MATLAB app designer too many output arguments

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I wrote an app for particle tracking. Data is stored in a Excel datasheet.
I would like to create a "calculate Diffusion Coefficient" button and the Row 1, Column 14 data will displayed on the diffusion Coefficient edit field. However, when I used the following code, it show the "too many output arguments" and I searched and still don't know how to solve it. Could anyone helped me solve this please. Appreciate it a lot.
% Button pushed function: CalculateDiffusioncoefficientButton
function CalculateDiffusioncoefficientButtonPushed(app, event)
dataset = xlsread('modifiedDataset.xlsx','Sheet1')
app.DiffusionCoefficientmm2sEditFieldValueChanged.Value = dataset(1,14)
I even tried add a private property but it still doesn't work.
% Button pushed function: CalculateDiffusioncoefficientButton
function CalculateDiffusioncoefficientButtonPushed(app, event)
dataset = xlsread('modifiedDataset.xlsx','Sheet1')
app.DifCoeNum = dataset(1,14)
app.DiffusionCoefficientmm2sEditFieldValueChanged.Value = app.DifCoeNum
  7 Comments
Chun Fai Leung
Chun Fai Leung on 28 Jul 2022
Thank Sir dpb for the help as well, problem solved. I input the incorrect name of edit field, how dumb I am. Sorry.

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Accepted Answer

Dennis
Dennis on 28 Jul 2022
There are 2 errors in this line:
app.DiffusionCoefficientmm2sEditFieldValueChanged.Value = app.DifCoeNum
First you got the name of your edit field and its callback mixed up.
Second your edit field is not numeric, so you need to convert app.DifCoeNum to a string.
This should work:
app.DiffusionCoefficientmm2sEditField.Value =num2str(app.DifCoeNum);
  1 Comment
Chun Fai Leung
Chun Fai Leung on 28 Jul 2022
Oh Sir. Thank you so much. I did try using num2str before but it still pop up the "too many output arguments".
However, the main problem is that I input the incorrect edit field name. After I changed it back to the correct name of edit field, it works perfect.

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