/// <summary>
/// Delete an XML node
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void DeleteItem(Object sender, RoutedEventArgs e)
{
string message = Internal.Metadata.Properties.Resources.MSGBOX_DELETE_MSG;
string caption = Internal.Metadata.Properties.Resources.MSGBOX_DELETE_CAPTION;
MessageBoxButton button = MessageBoxButton.OKCancel;
MessageBoxImage icon = MessageBoxImage.Question;
// show dialog
MessageBoxResult result = ArcGIS.Desktop.Internal.Framework.DialogManager.ShowMessageBox(message, caption, button, icon);
switch (result)
{
case MessageBoxResult.Cancel:
return;
}
// Mark metadata dirty first
MetadataEditorViewModel vm = Utils.GetMetadataEditorViewModel(this) as MetadataEditorViewModel;
if (vm != null)
{
vm.Metadata_NodeChanged(null, null);
}
// get tag
string tag = Utils.GetStringTag(sender);
// get the data context and apply fill to each element
IEnumerable <XmlNode> data = Utils.GetXmlDataContext(Utils.GetDataContext(sender));
if (null != data)
{
foreach (XmlNode node in data)
{
if ("deleteParent".Equals(tag))
{
// get the root control first, b/c the data context
// to which the current control is bound
// will be deleted,
// then updateDataContext will fail, b/c
// the root MetadataEditorControl can't be found in the tree anymore
var mec = Utils.GetMetadataEditorControl(this);
XmlNode parentNode = node.ParentNode;
XmlNode deletedNode = parentNode.ParentNode.RemoveChild(parentNode);
if (null == deletedNode || deletedNode != parentNode)
{
throw new MetadataException("Error deleting node!");
}
MetadataEditorViewModel.UpdateDataContext(mec);
break;;
}
else
{
// remove the element from the tree
XmlNode deletedNode = node.ParentNode.RemoveChild(node);
if (null == deletedNode || deletedNode != node)
{
throw new Exception("Error deleting node!");
}
MetadataEditorViewModel.UpdateDataContext(this as DependencyObject);
break;
}
}
}
}
