App Designer UITable row names change once writing the output to the UITable

Hi All

for a UITable I have create in app designer , I have also defined names for each rows :

R1,

R2,

R3,...

but once I finish the calculations and want to write these values to the UITable, this names change to numbers suddenly !!!

1,

2,

3,

Answer 1

[Adam Danz]

Option 1: Create a table with row names and load the table into a uitable.

T = array2table(rand(3,2),'VariableNames',{'A','B'},'RowNames',{'i','ii','iii'});

uif = uifigure();
uitable(uif, 'Data', T)

Option 2: Create the uitable directly

uif = uifigure();
T = uitable(uif, 'Data',rand(3,2),'ColumnName',{'A','B'},'RowName',{'i','ii','iii'});

To update an existing app

app.UITable.Data = rand(3,2);   % update data
app.UITable.ColumnName = {'A','B'};
app.UITable.RowName = {'i','ii','iii'};

[farzad]

thank you , shall you please write it exactly how it is ? what are the dots ? and if I have 6 rows, how do I put them ? I tried to write

uitable(uifigure,'RowName',{'R1';'R2';'R3';'R4';'R5';'R6';})

But nothing is resolved

[Adam Danz]

what are the dots?

That's where you have to fill in your inputs.

@farzad, you've asked an impressive 186 questions. It's time you try to figure some of this simple stuff out.

All UITable properties are described here (look at RowName) https://www.mathworks.com/help/matlab/ref/matlab.ui.control.tableappd-properties.html

Examples of UITables are here https://www.mathworks.com/help/matlab/ref/uitable.html

Give it a try and if it doesn't work, share your line of code and I'll help fix it.

[farzad]

Dear Adam, thank you for the links, my problem with MATLAB help is that sometimes it's very brief or the Example doesn't show exactly what should happen in reality.

for me this from the help :

Example: uit = uitable(uifigure,'RowName',{'Name';'Number'},'Data',{'Bob';5}) 

is different from what you wrote :

uitable(. . ., 'RowNames', T.Properties.RowNames)

and I used based on the first example in help and it should Exactly work:

uitable(uifigure,'RowName',{'R1';'R2';'R3';'R4';'R5';'R6'})

and it's not working and I don't know why there are two formats of writing it

also I tried this and it did not work

uitable({'R1';'R2';'R3';'R4';'R5';'R6'}, 'RowNames', T.Properties.RowNames)

and not even this one is working

uitable(['R1';'R2';'R3';'R4';'R5';'R6'], 'RowNames', T.Properties.RowNames)

[Adam Danz]

"my problem with MATLAB help is that sometimes it's very brief "

That's sometimes intentional so that the person asking the question has to think about the problem and learn from it. I've updated my answer with two options. Please take some time to think about what each option is doing.

[farzad]

Dear Adams, I guess you are refering to GUI and not app designer not ? cause in app designer I do not need to create the table with your suggested command. I don't have uifigure() definition in app designer, but only the UITable function already defined with its handle

[Adam Danz]

Yes, my demos create the UITable within a uifgure rather than app designer because I can't create an app in a simple demo. I'll update my answer to show you how to adapt this to app designer but I think you could have figured it out.

[farzad]

I had defined them in the right side pane of the app designer Design View pane, the column names remain after I write to the table but the Row names change from the Row names to numbers, Why should it work like that ???

[farzad]

Thank you very much for the help

[Adam Danz]

Is the data you're loading into the uitable a table or something different (matrix, cell, etc)? If it's a table, does it already have row names?

Did my answer solve the problem or are you just asking why the row names change when you load more data?

Also, what version of Matlab are you using?

By the way, I usually don't use the Design View pane to label the column and row names. I just do it programmatically from within the code.

[farzad]

It was my mistake, yes it helped. Somewhere in my code I had app.uotable ='numbered' and it was creating that problem

[Adam Danz]

Good find! Although, this line from my answer should have fixed that unless the line you described came afterwards.

app.UITable.RowName = {'i','ii','iii'};

[farzad]

Exactly ! I tried it as well, I think I learnt well from this question ,thank you

[Adam Danz]

Glad to hear it.