How to load different options in AG-Grid select dropdown ,based on other cell value in the same row with Angular 6?

Question

I am using the following code in the Column Definition :

 { headerName: 'Part', field: 'part', 
    cellStyle: {'background-color': 'cyan'}, editable: true, 
    cellEditor:'agSelectCellEditor', cellEditorParams: 

I have other column in the grid ex-

   { headerName: 'Colour', field: 'colour', 
    cellStyle: {'background-color': 'cyan'}, editable: true, 
    cellEditor:'agSelectCellEditor', cellEditorParams: function(params) { 
    var selectedPart = params.data.type; if (selectedPart==='R&S') { 
    return { values: this.partTypeListRS }; } else if(selectedPart==='WiFi') 
    { return { values: this.partTypeListWifi }; } else 
    if(selectedPart==='Other') { return { values: this.partTypeListOther }; 
    }}},
    }

I am getting the error cannot read property this.partTypeListRS of undefined ,if I click on a row where selectedPart==='R&S' condition is satisfied and respectively for all the other conditions .

Answer 1

Instead of function(params) ,I used the arrow function (params)=> , then I was able to access this inside CellEditorParams