C# 获得.xls文件的内容 获得.xls文件中的表名

]private void ExcelToDS(string Path)
{
string clientFilePath = FileUpload1.PostedFile.FileName;       //客户端文件的物理路径

int i = clientFilePath.LastIndexOf("."); //取得文件名中最后一个"."的索引
string extension = clientFilePath.Substring(i); //获取文件扩展名

if (extension != ".xls")
{
MsgBox.Alert("文件必须为.xls格式！", "ImportTeacherDate.aspx");
return;
}
else
{
string myConn = "Provider = Microsoft.Jet.OLEDB.4.0 ; Data Source = '" + clientFilePath + "';Extended Properties=Excel 8.0";

OleDbConnection cnnxls = new OleDbConnection(myConn);

DataSet myDataSet = new DataSet();   //创建DataSet对象

cnnxls.Open();
DataTable dt = cnnxls.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
string StyleSheet = dt.Rows[0][2].ToString().Trim();    //.xls的第一个表名

string StrSql = string.Format("SELECT * FROM [{0}]", StyleSheet);
OleDbDataAdapter myCommand = new OleDbDataAdapter(StrSql, myConn);
myCommand.Fill(myDataSet, string.Format("[{0}]", StyleSheet));
myCommand.Dispose();
DataTable DT = myDataSet.Tables[string.Format("[{0}]", StyleSheet)];

for (int j = 0; j < DT.Rows.Count; j++)
{
try
{
string userLogin = BusinessFacadeFrameWork.get_table_fileds("FrameWork_Member", "Name", "Name", DT.Rows[j][0].ToString().Trim());
if (!string.IsNullOrEmpty(userLogin))
{
MsgBox.Alert(string.Format("添加教师失败！{0}的登录名已存在！", DT.Rows[j][0].ToString()), "ImportTeacherDate.aspx");
return;
}
else
{
//向用户表内添加老师基本信息
FrameWork_MemberEntity me = new FrameWork_MemberEntity();
me.DataTable_Action_ = DataTable_Action.Insert;
me.Name = DT.Rows[j][0].ToString().Trim();
me.PSW = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile("123456", "MD5").ToUpper();
me.RegTime = DateTime.Now;
me.TrueName = DT.Rows[j][1].ToString().Trim();
me.MemberRoleID = 6;
int rInt = BusinessFacadeFrameWork.FrameWork_MemberInsertUpdateDelete(me);
if (rInt < 1)
{
MsgBox.Alert("向用户表内添加老师基本信息失败！", "ImportTeacherDate.aspx");
return;
}
else
{
//向教师表内添加教师详细信息
FrameWork_TeacherEntity te = new FrameWork_TeacherEntity();
te.DataTable_Action_ = DataTable_Action.Insert;
te.cLogin = DT.Rows[j][0].ToString().Trim();
te.cName = DT.Rows[j][1].ToString().Trim();
te.cIntro = DT.Rows[j][2].ToString().Trim();
te.cPos = DT.Rows[j][3].ToString().Trim();
te.cPhoto = DT.Rows[j][4].ToString().Trim();
te.cTeacherCode = AdminLoginInfo.CCode;
te.cTeachTel = DT.Rows[j][5].ToString().Trim();
int rInt_te = BusinessFacadeFrameWork.FrameWork_TeacherInsertUpdateDelete(te);
if (rInt_te < 1)
{
MsgBox.Alert("向用户表内添加老师基本信息失败！", "ImportTeacherDate.aspx");
return;
}
}
}
}
catch (Exception ex)
{
MsgBox.Alert("用户提供的表格格式不正确", "ImportTeacherDate.aspx");
return;
}
}
cnnxls.Close();
MsgBox.Alert("导入教师数据成功！", "TeacherList.aspx?ModelID=500");
}
}