利用Microsoft.ACE.OLEDB读取Excel源代码

/// <summary>
/// 获得Excel的数据到DataSet 贾世义
/// </summary>
/// <param name="fileName">Excel完整文件名</param>
/// <param name="isFirstTitle">首行是否为标题行</param>
/// <returns></returns>
public static DataSet GetDataFromExcel(string fileName, bool isFirstTitle)
{
DataSet ds = null;
string strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source= " + fileName + ";Extended Properties='Excel "
+ (fileName.EndsWith("xls", StringComparison.CurrentCultureIgnoreCase) ? "8" : "12") + ".0;HDR=" + (isFirstTitle ? "Yes" : "No") + "'";
using (OleDbConnection conn = new OleDbConnection(strConn))
{
conn.Open();
//返回Excel的架构，包括各个sheet表的名称,类型，创建时间和修改时间等
DataTable dtSheetName = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "Table" });
ds = new DataSet();
//包含excel中表名的字符串数组
for (int k = 0; k < dtSheetName.Rows.Count; k++)
{
string strTableName = dtSheetName.Rows[k]["TABLE_NAME"].ToString();
string str = "select * from [" + strTableName + "]";
OleDbDataAdapter da = new OleDbDataAdapter(str, conn);
da.Fill(ds, strTableName.Replace("$", "").ToLower());
da.Dispose();
}
if (!isFirstTitle)
{
foreach (DataTable dt in ds.Tables)
{
for (int j = 0; j < dt.Columns.Count; j++)
{
dt.Columns[j].ColumnName = j.ToString();
}
}
}
conn.Close();
conn.Dispose();
}
return ds;
}

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