DataGridView中的C#自定义绑定(WinForm)

public class CustomBindingList<T> : BindingList<T>
{
    protected override bool SupportsSearchingCore => true;
    protected override int FindCore(PropertyDescriptor property, object key)
    {
        // 自定义查找逻辑
        for (int i = 0; i < Count; ++i)
        {
            T item = this[i];
            if (property.GetValue(item).Equals(key))
                return i;
        }
        return -1;
    }
}

public class MyDataItem
{
    public string Name { get; set; }
    public int Age { get; set; }
}

public partial class MainForm : Form
{
    private CustomBindingList<MyDataItem> _dataItems;

    public MainForm()
    {
        InitializeComponent();
        InitializeData();
        BindData();
    }

    private void InitializeData()
    {
        _dataItems = new CustomBindingList<MyDataItem>
        {
            new MyDataItem { Name = "Alice", Age = 30 },
            new MyDataItem { Name = "Bob", Age = 25 }
        };
    }

    private void BindData()
    {
        dataGridView1.DataSource = _dataItems;
    }
}

protected override void OnListChanged(ListChangedEventArgs e)
{
    base.OnListChanged(e);
    // 触发事件通知DataGridView数据已更改
}

protected override void OnAddingNew(AddingNewEventArgs e)
{
    // 进行数据验证
    if (!IsValid(e.NewObject))
    {
        e.Cancel = true; // 取消添加新项
        MessageBox.Show("数据验证失败！");
    }
    else
    {
        base.OnAddingNew(e);
    }
}

private bool IsValid(object item)
{
    // 实现数据验证逻辑
    return true;
}