下面的代码对你会有启发的: 此示例显示如何使用 TreeNode 构造函数的一个重载版本。 [C#] // Create a new ArrayList to hold the Customer objects. private ArrayList customerArray = new ArrayList(); private void FillMyTreeView() { // Add customers to the ArrayList of Customer objects. for(int x=0; x<1000; x++) { customerArray.Add(new Customer("Customer" + x.ToString())); } // Add orders to each Customer object in the ArrayList. foreach(Customer customer1 in customerArray) { for(int y=0; y<15; y++) { customer1.CustomerOrders.Add(new Order("Order" + y.ToString())); } } // Display a wait cursor while the TreeNodes are being created. Cursor.Current = new Cursor("C:\\Cursors\\MyWait.cur");
// Suppress repainting the TreeView until all the objects have been created. treeView1.BeginUpdate(); // Clear the TreeView each time the method is called. treeView1.Nodes.Clear(); // Add a root TreeNode for each Customer object in the ArrayList. foreach(Customer customer2 in customerArray) { treeView1.Nodes.Add(new TreeNode(customer2.CustomerName));
// Add a child treenode for each Order object in the current Customer object. foreach(Order order1 in customer2.CustomerOrders) { treeView1.Nodes[customerArray.IndexOf(customer2)].Nodes.Add( new TreeNode(customer2.CustomerName + "." + order1.OrderID)); } } // Reset the cursor to the default for all controls. Cursor.Current = Cursors.Default; // Begin repainting the TreeView. treeView1.EndUpdate(); }
此示例显示如何使用 TreeNode 构造函数的一个重载版本。
[C#]
// Create a new ArrayList to hold the Customer objects.
private ArrayList customerArray = new ArrayList(); private void FillMyTreeView()
{
// Add customers to the ArrayList of Customer objects.
for(int x=0; x<1000; x++)
{
customerArray.Add(new Customer("Customer" + x.ToString()));
} // Add orders to each Customer object in the ArrayList.
foreach(Customer customer1 in customerArray)
{
for(int y=0; y<15; y++)
{
customer1.CustomerOrders.Add(new Order("Order" + y.ToString()));
}
} // Display a wait cursor while the TreeNodes are being created.
Cursor.Current = new Cursor("C:\\Cursors\\MyWait.cur");
// Suppress repainting the TreeView until all the objects have been created.
treeView1.BeginUpdate(); // Clear the TreeView each time the method is called.
treeView1.Nodes.Clear(); // Add a root TreeNode for each Customer object in the ArrayList.
foreach(Customer customer2 in customerArray)
{
treeView1.Nodes.Add(new TreeNode(customer2.CustomerName));
// Add a child treenode for each Order object in the current Customer object.
foreach(Order order1 in customer2.CustomerOrders)
{
treeView1.Nodes[customerArray.IndexOf(customer2)].Nodes.Add(
new TreeNode(customer2.CustomerName + "." + order1.OrderID));
}
} // Reset the cursor to the default for all controls.
Cursor.Current = Cursors.Default; // Begin repainting the TreeView.
treeView1.EndUpdate();
}
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