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copied!<p>pls, try putting the code below in your button's on click event handler:</p> <pre><code> DataGridCell cell = GetCell(1, 0); if (cell != null) { cell.Focus(); yourDataGrid.BeginEdit(); } </code></pre> <p>below is implementation for the GetCell method taken from here <a href="http://social.msdn.microsoft.com/forums/en-US/wpf/thread/63974f4f-d9ee-45af-8499-42f29cbc22ae" rel="noreferrer">Grabing controls from a DataGrid</a></p> <pre><code>public DataGridCell GetCell(int row, int column) { DataGridRow rowContainer = GetRow(row); if (rowContainer != null) { DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(rowContainer); // try to get the cell but it may possibly be virtualized DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column); if (cell == null) { // now try to bring into view and retreive the cell gridPersons.ScrollIntoView(rowContainer, gridPersons.Columns[column]); cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column); } return cell; } return null; } public DataGridRow GetRow(int index) { DataGridRow row = (DataGridRow)gridPersons.ItemContainerGenerator.ContainerFromIndex(index); if (row == null) { // may be virtualized, bring into view and try again gridPersons.ScrollIntoView(gridPersons.Items[index]); row = (DataGridRow)gridPersons.ItemContainerGenerator.ContainerFromIndex(index); } return row; } static T GetVisualChild<T>(Visual parent) where T : Visual { T child = default(T); int numVisuals = VisualTreeHelper.GetChildrenCount(parent); for (int i = 0; i < numVisuals; i++) { Visual v = (Visual)VisualTreeHelper.GetChild(parent, i); child = v as T; if (child == null) { child = GetVisualChild<T>(v); } if (child != null) { break; } } return child; } </code></pre> <p>hope this helps, regards</p>

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