public void DoGridDrop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text))
{
// create a new category
SnippetCategory sc = new SnippetCategory();
sc.Name = "New Category";
SnippetCategories.Add(sc);
string Text = (string)e.Data.GetData(DataFormats.Text);
sc.AddSnippet("New Snippet", "", Text);
TabItem ti = (TabItem)SnippetCategoriesTabControl.ItemContainerGenerator.ContainerFromItem(sc);
if (ti != null)
{
ti.IsSelected = true;
}
// write the xaml file
WriteValues();
// don't allow drops here anymore
MainGrid.AllowDrop = false;
MainGrid.Drop -= new DragEventHandler(DoGridDrop);
}
}
public void DoDrop(object o, DragEventArgs e)
{
if (e.Data.GetDataPresent(typeof(Snippet)))
{
SnippetCategory sc = (SnippetCategory)(o as FrameworkElement).DataContext;
Snippet s = (Snippet)(e.Data.GetData(typeof(Snippet)));
// make sure we're not dragging into the same category
if (s.Category == sc)
{
return;
}
// otherwise, consider this a move so remove from the previous category
// and add to the new one
// remove from old category
s.Category.Snippets.Remove(s);
// add to the new one
sc.Snippets.Add(s);
// update the category
s.Category = sc;
// save the changes
WriteValues();
}
else if (e.Data.GetDataPresent(DataFormats.Text))
{
string Text = (string)e.Data.GetData(DataFormats.Text);
SnippetCategory sc = (SnippetCategory)(o as FrameworkElement).DataContext;
sc.AddSnippet("New Snippet", "", Text);
// write the xaml file
WriteValues();
}
// if the drop target is a TabItem, then expand it
if (o.GetType() == typeof(TabItem))
{
TabItem ti = (TabItem)o;
ti.IsSelected = true;
}
}
public void DoGridDrop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text))
{
// create a new category
SnippetCategory sc = new SnippetCategory();
sc.Name = "New Category";
SnippetCategories.Add(sc);
string Text = (string)e.Data.GetData(DataFormats.Text);
sc.AddSnippet("New Snippet", "", Text);
TabItem ti = (TabItem)SnippetCategoriesTabControl.ItemContainerGenerator.ContainerFromItem(sc);
if (ti != null) ti.IsSelected = true;
// write the xaml file
WriteValues();
// don't allow drops here anymore
MainGrid.AllowDrop = false;
MainGrid.Drop -= new DragEventHandler(DoGridDrop);
}
}