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145769 Jul 5,2019 12:56 PM UTC Jul 9,2019 05:23 PM UTC Angular 1
Tags: ejGantt
Tomasz Tomczykiewicz
Asked On July 5, 2019 12:56 PM UTC

Do you have a control that sums hours in columns with tree view? Something like this:https://www.youtube.com/watch?v=9sVa_bkYpy0&feature=youtu.be&hd=1
Best regards,
Tomasz Tomczykiewicz

Pooja Priya Krishna Moorthy [Syncfusion]
Replied On July 9, 2019 05:23 PM UTC

Hi Tomasz, 
We can sum all the child values and display in a custom column of parent row by using queryCellInfo event. We can update the custom column values on CRUD operations by using actionComplete event. 
Please find the code example below. 
<ej-gantt id="GanttControl" [dataSource]="ganttData" (actionComplete)="actionComplete($event)" 
    (queryCellInfo) = "queryCellInfo($event)" > 
  export class AppComponent { 
    public totalRecords: any = []; 
    constructor() { 
    queryCellInfo(args) { 
        if ((args.column.field == "Totalvalue") && args.data.hasChildRecords == true) { 
            var records = this.getChildRecords(args.data, args.model.updatedRecords); 
            var updated_value = ej.sum(records, "Totalvalue"); 
            args.cellValue = updated_value; 
            this.totalRecords = []; 
    actionComplete(args) { 
        if (args.requestType == "recordUpdate") { 
        if (args.requestType == "save" && args.addedRecord) { 
        if (args.requestType == "delete") { 
    public getChildRecords(parentRecord, updatedRecords): any { 
        var recordLength = updatedRecords.length, record; 
        for (var length = 0; length < recordLength; length++) { 
            record = updatedRecords[length]; 
            if (parentRecord == record.parentItem) { 
                if (record.hasChildRecords) 
                    this.getChildRecords(record, updatedRecords); 
        return this.totalRecords; 
    public update(parentItem) { 
        var totValue = 0; 
        if (parentItem != null) { 
            let childRecords = parentItem.childRecords, 
                len = childRecords.length; 
            for (var i = 0; i < len; i++) { 
                var totalvalue = parentItem.childRecords[i].Totalvalue; 
                if (totalvalue) 
                    totValue = totValue + totalvalue; 
                parentItem.Totalvalue = totValue; 
            let proxy = $('#GanttControl').ejGantt('instance'); 
            let treeGridObj = proxy._$treegridHelper.data("ejTreeGrid"); 
            return this.update(parentItem.parentItem); 
Please find the below sample link. 
Pooja Priya K 


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