//public static T GetNodeData<T>(this TreeNode @this) where T : ITreeNodeData
public static ITreeNodeData GetNodeData(this TreeNode @this)
{
if (@this == null)
{
return(null);
}
TreeNodeProxy nodeProxy = @this.GetNodeProxy();
return(nodeProxy.GetNodeData());
}
public static TreeNode CreateNewItemNode(this LabelEditEnhancedTreeView @this)
{
ITreeNodeData treeNodeData = @this.CreateNewNodeData(TreeNodeProxy.NEW_ITEM_NODE_TEXT);
TreeNode treeNode = CreateNode(@this, treeNodeData);
treeNode.ForeColor = Color.Gray;
treeNode.ImageIndex = 0;
treeNode.StateImageIndex = 0;
treeNode.SelectedImageIndex = 0;
TreeNodeProxy treeNodeProxy = treeNode.GetNodeProxy();
treeNodeProxy.IsNewItemNode = true;
return(treeNode);
}
public static TreeNode CreateNode <T>(this LabelEditEnhancedTreeView @this, T nodeData)
where T : ITreeNodeData
{
string displayValue = nodeData == null ? string.Empty : nodeData.DisplayValue;
TreeNode treeNode = @this.Nodes.Add(displayValue);
bool isNewItemNode = nodeData == null;
TreeNodeProxy nodeProxy = new TreeNodeProxy <T>(nodeData, isNewItemNode);
int iconIndex = isNewItemNode ? 0 : nodeData.IconIndex;
treeNode.ImageIndex = iconIndex;
treeNode.StateImageIndex = iconIndex;
treeNode.SelectedImageIndex = iconIndex;
treeNode.SetNodeProxy(nodeProxy);
return(treeNode);
}
internal static void SetNodeProxy(this TreeNode @this, TreeNodeProxy nodeProxy)
{
@this.Tag = nodeProxy;
}