How to navigate to a hidden column on the row being edited by the DataGridView?

withsprite

VS DataGridView.Columns [1] .Visible = false;

After binding the DataGridView, while inputting content on the bottom empty row (ie, a new row), how to automatically assign values ​​to Columns [1] of this row through code.
I don't know how to locate that cell.
What if I create multiple rows?

fenril

datagridview.currentrow.columns[1].value="a value";//The cell of a column in the current row
Multiple lines need to use loop
for(i=0;i<this.datagridview.rows.count;i++)
{

datagridview.rows[i].columns[1].value="a value"
}

withsprite

The foundation is not good, thank you for your help! Let me try