/// <summary>
/// Adds a category node into the treeview for the specified category
/// </summary>
/// <param name="tree"></param>
/// <param name="nodes"></param>
/// <param name="category"></param>
/// <returns></returns>
private CategoryTreeNode AddNodeForCategory(TreeView tree, TreeNodeCollection nodes, XmlConfigurationCategory category)
{
if (this.InvokeRequired)
{
return(this.Invoke(new AddNodeForCategoryInvoker(this.AddNodeForCategory), new object[] { tree, nodes, category }) as CategoryTreeNode);
}
bool isRootCategory = (nodes == null);
if (nodes == null)
{
if (tree != null)
{
nodes = tree.Nodes;
}
}
CategoryTreeNode n = new CategoryTreeNode(category.DisplayName);
n.BindToCategory(category);
nodes.Add(n);
if (isRootCategory)
{
n.ImageIndex = (int)CategoryImageIndexes.UnselectedWithSubCategories;
n.SelectedImageIndex = (int)CategoryImageIndexes.SelectedWithSubCategories;
}
else
{
/// ok, off the root, now base images on whether the category has sub categories or not,
/// and whether the category is selected
if (category.Categories.Count > 0)
{
n.ImageIndex = (int)CategoryImageIndexes.UnselectedWithSubCategories;
n.SelectedImageIndex = (int)CategoryImageIndexes.SelectedWithSubCategories;
}
else
{
n.ImageIndex = (int)CategoryImageIndexes.NoImage;
n.SelectedImageIndex = (int)CategoryImageIndexes.SelectedWithoutSubCategories;
}
}
return(n);
}
/// <summary>
/// Recursively adds nodes for the specified categories
/// </summary>
/// <param name="tree"></param>
/// <param name="nodes"></param>
/// <param name="categories"></param>
private void AddNodesForCategories(TreeView tree, TreeNodeCollection nodes, XmlConfigurationCategoryCollection categories)
{
if (this.InvokeRequired)
{
this.Invoke(new AddNodesForCategoriesInvoker(this.AddNodesForCategories), new object[] { tree, nodes, categories });
return;
}
tree.BeginUpdate();
try
{
foreach (XmlConfigurationCategory category in categories)
{
if (!category.Hidden)
{
// try and find an existing node that we can merge with
CategoryTreeNode n = this.FindNodeForCategory(nodes, category);
if (n == null)
{
n = this.AddNodeForCategory(tree, nodes, category);
}
if (n != null)
{
if (!n.IsBoundToCategory(category))
{
n.BindToCategory(category);
}
this.AddNodesForCategories(tree, n.Nodes, category.Categories);
}
}
}
}
catch (System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
finally
{
tree.EndUpdate();
}
}
/// <summary>
/// Selects the node's type descriptor into the property grid
/// </summary>
/// <param name="n"></param>
private void SelectPropertyDescriptorForNodeIntoPropertyGrid(CategoryTreeNode n)
{
if (this.InvokeRequired)
{
this.Invoke(new SelectPropertyDescriptorForNodeIntoPropertyGridInvoker(this.SelectPropertyDescriptorForNodeIntoPropertyGrid), new object[] { n });
return;
}
try
{
_propertyGrid.SelectedObject = null;
_labelCategory.Text = null;
if (n != null)
{
if (n.Categories.Count > 0)
{
XmlConfigurationOptionCollectionTypeDescriptor td = new XmlConfigurationOptionCollectionTypeDescriptor(n.Categories);
if (td != null)
{
_propertyGrid.SelectedObject = td;
}
foreach (DictionaryEntry entry in n.Categories)
{
XmlConfigurationCategory category = entry.Value as XmlConfigurationCategory;
if (category != null)
{
_labelCategory.Text = category.DisplayName;
break;
}
}
}
}
}
catch (System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
}
/// <summary>
/// Selects the node's type descriptor into the property grid
/// </summary>
/// <param name="n"></param>
private void SelectPropertyDescriptorForNodeIntoPropertyGrid(CategoryTreeNode n)
{
if (this.InvokeRequired)
{
this.Invoke(new SelectPropertyDescriptorForNodeIntoPropertyGridInvoker(this.SelectPropertyDescriptorForNodeIntoPropertyGrid), new object[] {n});
return;
}
try
{
_propertyGrid.SelectedObject = null;
_labelCategory.Text = null;
if (n != null)
{
if (n.Categories.Count > 0)
{
XmlConfigurationOptionCollectionTypeDescriptor td = new XmlConfigurationOptionCollectionTypeDescriptor(n.Categories);
if (td != null)
_propertyGrid.SelectedObject = td;
foreach(DictionaryEntry entry in n.Categories)
{
XmlConfigurationCategory category = entry.Value as XmlConfigurationCategory;
if (category != null)
{
_labelCategory.Text = category.DisplayName;
break;
}
}
}
}
}
catch(System.Exception systemException)
{
System.Diagnostics.Trace.WriteLine(systemException);
}
}
/// <summary>
/// Adds a category node into the treeview for the specified category
/// </summary>
/// <param name="tree"></param>
/// <param name="nodes"></param>
/// <param name="category"></param>
/// <returns></returns>
private CategoryTreeNode AddNodeForCategory(TreeView tree, TreeNodeCollection nodes, XmlConfigurationCategory category)
{
if (this.InvokeRequired)
{
return this.Invoke(new AddNodeForCategoryInvoker(this.AddNodeForCategory), new object[] {tree, nodes, category}) as CategoryTreeNode;
}
bool isRootCategory = (nodes == null);
if (nodes == null)
if (tree != null)
nodes = tree.Nodes;
CategoryTreeNode n = new CategoryTreeNode(category.DisplayName);
n.BindToCategory(category);
nodes.Add(n);
if (isRootCategory)
{
n.ImageIndex = (int)CategoryImageIndexes.UnselectedWithSubCategories;
n.SelectedImageIndex = (int)CategoryImageIndexes.SelectedWithSubCategories;
}
else
{
/// ok, off the root, now base images on whether the category has sub categories or not,
/// and whether the category is selected
if (category.Categories.Count > 0)
{
n.ImageIndex = (int)CategoryImageIndexes.UnselectedWithSubCategories;
n.SelectedImageIndex = (int)CategoryImageIndexes.SelectedWithSubCategories;
}
else
{
n.ImageIndex = (int)CategoryImageIndexes.NoImage;
n.SelectedImageIndex = (int)CategoryImageIndexes.SelectedWithoutSubCategories;
}
}
return n;
}