Reload DataGridView in C #

Question

Reload DataGridView in C #

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#1 by (5 votes)

3

I'm creating an event from a button in which it creates a Product object and adds it to a list of Products and using this list to populate the DataSource of a dataGridView, but the DataGridView always keeps appearing a single product.

private void button3_Click(object sender, EventArgs e)
{
      Produto produto = new Produto();

      venda.ItensVenda.Add(produto);

      dataGridView1.DataSource = venda.ItensVenda;

      dataGridView1.Refresh();
}

c# .net lista datagridview

asked by anonymous 09.01.2017 / 18:43

1 answer

Jquery keyboard event does not respond Map with dynamic size at div height

score 5 · Accepted Answer

The reference to datasource still continues, even after another click. Force cleanup for a successful upgrade.

Add the line:

dataGridView1.DataSource = "";

private void button3_Click(object sender, EventArgs e)
{
      Produto produto = new Produto();

      venda.ItensVenda.Add(produto);

      dataGridView1.DataSource = "";
      dataGridView1.DataSource = venda.ItensVenda;

      dataGridView1.Refresh();
}

Response Supplementation

Another way to do this is to use BindingList in the creation of its object ItensVenda . In this way, the data will be bound automatically by dispensing with DataSource = "" .