diff --git a/SGGL/FineUIPro.Web/FineUIPro.Web.csproj b/SGGL/FineUIPro.Web/FineUIPro.Web.csproj
index e9884f10..4f55694d 100644
--- a/SGGL/FineUIPro.Web/FineUIPro.Web.csproj
+++ b/SGGL/FineUIPro.Web/FineUIPro.Web.csproj
@@ -105,8 +105,8 @@
     <Reference Include="Microsoft.QualityTools.Testing.Fakes, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
     </Reference>
-    <Reference Include="MiniExcel, Version=1.26.5.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\MiniExcel.1.26.5\lib\net45\MiniExcel.dll</HintPath>
+    <Reference Include="MiniExcel, Version=1.29.0.0, Culture=neutral, PublicKeyToken=e7310002a53eac39, processorArchitecture=MSIL">
+      <HintPath>..\packages\MiniExcel.1.29.0\lib\net45\MiniExcel.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\packages\Newtonsoft.Json.12.0.1\lib\net40\Newtonsoft.Json.dll</HintPath>
diff --git a/SGGL/FineUIPro.Web/HJGL/WeldingManage/PipelineListPDMSIn.aspx.cs b/SGGL/FineUIPro.Web/HJGL/WeldingManage/PipelineListPDMSIn.aspx.cs
index e999f736..6706249e 100644
--- a/SGGL/FineUIPro.Web/HJGL/WeldingManage/PipelineListPDMSIn.aspx.cs
+++ b/SGGL/FineUIPro.Web/HJGL/WeldingManage/PipelineListPDMSIn.aspx.cs
@@ -1006,7 +1006,7 @@ namespace FineUIPro.Web.HJGL.WeldingManage
                         pipeline.WeldJointCode = col19;
                     }
 
-                    string col20 = pds[i].U;
+                    string col20 = pds[i].U.ToString();
                     if (!string.IsNullOrEmpty(col20))
                     {
                         var material = getMaterial.FirstOrDefault(x => x.MaterialCode == col20);
@@ -1025,7 +1025,7 @@ namespace FineUIPro.Web.HJGL.WeldingManage
                         result += "第" + (i + 1).ToString() + "行," + "材质1" + "," + "此项为必填项！" + "|";
                     }
 
-                    string col21 = pds[i].V;
+                    string col21 = pds[i].V.ToString();
                     if (!string.IsNullOrEmpty(col21))
                     {
                         var material = getMaterial.FirstOrDefault(x => x.MaterialCode == col21);