Added XmlHelper (from VECTO3GUI)

VECTO3GUI2020/Helper/XmlHelper.cs

+using System;
+using System.Xml;
+using Castle.Core.Internal;
+
+namespace VECTO3GUI2020.Helper
+{
+	public static class XmlHelper
+	{
+		public static XmlDocument ReadXmlDocument(string filePath)
+		{
+			if (filePath.IsNullOrEmpty())
+				return null;
+
+			var xmlDocument = new XmlDocument();
+			
+			using (var reader = new XmlTextReader(filePath)) {
+				xmlDocument.Load(reader);	
+			}
+
+			return xmlDocument;
+		}
+
+
+		public static XmlNodeList GetComponentNodes(XmlDocument xmlDocument, string parentNode, string nodeName)
+		{
+			if (xmlDocument == null || parentNode.IsNullOrEmpty() || nodeName.IsNullOrEmpty())
+				return null;
+
+			return xmlDocument.SelectNodes($"//*[local-name()='{parentNode}']//*[local-name()='{nodeName}']");
+		}
+
+		//public static bool ValidateXDocument(XDocument xDocument, Action<bool> resultAction = null,
+		//	Action<XmlSeverityType, ValidationEvent> validationErrorAction = null)
+		//{
+		//	var xmlDocument = xDocument.ToXmlDocument();
+		//	if (xmlDocument == null)
+		//		return false;
+
+		//	var documentType = XMLHelper.GetDocumentType(xmlDocument.DocumentElement.LocalName);
+		//	if (documentType == null)
+		//	{
+		//		throw new VectoException("unknown xml file! {0}", xmlDocument.DocumentElement.LocalName);
+		//	}
+
+		//	var validator = new XMLValidator(xmlDocument, resultAction, validationErrorAction);
+		//	return validator.ValidateXML(documentType.Value); ;
+		//}
+
+		public static string GetXmlAbsoluteFilePath(string baseUri)
+		{
+			if (baseUri == null)
+				return null;
+
+			return Uri.UnescapeDataString(new Uri(baseUri).AbsolutePath);
+		}
+	}
+}

VECTO3GUI2020/VECTO3GUI2020.csproj

@@ -137,6 +137,7 @@
     <Compile Include="Helper\DialogHelper.cs" />
     <Compile Include="Helper\WindowHelper.cs" />
     <Compile Include="Helper\XMLExtension.cs" />
+    <Compile Include="Helper\XmlHelper.cs" />
     <Compile Include="Ninject\FactoryModule.cs" />
     <Compile Include="Ninject\MultistageModule.cs" />
     <Compile Include="Util\XML\Implementation\ComponentWriter\XMLPTOWriter.cs" />