Inserts a DataGridViewRow into the collection at the specified index.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
value is not a DataGridViewRow.
index is less than zero or greater than the number of rows in the collection.
value is null.
The associated DataGridView control is performing one of the following actions that temporarily prevents new rows from being added:
This method is being called from a handler for one of the following DataGridView events:
The DataGridView has no columns.
The DataGridView property of the value is not null.
value has a Selected property value of true.
This operation would insert a frozen row after unfrozen rows or an unfrozen row before frozen rows.
value has more cells than there are columns in the control.
Rows in the control are not automatically sorted when new rows are added. To sort new rows into their correct position, call the DataGridView.Sort method in a DataGridView.RowsAdded event handler. You might also want to call the DataGridView.Sort method in a CellValueChanged event handler to sort the rows when the user modifies a cell.