Binding DataGridView in windows forms to a list>

Question

I have a collection of custom objects in format List of List of T , i.e, a List Of list of custom objects. I need to bind this collection to a datagridview control in windows fo

Answer 1

Presuming that your nested list has been populated, and in addition to your DataGridView, your form has a Previous and Next button for changing pages: you could use the buttons to change an index which indicates which nested list is to be used as the DataSource.

public List<List<MyObject>> Pages { get; set; } // Populated elsewhere...
public int PageIndex { get; set; }

private void ChangePage()
{
  this.PreviousButton.Enabled = this.PageIndex > 0;
  this.NextButton.Enabled = this.PageIndex < this.Pages.Count - 1;
  this.dataGridView1.DataSource = this.Pages[this.PageIndex];
}

private void PreviousButton_Click(object sender, EventArgs e)
{
  this.PageIndex--;
  this.ChangePage();
}

private void NextButton_Click(object sender, EventArgs e)
{
  this.PageIndex++;
  this.ChangePage();
}