diff --git a/HJGL_DS/FineUIPro.Web/HJGL/HotProessManage/HotProessTrust.aspx b/HJGL_DS/FineUIPro.Web/HJGL/HotProessManage/HotProessTrust.aspx
index e50841f..a784650 100644
--- a/HJGL_DS/FineUIPro.Web/HJGL/HotProessManage/HotProessTrust.aspx
+++ b/HJGL_DS/FineUIPro.Web/HJGL/HotProessManage/HotProessTrust.aspx
@@ -123,7 +123,7 @@
                                     <f:DropDownList ID="drpProessTypes" runat="server" Label="热处理类型" Width="250px" EnableEdit="true"
                                         AutoPostBack="true" OnSelectedIndexChanged="TextBox_TextChanged" LabelWidth="90px">
                                     </f:DropDownList>
-                                    <f:TextBox ID="txtIsoNo" Label="管线号" runat="server" LabelWidth="60px" AutoPostBack="true"
+                                    <f:TextBox ID="txtIsoNo" Label="管线号" runat="server" LabelWidth="60px" AutoPostBack="true" Hidden="true"
                                         OnTextChanged="TextBox_TextChanged">
                                     </f:TextBox>
                                     <f:ToolbarFill ID="ToolbarFill2" runat="server">
diff --git a/HJGL_DS/FineUIPro.Web/HJGL/HotProessManage/HotProessTrust.aspx.cs b/HJGL_DS/FineUIPro.Web/HJGL/HotProessManage/HotProessTrust.aspx.cs
index 3178659..fc68283 100644
--- a/HJGL_DS/FineUIPro.Web/HJGL/HotProessManage/HotProessTrust.aspx.cs
+++ b/HJGL_DS/FineUIPro.Web/HJGL/HotProessManage/HotProessTrust.aspx.cs
@@ -250,6 +250,7 @@ namespace FineUIPro.Web.HJGL.HotProessManage
         /// <param name="node"></param>
         private void BindNodes(TreeNode node, List<Model.HJGL_CH_HotProessTrust> trustList)
         {
+            Model.SGGLDB db = Funs.DB;
             foreach (var item in trustList)
             {
                 TreeNode newNode = new TreeNode();
@@ -262,7 +263,12 @@ namespace FineUIPro.Web.HJGL.HotProessManage
                     newNode.Text = "<font color='#FF7575'>" + item.HotProessTrustCode + "</font>";
                 }
                 newNode.NodeID = item.HotProessTrustId;
-                newNode.ToolTip = item.HotProessTrustCode;
+                var isoNo = (from x in db.HJGL_PW_IsoInfo
+                             join y in db.HJGL_PW_JointInfo on x.ISO_ID equals y.ISO_ID
+                             join z in db.HJGL_CH_HotProessTrustItem on y.JOT_ID equals z.JOT_ID
+                             where z.HotProessTrustId == item.HotProessTrustId
+                             select x.ISO_IsoNo).FirstOrDefault();
+                newNode.ToolTip = isoNo;
                 newNode.CommandName = "委托单号";
                 newNode.EnableClickEvent = true;
                 node.Nodes.Add(newNode);