public void DrawTree(TreeListNode ParentNode)
{
using (new WaitCursor())
{
string ParentValue = ParentNode == null ?
(string)TreeList.RootValue : (string)((object[])ParentNode.Tag)[0];
IList <BaseEntity> ListEntity =
Dp.ListFastLoadEntities(Td.ClassType, null,
string.Join(",", Columns), string.Concat(
TreeList.ParentFieldName, "=@0",
SqlCondition.Length > 0 ?
" AND " + SqlCondition :
string.Empty), OrderField,
new FieldParam("0", ParentValue));
if (ParentNode != null)
{
((object[])ParentNode.Tag)[1] = true;
}
if (ListEntity == null || ListEntity.Count == 0)
{
if (ParentNode != null)
{
ParentNode.HasChildren = false;
}
return;
}
object[] NodeValue = new object[Columns.Length - 1];
TreeList.BeginUnboundLoad();
try
{
OnTreeClick = true;
foreach (BusinessEntity Entity in ListEntity)
{
for (int i = 1; i < Columns.Length; i++)
{
NodeValue[i - 1] = Td.GetFieldDef(Columns[i])
.GetValue(Entity);
}
TreeListNode Node = TreeList.AppendNode(NodeValue, ParentNode);
Node.Tag = new object[2] {
Td.GetFieldDef(Columns[0]).GetValue(Entity), false
};
if (onAfterAddNode != null)
{
onAfterAddNode(Node, Entity);
}
}
}
finally
{
TreeList.EndUnboundLoad();
OnTreeClick = false;
}
}
}