Find the calculated values within an Angular Material table

I came across this fantastic example of an Angular Material table with checkboxes that fits perfectly with what I want to implement in my application. However, I am facing a challenge - I need to calculate the total value of the checked rows. Specifically, I would like to find the total sum of the Weight column in the current example.

Is it feasible to achieve this functionality? If so, what modifications should I make to the code in order to accomplish this task? I have searched online but couldn't locate any similar examples...

angulartypescriptangular-material

Answer №1

After reviewing the example you provided, you can retrieve the selected or checked items from Material Table by using this line of code:

this.selection.selected

This will return the list of checked items in the table.

To calculate the total weight, you can utilize the following code snippet with the help of reduce. Simply add the code below to the function where you wish to calculate the total weight:

let totalWeight = this.selection.selected.reduce((acc, val) => acc + val.weight, 0)

If you have any further questions, feel free to reach out.

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