How do i add search functionality into my drop down menu in my GUI?
25 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I have a GUI that loads data and plots it. I have drop down menus for selecting the parameters to plot. I wanted to add search functionality to the drop down menu. Any suggestions?
2 commentaires
Rishabh Rathore
le 31 Mai 2018
Can you elaborate as to search what? Search from existing values for drop down?
Réponses (2)
Arsalan jamialahmadi
le 13 Fév 2019
You can add en uieditfield called MyEditField to your app and for that apply a "ValueChanging" callback to be able to search your MyDropDown:
changingValue = event.Value;
List=[];
if ~isempty(app.MyEditField)
for i=1:length(app.OriginalList)
if contains(app.OriginalList{i},changingValue)
List=[List,app.OriginalList(i)];
end
end
end
if isempty(app.MyEditField)
List=app.OriginalList;
end
if ~isempty(List)
app.MyDropDown.Items=List;
end
if isempty(event.Value)
app.MyDropDown.Items=app.OriginalList;
end
if ~isempty(event.Value) && isempty(List)
app.MyDropDown.Items={};
end
0 commentaires
Bereketab Gulai
le 25 Mai 2020
Here is much Modified of Arsalan jamialahmadi
% Value changing function: TestTypeSearchEditField
function TestTypeSearchEditFieldValueChanging(app, event)
persistent originalTestTypeList; % save the original list
if isempty(originalTestTypeList)
originalTestTypeList = app.TestTypeDropDown.Items;
pause(0.5); % sync value (in case...)
end
changingValue = event.Value;
Utility.filterDropdownList(app.TestTypeDropDown, originalTestTypeList, changingValue);
end
In Utility Class (You can create this)
function filterDropdownList(uidropdownControl, originalList, changingValue)
List=[];
if ~isempty(changingValue)
for c = 1:length(originalList)
if contains(originalList{c},changingValue, "IgnoreCase",true)
List = [List,originalList(c)];
end
end
end
if ~isempty(List) % Something is found
uidropdownControl.Items = List;
elseif ~isempty(changingValue) && isempty(List) % Nothing is found
uidropdownControl.Items = {};
else % Restore otherwise
uidropdownControl.Items = originalList;
if isempty(uidropdownControl.ItemsData)
uidropdownControl.Value = originalList{1};
else
if isnumeric(uidropdownControl.ItemsData)
uidropdownControl.Value = uidropdownControl.ItemsData(1);
else
uidropdownControl.Value = uidropdownControl.ItemsData{1};
end
end
end
end
0 commentaires
Voir également
Catégories
En savoir plus sur Creating and Concatenating Matrices dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!