Index -1 does not have a value

Hello dear, good afternoon. I have a small problem that I no longer know how to solve, I expose

I need to go from one DataGridView to another for this I have the following, I will only show you the image of the form to not be so extensive.

This is the code:

An Aux List

A List of the AuxProduct Class

The datasource of the datagrid on the right is this

The button code that goes from one datagridview to another is this

private void button1_Click(object sender, EventArgs e)
{
foreach (DataGridViewRow fila in DataGridViewPreciosAntiguo.Rows)
{
AuxProducto auxProducto = new AuxProducto();
if (Convert.ToBoolean(fila.Cells["Select"].Value))
{
auxProducto.ProductoId = (int)fila.Cells["Id"].Value;
auxProducto.Codigo = fila.Cells["Codigo"].Value.ToString();
auxProducto.ProductoDescripcion = fila.Cells["ProductoDescripcion"].Value.ToString();
auxProducto.PrecioVenta = 0.00M;
ListaAuxProducto.Add(auxProducto);
DataGridViewPrecioNuevo.DataSource = null;
DataGridViewPrecioNuevo.DataSource = ListaAuxProducto;
}
}
}

As you can see, everything does as it should be done, or maybe there is some error please let me know.

In the form on the right, I need to add a new price in the new column, when I click on any part of the datagridview I get the error

where can my mistake be please.

I appreciate the collaboration,

Roberto

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Salman Beg6y ago
Accepted answer
Hey it is showing indexoutofrange exception and that error probably coming in FrmLogin. If you debug properly then you can find where the indexoutofrange exception generating. Thanks.