/// <summary>
/// Initializes a new instance of the <see cref="TreeViewPropertyBuilderForm"/> class.
/// </summary>
/// <param name="treeView">The tree view.</param>
public PropertyBuilderForm(ActiveUp.WebControls.TreeView treeView)
{
InitializeComponent();
_treeView = treeView;
InitUI();
_tvTree.Focus();
this.ActiveControl = _tvTree;
}
public override bool EditComponent(ITypeDescriptorContext context, object component, IWin32Window owner)
{
ActiveUp.WebControls.TreeView treeView = component as ActiveUp.WebControls.TreeView;
if (treeView == null)
{
throw new ArgumentException("Component must be a ActiveUp.ActiveTreeView.TreeView object.", "component");
}
IServiceProvider site = treeView.Site;
IComponentChangeService changeService = null;
DesignerTransaction transaction = null;
bool changed = false;
try
{
if (site != null)
{
IDesignerHost designerHost = (IDesignerHost)site.GetService(typeof(IDesignerHost));
transaction = designerHost.CreateTransaction("Property Builder");
changeService = (IComponentChangeService)site.GetService(typeof(IComponentChangeService));
if (changeService != null)
{
try
{
changeService.OnComponentChanging(treeView, null);
}
catch (CheckoutException ex)
{
if (ex == CheckoutException.Canceled)
{
return(false);
}
throw ex;
}
}
}
try
{
PropertyBuilderForm form = new PropertyBuilderForm(treeView);
if (form.ShowDialog(owner) == DialogResult.OK)
{
changed = true;
}
}
catch (Exception ex)
{
MessageBox.Show("ERROR : " + ex.ToString());
}
finally
{
if (changed && changeService != null)
{
changeService.OnComponentChanged(treeView, null, null, null);
}
}
}
finally
{
if (transaction != null)
{
if (changed)
{
transaction.Commit();
}
else
{
transaction.Cancel();
}
}
}
return(changed);
}
