public static DataSet ReadExcelToDataSet(string filePath, string sheetName)
{
DataSet ds = new DataSet();
DataRow dr;
object objCellValue;
string cellValue;
using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.ReadWrite))
{
////EPPlus 5.0 以後的版本需要指定 商業證書 或者非商業證書
//ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
using (ExcelPackage package = new ExcelPackage())
{
package.Load(fs);
foreach (var sheet in package.Workbook.Worksheets)
{
if (sheet.Name.ToUpper().Trim() == sheetName.ToUpper().Trim())
{
#region
if (sheet.Dimension == null) continue;
var columnCount = sheet.Dimension.End.Column;
var rowCount = sheet.Dimension.End.Row;
if (rowCount > 0)
{
DataTable dt = new DataTable(sheet.Name);
for (int j = 0; j < columnCount; j++)//設置DataTable列名
{
objCellValue = sheet.Cells[1, j + 1].Value;
cellValue = objCellValue == null ? "" : objCellValue.ToString();
dt.Columns.Add(cellValue, typeof(string));
}
for (int i = 2; i <= rowCount; i++)
{
dr = dt.NewRow();
for (int j = 1; j <= columnCount; j++)
{
objCellValue = sheet.Cells[i, j].Value;
if (objCellValue != null)
{
if (sheet.Cells[i, j].Style.Numberformat.Format.IndexOf("yyyy") > -1 && sheet.Cells[i, j].Value.GetType().ToString() == "System.Double")//注意這裏，是處理日期時間格式的關鍵代碼
objCellValue = sheet.Cells[i, j].GetValue<DateTime>();
}
cellValue = objCellValue == null ? "" : objCellValue.ToString();
dr[j - 1] = cellValue;
}
dt.Rows.Add(dr);
}
ds.Tables.Add(dt);
}
#endregion
}
}
}
}
return ds;
}