C#读取Excel
using System;
using System.Data;
using System.Data.OleDb;
namespace ClientExcelTableManager
{
class Program
{
public static string tablePath = @"E:\ExchangeItem.xlsx";
static void Main(string[] args)
{
DataSet _dataset = ToDataTable(tablePath);
if (_dataset != null)
{
for (int i = 0; i < _dataset.Tables.Count; i++)
{
Console.WriteLine(_dataset.Tables[i].TableName + " / row: " + _dataset.Tables[i].Rows.Count + " / column: " + _dataset.Tables[i].Columns.Count);
for (int j = 0; j < _dataset.Tables[i].Rows.Count; j++)
{
for (int k = 0; k < _dataset.Tables[i].Rows[j].ItemArray.Length; k++)
{
Console.Write(_dataset.Tables[i].Rows[j].ItemArray[k].ToString() + "|");
}
Console.WriteLine("\r");
}
}
}
Console.ReadLine();
}
public static DataSet ToDataTable(string filePath)
{
string connStr = "";
string fileType = System.IO.Path.GetExtension(filePath);
if (string.IsNullOrEmpty(fileType)) return null;
if (fileType == ".xls")
{
connStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties=\"Excel 8.0;HDR=NO;IMEX=1\"";
}
else
{
connStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filePath + ";Extended Properties=\"Excel 12.0;HDR=NO;IMEX=1\"";
}
string sql_F = "select * from [{0}]";
OleDbConnection conn = null;
OleDbDataAdapter da = null;
DataTable dtSheetName = null;
DataSet ds = new DataSet();
try
{
conn = new OleDbConnection(connStr);
conn.Open();
string SheetName = "";
dtSheetName = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
da = new OleDbDataAdapter();
for (int i = 0; i < dtSheetName.Rows.Count; i++)
{
SheetName = (string)dtSheetName.Rows[i]["TABLE_NAME"];
da.SelectCommand = new OleDbCommand(String.Format(sql_F, SheetName), conn);
DataSet dsItem = new DataSet();
da.Fill(dsItem, SheetName);
ds.Tables.Add(dsItem.Tables[0].Copy());
}
}
catch (Exception ex)
{
Console.WriteLine("Exception! " + ex);
}
finally
{
if (conn.State == ConnectionState.Open)
{
conn.Close();
da.Dispose();
conn.Dispose();
}
}
return ds;
}
}
}
