PIbd-32_Chubykina_P.P._COP_11/COP/ChubykinaComponents/Components/UserTreeView.cs

92 lines
3.0 KiB
C#
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;
namespace ChubykinaComponents.Components
{
public partial class UserTreeView : UserControl
{
public UserTreeView()
{
InitializeComponent();
}
private List<(string, bool)> hierarchy = new List<(string, bool)>();
public int SelectedNodeIndex
{
get
{
return treeView.SelectedNode?.Index ?? -1;
}
set
{
if (treeView.SelectedNode == null) treeView.SelectedNode = value >= 0 && value < treeView.Nodes.Count ? treeView.Nodes[value] : treeView.SelectedNode;
else treeView.SelectedNode = value >= 0 && value < treeView.SelectedNode.Nodes.Count ? treeView.SelectedNode.Nodes[value] : treeView.SelectedNode;
}
}
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public T? getSelecetedNodeValue<T>()
{
if (treeView.SelectedNode == null || treeView.SelectedNode.Nodes.Count > 0) return default(T);
TreeNode? node = treeView.SelectedNode;
var type = typeof(T);
var fields = type.GetFields();
var item = Activator.CreateInstance(type);
while (node != null)
{
var field = fields.FirstOrDefault(x => x.Name == node.Name);
if (field != null)
{
field.SetValue(item, node.Text);
}
node = node.Parent;
}
return item != null ? (T)item : default(T);
}
public void setHierarchy(List<(string, bool)> fields)
{
hierarchy = fields;
}
public void addItems<T>(List<T> items)
{
var type = typeof(T);
var fields = type.GetFields();
foreach (T item in items)
{
TreeNodeCollection nodes = treeView.Nodes;
for (int i = 0; i < hierarchy.Count; i++)
{
var field = fields.FirstOrDefault(x => x.Name.Equals(hierarchy[i].Item1));
if (field is not null)
{
var node = nodes.Find(field.Name, false).FirstOrDefault(x => x.Text == field.GetValue(item).ToString());
if (node is not null && !hierarchy[i].Item2)
{
nodes = node.Nodes;
}
else
{
TreeNode newNode = nodes.Add(field.Name, field.GetValue(item).ToString());
nodes = newNode.Nodes;
}
}
}
}
}
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public void clear()
{
treeView.Nodes.Clear();
}
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}
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}