c# – 当选择一个单元格时,如何突出显示DataGrid的ColumnHeader

检查我的例子：

XAML代码：

<DataGrid Name="myData"
                  AutoGenerateColumns="True"
                  SelectionMode="Extended"
                  SelectionUnit="Cell"                  
                  SelectedCellsChanged="myData_SelectedCellsChanged"                  
                  />

代码隐藏：

private void myData_SelectedCellsChanged(object sender,SelectedCellsChangedEventArgs e)
{
            foreach (var item in myData.Columns)
            {
                item.HeaderStyle = null;
            }

            if (myData.SelectedCells != null && myData.SelectedCells.Count != 0)
            {
                Style styleSelected = new Style();
                styleSelected.Setters.Add(new Setter(Border.BackgroundProperty,new SolidColorBrush(Colors.Orange)));

                foreach (var item in myData.SelectedCells)
                {
                    item.Column.HeaderStyle = styleSelected;
                }
            }
  }

如果要在列之间使用垂直线,还可以在styleSelected中设置Border.BorderBrushProperty和Border.BorderThicknessProperty.