App Designer User edit/update table

Hello,

I am new to app designer so forgive me for asking silly questions:

I have loaded an cell array data from excel into my app design table:

and I would like to know how can a user update the value in cell?

I have created a call back function below that It's supposed to responde to user commond whenever the table is clicked

function CBICDispCellEdit(app, event)

indices = event.Indices;

newData = event.NewData;

app.table.ColumnEditable=[false,false,false,false,false,false,true];

app.table.Cmd=categorical({'open';'close'});

But nothing happened when I clicked on the table...

Is there anything I am missing here? Thanks

Answer 1

[Kojiro Saito]

CellEditCallback is triggered when the value of cell has changed. If you want to trigger an event when clicking the cell of table, you need to add callback of CellSelectionCallback.

Updated on 2020 Jan 6th.

In order to make drop down list in your Cmd column of the table, first you need to change import options of your excel file.

function LoadTableButtonPushed(app, event)
    opts = detectImportOptions('test1.xlsx'); % For importing Cmd column as char not double
    opts.VariableTypes{8} = 'string'; % For importing Cmd column as string
    
    t = readtable('test1.xlsx', opts);
    app.Table1.Data = t;
    app.Table1.ColumnName = t.Properties.VariableNames;
end

And here is a code to make Cmd column as categorical.

function Table1CellSelection(app, event)
    app.UITable.Data.Cmd = categorical(app.UITable.Data.Cmd, {'open', 'close'});
end

Screenshot is as the follows.

[ted yao]

Thanks,

I have changed it to cellselection but I am still having trobule to get the code to wok.

Let me attach my code and excel file,

After loading the file I am trying to change the value in column 'cmd'. (Using a drop down list, categorical data with 'open' or 'close' selection)

Could you please show me how to do this? Thank you.

Regards,

Ted

[Kojiro Saito]

@Ted

I've updated my previous answer.

Answer 2

[John K. George]

Hi Kojiro,

I'm trying to implement your solution after reading an excel file. Please see attached. I have taken a slightly different approach due to my contraints but I'm hoping I can still use your implementation - w/modification. thx.

John

[John K. George]

What am I missing? The dropdowns are still not working when I run from AppDesigner. I can only highlight the column values - no dropdowns.

[Kojiro Saito]

@John K. George

Could you post your question in a new thread, please?