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wpfdatagridtemplatescelltoolkit

BeginEdit of a specific Cell from code behind


Is possibile begin edit of a specific cell from code behind with DataGrid control (WPF Toolkit)?

I have to enable the celledittemplate of first cell of selected row after a button action...how can I do?


Solution

  • pls, try putting the code below in your button's on click event handler:

        DataGridCell cell = GetCell(1, 0);
        if (cell != null)
        {
            cell.Focus();
            yourDataGrid.BeginEdit();
        }
    

    below is implementation for the GetCell method taken from here Grabing controls from a DataGrid

    public DataGridCell GetCell(int row, int column)
    {
        DataGridRow rowContainer = GetRow(row);
    
        if (rowContainer != null)
        {
            DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(rowContainer);
    
            // try to get the cell but it may possibly be virtualized
            DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column);
            if (cell == null)
            {
                // now try to bring into view and retreive the cell
                gridPersons.ScrollIntoView(rowContainer, gridPersons.Columns[column]);
                cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column);
            }
            return cell;
        }
        return null;
    }
    
    public DataGridRow GetRow(int index)
    {
        DataGridRow row = (DataGridRow)gridPersons.ItemContainerGenerator.ContainerFromIndex(index);
        if (row == null)
        {
            // may be virtualized, bring into view and try again
            gridPersons.ScrollIntoView(gridPersons.Items[index]);
            row = (DataGridRow)gridPersons.ItemContainerGenerator.ContainerFromIndex(index);
        }
        return row;
    }
    
    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;
    } 
    

    hope this helps, regards