Displaying Files using a Listbox in a GUIDE GUI.
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I have written a GUI that pulls data from a file and makes plots. Currently, I have coded a pushbutton to retrieve the files, but I want to put a listbox in the GUI that acts as a directory.
I figure this is a common operation, but I haven't been able to find much to get me started.
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Evan
2013-8-12
Where exactly are you running into trouble? Posting your relevant code so far might help. As for displaying the files in the listbox, to do that you just need to set the box's 'String' property.
d = dir; %get files
set(handles.my_listbox,'String',{d.name}) %set string
8 个评论
Caleb
2013-8-12
Caleb
2013-8-12
To have it go to a different directory, just do what you do in your above comment: pass a string representing the path to the folder you want to look in to dir.
If you wanted to find only filetypes with certain extensions, you could parse the returned strings and only keep those that contain the string '.xls' or '.xlsx'
D = dir('C:\Users\MATLAB\Data')
D = {D(:).name};
D = D(cellfun(@(x)~isempty(regexp(x,'.xls')),D))
Also, if you want to set the string to the listbox from within the callback to your pushbutton, you need to pass in the handle to the listbox into set instead of the argument hObject. hObject is the handle to the object whose callback is currently executing, so the pushbutton's callback will try to set the pushbutton's string to your file names instead of handles.my_listbox (where my_listbox is your listbox's Tag property).
Caleb
2013-8-12
The problem is that the 'String' property for a listbox is always the entire contents of that listbox, even when you have a particular row selected. To isolate a single string (usually the selected one) from your entire cell array, you need to index it based on the 'Value' property of your listbox.
% Read EXCEL file highlighted in listbox
a = 'C:\Users\MATLAB\Data';
b = get(handles.listbox1, 'string');
v = get(handles.lixtbox1, 'value '); %get current selection value
b = b{v}; %choose corresponding cell
filename = strcat(a,b);
%Read columns from Sheet1 of selected file into MATLAB
[data, text] = xlsread(filename, 'A:H');
Caleb
2013-8-12
Evan
2013-8-12
No problem! Glad you have it working.
DJ Sabio
2016-3-7
not working
[data,text] = xlsread('DB.xls','Users','B3:B100') % Read EXCEL file highlighted in listbox a = 'C:\Users\user\Documents\LogIn\DB.xls'; b = get(handles.lbox, 'string'); v = get(handles.lbox, 'value '); %get current selection value b = b{v}; %choose corresponding cell DB.xls = strcat(a,b); %Read columns from Sheet1 of selected file into MATLAB
Error in editemployee (line 42) gui_mainfcn(gui_State, varargin{:});
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