NPOI读取数据报错

codegit/CallCenterCommon/CallCenter.Utility/NPOI/NPOIHelper.cs

                 DataRow dr = dt.NewRow();
 
                 IRow row = sheet.GetRow(i);
-                for (int j = row.FirstCellNum; j < cellCount; j++)
+                if (row != null)
                 {
-                    if (row.GetCell(j) != null)
+                    for (int j = row.FirstCellNum; j < cellCount; j++)
                     {
-                        dr[j] = row.GetCell(j).ToString();
+                        if (row.GetCell(j) != null)
+                        {
+                            dr[j] = row.GetCell(j).ToString();
+                        }
                     }
-                }
 
-                dt.Rows.Add(dr);
+                    dt.Rows.Add(dr);
+                }
             }
 
             sheet = null;