columnSummary Question

Tags: #<Tag:0x00007f8b23b07790>
#1

Hello Im trying to set up my cols sums to write out to a final total row. I want to take a sub total line that will be dynamic and add those sub totals on the final total line.

how can I accomplish this with the columnSummary setting.

I want to total the 2 blue lines on the final yellow line. The blue lines are part of a dynamic group so there could be many, or just one. Is this possible?
14%20PM

here is a code snippet that Im using right now.
for (let i = 0; i < nestedRowsCache.levels[1].length; i++) {
if (nestedRowsCache.levels[1][i].RT !== ‘Total3’)
continue

            console.log(nestedRowsCache.levels[1][i])
            console.log(getRowIndex(nestedRowsCache.levels[0][nestedRowsCache.levels[0].length -1]))

            for (let x = colOffset; x < this.hot.countCols(); x++) {
                grandTotalEndpoint = {};

                grandTotalEndpoint.type = 'sum';
                grandTotalEndpoint.destinationRow = getRowIndex(nestedRowsCache.levels[0][nestedRowsCache.levels[0].length - 1]);
                grandTotalEndpoint.destinationColumn = x;
                grandTotalEndpoint.ranges = [];
                //grandTotalEndpoint.customFunction = (endpoint) => {
                //    console.log(nestedRowsCache.levels[1][i])
                //    return 10;
                //}
                console.log(nestedRowsCache.levels[1][i])
                grandTotalEndpoint.ranges.push([
                    [getRowIndex(nestedRowsCache.levels[1][i])]
                ]);

                endpoints.push(grandTotalEndpoint);
                headCountTempEndpoint = null;
            }
        }
#2

Hey @damien1

Here’s a demo based on the one from the docs but with the total SUM attached https://jsfiddle.net/zu7xgr06/

I just pushed another element to the endpoints array and added an object to the main data to hold the value.

Do you need anything more than that?

#3

This doesn’t quite work for me, your solution is only summing the values in white, whereas I only want to sum the values in blue.

33%20AM

my data is structured as this
[
{data: ‘somval’, __children[{data: ‘vals’}]},
{data: ‘Grand Totals’} //no children
]

#4

In this case I think that the Formulas might be a better pick. Have you tried that?

#5

I have not, can you expand on how I would use that?

#6

The Formulas plugin is base to SUM some specific cells. Here https://handsontable.com/docs/javascript-data-grid/formula-calculation/ you can read more about it.

To enable formulas you need to add this line to the initialization (or update) settings

formulas: { engine: HyperFormula},

and import the HyperFormula if you use wrappers.

Then just pass the formula known from Excel to the cell. In this case if you want to Sum row no1 and 5 it will be value: '=A1 + A5'. And then when data changes, rows are added or deleted you just update that coordinates with setDataAtCell() in corresponding hooks like

#7