Validating XML Document using XSD in WCF Service

[Arulmanoj]

I writing a WCF service to get a xml file as input and validate it against a schema. I have done the validation part. But I don't know how to write method in WCF service to get xml file as input.

Below i have given code i have written in WCF service.

  public string CheckXMLData(XmlDocument xmlDoc)
        {
            TheXsd = "Customer.xsd";

            //load schema 
            XmlSchemaCollection xsc = new XmlSchemaCollection();
            xsc.Add("Customer", TheXsd);
            Validate(xmlDoc, xsc);
            return " Validation Result";
        }

        public string Validate(XmlDocument xmlDoc, XmlSchemaCollection xsc)
        {
            XmlTextReader reader = null;
            XmlValidatingReader vreader = null;

            //reader = new XmlTextReader(xmlDoc);
            reader = new XmlTextReader(xmlDoc.ToString());
            vreader = new XmlValidatingReader(reader);
            vreader.Schemas.Add(xsc);
            vreader.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack);
            try
            {
                while (vreader.Read()) { }
            }
            catch
            {
                return Output = "XML Document is not well-formed.";
            }
            vreader.Close();
            return Output;
        }

        public void ValidationCallBack(object sender, ValidationEventArgs args)
        {
            Outcome = "<font color=\"red\">Failed:</font>";
            Output += "Validation error: <font color=\"red\">" + args.Message + "</font><br>";
        }

[Monomachus]

Hi,

I writing a WCF service to get a xml file as input and validate it against a schema. I have done the validation part. But I don't know how to write method in WCF service to get xml file as input.

Below i have given code i have written in WCF service.

Thanks

Manoj

  public string CheckXMLData(XmlDocument xmlDoc)
        {
            TheXsd = "Customer.xsd";

            //load schema 
            XmlSchemaCollection xsc = new XmlSchemaCollection();
            xsc.Add("Customer", TheXsd);
            Validate(xmlDoc, xsc);
            return " Validation Result";
        }

        public string Validate(XmlDocument xmlDoc, XmlSchemaCollection xsc)
        {
            XmlTextReader reader = null;
            XmlValidatingReader vreader = null;

            //reader = new XmlTextReader(xmlDoc);
            reader = new XmlTextReader(xmlDoc.ToString());
            vreader = new XmlValidatingReader(reader);
            vreader.Schemas.Add(xsc);
            vreader.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack);
            try
            {
                while (vreader.Read()) { }
            }
            catch
            {
                return Output = "XML Document is not well-formed.";
            }
            vreader.Close();
            return Output;
        }

        public void ValidationCallBack(object sender, ValidationEventArgs args)
        {
            Outcome = "<font color=\"red\">Failed:</font>";
            Output += "Validation error: <font color=\"red\">" + args.Message + "</font><br>";
        }

To create a WCF take a look at this.Creating, Configuring and Consuming a WCF service in IIS 7 In mean time please explain what exactly is going wrong? What do you really need?

[Arulmanoj]

Hi Monomachus,

I want to validate a xml file and against a xml schema using a WCF service in C#. I will be sending the XML file as a XML document to the WCF service. The service will validate the XML file against the predefined scheme file in the service. Here I am not able to write a method to get XML file as input from the client who is consuming the service. I am using XmlTextReader and XmlValidatingRe ader to read and validate the XML file.

Thanks
Manoj

[Arulmanoj]

To create a WCF take a look at this.Creating, Configuring and Consuming a WCF service in IIS 7 In mean time please explain what exactly is going wrong? What do you really need?

Hi Monomachus,

I want to validate a xml file and against a xml schema using a WCF service in C#. I will be sending the XML file as a XML document to the WCF service. The service will validate the XML file against the predefined scheme file in the service. Here I am not able to write a method to get XML file as input from the client who is consuming the service. I am using XmlTextReader and XmlValidatingRe ader to read and validate the XML file.

Thanks
Manoj