public static void SelectRowByIndex(System.Windows.Controls.DataGrid dataGrid, int rowIndex)
{
if (!dataGrid.SelectionUnit.Equals(System.Windows.Controls.DataGridSelectionUnit.FullRow))
{
throw new ArgumentException("The SelectionUnit of the DataGrid must be set to FullRow.");
}
if (rowIndex < 0 || rowIndex > (dataGrid.Items.Count - 1))
{
throw new ArgumentException(string.Format("{0} is an invalid row index.", rowIndex));
}
dataGrid.SelectedItems.Clear();
/* set the SelectedItem property */
object item = dataGrid.Items[rowIndex]; // = Product X
dataGrid.SelectedItem = item;
System.Windows.Controls.DataGridRow row = dataGrid.ItemContainerGenerator.ContainerFromIndex(rowIndex) as System.Windows.Controls.DataGridRow;
if (row == null)
{
/* bring the data item (Product object) into view
* in case it has been virtualized away */
dataGrid.ScrollIntoView(item);
row = dataGrid.ItemContainerGenerator.ContainerFromIndex(rowIndex) as System.Windows.Controls.DataGridRow;
}
//TODO: Retrieve and focus a DataGridCell object
}
public static void SelectCellsByIndexes(System.Windows.Controls.DataGrid dataGrid, IList <KeyValuePair <int, int> > cellIndexes)
{
if (!dataGrid.SelectionUnit.Equals(System.Windows.Controls.DataGridSelectionUnit.Cell))
{
throw new ArgumentException("The SelectionUnit of the DataGrid must be set to Cell.");
}
if (!dataGrid.SelectionMode.Equals(System.Windows.Controls.DataGridSelectionMode.Extended))
{
throw new ArgumentException("The SelectionMode of the DataGrid must be set to Extended.");
}
dataGrid.SelectedCells.Clear();
foreach (KeyValuePair <int, int> cellIndex in cellIndexes)
{
int rowIndex = cellIndex.Key;
int columnIndex = cellIndex.Value;
if (rowIndex < 0 || rowIndex > (dataGrid.Items.Count - 1))
{
throw new ArgumentException(string.Format("{0} is an invalid row index.", rowIndex));
}
if (columnIndex < 0 || columnIndex > (dataGrid.Columns.Count - 1))
{
throw new ArgumentException(string.Format("{0} is an invalid column index.", columnIndex));
}
object item = dataGrid.Items[rowIndex]; //= Product X
System.Windows.Controls.DataGridRow row = dataGrid.ItemContainerGenerator.ContainerFromIndex(rowIndex) as System.Windows.Controls.DataGridRow;
if (row == null)
{
dataGrid.ScrollIntoView(item);
row = dataGrid.ItemContainerGenerator.ContainerFromIndex(rowIndex) as System.Windows.Controls.DataGridRow;
}
if (row != null)
{
System.Windows.Controls.DataGridCell cell = GetCell(dataGrid, row, columnIndex);
if (cell != null)
{
System.Windows.Controls.DataGridCellInfo dataGridCellInfo = new System.Windows.Controls.DataGridCellInfo(cell);
dataGrid.SelectedCells.Add(dataGridCellInfo);
cell.Focus();
}
}
}
}
/// <summary>フォーカス取得時処理</summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DataGrid_GotFocus(object sender, RoutedEventArgs e)
{
if (dgJobConVariable.SelectedItems.Count < 1)
{
dgJobConVariable.SelectedItem = dgJobConVariable.Items[0];
}
else
{
if (_isTabKey)
{
System.Windows.Controls.DataGridRow dgrow = (System.Windows.Controls.DataGridRow)dgJobConVariable.ItemContainerGenerator.ContainerFromItem(dgJobConVariable.Items[dgJobConVariable.SelectedIndex]);
System.Windows.Controls.DataGridCell dgc = dgJobConVariable.Columns[0].GetCellContent(dgrow).Parent as System.Windows.Controls.DataGridCell;
FocusManager.SetFocusedElement(dgJobConVariable, dgc as IInputElement);
}
}
_isTabKey = false;
}
public DataGridRowAutomationPeer(System.Windows.Controls.DataGridRow owner) : base(default(System.Windows.FrameworkElement))
{
}
public static System.Windows.Controls.DataGridCell GetCell(System.Windows.Controls.DataGrid dataGrid, System.Windows.Controls.DataGridRow rowContainer, int column)
{
if (rowContainer != null)
{
System.Windows.Controls.Primitives.DataGridCellsPresenter presenter = FindVisualChild <System.Windows.Controls.Primitives.DataGridCellsPresenter>(rowContainer);
if (presenter == null)
{
/* if the row has been virtualized away, call its ApplyTemplate() method
* to build its visual tree in order for the DataGridCellsPresenter
* and the DataGridCells to be created */
rowContainer.ApplyTemplate();
presenter = FindVisualChild <System.Windows.Controls.Primitives.DataGridCellsPresenter>(rowContainer);
}
if (presenter != null)
{
System.Windows.Controls.DataGridCell cell = presenter.ItemContainerGenerator.ContainerFromIndex(column) as System.Windows.Controls.DataGridCell;
if (cell == null)
{
/* bring the column into view
* in case it has been virtualized away */
dataGrid.ScrollIntoView(rowContainer, dataGrid.Columns[column]);
cell = presenter.ItemContainerGenerator.ContainerFromIndex(column) as System.Windows.Controls.DataGridCell;
}
return(cell);
}
}
return(null);
}
