<![CDATA[How to auto-generate the entries of a QComboBox from file names?]]>I want to add some new functions to a complex Qt project. For this I need to generate the entries of a QComboBox automatically from the names of files, which are located in a certain directory. And as soon as I select one of the entries, the content of the corresponding file should be copied automatically to another file.

Example:
A directory c:\dat contains the files: "XYZ-1", "XYZ-2", and "XYZ-3"
So my QComboBox "dat_box" should create the entries "XYZ-1", "XYZ-2", and "XYZ-3".
As soon as I select e.g. "XYZ-2", the content of the file "XYZ-2" shall be copied automatically into an existing file "XYZ" (and replace its content).

How can I program this? (My C++ programming skills are not the best. Please be so kind and explain it well enough or at best give me a concrete example)

]]>https://forum.qt.io/topic/134446/how-to-auto-generate-the-entries-of-a-qcombobox-from-file-namesRSS for NodeMon, 16 Mar 2026 16:08:41 GMTFri, 18 Feb 2022 11:13:51 GMT60<![CDATA[Reply to How to auto-generate the entries of a QComboBox from file names? on Fri, 18 Feb 2022 14:56:38 GMT]]>@Urbi said in How to auto-generate the entries of a QComboBox from file names?:

Do you also know how I can do it to copy the content of the selected file to a specified file?

See QFile::copy()

]]>https://forum.qt.io/post/703190https://forum.qt.io/post/703190Fri, 18 Feb 2022 14:56:38 GMT<![CDATA[Reply to How to auto-generate the entries of a QComboBox from file names? on Fri, 18 Feb 2022 13:37:10 GMT]]>@jsulm Thanks, that should work. Do you also know how I can do it to copy the content of the selected file to a specified file?

]]>https://forum.qt.io/post/703177https://forum.qt.io/post/703177Fri, 18 Feb 2022 13:37:10 GMT<![CDATA[Reply to How to auto-generate the entries of a QComboBox from file names? on Fri, 18 Feb 2022 11:51:28 GMT]]>@Urbi Use https://doc.qt.io/qt-5/qdir.html#entryList-1 to get a list of all files in the directory and add these files to your combo box.

]]>https://forum.qt.io/post/703149https://forum.qt.io/post/703149Fri, 18 Feb 2022 11:51:28 GMT