XmlSchemaException Classe

Definizione

public ref class XmlSchemaException : SystemException

public class XmlSchemaException : SystemException

[System.Serializable]
public class XmlSchemaException : SystemException

type XmlSchemaException = class
    inherit SystemException

[<System.Serializable>]
type XmlSchemaException = class
    inherit SystemException

Public Class XmlSchemaException
Inherits SystemException

Ereditarietà

Object

Exception

SystemException

XmlSchemaException

Derivato

System.Xml.Schema.XmlSchemaInferenceException

System.Xml.Schema.XmlSchemaValidationException

Attributi

SerializableAttribute

Esempio

Nell'esempio seguente viene illustrato l'uso della XmlSchemaException classe .

using System;
using System.Xml;
using System.Xml.Schema;
using System.IO;

public class ValidXSD
{
    public static int Main()
    {

        FileStream fs;
        XmlSchema schema;
        try
        {
            fs = new FileStream("example.xsd", FileMode.Open);
            schema = XmlSchema.Read(fs, new ValidationEventHandler(ShowCompileError));

            XmlSchemaSet schemaSet = new XmlSchemaSet();
            schemaSet.ValidationEventHandler += new ValidationEventHandler(ShowCompileError);
            schemaSet.Add(schema);
            schemaSet.Compile();

            XmlSchema compiledSchema = null;

            foreach (XmlSchema schema1 in schemaSet.Schemas())
            {
                compiledSchema = schema1;
            }

            schema = compiledSchema;

            if (schema.IsCompiled)
            {
                // Schema is successfully compiled.
                // Do something with it here.
            }
            return 0;
        }
        catch (XmlSchemaException e)
        {
            Console.WriteLine("LineNumber = {0}", e.LineNumber);
            Console.WriteLine("LinePosition = {0}", e.LinePosition);
            Console.WriteLine("Message = {0}", e.Message);
            return -1;
        }
    }

    private static void ShowCompileError(object sender, ValidationEventArgs e)
    {
        Console.WriteLine("Validation Error: {0}", e.Message);
    }
}

Option Strict On
Option Explicit On

Imports System.Xml
Imports System.Xml.Schema
Imports System.IO

Public Class ValidXSD
    Public Shared Sub Main()
        Dim fs As FileStream
        Dim schema As XmlSchema
        Try
            fs = New FileStream("example.xsd", FileMode.Open)
            schema = XmlSchema.Read(fs, New ValidationEventHandler(AddressOf ShowCompileError))

            Dim schemaSet As New XmlSchemaSet()
            AddHandler schemaSet.ValidationEventHandler, AddressOf ShowCompileError

            schemaSet.Add(schema)
            schemaSet.Compile()

            Dim compiledSchema As XmlSchema = Nothing

            For Each schema1 As XmlSchema In schemaSet.Schemas()
                compiledSchema = schema1
            Next

            schema = compiledSchema

            If schema.IsCompiled Then
                ' Schema is successfully compiled. 
                ' Do something with it here.
            End If

        Catch e As XmlSchemaException
            Console.WriteLine("LineNumber = {0}", e.LineNumber)
            Console.WriteLine("LinePosition = {0}", e.LinePosition)
            Console.WriteLine("Message = {0}", e.Message)
            Console.WriteLine("Source = {0}", e.Source)

        End Try
    End Sub


    Private Shared Sub ShowCompileError(ByVal sender As Object, ByVal e As ValidationEventArgs)
        Console.WriteLine("Validation Error: {0}", e.Message)
    End Sub
End Class

Commenti