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    <p>Here's a method I use for validating xml with a schema</p> <pre><code>public static Tuple&lt;bool, string&gt; ValidateXml(string xmlSchemaFile, string sourceXml) { var internalValidationErrors = new XmlSchemaValidationErrorCollection(); ValidationEventHandler handler = (sender, args) =&gt; internalValidationErrors.Add(args); var settings = new XmlReaderSettings { ValidationType = ValidationType.Schema }; try { // Set the validation settings. settings = new XmlReaderSettings { ValidationType = ValidationType.Schema }; settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessInlineSchema; settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessSchemaLocation; settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings; settings.ValidationEventHandler += handler; using(var reader = XmlReader.Create(xmlSchemaFile)) { settings.Schemas.Add(null, reader); } if(settings.Schemas.Count == 0) return Tuple.Create(false, "Missing schema file."); // Create the XmlReader object for xml using(var reader = XmlReader.Create(sourceXml, settings)) { // Parse the file. while(reader.Read()) {} } var validationErrors = internalValidationErrors; return Tuple.Create(validationErrors.Any(), validationErrors.ToString()); } finally { settings.ValidationEventHandler -= handler; } } public class XmlSchemaValidationErrorCollection : List&lt;ValidationEventArgs&gt; { internal XmlSchemaValidationErrorCollection() { } public override string ToString() { var builder = new StringBuilder(); foreach (var validationError in this) { builder.Append("-Validation Error-"); builder.AppendFormat("Message: {0} \r\n", validationError.Message); builder.AppendFormat("Severity: {0} \r\n", Enum.GetName(typeof(XmlSeverityType), validationError.Severity)); builder.AppendFormat("Exception: {0} \r\n", validationError.Exception.GetDeepMessage()); builder.Append("\r\n"); } return base.ToString(); } } </code></pre>
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    1. POWhy does XmlDocument.validate incorrectly validate an invalid xml document with empty namespaces?
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    1. USstevethethread
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    1. COthanks but that code assume the XML exist on a disk, I want to validate before i save the XML document.
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    2. COYou can change the method to read the the xml from a stream instead, so you would read from a memory stream etc.
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    3. CODo you think you could show an example with MemoryStream I'm not sure how you are suppose to use it.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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