我想使用C#
代码获取上传的 excel 文件的工作表名称。该文件可能是.xls
或.xlsx
格式。我使用的代码如下:
protected void btnGenerateCSV_Click(object sender, EventArgs e)
{
string sourceFile = ExcelFileUpload.PostedFile.FileName;
string worksheetName = ?? //(How to get the first sheetname of the uploaded file)
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + sourceFile + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=1\"";
if (sourceFile.Contains(".xlsx"))
strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + sourceFile + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=1\"";
try
{
conn = new OleDbConnection(strConn);
conn.Open();
cmd = new OleDbCommand("SELECT * FROM [" + worksheetName + "$]", conn);
cmd.CommandType = CommandType.Text;
wrtr = new StreamWriter(targetFile);
da = new OleDbDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
for (int x = 0; x < dt.Rows.Count; x++)
{
string rowString = "";
for (int y = 0; y < dt.Columns.Count; y++)
{
rowString += "\"" + dt.Rows[x][y].ToString() + "\",";
}
wrtr.WriteLine(rowString);
}
}
catch (Exception exp)
{
}
finally
{
if (conn.State == ConnectionState.Open)
conn.Close();
conn.Dispose();
cmd.Dispose();
da.Dispose();
wrtr.Close();
wrtr.Dispose();
}
}
- (如何获取
sheetname
上传文件的第一个)string worksheetName = ??