11

SGGL/BLL/Common/NPOIHelper.cs

@@ -22,7 +22,7 @@ namespace BLL
         /// </summary>
         /// <param name="filePath">Excel文件路径</param>
         /// <returns></returns>
-        public static DataTable ExcelToDataTable(string filePath)
+        public static DataTable ExcelToDataTable1(string filePath)
         {
             var dt = new DataTable();
             using (var file = new FileStream(filePath, FileMode.Open, FileAccess.Read))
@@ -85,6 +85,94 @@ namespace BLL
             }
             return dt;
         }
+        public static DataTable ExcelToDataTable(string filePath)
+        {
+            var dt = new DataTable();
+            using (var file = new FileStream(filePath, FileMode.Open, FileAccess.Read))
+            {
+                var hssfworkbook = new HSSFWorkbook(file);
+                var sheet = hssfworkbook.GetSheetAt(0);
+                var rows = sheet.GetRowEnumerator();
+                rows.MoveNext();
+                var row = (HSSFRow)rows.Current;
+                for (var j = 0; j < row.LastCellNum; j++)
+                {
+                    var cell = row.GetCell(j);
+                    if (cell != null)
+                    {
+                        dt.Columns.Add(cell.StringCellValue);
+                    }
+                    else
+                    {
+                        dt.Columns.Add("collum" + j);
+                    }
+
+                }
+                while (rows.MoveNext())
+                {
+                    row = (HSSFRow)rows.Current;
+                    var dr = dt.NewRow();
+                    for (var i = 0; i < row.LastCellNum; i++)
+                    {
+                        var cell = row.GetCell(i);
+                        if (cell == null)
+                        {
+                            dr[i] = null;
+                        }
+                        else
+                        {
+                            try
+                            {
+                                switch (cell.CellType)
+                                {
+                                    case CellType.Blank:
+                                        //dr[i] = "[null]";
+                                        break;
+                                    case CellType.Boolean:
+                                        dr[i] = cell.BooleanCellValue;
+                                        break;
+                                    case CellType.Numeric:
+                                        dr[i] = cell.ToString();
+                                        break;
+                                    case CellType.String:
+                                        dr[i] = cell.StringCellValue;
+                                        break;
+                                    case CellType.Error:
+                                        dr[i] = cell.ErrorCellValue;
+                                        break;
+                                    case CellType.Formula:
+                                        try
+                                        {
+                                            dr[i] = cell.NumericCellValue;
+                                        }
+                                        catch
+                                        {
+                                            try
+                                            {
+                                                dr[i] = cell.StringCellValue;
+                                            }
+                                            catch
+                                            {
+                                                dr[i] = null;
+                                            }
+                                        }
+                                        break;
+                                    default:
+                                        dr[i] = "=" + cell.CellFormula;
+                                        break;
+                                }
+                            }
+                            catch (Exception ex)
+                            {
+                            }
+                        }
+                    }
+                    dt.Rows.Add(dr);
+                }
+            }
+            return dt;
+        }
+
 
         /// <summary>
         /// Excel转换成DataSet（.xlsx/.xls）