C# - getting last row used from a particular column

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Hello everyone,

I'm here to ask for your help again.

I need to get the last used row from a specific column - I use only index of column, not letters for it and also i have them formatting using different colors for cells.

Any solution to how i could get the last used row from a specific column ??

What I have tried:

C#

int nInLastCol = xlWorkSheet.Cells.Find("*", System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value, Excel.XlSearchOrder.xlByColumns, Excel.XlSearchDirection.xlPrevious, false, System.Reflection.Missing.Value, System.Reflection.Missing.Value).Row;

It returns me for the last column from my sheet, the last used row in that column.

But i need for a particularly column not the last..

Posted 28-Nov-16 0:04am

serbanov

Updated 28-Nov-16 1:31am

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lukeer 28-Nov-16 6:55am

What environment are you in?
WinForms? XAML? A database? Which one?
What is an xlWorkSheet? Is that Excel?

#realJSOP 28-Nov-16 7:32am

He's using the Excel.Interop library.

serbanov 28-Nov-16 6:57am

I'm using WinForms. I found something now :

int _lastUSEDrow = xlWorkSheet.Cells[1, 3].EntireColumn.Find("*",
System.Reflection.Missing.Value,
Excel.XlFindLookIn.xlValues,
Excel.XlLookAt.xlWhole,
Excel.XlSearchOrder.xlByRows,
Excel.XlSearchDirection.xlPrevious,
false,
System.Reflection.Missing.Value,
System.Reflection.Missing.Value).Row;

xlSheet - is my working sheet from workbook. It seems what i've posted in this comment gives me what i'm looking. I didn't submit it yet as a solution, i'm waiting comments and suggestions.

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#realJSOP · Answer 1 · 2016-11-28T01:31:00

Solution 1

You can't get the last row used in a specific column without iterating the range of cells (from [column]1 to myWorksheet.UsedRange.Rows.Count) BACKWARDS until you find the last row with a value.

If you just want the number of rows used overall, use myWorksheet.UsedRange.Rows.Count

Posted 28-Nov-16 1:31am

#realJSOP

Comments

serbanov 29-Nov-16 1:00am

int _lastUSEDrow = xlWorkSheet.Cells[1, 3].EntireColumn.Find("*",
System.Reflection.Missing.Value,
Excel.XlFindLookIn.xlValues,
Excel.XlLookAt.xlWhole,
Excel.XlSearchOrder.xlByRows,
Excel.XlSearchDirection.xlPrevious,
false,
System.Reflection.Missing.Value,
System.Reflection.Missing.Value).Row; - John , how about this code ? did you give it a try ? for me it seems it shows me the las used row on a specific index of a column, in this example for column no. 3 !