/// <summary>
/// 加载下一级节点
/// </summary>
/// <param name="node">父节点</param>
private void AddDirs(TreeNode node)
{
try
{
string strNodeId = node.Name;
string sqlDir = string.Format("SELECT * FROM TTree WHERE parentId={0} ORDER BY Turn ASC", strNodeId);
//OleDbParameter[] ArrPara = new OleDbParameter[1];
//OleDbParameter p1 = new OleDbParameter("@parentId", OleDbType.Integer);
//p1.Value =Int32.Parse(strNodeId);
//ArrPara[0] = p1;
DataTable TbDir = GetTable(sqlDir);
int DirCount = TbDir.Rows.Count;
string name, text;
//加载
//for (int i = 0; i < DirCount; i++)
//{
// DataRow dr = TbDir.Rows[i];
// name = dr["NodeId"].ToString();
// text = dr["Title"].ToString();
// DirNode tempNode = new DirNode(text);
// tempNode.Name = name;
// node.Nodes.Add(tempNode);
//}
foreach (DataRow dr in TbDir.Rows)
{
name = dr["NodeId"].ToString();
text = dr["Title"].ToString();
DirNode tempNode = new DirNode(text);
tempNode.Name = name;
node.Nodes.Add(tempNode);
}
}
catch
{
}
}
private void AddSubDirs(DirNode node)
{
for (int i = 0; i < node.Nodes.Count; i++)
{
AddDirs(node.Nodes[i]);
}
node.SubDirectoriesAdded = true;
}
/// <summary>
/// 初始化树，第一次加载绑定第一层子节点（无parentid）及孙节点（两层）
/// 在展开节点之前再延迟加载节点
/// </summary>
private void iniTree()
{
string SQL = "SELECT * FROM TTree WHERE parentId=0 ORDER BY Turn ASC";
DataTable RootTb = GetTable(SQL);
int iLength = RootTb.Rows.Count;
for (int i = 0; i < iLength; i++)
{
DirNode root = new DirNode(RootTb.Rows[i]["Title"].ToString());
root.Name = RootTb.Rows[i]["NodeId"].ToString();
treeViewDir.Nodes.Add(root);
AddDirs(root);
}
}
/// <summary>
/// 加载下一级节点
/// </summary>
/// <param name="node">父节点</param>
private void AddDirs(TreeNode node)
{
try
{
string strNodeId = node.Name;
string sqlDir = string.Format("SELECT * FROM TTree WHERE parentId={0} ORDER BY Turn ASC", strNodeId);
//OleDbParameter[] ArrPara = new OleDbParameter[1];
//OleDbParameter p1 = new OleDbParameter("@parentId", OleDbType.Integer);
//p1.Value =Int32.Parse(strNodeId);
//ArrPara[0] = p1;
DataTable TbDir = GetTable(sqlDir);
int DirCount = TbDir.Rows.Count;
string name, text;
//加载
//for (int i = 0; i < DirCount; i++)
//{
// DataRow dr = TbDir.Rows[i];
// name = dr["NodeId"].ToString();
// text = dr["Title"].ToString();
// DirNode tempNode = new DirNode(text);
// tempNode.Name = name;
// node.Nodes.Add(tempNode);
//}
foreach (DataRow dr in TbDir.Rows)
{
name = dr["NodeId"].ToString();
text = dr["Title"].ToString();
DirNode tempNode = new DirNode(text);
tempNode.Name = name;
node.Nodes.Add(tempNode);
}
}
catch
{
}
}