use a text from a text box in a GUI

Question

Laura Echeverri Zea 2020-4-2

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/514888-use-a-text-from-a-text-box-in-a-gui

评论： Laura Echeverri Zea 2020-4-2

Hi everyone, I'm doing a GUI in which the user has to enter a name of a series of files that is sequential, and I don't know how to use the information in the Text.edit to search for the files in a for cicle... here is the code im using... thank you very much for your help

NM=str2double(get(handles.NM,'String')); %number of files 
Especie=get(handles.Especie,'String'); % first part of the name
assignin('base','Especie',Especie)
Fecha=get(handles.Fecha,'String');% second part of the name
assignin('base','Fecha',Fecha)
Hora=get(handles.Hora,'String');% third part of the name
assignin('base','Hora',Hora)
for k=1:NM
eval(['load Medicion_Carne_',num2str(k),'_',Especie,'_',Fecha,'_',Hora,'.mat']);
end

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Answer 1

Image Analyst 2020-4-2

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/514888-use-a-text-from-a-text-box-in-a-gui#answer_423615

编辑：Image Analyst 2020-4-2

在 MATLAB Online 中打开

To get a string from an edit text box don't use the old obsolete get(), use the new OOP style:

Especie = handles.Especie.String;   % Get the first part of the name from the edit text box.
Fecha = handles.Fecha.String;       % Get the second part of the name from the edit text box.
Hora = handles.Hora.String;         % Get the third part of the name from the edit text box.

Never use eval() or assignin(). See the FAQ: FAQ : How_can_I_share_data_between_callback_functions_in_my_GUI?

folder = pwd; % or 'C:/your data' or wherever...
for k = 1 : NM
    baseFileName = sprintf('Medicion_Carne_%d_%s_%s_%s.mat', k, Especie, Fecha, Hora);
    fullFileName = fullfile(folder, baseFileName); % Prepend folder
    if isfile(fullFileName)
        % Load this .mat file's variables into a stored structure.
        % It's in a cell array so as to not overwrite any other filenames that will also get loaded.
        fprintf('Loading mat file: %s\n', fullFileName);
        s{k} = load(fullFileName)
    else
        warningMessage = sprintf('Warning:\n%s\ndoes not exist', fullFileName);
        uiwait(warndlg(warningMessage));
    end
end