validating an xml document.

[Akinola Oladayo ayobami]

i wrote a program sometimes to validate my xml file against the schema using c#.net but i found out that whether there was error or no error, it will always say the document is valid even if i specify the wrong file name. i want you to give me a snippet of code and the xml file to see how to validate in C#.net

[kartic03]

protected void Page_Load(object sender, EventArgs e)
{
try
{
string a,b,error;
strXml = "Example.xml";
strXsd = "Example.xsd";
XmlSchemaCollection sc = new XmlSchemaCollection();
sc.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack);
sc.Add(null, strXsd);

//XmlTextReader textReader = new XmlTextReader(strXml);
//XmlValidatingReader validatingReader = new XmlValidatingReader(textReader);
//validatingReader.ValidationType = ValidationType.Schema;
XmlSchema schema = XmlSchema.Read(new XmlTextReader(strXsd), null);
schema.SourceUri = strXsd;
XmlValidatingReader validatingReader = new XmlValidatingReader(new
XmlTextReader(strXml));
validatingReader.Schemas.Add(schema);
validatingReader.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack);
while (validatingReader.Read()) ;
a = "Success";
error="Error";
if(error==a)
{
Response.Write("Invalid File "+b);
}
else
{
Response.write("Xml IS valid");
}

}
catch(Exception ex)
{
a = "Error";
b = exc.Message;
}

}
private void ValidationCallBack(object sender,System.Xml.Schema.ValidationEventArgs e)
{
if (e.Message != "")
{
a = "Error";
b = e.Message;
}
}



I hope this will help you.