private void InitializeCustomContext(CustomQueryContext paramContext)
{
IDictionary <string, string> namespaces = paramContext.GetNamespacesInScope(XmlNamespaceScope.ExcludeXml);
_paramContext = new CustomQueryContext((NameTable)paramContext.NameTable);
_paramContext.AddNamespace(namespaces);
}
/// <summary>
/// This method does some XPath specific initializations.
/// </summary>
private void InitializeXPathObjects(Stream xmlStream)
{
try
{
_xPathDoc = new XPathDocument(xmlStream);
_xNav = _xPathDoc.CreateNavigator();
_paramContext = new CustomQueryContext(new NameTable());
}
catch (XmlException ex)
{
Trace.TraceError("An XML specific exception occured " +
"while initializing XPathDocument and XPathNavigator in XPathQueryManager: " +
ex.Message);
throw;
}
catch (Exception ex)
{
Trace.TraceError("An exception occured " +
"while initializing XPathDocument and XPathNavigator in XPathQueryManager: " +
ex.Message);
throw;
}
finally
{
xmlStream.Dispose();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="XPathQueryManager"/> class.
/// </summary>
/// <param name="xPathDoc">An XmlDocument instance</param>
/// <param name="xIter">An XPathNodeIterator instance</param>
/// <param name="paramContext">A <see cref="XPathQueryManager.CustomQueryContext"/> instance for parameterized XPath expressions</param>
private XPathQueryManager(XPathDocument xPathDoc, XPathNodeIterator xIter, CustomQueryContext paramContext)
: this(xPathDoc)
{
if (xIter != null)
{
_xNav = xIter.Current;
}
InitializeCustomContext(paramContext);
}
/// <summary>
/// Initializes a new instance of the <see cref="XPathQueryManager"/> class.
/// </summary>
/// <param name="xPathDoc">An XmlDocument instance</param>
/// <param name="paramContext">A <see cref="XPathQueryManager.CustomQueryContext"/> instance for parameterized XPath expressions</param>
private XPathQueryManager(XPathDocument xPathDoc, XPathNavigator xNav, CustomQueryContext paramContext)
{
_XNav = xNav.Clone();
SetDocumentToParse(xPathDoc);
InitializeCustomContext(paramContext);
}
/// <summary>
/// Initializes a new instance of the <see cref="XPathQueryManager"/> class.
/// </summary>
/// <param name="xPathDoc">An XmlDocument instance</param>
public XPathQueryManager(XPathDocument xPathDoc)
{
SetDocumentToParse(xPathDoc);
_ParamContext = new CustomQueryContext(new NameTable());
}
private void InitializeCustomContext(CustomQueryContext paramContext)
{
IDictionary<string, string> namespaces = paramContext.GetNamespacesInScope(XmlNamespaceScope.ExcludeXml);
_ParamContext = new CustomQueryContext((NameTable) paramContext.NameTable);
_ParamContext.AddNamespace(namespaces);
}
/// <summary>
/// This method does some XPath specific initializations.
/// </summary>
private void initializeXPathObjects(Stream xmlStream)
{
try
{
_XPathDoc = new XPathDocument(xmlStream);
_XNav = _XPathDoc.CreateNavigator();
_ParamContext = new CustomQueryContext(new NameTable());
}
catch (XmlException ex)
{
Trace.TraceError("An XML specific exception occured " +
"while initializing XPathDocument and XPathNavigator in XPathQueryManager: " +
ex.Message);
throw ex;
}
catch (Exception ex)
{
Trace.TraceError("An exception occured " +
"while initializing XPathDocument and XPathNavigator in XPathQueryManager: " +
ex.Message);
throw ex;
}
finally
{
xmlStream.Dispose();
}
}
/// <summary>
/// This method deletes the current namespace context.
/// </summary>
public void ResetNamespaces()
{
_ParamContext = null;
}
/// <summary>
/// Initializes a new instance of the <see cref="XPathQueryManager"/> class.
/// </summary>
/// <param name="xPathDoc">An XmlDocument instance</param>
/// <param name="xIter">An XPathNodeIterator instance</param
/// <param name="paramContext">A <see cref="XPathQueryManager.CustomQueryContext"/> instance for parameterized XPath expressions</param>
private XPathQueryManager(XPathDocument xPathDoc, XPathNodeIterator xIter, CustomQueryContext paramContext)
: this(xPathDoc)
{
if (xIter != null)
_XNav = xIter.Current;
InitializeCustomContext(paramContext);
}
/// <summary>
/// Initializes a new instance of the <see cref="XPathQueryManager"/> class.
/// </summary>
/// <param name="xPathDoc">An XmlDocument instance</param>
/// <param name="xNav"></param>
/// <param name="paramContext">A <see cref="XPathQueryManager.CustomQueryContext"/> instance for parameterized XPath expressions</param>
private XPathQueryManager(XPathDocument xPathDoc, XPathNavigator xNav, CustomQueryContext paramContext)
{
_xNav = xNav.Clone();
SetDocumentToParse(xPathDoc);
InitializeCustomContext(paramContext);
}
/// <summary>
/// Initializes a new instance of the <see cref="XPathQueryManager"/> class.
/// </summary>
/// <param name="xPathDoc">An XmlDocument instance</param>
public XPathQueryManager(XPathDocument xPathDoc)
{
SetDocumentToParse(xPathDoc);
_paramContext = new CustomQueryContext(new NameTable());
}
/// <summary>
/// This method deletes the current namespace context.
/// </summary>
public void ResetNamespaces()
{
_paramContext = null;
}
