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| Title | Easily make ListView column headers programmatically in VB .NET |
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| Keywords | ListView, columns, column headers, VB.NET |
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| Categories | VB.NET, Controls |
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Subroutine ListViewMakeColumnHeaders takes as parameters a ListView control and a ParamArray containing header information. For each column header, the ParamArray contains the column's title text, width, and alignment. The code loops through the ParamArray creating the column headers.
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' Make the ListView's column headers.
' The ParamArray entries should alternate between
' strings and HorizontalAlignment values.
Private Sub ListViewMakeColumnHeaders(ByVal lvw As _
ListView, ByVal ParamArray header_info() As Object)
' Remove any existing headers.
lvw.Columns.Clear()
' Make the column headers.
For i As Integer = header_info.GetLowerBound(0) To _
header_info.GetUpperBound(0) Step 3
lvw.Columns.Add( _
DirectCast(header_info(i), String), _
DirectCast(header_info(i + 1), Integer), _
DirectCast(header_info(i + 2), _
HorizontalAlignment))
Next i
End Sub
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The program would use this subroutine as in:
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' Make the ListView column headers.
ListViewMakeColumnHeaders(lvwBooks, _
"Title", 200, HorizontalAlignment.Left, _
"URL", 100, HorizontalAlignment.Left, _
"ISBN", 100, HorizontalAlignment.Left, _
"Picture", 200, HorizontalAlignment.Left, _
"Pages", 50, HorizontalAlignment.Right, _
"Year", 50, HorizontalAlignment.Right)
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