110,545
社区成员
发帖
与我相关
我的任务
分享
CREATE TABLE [dbo].[Company] (
[Id] [int] IDENTITY (1, 1) Primary Key NOT NULL ,
[Levers] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[LevelId] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[Name] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL
)
public partial class Form1 : Form
{
public string rootId = "-1";
public Form1()
{
InitializeComponent();
AddRootCompany(rootId);
AddSubCompany();
}
/// <summary>
/// 添加总公司
/// </summary>
/// <param name="rootId"></param>
private void AddRootCompany(string rootId)
{
DataSet ds = new DataSet();
using (SqlConnection con = new SqlConnection("Data Source=localhost;uid=sa;pwd=saiyang;Database=CSDN"))
{
con.Open();
string strSQL = "select * from Company where Levers='" + rootId + "'";
using (SqlDataAdapter adapter = new SqlDataAdapter(strSQL, con))
{
adapter.Fill(ds);
}
TreeNode NewNode = new TreeNode();
NewNode.Text = ds.Tables[0].Rows[0]["Name"].ToString().Trim();
this.treeView1.Nodes.Add(NewNode);
}
}
/// <summary>
/// 添加子公司
/// </summary>
private void AddSubCompany()
{
DataSet ds = getMenuByLevel(rootId.ToString());
for (int j = 0; j < ds.Tables[0].Rows.Count; j++)
{
InitTreeCompanyChildNode(treeView1.Nodes[j], ds.Tables[0].Rows[j]["LevelId"].ToString());
}
}
/// <summary>
/// 获取层次级别
/// </summary>
/// <param name="getparams"></param>
/// <returns></returns>
public DataSet getMenuByLevel(string param)
{
DataSet ds = new DataSet();
using (SqlConnection con = new SqlConnection("Data Source=localhost;Initial Catalog=CSDN;User ID=sa;Password=saiyang"))
{
con.Open();
string strSQL = "select * from Company where Levers='" + param + "'";
using (SqlDataAdapter adapter = new SqlDataAdapter(strSQL, con))
{
adapter.Fill(ds);
}
}
return ds;
}
/// <summary>
/// 递归获取子节点
/// </summary>
/// <param name="PNode"></param>
/// <param name="classParentID"></param>
private void InitTreeCompanyChildNode(TreeNode pNode, string classParentID)
{
DataSet ds = getMenuByLevel(classParentID);
DataView dataView = new DataView();
dataView = ds.Tables[0].DefaultView;
foreach (DataRowView drv in dataView)
{
string id = drv["LevelId"].ToString();
string name = drv["Name"].ToString();
TreeNode NewNode = new TreeNode();
//将子公司添加到父节点下面
NewNode.Text = name;
pNode.Nodes.Add(NewNode);
InitTreeCompanyChildNode(NewNode, id);
}
}
}
private void bindTreeView4()
{
string sql = "select * from test";
DataTable dt = db.ExecuteDataTable(sql, CommandType.Text, null);
DataRow[] dr = dt.Select("levers='1'");
TreeNode Fisrt = new TreeNode("总公司");
treeView1.Nodes.Add(Fisrt);
for (int i = 0; i < dr.Length; i++)
{
TreeNode tn = new TreeNode();
tn.Text = dr[i]["name"].ToString();
tn.Name = dr[i]["levers"].ToString();
tn.Tag = dr[i]["leverid"].ToString();
if (dr[i]["levers"].ToString() == "1")
{
FillTree4(tn, dt);
}
Fisrt.Nodes.Add(tn);
}
}
private void bindTreeView4()
{
string sql = "select * from test";
DataTable dt = db.ExecuteDataTable(sql, CommandType.Text, null);
DataRow[] dr = dt.Select("levers='1'");
for (int i = 0; i < dr.Length; i++)
{
TreeNode tn = new TreeNode("总公司");
tn.Text = dr[i]["name"].ToString();
tn.Name = dr[i]["levers"].ToString();
tn.Tag = dr[i]["leverid"].ToString();
if (dr[i]["levers"].ToString() == "1")
{
FillTree4(tn, dt);
}
treeView1.Nodes.Add(tn);
}
}
private void FillTree4(TreeNode node, DataTable dt)
{
int levers = int.Parse(node.Name)+1;
string sql = "leverid like '%" + node.Tag.ToString() + "%' and levers="+levers+"";
DataRow[] dd = dt.Select(sql);
if (dd.Length >0)
{
for (int i = 0; i < dd.Length; i++)
{
TreeNode tn = new TreeNode();
if (dd[i]["leverid"].ToString().Substring(0, node.Tag.ToString().Length) == node.Tag.ToString())
{
tn.Text = dd[i]["name"].ToString();
tn.Name = dd[i]["levers"].ToString();
tn.Tag = dd[i]["leverid"].ToString();
if (dd[i]["levers"].ToString() == levers+"")
{
FillTree4(tn, dt);
}
node.Nodes.Add(tn);
}
}
}
}