Add multi-row data to App Designer Text Area

Hi,

I wish to add multi-row data to App Designer Text Area. As the data to be shown is comprised from different types (a, d and sale), how can I merge them into one data type (which?) and to populate the Text area?

Thanks a lot.

Code:

T = table([1;2;3], [4;5;6])
a = table2array(T)
d="D=1" 
sale="SALE="

[dpb]

Looks a lot more appropriate place to use a table than a text object--it will be a pain to encode/decode as you're finding out just thinking about it...show us what you think you want the display to look like and how does the value "1" of "D" relate to the array T?

[John Sal]

Maybe this code will help

clc;
clear all;
T1 = table([1;2;3], [4;5;6])
T2=table("D=1","");
T3=table("SALE=","");
Tout = [T1;T2;T3]

The output should be like this:

1 4
2 5
3 6
D=1
SALE= 

[dpb]

I'm more confused than ever by that...what are you/the user going to do with this in this format?

Knowing this must be minimal data for posting a question, what's the real data look like?

You can convert everything to text and make it look like that in a text control, but it will be painful to do anything with, particularly if the user is allowed to make changes and then you have to try to parse the new data.

[John Sal]

I do not know how to populate muiltilines in the Text area but furthermore how can I do it with mixed data types (table and several strings). Based on your first comment I thought that converting everything into table will ease.

This is the real data I wish to add is:

T = table([1;2;3], [4;5;6])
d="D=1" 
sale="SALE="

The output in the text area should be like this:

1 4
2 5
3 6
D=1
SALE=

Thanks

Answer 1

[dpb]

You can do it by putting every record into a new line in a string array, but it will be a pain to deal with.

T=join(string(reshape(1:6,[],2))," ");
d="D=1";
sale="SALE=";
app.textarea.Value=[T;d;sale];

but it still seems most bizarre way to present the data to the user--but, granted, we don't know the whole story.

Answer 2

[Ali razi]

Hi,

Not an elegent way but I hope it works for you

T1 = table([1;2;3], [4;5;6])
T1 = table2array(T1);
T1 = num2str(T1)
T2= "D=1";
T3="SALE=";
app.yourTextArea.Value = ([T1; T2; T3]);

[Asi]

Due to curiosity, I was running the code below which I changed the table content:

clc;
clear all;
close all;

T1 = table([3;2;7;6], [9;4;5;0]);
T1 = join(string(reshape(1:numel(T1),[],2))," ")
T2= "D=1";
T3="SALE=";

fig = uifigure;
txa = uitextarea(fig);
txa.Value = ([T1; T2; T3]);

and I got the following output in the UI:

1 5
2 6
3 7
4 8

What did I do wrong in the reshape?

[dpb]

T1 = table([3;2;7;6], [9;4;5;0]);
T1 = join(string(reshape(1:numel(T1),[],2))," ");

Look at reshape doc, the first argument is the array to rearrange which is

T1 = table([3;2;7;6], [9;4;5;0]);
1:numel(T1)

ans = 1×8

1 2 3 4 5 6 7 8

That's because the original post by the OP said 1:6 was the actual data wanted and there's no sense in creating a table just to turn immediately turn it into an array so I just created the array inside as the argument in reshape. So just copying that particular piece of code replaced the table T1 with an array of the sequence of the number of elements that were in the table (8).

[Asi]

Thanks dpb for the tip. I presume you mean: T1 = join(string(reshape(table2array(T1),[],2))," ")

[dpb]

Well, not really. What I'm driving at is that there's no point in creating a table if all one is going to do with it is turn it into an array; create the array only in the first place; then there's no need for table2array.