MATLAB Central Newsreader - Load data from workspace to gui

Load data from workspace to gui

Eli Chmouni — Tue, 30 Jun 2009 17:32:01 -0400

Hello everyone;
i have created a gui that loads a .mat file and thus save all the variables in the matlab workspace. My second task now is i have 2 edit text boxes and a push button
--->what i want to happen is the user of the gui can enter the name of a variable already existing in the workspace and then click the push button and the value of the variable should appear in the second edit text box (that could be a static text box too)
any help would be appreciated
Thank you

Re: Load data from workspace to gui

Ilya Rozenfeld — Tue, 30 Jun 2009 20:21:01 -0400

Let 'var' contain the name of the variable you want to be displayed and 'boxHndl' contain handle to the edit box where you want variable to appear

In the Callback to the button do the following:

% create box handle variable in the base workspace
assignin('base', 'dispBoxHndl, boxHndl)

% assign variable value to the box
evalin('base', ['set(boxHndl, ''String'', num2str(' var '))'])

"Eli Chmouni" <echmouni@gmail.com> wrote in message <h2di6h$8ca$1@fred.mathworks.com>...
> Hello everyone;
> i have created a gui that loads a .mat file and thus save all the variables in the matlab workspace. My second task now is i have 2 edit text boxes and a push button
> --->what i want to happen is the user of the gui can enter the name of a variable already existing in the workspace and then click the push button and the value of the variable should appear in the second edit text box (that could be a static text box too)
> any help would be appreciated
> Thank you

Re: Load data from workspace to gui

Giacomo — Thu, 30 Jul 2009 07:36:01 -0400

"Ilya Rozenfeld" <rozeni.nospam@alum.rpi.edu> wrote in message <h2ds3d$9f6$1@fred.mathworks.com>...
> Let 'var' contain the name of the variable you want to be displayed and 'boxHndl' contain handle to the edit box where you want variable to appear
>
> In the Callback to the button do the following:
>
> % create box handle variable in the base workspace
> assignin('base', 'dispBoxHndl, boxHndl)
>
> % assign variable value to the box
> evalin('base', ['set(boxHndl, ''String'', num2str(' var '))'])
>
> "Eli Chmouni" <echmouni@gmail.com> wrote in message <h2di6h$8ca$1@fred.mathworks.com>...
> > Hello everyone;
> > i have created a gui that loads a .mat file and thus save all the variables in the matlab workspace. My second task now is i have 2 edit text boxes and a push button
> > --->what i want to happen is the user of the gui can enter the name of a variable already existing in the workspace and then click the push button and the value of the variable should appear in the second edit text box (that could be a static text box too)
> > any help would be appreciated
> > Thank you

Hi Ilya, so if the edit text cell where I want the variable to appear is called for example "edit13" the code on the button for display will be:
assignin('base', 'dispedit13', handles.edit13)
evalin('base', ['set(handles.edit13, ''String'', num2str(' var '))'])

Correct? Thank you

Re: Load data from workspace to gui

Ilya Rozenfeld — Thu, 30 Jul 2009 13:33:03 -0400

It looks like I've made a mistake. The code should've been

assignin('base', 'dispBoxHndl', boxHndl)
evalin('base', ['set(dispBoxHndl, ''String'', num2str(' var '))'])

So in your case it should be like this

assignin('base', 'dispedit13', handles.edit13)
evalin('base', ['set(dispedit13, ''String'', num2str(' var '))'])

"Giacomo " <bigbig1982@hotmail.com> wrote in message <h4rih1$a0u$1@fred.mathworks.com>...
> "Ilya Rozenfeld" <rozeni.nospam@alum.rpi.edu> wrote in message <h2ds3d$9f6$1@fred.mathworks.com>...
> > Let 'var' contain the name of the variable you want to be displayed and 'boxHndl' contain handle to the edit box where you want variable to appear
> >
> > In the Callback to the button do the following:
> >
> > % create box handle variable in the base workspace
> > assignin('base', 'dispBoxHndl, boxHndl)
> >
> > % assign variable value to the box
> > evalin('base', ['set(boxHndl, ''String'', num2str(' var '))'])
> >
> > "Eli Chmouni" <echmouni@gmail.com> wrote in message <h2di6h$8ca$1@fred.mathworks.com>...
> > > Hello everyone;
> > > i have created a gui that loads a .mat file and thus save all the variables in the matlab workspace. My second task now is i have 2 edit text boxes and a push button
> > > --->what i want to happen is the user of the gui can enter the name of a variable already existing in the workspace and then click the push button and the value of the variable should appear in the second edit text box (that could be a static text box too)
> > > any help would be appreciated
> > > Thank you
>
>
> Hi Ilya, so if the edit text cell where I want the variable to appear is called for example "edit13" the code on the button for display will be:
> assignin('base', 'dispedit13', handles.edit13)
> evalin('base', ['set(handles.edit13, ''String'', num2str(' var '))'])
>
> Correct? Thank you

Re: Load data from workspace to gui

Giacomo — Thu, 30 Jul 2009 18:02:03 -0400

"Ilya Rozenfeld" <rozeni.nospam@alum.rpi.edu> wrote in message <h4s7ef$ahh$1@fred.mathworks.com>...
> It looks like I've made a mistake. The code should've been
>
> assignin('base', 'dispBoxHndl', boxHndl)
> evalin('base', ['set(dispBoxHndl, ''String'', num2str(' var '))'])
>
> So in your case it should be like this
>
> assignin('base', 'dispedit13', handles.edit13)
> evalin('base', ['set(dispedit13, ''String'', num2str(' var '))'])

Thank you very much, I'll try it tomorrow! :)