@codehint-ng/tree-table

A simple component to display tree-hierarchically data in table.

Usage

For example: You have some tree data like this:

    interface CustomItem {
        id: number;
        parentId: number;
        data1: string;
        data2: string;
        data3: string;
    }
    
    myCustomData: CustomItem[] = [...];

1. Register the @codehint-ng/tree-table in your module:

    import { CngTreeTableModule } from '@codehint-ng/tree-table';
   
    @NgModule({
    imports: [
        CngTreeTableModule
        ...
    ],
    ...

2. Then define displaying cng-tree-table in your component template:

    <cng-tree-table
        [columns]="[
            {title: 'Column1', template: tmplColumn1},
            {title: 'Column2', template: tmplColumn2},
            {title: 'Column3', template: tmplColumn3}
        ]"
    >
    </cng-tree-table>
   
    <ng-template #tmplColumn1 let-treeTableItem>
        {{ treeTableItem.data.data1 }}
    </ng-template>
   
    <ng-template #tmplColumn2 let-treeTableItem>
        {{ treeTableItem.data.data2 }}
    </ng-template>
   
    <ng-template #tmplColumn3 let-treeTableItem>
        {{ treeTableItem.data.data3 }}
    </ng-template>

3. Prepare your custom tree-hierarchically data for passing it into cng-tree-table component:

   So you need to map it into structure TreeTableItem that cng-tree-table can display, like this:

    function customDataToTreeTableItems(customData: CustomItem[])
            : TreeTableItem<CustomItem>[] {
               
        const treeTableItems = (customData || []).map((customItem: CustomItem) => {
            const item: TreeTableItem<CustomItem> = {
                id: customItem.id,
                parentId: customItem.parentId || 0,
                data: customItem
            };
            return item;
        });
        return treeTableItems;
    }

4. Append your treeTableItems into cng-tree-table:

    myCustomData: CustomItem[] = [...];
    @ViewChild(CngTreeTableComponent, {static: true}) cngTreeTable: CngTreeTableComponent<CustomItem>;
       
    ngOnInit() {
        const treeTableItems = customDataToTreeTableItems(this.myCustomData);
        this.cngTreeTable.appendItems(treeTableItems);
        ....
    }