Casting DataGrid row to DataGridCellPresenter

Question

I am trying to change the background of cell using some condition. I am using the DataGrid.LoadingRow event to achieve it. But I get an error when casting a row to DataGridCellPresenter. The error is

The non-generic method 'System.Windows.FrameworkElement.GetVisualChild(int)' cannot be used with type arguments".

Below is a screenshot of the error

Please click to show Error Image

To change the cell background color refer [link](http://stackoverflow.com/questions/39543187/setting-datagrid-cell-background-based-on-its-value-c-wpf/39543691#39543691). Also its better give your complete code — Pabdev, Sep 28 '16 at 06:16
On your error... I usually cast with this format CastType variable = (CastType)function(...); — JohnG, Sep 28 '16 at 06:34
As per the error it seems like its not able to get the generic GetVisualChild method. Did you defined the generic method? [Link](http://stackoverflow.com/questions/14388262/edit-cell-event-getting-cell-value-and-position) — Pabdev, Sep 28 '16 at 06:35

score 0 · Answer 1 · answered Sep 28 '16 at 06:20

Changing cell background:

GetCell(dg, row, col).Background = Brushes.Yellow;

public DataGridCell GetCell(DataGrid dg, int row, int column)
    {
        DataGridRow rowContainer = GetRow(dg, row);
        if (rowContainer != null)
        {
            DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(rowContainer);
            if (presenter == null)
            {
                dg.ScrollIntoView(rowContainer, dg.Columns[column]);
                presenter = GetVisualChild<DataGridCellsPresenter>(rowContainer);
            }
            DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column);
            return cell;
        }
        return null;
    }

score 0 · Answer 2 · edited Jun 20 '20 at 09:12

0

I assume you are using AbZy's code. If yes, you are probably left out another function definition called: public static T GetVisualChild(Visual parent) where T : Visual

Besides GetVisualChild is a protected method in Visual Class. You can't call it as public.

edited Jun 20 '20 at 09:12

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answered Sep 28 '16 at 08:01

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Casting DataGrid row to DataGridCellPresenter

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