diff --git a/HJGL_DS/FineUIPro.Web/HJGL/DataIn/DrawingRecognitionContent.aspx.cs b/HJGL_DS/FineUIPro.Web/HJGL/DataIn/DrawingRecognitionContent.aspx.cs
index 0d034cf..aa6c207 100644
--- a/HJGL_DS/FineUIPro.Web/HJGL/DataIn/DrawingRecognitionContent.aspx.cs
+++ b/HJGL_DS/FineUIPro.Web/HJGL/DataIn/DrawingRecognitionContent.aspx.cs
@@ -225,9 +225,9 @@ namespace FineUIPro.Web.HJGL.DataIn
                                
                             }
                             DataRow[] rowsPipe = dtIsoInfo.Select(" pipeline_id='" + isono + "'  ");
-                            if (rows != null && rows.Length > 0)
+                            if (rowsPipe != null && rowsPipe.Length > 0)
                             {
-                                string isNeedHead = rows[0]["post_weld_heat_treatment"].ToString();
+                                string isNeedHead = rowsPipe[0]["post_weld_heat_treatment"].ToString();
                                 if (isNeedHead == "N")
                                 {
                                     isoInfo.IsHot = "0";