a change, one attempt made by ag-grid and the second, failing attempt made by Angular change detection event that attempted a re-render via DefaultDomRenderer2. Specifically, these competing events occurred when calling ICellRendererParams.setValue() from one of my ICellRendererAngularComp methods. Even more specifically, it only occurred for rows 12 and beyond of the grid; a change to rows 1-11 did not trigger the re-render by Angular.

To resolve this, I implemented ICellRendererAngularComp.refresh(), like such:

  refresh(params: ICellRendererParams): boolean {
    this.params = params;
    return false;

to have ag-grid perform a refresh of the cell renderer instead of a destroy/re-init, and rely on Angular alone perform the removal of the child node. I then invoke the ‘refresh’ method immediately after calling ICellRendererParams.setValue().

This was not straightforward to track down.

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