使用ADO.NET易行添加到一个Excel工作表

Using ADO.NET is easy to add a row to an Excel Sheet

string fileName = @"D:\test.xlsx"; 
string connectionString = String.Format(@"Provider=Microsoft.ACE.OLEDB.12.0;" + 
        "Data Source={0};Extended Properties='Excel 12.0;HDR=YES;IMEX=0'", fileName); 

using(OleDbConnection cn = new OleDbConnection(connectionString))
{
    cn.Open();
    OleDbCommand cmd1 = new OleDbCommand("INSERT INTO [Sheet1$] " + 
         "([Column1],[Column2],[Column3],[Column4]) " + 
         "VALUES(@value1, @value2, @value3, @value4)", cn);
   cmd1.Parameters.AddWithValue("@value1", "Key1");
   cmd1.Parameters.AddWithValue("@value2", "Sample1");
   cmd1.Parameters.AddWithValue("@value3", 1);
   cmd1.Parameters.AddWithValue("@value4", 9);
   cmd1.ExecuteNonQuery();
}

在code以上假设你有一个第一行与列1列名的头......。 此外，code使用ACE OLEDB提供Excel中，而不是Microsoft.Jet.OleDb.4.0 2007年或2010年。

The code above assumes that you have a first row with an header with Column1... as column names. Also, the code use the ACE OleDB provider for Excel 2007 or 2010 instead of Microsoft.Jet.OleDb.4.0.

编辑：要引用一个命名范围，你可以更改SQL命令，这一个

To refer to a Named Range you could change the sql command to this one

    OleDbCommand cmd1 = new OleDbCommand("INSERT INTO [yourNamedRange] " + 
                        "VALUES(@value1, @value2, @value3, @value4)", cn);

唉，我无法找到一个方法来引用单个列。

Alas, I can't find a way to refer to the individual columns.