How to programmatically set cell value in DataGridView?

Question

I have a DataGridView. Some of the cells receive their data from a serial port: I want to shove the data into the cell, and have it update the underlying bound object.

Answer 1

If the DataGridView has been populated by DataSource = x (i.e. is databound) then you need to change the bound data, not the DataGridView cells themselves.

One way of getting to that data from a known row or column is thus:

(YourRow.DataBoundItem as DataRowView).Row['YourColumn'] = NewValue;

Answer 2

in VB you can use this one

Dim selectedRow As DataRowView
selectedRow = dg.Rows(dg.CurrentCell.RowIndex).DataBoundItem
selectedRow("MyProp") = "myValue"
dg.NotifyCurrentCellDirty(True)

thanks to saeed serpooshan for last row