https://learn.microsoft.com/ko-kr/dotnet/api/system.windows.forms.listview.columnheadercollection.indexof?view=netframework-4.8.1&viewFallbackFrom=windowsdesktop-9.0
ListView.ColumnHeaderCollection.IndexOf(ColumnHeader) Method (System.Windows.Forms) | Microsoft...
Returns the index, within the collection, of the specified column header.
windows formslistviewindexofmethodsystem
https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Reference/Roles/columnheader_role
ARIA: columnheader role - ARIA | MDN
The columnheader value of the ARIA role attribute identifies an element as being a cell in a row contains header information for a column, similar to the...
ariarolemdn