C# TreeView节点的动态加载

try

{

SqlDataReader SalesPersonReader = GetSalePerson();

SalesOrdertreeView.ImageList = ImgList;

//遍历添加TreeView节点

while (SalesPersonReader.Read())

{

TreeNode SalesPersonNode = new TreeNode(SalesPersonReader.GetString(1));

SalesPersonNode.Tag = SalesPersonReader.GetInt32(0);

SalesPersonNode.ImageIndex = 0;

SalesPersonNode.StateImageIndex = 0;

SalesPersonNode.SelectedImageIndex = 0;

//添加业务员节点

SalesOrdertreeView.Nodes.Add(SalesPersonNode);

SqlDataReader SalesMarketReader = GetSalesMarket(SalesPersonReader.GetInt32(0));

//添加市场节点

while (SalesMarketReader.Read())

{

TreeNode SalesMarketNode = new TreeNode(SalesMarketReader.GetString(1));

SalesPersonNode.Nodes.Add(SalesMarketNode);

SalesMarketNode.Tag = SalesMarketReader.GetInt32(0);

SalesMarketNode.ImageIndex = 3;

SalesMarketNode.StateImageIndex = 3;

SalesMarketNode.SelectedImageIndex = 1;

SqlDataReader SalesCustomerReader = GetSalesCustomer(SalesMarketReader.GetInt32(0));

//添加客户节点

while (SalesCustomerReader.Read())

{

TreeNode SalesCustomerNode = new TreeNode(SalesCustomerReader.GetString(1));

SalesCustomerNode.Tag = SalesCustomerReader.GetInt32(0);

SalesCustomerNode.ImageIndex = 5;

SalesCustomerNode.StateImageIndex = 5;

SalesCustomerNode.SelectedImageIndex = 2;

SalesMarketNode.Nodes.Add(SalesCustomerNode);

}

SalesCustomerReader.Close();

}

SalesMarketReader.Close();

}

SalesPersonReader.Close();

}

catch (Exception EX)

{

MessageBox.Show(EX.Message);

}

finally

{

conn.Close();

}