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//
// System.Web.UI.WebControls.XmlDataSourceView
//
// Authors:
// Ben Maurer (bmaurer@users.sourceforge.net)
//
// (C) 2003 Ben Maurer
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System.Collections;
using System.Collections.Specialized;
using System.Text;
using System.Xml;
namespace System.Web.UI.WebControls
{
public sealed class XmlDataSourceView : DataSourceView
{
ArrayList nodes;
XmlDataSource owner;
public XmlDataSourceView (XmlDataSource owner, string name)
: base (owner, name)
{
this.owner = owner;
}
public IEnumerable Select (DataSourceSelectArguments arguments)
{
return ExecuteSelect (arguments);
}
void DoXPathSelect ()
{
XmlNodeList selected_nodes = owner.GetXmlDocument ().SelectNodes (owner.XPath != "" ? owner.XPath : "/*/*");
nodes = new ArrayList (selected_nodes.Count);
foreach (XmlNode node in selected_nodes) {
if (node.NodeType == XmlNodeType.Element)
nodes.Add (node);
}
}
protected internal override IEnumerable ExecuteSelect (DataSourceSelectArguments arguments)
{
if (nodes == null)
DoXPathSelect();
ArrayList list = new ArrayList ();
int max = arguments.StartRowIndex + (arguments.MaximumRows > 0 ? arguments.MaximumRows : nodes.Count);
if (max > nodes.Count) max = nodes.Count;
for (int n = arguments.StartRowIndex; n < max; n++)
list.Add (new XmlDataSourceNodeDescriptor ((XmlElement) nodes [n]));
if (arguments.RetrieveTotalRowCount)
arguments.TotalRowCount = nodes.Count;
return list;
}
}
}
#endif
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