How to select multiple files with an OpenFileDialog?

Question

I have a WinForms application with an OpenFileDialog in it and I'd like to enable selection of multiple files when the user interacts with the dialog. How can I accomplish this?

Answer 1

Don't know what you did, but when I click File/Open in Visual Studio 2008, it is possible to multi-select all files or just a part of them by clicking on the first file in the list, holding the shift key and then clicking on the last file.

EDIT: ok, you edited the question, seems that I misunderstood you in the first place. Idan K's answer should be correct.

Answer 2

See the OpenFileDialog::Multiselect property, from the docs:

Gets or sets a value indicating whether the dialog box allows multiple files to be selected.

To get the list of files selected you should use the OpenFileDialog::FileNames property.

Answer 3

adding the style OFN_ALLOWMULTISELECT will add this see this

If you want to select a folder you should use something else :)

If you are using c++ .net (you didn't state that). You can use the MultiSelect property MSDN