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Excel vba code understand

Hi,
I am trying to understand the code below,
iRow = ws.Cells(Rows.Count, 1). end(xlUp).Offset(1,0).Row

does it mean somthing like
worksheet.Cells(total rows, first cell).Offset(next line, same cell).Row

Q1. why we use .Row at the end
Q2. How would we find last empty cell - col


Kind regards,

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SameerMirza
Asked:
SameerMirza
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1 Solution
 
SameerMirzaAuthor Commented:
sorry If I sound to annoying but I just want to understand it once very clearly because lines like these are used quiet often
0
 
Saqib Husain, SyedEngineerCommented:
rows.count gives the number of rows in a sheet

ws.Cells(Rows.Count, 1) is the last row in column 1

ws.Cells(Rows.Count, 1). end(xlUp) If you put the cursor in the last row of column 1 and press <end> then <up> the cell where you would land will be given by this expression

ws.Cells(Rows.Count, 1).end(xlUp).row gives the row number of this cell.


So, usually, if the last row of your data in row 487 then
ws.Cells(Rows.Count, 1). end(xlUp)
will take you to A487

and

ws.Cells(Rows.Count, 1). end(xlUp).row will give the row number of A487 or simply 487
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SameerMirzaAuthor Commented:
Orite.. - now I know and I can simple write the same statement for last occupied cell if I have to - JUST PERFACT

I have another question though,
I am following an example - please have a look at the code below
Its basically to enter values values in excel sheet - database - using a command button

Know I know that we can use 'Exit Function' to exit function
But I am trying to implement the error handling here but not sure
For example it throws the 'alert' when 'partid' is not given but would still write the row - which it shouldn't

It would great if you get me started on it or just quickly edit the code to be able to handle the 'nulls' etc

Thanks

Private Sub cmdAdd_Click()

Dim iRom As Long
Dim ws As Worksheet
Set ws = Worksheets("PartsData")
'find first empty row in the database
iRow = ws.Cells(Rows.Count, 1) _
.End(xlUp).Offset(1, 0).Row

'check for a part number
If Trim(Me.txtPart.Value) = "" Then
Me.txtPart.SetFocus
MsgBox "Please enter part number"
Exit()
End If

'assign the values
ws.Cells(iRow, 1).Value = Me.txtPart.Value
ws.Cells(iRow, 2).Value = Me.txtLocation
ws.Cells(iRow, 3).Value = Me.txtDate
ws.Cells(iRow, 4).Value = Me.txtQuantity

'clear the data
Me.txtPart.Value = ""
Me.txtLocation = ""
Me.txtDate = ""
Me.txtQuantity = ""



End Sub

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SameerMirzaAuthor Commented:
how do we convert string to number?
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Saqib Husain, SyedEngineerCommented:
Change line 15 from  "End if" to "Else"

and add "End if" on line 22


To convert string to number the conventional function is
a = val(string)

but quite often this is very conveniently done by

a = --string

or

a = string * 0
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SameerMirzaAuthor Commented:
thanks
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