I am working with a very large worksheet that has many named ranges. I expect that the worksheet will be modified in the future, so I cannot interact with cells using their cell number.
How can I get an existing name (or list of the existing names) from the worksheet? Alternatively, how can I tell my C# program that a certain name already exists, and to utilize it?
You'll want to use Excel.Worksheet.Names
foreach (Excel.Worksheet sheet in wb.Sheets) {
foreach (Excel.Range range in sheet.Names) {
// this is the named ranges
}
}
If you were to use EPPlus , you could do this (very simple)
static void Main(string[] args) {
using (FileStream stream = new FileStream(@"C:\Users\bblack\Test\TestWorksheet.xlsx", FileMode.Append)) {
using (ExcelPackage xl = new ExcelPackage(stream)) {
// xl by default contains one workbook;
bool test;
foreach (ExcelWorksheet sheet in xl.Workbook.Worksheets) {
test = NamedRangeExists("NamedRange", sheet);
}
}
}
}
static bool NamedRangeExists(string name, ExcelWorksheet ws) {
return ws.Names.Where(n => n.Name == name).Count() > 0;
}
That would open up the specified file, iterate through the sheets contained in the workbook and check for a named range within them called "NamedRange".
are you looking for something like this? In this solution I put them in a dictionary
Dictionary<string, Worksheet> dictionary = new Dictionary<string, Worksheet>();
foreach ( Worksheet worksheet in ws.Worksheets )
{
dictionary.Add( worksheet.Name, worksheet );
}
update
Sheet1.Range("A3:A7")<-- get range
wb is of type Workbook
Dictionary<string, Range> dictionary = new Dictionary<string, Range>();
foreach (Worksheet sheet in wb.Sheets) {
foreach (Range range in sheet.Names) {
dictionary.Add( range.Name, Range );
//use here range var
var cells= range.Cells;
}
}
refer here to see which property you want
This alternative to Ben Black's answer worked for me :
foreach (Excel.Worksheet sheet in wb.Sheets) {
foreach (Excel.Name name in sheet.Names) {
var value = sheet.get_Range(name.NameLocal).Value;//get value of named range
var formula = sheet.get_Range(name.NameLocal).Formula;//get Formula of named range
}
}
int row = 3;
var wb = Globals.ThisAddIn.Application.ActiveWorkbook;
ws.Range["A6"].Value = wb.Names.Count;
foreach (Name rangeName in wb.Names)
{
Range c = ws.Cells[row++, 3];
c.Value = rangeName.NameLocal;
}
var ws = Globals.ThisAddIn.Application.ActiveSheet;
ws.Range["A7"].Value = ws.Range["MyRangeName"].Value;
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