/// <summary>
/// 行、列從0開始計數
/// </summary>
/// <param name="rowIndex"></param>
/// <param name="columnIndex"></param>
/// <param name="dg"></param>
/// <returns></returns>
public DataGridCell GetCell(DataGrid dg,int rowIndex, int columnIndex)
{
DataGridRow row = dg.ItemContainerGenerator.ContainerFromIndex(rowIndex) as DataGridRow;
DataGridCellsPresenter p = GetVisualChild<DataGridCellsPresenter>(row);
DataGridCell cell = p.ItemContainerGenerator.ContainerFromIndex(columnIndex) as DataGridCell;
return cell;
}
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;
}
使用
DataGridCell cell = GetCell(yourDataGrid,1, 1);
cell.Background = new SolidColorBrush(Colors.Red);