why i use Worksheet.UsedRange.Rows.Count got wrong result

Question

In VB.NET I want to get the used rows so I wrote that:

Dim objWorksheet As Excel.Worksheet = workbook.Sheets(2)
Dim lastRow = objWorksheet.UsedRange.Rows.Coun         


        

Answer 1

Try to avoid UsedRange. It can be misleading. For instance, if you fill range A1:B5 and clear the contents of column B, then UsedRange.Columns.Count will return 2 - because Excel remembers cells with formatting and includes them into UsedRange.

UPDATE

To get real last column and row, use following code:

lRealLastRow = _
    Cells.Find("*", Range("A1"), xlFormulas, , xlByRows, xlPrevious).Row
lRealLastColumn = _
    Cells.Find("*", Range("A1"), xlFormulas, , xlByColumns, xlPrevious).Column

UPDATE 2