I figured out how to make a new Excel sheet in C#.
And I do it this way:
private static Microsoft.Office.Interop.Excel.ApplicationClass appExcel;
appExcel.Worksheets.Add();
But I have no idea how to give a name to the Excel sheet I made, nor how to place it at the end instead of the beginning.
I tried this:
sheet1 = appExcel.Worksheets.Add();
sheet1.name = "test";
But this didn’t work.
I also looked in the Add function, but I can NOT fill the name in this way: appExcel.Worksheets.Add("test");
My code:
excel_init("C:\Users\me\Desktop\excel2.xlsx");
private static Microsoft.Office.Interop.Excel.ApplicationClass appExcel;
private static Workbook newWorkbook_First = null;
private static _Worksheet objsheet = null;
static void excel_init(String path)
{
appExcel = new Microsoft.Office.Interop.Excel.ApplicationClass();
if (System.IO.File.Exists(path))
{
// then go and load this into excel
newWorkbook_First = appExcel.Workbooks.Open(path, true, true,5); // does NOT make 5 excel sheet???
objsheet = (_Worksheet)appExcel.ActiveWorkbook.ActiveSheet;
}
else
{
try
{
appExcel = new Microsoft.Office.Interop.Excel.ApplicationClass();
appExcel.Visible = true;
newWorkbook_First = appExcel.Workbooks.Add(1);
objsheet = (Microsoft.Office.Interop.Excel.Worksheet)newWorkbook_First.Sheets[1];
}
catch (Exception e)
{
Console.Write("Error");
}
finally
{
}
}
}
If you look at the documentation for Worksheets.Add you get:
Object Add(
Object Before,
Object After,
Object Count,
Object Type
)
So the Add method both creates the new worksheet and specifies various parameters about how to place it in the Worksheets collection.
- Before Type: System.Object Optional Object. An object that specifies the sheet before which the new sheet is added.
- After Type: System.Object Optional Object. An object that specifies the sheet after which the new sheet is added.
- Count Type: System.Object Optional Object. The number of sheets to be added. The default value is one.
- Type Type: System.Object Optional Object. Specifies the sheet type. Can be one of the following XlSheetType constants: xlWorksheet, xlChart, xlExcel4MacroSheet, or xlExcel4IntlMacroSheet.
So all you need to do is something like:
var newSheet = appExcel.Worksheets.Add(null, appExcel.Worksheets(appExcel.Worksheets.Count), 1, XlSheetType.xlWorksheet);
newSheet.Name = "myWorkSheet";
This will create and return one worksheet after the last worksheet and then set the name.
Note: Worksheets are not 0 based.
Update:
So as per my hackery in the comments this should instead be:
var newSheet = (Microsoft.Office.Interop.Excel.Worksheet)appExcel.Worksheets.Add(Type.Missing, appExcel.Worksheets[appExcel.Worksheets.Count], 1, XlSheetType.xlWorksheet);
newSheet.Name = "myWorkSheet";
or just
var newSheet = appExcel.Worksheets.Add(Type.Missing, appExcel.Worksheets[appExcel.Worksheets.Count], 1, XlSheetType.xlWorksheet) as Worksheet;
newSheet.Name = "myWorkSheet";
