Fix #1412

nissl-lab · Sep 22, 2024 · 97c974c · 97c974c
1 parent 00a0934
commit 97c974c
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/OpenXmlFormats/Spreadsheet/Styles/CT_NumFmt.cs b/OpenXmlFormats/Spreadsheet/Styles/CT_NumFmt.cs
@@ -23,7 +23,8 @@ public static CT_NumFmt Parse(XmlNode node, XmlNamespaceManager namespaceManager
                 return null;
             CT_NumFmt ctObj = new CT_NumFmt();
             ctObj.numFmtId = XmlHelper.ReadUInt(node.Attributes["numFmtId"]);
-            ctObj.formatCode = XmlHelper.ReadString(node.Attributes["formatCode"]);
+            if(node.Attributes["formatCode"]!=null)
+                ctObj.formatCode = XmlHelper.ReadString(node.Attributes["formatCode"]);
             return ctObj;
         }
 
@@ -33,7 +34,8 @@ internal void Write(StreamWriter sw, string nodeName)
         {
             sw.Write(string.Format("<{0}", nodeName));
             XmlHelper.WriteAttribute(sw, "numFmtId", this.numFmtId,true);
-            XmlHelper.WriteAttribute(sw, "formatCode", this.formatCode);
+            if(formatCode!=null)
+                XmlHelper.WriteAttribute(sw, "formatCode", this.formatCode, true);
             sw.Write("/>");
         }