internal static IEnumerable <ITreeNode> SelectData(TableSelector selector, ITreeNodeCreator creator,
Action action, string stateId)
{
DataTable table = selector.HostTable;
int start = table == null ? 0 : table.Rows.Count;
action();
if (table == null)
{
table = selector.HostTable;
}
int end = table.Rows.Count;
for (int i = start; i < end; i++)
{
DataRow row = table.Rows[i];
DataRowTreeNode node = creator.CreateNode(row);
if (node.Id == stateId)
{
node.State = new TreeNodeState {
Opened = true, Selected = true
};
}
yield return(node);
}
}
private IEnumerable <ITreeNode> GetRootNodes(DataTable table, int start, int end)
{
for (int i = start; i < end; i++)
{
DataRow row = table.Rows[i];
DataRowTreeNode node = CreateNode(row);
yield return(node);
}
}
internal static IEnumerable <ITreeNode> GetDisplayTreeNodes(IEnumerable <ITreeNode> data, string id)
{
RegNameList <DataRowTreeNode> list = new RegNameList <DataRowTreeNode>();
foreach (DataRowTreeNode item in data)
{
list.Add(item);
}
DataRowTreeNode newNode = list[id];
while (newNode != null)
{
newNode = list[newNode.ParentId];
if (newNode != null)
{
newNode.HasChild = null;
}
}
return(list);
}