I have a DataGridView having one DataGridViewComboBoxColumn and I have populated that ComboBox but after clear that DataGridView I hav
DataGridView
DataGridViewComboBoxColumn
You can do this in CellFormatting event
CellFormatting
void dataGridView_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e) { if (e.ColumnIndex == 0) //Index of your DataGridViewComboBoxColumn { e.Value = "Default Value"; } }