WPF DataGrid 单元格突出显示

备注： DataGrid   Name="dgv1"  LoadingRow="Dgv1_OnLoadingRow" 

 

 

private void Dgv1_OnLoadingRow(object sender, DataGridRowEventArgs e)
        {
            e.Row.Loaded += Row_Loaded;
        }

        private void Row_Loaded(object sender, RoutedEventArgs e)
        {
            var dataGridRow = sender as DataGridRow;
            var dataRow = dataGridRow.Item as DataRowView;
            var str = dataRow["ExpiredQty"].ToString();
            if (MyConvertHelper.ToInt32(str, 0) > 0)
            {
                DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(dataGridRow);
                if (presenter == null)
                {
                    return;
                }
                var colIndex = 0;
                for (int index = 0; index < this.dgv1.Columns.Count; index++)
                {
                    var col = this.dgv1.Columns[index];
                    if (col.Header.ToString().Contains("近效期"))
                    {
                        colIndex = index;
                        break;
                    }
                }
                DataGridCell cell = presenter?.ItemContainerGenerator.ContainerFromIndex(colIndex) as DataGridCell;
                if (cell != null)
                {
                    //cell.Background = new SolidColorBrush(Colors.Red);
                    cell.Foreground = new SolidColorBrush(Colors.Red);
                }
            }

        }

        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;
        }

 

 

效果图：

 

 

 

参考：https://stackoverflow.com/questions/17894506/visualtreehelper-getchildrencount-return-0