How to create a search box in List Box in MATLAB GUI?

29 次查看（过去 30 天）
Harsh Mittal
Harsh Mittal 2021-8-13
回答： Image Analyst 2021-8-13
I have a listbox in my MATLAB GUI, it contains 200 items to select from. I want to add a search option in my listbox so that I can select the items from the list box easily, is there any way to do this?
  2 个评论
Adam Danz
Adam Danz 2021-8-13
You can add a textbox to your GUI. The callback of the textbox will update the listbox list by deciding which values are a match to the string in the text box. You may want to use startsWith, endsWith, regexp, regexpi, contains, or another string matching function.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2021-8-13
I agree with Adam. I'd put an edit text box right above the listbox. Maybe with a button beside it if you want. Then in the callback for the edit text box, and the button callback if you have a button, call a function called LoadListBox(). In that function do something like (untested)
function handles = LoadListBox(handles)
% Get the folder you're working in.
folder = handles.folder; % or wherever....
% Get edit text box pattern
filePattern = strtrim(handles.edtSearch.String);
% Prepend the folder.
if isempty(filePattern)
% Handle case where the edit box is empty.
filePattern = fullfile(folder, '*.*'); % List all files.
else
% Case where they entered something into the edit text box.
% See if they put an extension. If they didn't, add star.
if ~contains(filePattern, '.') || endsWith(filePattern, '.')
% No dot, or else ends with dot but has no extension. Add wildcard extension.
filePattern = [filePattern, '.*']; % Append dot star.
end
filePattern = fullfile(folder, filePattern);
end
% Call dir to get a list of files matching the filter.
fileList = dir(filePattern);
% Send the list of base file names into the listbox control.
handles.lstFilebox.String = {fileList.name};
% Old Value (from prior folder listing) cannot be greater than the number of files in this folder or
% else the listbox won't appear. It it's longer, make it 1.
if handles.lstFilebox.Value > length(handles.lstFilebox.String)
handles.lstFilebox.Value = 1;
end

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Migrate GUIDE Apps 的更多信息

标签

产品


版本

R2020a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by