Add Method (Object[])
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DataGridViewRowCollection.Add Method (Object[])


Adds a new row to the collection, and populates the cells with the specified objects.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public virtual int Add(
	params object[] values


Type: System.Object[]

A variable number of objects that populate the cells of the new DataGridViewRow.

Return Value

Type: System.Int32

The index of the new row.

Exception Condition

values is null.


The associated DataGridView control is performing one of the following actions that temporarily prevents new rows from being added:

  • Selecting all cells in the control.

  • Clearing the selection.


This method is being called from a handler for one of the following DataGridView events:


The VirtualMode property of the DataGridView is set to true.

- or -

The DataSource property of the DataGridView is not null.


The DataGridView has no columns.


The row returned by the DataGridView.RowTemplate property has more cells than there are columns in the control.


This operation would add a frozen row after unfrozen rows.

The Add(Object[]) method adds an unshared row to the DataGridViewRowCollection. For more information, see Best Practices for Scaling the Windows Forms DataGridView 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.

.NET Framework
Available since 2.0
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