# [Editable uitable] Calculate result based on user input

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Filipe on 6 Jan 2021
Commented: Filipe on 6 Jan 2021
Hi there,
I have created a uitable in GUI. Consists on a nx3 table. The first two columns (A,B) are user input. The third should be the result of a computation (C=A*B). How can I manage to achieve this? This is my current code, in which I initialy input random values.
Thanks a lot,
Filipe
function MyTable
f = figure('Position',[300 300 3000 400]);
% Column names and column format
columnname = {'A','B','C'};
columnformat = {'bank','bank','bank'};
% Define the initial displayed data
d = {randi([0 10],1,1) randi([0 10],1,1) randi([0 10],1,1);}; % I guess this is my first mistake because the third column should be already the result of a computation but I don't know how to do it
% Create the uitable
hTable = uitable(f,'Position',[0 0 3000 400],'Data', d,...
'ColumnName', columnname,...
'ColumnFormat', columnformat,...
'ColumnEditable', [true true false],... % I set the last to false since it is not supposed to be editable.
'RowName',[]);
get(hTable,'Data')
end
##### 2 CommentsShowHide 1 older comment
Filipe on 6 Jan 2021
Thanks for your answer Walter. I was already able to solve the first part fo my problem. However, I'm quite new to GUI's and the uitable function. Could you tell me how to implement a CellEditCallbackFcn parameter in the uitable()? Maybe with a simple example? Thanks once again,
Filipe

Maximilian Schönau on 6 Jan 2021
This will create a subsection in your app code. Whenever a cell is edited by the user, this function will run.
So you can use this Callback to calculate the result of the table inputs and update the table accordingly.
Filipe on 6 Jan 2021
Thanks a lot. I think it's solved!

R2020b

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