/// <summary>
/// Sets up the context for expression execution.
/// </summary>
private static XmlNamespaceManager PrepareContext(XPathNavigator source,
XmlNamespaceManager context, XmlPrefix[] prefixes, XPathVariable[] variables)
{
XmlNamespaceManager ctx = context;
// If we have variables, we need the dynamic context.
if (variables != null)
{
DynamicContext dyn = ctx != null ? new DynamicContext(ctx) : new DynamicContext();
// Add the variables we received.
foreach (XPathVariable var in variables)
{
dyn.AddVariable(var.Name, var.Value);
}
ctx = dyn;
}
// If prefixes were added, append them to context.
if (prefixes != null)
{
if (ctx == null)
{
ctx = new XmlNamespaceManager(source.NameTable);
}
foreach (XmlPrefix prefix in prefixes)
{
ctx.AddNamespace(prefix.Prefix, prefix.NamespaceUri);
}
}
return(ctx);
}
/// <summary>
/// Sets up the context for expression execution.
/// </summary>
private static XmlNamespaceManager PrepareContext(XPathNavigator source,
XmlNamespaceManager context, XmlPrefix[] prefixes, XPathVariable[] variables)
{
XmlNamespaceManager ctx = context;
// If we have variables, we need the dynamic context.
if (variables != null)
{
DynamicContext dyn;
if (ctx != null)
dyn = new DynamicContext(ctx);
else
dyn = new DynamicContext();
// Add the variables we received.
foreach (XPathVariable var in variables)
{
dyn.AddVariable(var.Name, var.Value);
}
ctx = dyn;
}
// If prefixes were added, append them to context.
if (prefixes != null)
{
if (ctx == null) ctx = new XmlNamespaceManager(source.NameTable);
foreach (XmlPrefix prefix in prefixes)
ctx.AddNamespace(prefix.Prefix, prefix.NamespaceURI);
}
return ctx;
}
