c#: programmatically create a "named range" in worksheet scope

Question

How can we create a 'named range' that has its scope set to a worksheet? (as we can do this manually from Excel, I guess there is a way to this in code)

Setting a name using the 'Range.Name' property creates a workbook-scoped named range. I tried prefixing the range name with '<Sheet Name>!' as suggested here, but it doesn't work. The name doesn't get set at all that way.

Any idea as to how this can be done in C#?

Update (2013/05/16): Answer by shahkalpesh worked. The original code (in VS 2010) I used is:

using Excel = Microsoft.Office.Interop.Excel;

Excel.Worksheet ws = Globals.ThisAddIn.Application.ActiveSheet;
Excel.Range range = ws.Range[ws.Cells[x,y], ws.Cells[(x + height), (y + width)]];
range.Name = "MyName"; // MyName in workbook scope

The modified code that works is:

ws.Names.Add("MyName", range); // MyName in worksheet scope

Thanks, idssl.

Answer 1

Assumptions:
Sheet1 has cells A1:A4, for which you want to create a named range

VBA:

Sheet1.Names.Add("tada", Sheet1.Range("A1:A4"))

I suppose it will be identical in c# (except the ; at the end) and passing empty arguments for optional parameters.