how to return the value to workspace after user select item in pop-up menu

hi, i want to return the value to workspace, when i select the specific item in pop-up menu, how to store it in the workspace.

[Stephen23]

Rather than magically making data appear in another workspace using e.g. ASSIGNIN, a much better approach is to simply return the required value as an output argument and use WAITFOR.

[wenchao zhang]

hi,stephen,define the output argument in the main function or in the callback function? about waitfor, i have a check, yes it can stop the following command in a script untill current event finished

[Stephen23]

define the output argument in the main function or in the callback function?"

From the main function.

Answer 1

[Animesh]

Hey @wenchao zhang,

You can use the assignin function in MATLAB to save the selected value to the workspace.

Here's how you can do it:

assignin('base', 'selection', str{val});

With this, a variable named selection will be created in the workspace, containing the value of the selected item.

You can refer the following MathWorks documentation for more information on assignin function:

https://www.mathworks.com/help/releases/R2019a/matlab/ref/assignin.html

[wenchao zhang]

hi, Animesh, your suggestion works well, thanks.

[wenchao zhang]

if i just want creat a popup menu during the m script runing, it seems use listdlg will more convenient, and the script will stop to wait for the user to do the selection.

list = {'Red','Yellow','Blue',...

'Green','Orange','Purple'};

[indx,tf] = listdlg('ListString',list);