Microsoft Interop: Excel Column Names

Question

I am using Microsoft Interop to read the data.

In excel-sheet the column-names are like A,B,C,D,....,AA,AB,.... and so on. Is there any way to read this column-names?

If you need any other info please let me know.

Regards, Priyank

Solution

     Excel.Application xlApp = new Excel.Application();
     Excel.Workbook xlWorkbook = xlApp.Workbooks.Open("workbookname");
     Excel.Worksheet xlWorksheet = xlWorkbook.Sheets[1]; // assume it is the first sheet
     int columnCount = xlWorksheet.UsedRange.Columns.Count;
     List<string> columnNames = new List<string>();
     for (int c = 1; c < columnCount; c++)
     {
         if (xlWorksheet.Cells[1, c].Value2 != null)
         {
             string columnName = xlWorksheet.Columns[c].Address;
             Regex reg = new Regex(@"(\$)(\w*):");
             if (reg.IsMatch(columnName))
             {
                 Match match = reg.Match(columnName);             
                 columnNames.Add(match.Groups[2].Value);
             }                      
        }
     }

This will put each column name in a List<string> which you can then bind to a drop down box.

Comments

[squelos]

Where do you find the doc concerning the whole interop.excel namespace ? By looking at the MSDN, I cant seem to find anything interesting.

[Jetti]

@squelos you can find some information from MSDN here. Other info I got from a book. I also have a blog post which you can read here that deals with reading Excel data with C# and .NET 4.0

[Jetti]

@PriyankThakkar I'm glad I could help

[Rob Koch]

good starting point for me! I had wanted to copy the column names from Excel over to a CSV file and adjusted your code to columnNames.Add(xlWorksheet.Cells[1, c].Value); Thanks!