How can drop-down menus inside a uitable be opened with just a single mouseclick?

5 次查看（过去 30 天）

Stefan Holleyn 2018-6-26

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/407429-how-can-drop-down-menus-inside-a-uitable-be-opened-with-just-a-single-mouseclick

编辑： Rahul 2025-4-9

I have build an application using the App Designer, which is using a uitable with drop-down menus inside the columns. To open these drop-down menus I have to click twice. Once for selecing the specific cell of the table and a second time to open the drop-down list. Is there a way to prevent this and get the same result with a single mouseclick?

6 个评论
显示 4更早的评论隐藏 4更早的评论

John Isler 2019-12-28

Thank you for this solution. It seema bit laggy. Is there another work around?

Umesh M 2023-6-2

I am also struggling to add drop-down menu for a particular column for uitable and app designer both.

Please help.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Rahul 2025-4-9

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/407429-how-can-drop-down-menus-inside-a-uitable-be-opened-with-just-a-single-mouseclick#answer_1563397

编辑：Rahul 2025-4-9

Hi @Stefan Holleyn,

I understand that while trying to use dropdowns inside a UITable, the dropdown opens after clicking on the cell twice, once for selecting the cell and once for opening the dropdown. This behaviour might cause delays in your workflow.

The workaround mentioned which uses a 'CellSelectionCallback' and perform a second click on the cell by using java.awt.Robot seems to be a good workaround in this case.

However as I checked, the UITable component has been improved in the recent versions of MATLAB (i.e. R2024a onwards). Now if the dropdown arrow present in the cell is clicked directly, the the dropdown would open without the need of more number of clicks. Clicking on any other part of the cell would not open the dropdown menu and would just select the cell.

Here is an example: