Question

I have a datagridview in form 1 which contains unbound data. How can I transfer the data from datagridview in another datagridview2 which is located in form2? Give me some suggestions please!

Answer 1

If you had the DataGridView bound to a table, you would just set a reference in Form2 to the table. In your case, you probably want to have a reference to the actual DataGridView in the second form.

It’s not the best programming style from a maintenance perspective — it’s better to use a data source.

Here is a simple idea of one way to show the second DataGridView with the data from the first DataGridView. It’s not perfect, but it should show you the idea.

public Form2(DataGridView dgvFromFom1) {
  InitializeComponent();

  foreach (DataGridViewColumn dc in dgvFromForm1.Columns) {
    dataGridView1.Columns.Add(dc.Name, dc.HeaderText);
  }

  foreach (DataGridViewRow dr in dgvFromForm1.Rows) {
    Object[] newRow = new object[dr.Cells.Count];

    for (int i = 0; i < newRow.Length; i++) {
      newRow[i] = dr.Cells[i].Value;
    }
    dataGridView1.Rows.Add(newRow);
  }      
}

Again, though, this would be a lot easier using a DataSource.