How to delete a component in a listbox?

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Jihad Chamseddine 2014-7-14

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https://ww2.mathworks.cn/matlabcentral/answers/141784-how-to-delete-a-component-in-a-listbox

评论： Marcel Maeder 2018-12-13

hi I used the below code for adding components for a listbox and it finally works but know I want to know if I want to delete a component from the listbox what should I do please? hope you can help me guys

this is the code that I have used

prompt=('please enter the component name: '); name=('input component name'); numlines=1; defaultanswer={''};

% prompt the user for some input answer = inputdlg(prompt,name,numlines,defaultanswer,'on'); % get the current list box selections selections = get(handles.listbox1,'String'); % append the answer to the list selections = [selections ; answer]; % update the list box with the new selection set(handles.listbox1,'String',selections);

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采纳的回答

Ben11 2014-7-14

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https://ww2.mathworks.cn/matlabcentral/answers/141784-how-to-delete-a-component-in-a-listbox#answer_145030

编辑：Ben11 2014-7-14

在 MATLAB Online 中打开

You do pretty much the same thing as before, i.e. modify the string array and put it back in the listbox with the set(...) command.

Let's say your string looks like this:

selections = {'A' 'B' 'C'};

Then you delete say the 2nd element:

selections(2) = []
selections = 
      'A'    'C'

And you can put it back in the listbox:

set(handles.listbox1,'String',selections);

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Nam Hoang Le 2017-2-16

Do you know how to solve this? I also had this problem

Marcel Maeder 2018-12-13

在 MATLAB Online 中打开

You need to set your listbox value back to '1' so that the first can be selected (the listbox is made invisible since it is trying to select a number in the list that no longer exists).

set(handles.listbox,'Value',1);

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