| public static GetLocation ( XPathNode pageNode, int idxNode ) : int | ||
| pageNode | XPathNode | |
| idxNode | int | |
| return | int | |
/// <summary>
/// Construct a secondary location for this navigator. This location should only be used if
/// primary locations previously compared equal.
/// </summary>
private int GetSecondaryLocation()
{
// Is the current node virtualized?
if (_idxParent == 0)
{
// No, so secondary location is int.MinValue (always first)
return(int.MinValue);
}
// Yes, so secondary location should be derived from current node
// This happens with attributes nodes, namespace nodes, collapsed text nodes, and atomic values
switch (_pageCurrent[_idxCurrent].NodeType)
{
case XPathNodeType.Namespace:
// Namespace nodes come first (make location negative, but greater than int.MinValue)
return(int.MinValue + 1 + XPathNodeHelper.GetLocation(_pageCurrent, _idxCurrent));
case XPathNodeType.Attribute:
// Attribute nodes come next (location is always positive)
return(XPathNodeHelper.GetLocation(_pageCurrent, _idxCurrent));
default:
// Collapsed text nodes are always last
return(int.MaxValue);
}
}
private int GetPrimaryLocation()
{
if (this.idxParent == 0)
{
return(XPathNodeHelper.GetLocation(this.pageCurrent, this.idxCurrent));
}
return(XPathNodeHelper.GetLocation(this.pageParent, this.idxParent));
}
/// <summary>
/// Construct a primary location for this navigator. The location is an integer that can be
/// easily compared with other locations in the same document in order to determine the relative
/// document order of two nodes. If two locations compare equal, then secondary locations should
/// be compared.
/// </summary>
private int GetPrimaryLocation()
{
// Is the current node virtualized?
if (_idxParent == 0)
{
// No, so primary location should be derived from current node
return(XPathNodeHelper.GetLocation(_pageCurrent, _idxCurrent));
}
// Yes, so primary location should be derived from parent node
return(XPathNodeHelper.GetLocation(_pageParent, _idxParent));
}
private int GetSecondaryLocation()
{
if (this.idxParent == 0)
{
return(-2147483648);
}
switch (this.pageCurrent[this.idxCurrent].NodeType)
{
case XPathNodeType.Attribute:
return(XPathNodeHelper.GetLocation(this.pageCurrent, this.idxCurrent));
case XPathNodeType.Namespace:
return(-2147483647 + XPathNodeHelper.GetLocation(this.pageCurrent, this.idxCurrent));
}
return(0x7fffffff);
}
public override int GetHashCode()
{
return(XPathNodeHelper.GetLocation(_page, _idx));
}
