public bool IsSelected(TreeNode tn)
{
Guid id;
NodeGuidDictionary.TryGetValue(tn, out id);
return(IsSelected(id));
}
private void AddEventHandlers()
{
ViewTreeLink.LinkClicked += delegate { ViewTree(); };
ViewSearchLink.LinkClicked += delegate { ViewSearchResults(); };
Results.MouseDown +=
delegate(object sender, MouseEventArgs e)
{
ListViewItem item = Results.HitTest(e.X, e.Y).Item;
if (item != null)
{
if (Results.HitTest(e.X, e.Y).Location == ListViewHitTestLocations.Image)
{
string name = item.Text;
var id = new Guid(item.SubItems[2].Text);
var taxonomy = new TaxonomyStruct {
Name = name, ID = id
};
AddToSelected(taxonomy);
}
if (Results.HitTest(e.X, e.Y).SubItem == item.SubItems[1])
//if mouse click on "view in tree"
{
TreeNode node;
GuidNodeDictionary.TryGetValue(new Guid(item.SubItems[2].Text), out node);
ViewTree();
ExpandTreeTo(node);
}
}
};
Results.ItemSelectionChanged +=
delegate(object sender, ListViewItemSelectionChangedEventArgs e)
{
foreach (ListViewItem i in Results.Items)
{
if (i != e.Item)
{
i.BackColor = Color.Empty;
i.Selected = false;
}
}
//e.Item.Selected = true;
//e.Item.BackColor = Color.Yellow;
};
Results.MouseMove +=
delegate(object sender, MouseEventArgs e)
{
ListViewItem item = Results.HitTest(e.X, e.Y).Item;
if (item != null)
{
if (Results.HitTest(e.X, e.Y).SubItem == item.SubItems[1] ||
Results.HitTest(e.X, e.Y).Location == ListViewHitTestLocations.Image)
{
Cursor.Current = Cursors.Hand;
}
}
};
Selected.MouseDown +=
delegate(object sender, MouseEventArgs e)
{
ListViewItem item = Selected.HitTest(e.X, e.Y).Item;
if (Selected.HitTest(e.X, e.Y).Location == ListViewHitTestLocations.Image)
{
string name = item.Text;
var id = new Guid(item.SubItems[1].Text);
var taxonomy = new TaxonomyStruct {
Name = name, ID = id
};
RemoveFromSelected(taxonomy);
}
};
Keywords.KeyDown +=
delegate(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Up)
{
if (Results.SelectedItems.Count != 0)
{
int index = Results.SelectedIndices[0];
if (index > 0)
{
Results.Items[index].Selected = false;
Results.Items[index].BackColor = Color.Empty;
Results.Items[index - 1].Selected = true;
Results.Items[index - 1].BackColor = Color.Yellow;
}
}
}
if (e.KeyCode == Keys.Down)
{
if (Results.SelectedItems.Count != 0)
{
int index = Results.SelectedIndices[0];
if (index < Results.Items.Count - 1)
{
Results.Items[index].Selected = false;
Results.Items[index].BackColor = Color.Empty;
Results.Items[index + 1].Selected = true;
Results.Items[index + 1].BackColor = Color.Yellow;
}
}
}
if (e.KeyCode == Keys.Enter)
{
if (Results.SelectedItems.Count == 0)
{
PopulateResults();
ViewSearchResults();
}
else
{
string name = Results.SelectedItems[0].Text;
Guid guid = new Guid(Results.SelectedItems[0].SubItems[2].Text);
TaxonomyStruct ts = new TaxonomyStruct {
ID = guid, Name = name
};
if (!AddToSelected(ts))
{
RemoveFromSelected(ts);
}
Keywords.Text = "";
}
}
};
Keywords.TextChanged +=
delegate
{
if (Keywords.TextLength > 1)
{
PopulateResults();
ViewSearchResults();
if (Results.Items.Count > 0)
{
Results.Items[0].BackColor = Color.Yellow;
Results.Items[0].Selected = true;
}
}
};
ResultsTree.MouseDown +=
delegate(object sender, MouseEventArgs e)
{
if (ResultsTree.HitTest(e.X, e.Y).Location == TreeViewHitTestLocations.Image)
{
TreeNode node = ResultsTree.HitTest(e.X, e.Y).Node;
string name = node.Text;
Guid id;
NodeGuidDictionary.TryGetValue(node, out id);
var ts = new TaxonomyStruct {
Name = name, ID = id
};
AddToSelected(ts);
}
};
}