GridViewDataControl_ColumnDisplayIndexOutOfRange

[Rieni De Rijke]

When I open an PrintPreviewDialog all works well, but...

...when I change the column-order by dragging a column to an other place, opening of the Printpreview gives an:
System.ArgumentOutOfRangeException: GridViewDataControl_ColumnDisplayIndexOutOfRange.

The same happens in your "RadControls for WPF-Demo":  GridView/WPF/Printing:
Change the column-order and click "printpreview".

[Rieni De Rijke]

My colleges have the same problem with their RadControls for WPF-Demo-Application.
Are we the only ones...?

When I open an PrintPreviewDialog all works well, but...

...when I change the column-order by dragging a column to an other place, opening of the Printpreview gives an:
System.ArgumentOutOfRangeException: GridViewDataControl_ColumnDisplayIndexOutOfRange.

The same happens in your "RadControls for WPF-Demo":  GridView/WPF/Printing:
Change the column-order and click "printpreview".

[Vlad]

Hi,

Here is how to change ToPrintFriendlyGrid method in our example to fix this:

static GridViewDataControl ToPrintFriendlyGrid(GridViewDataControl source)
{
    RadGridView grid = new RadGridView();

    grid.ItemsSource = source.ItemsSource;
    grid.RowIndicatorVisibility = Visibility.Collapsed;
    grid.ShowGroupPanel = false;
    grid.CanUserFreezeColumns = false;
    grid.IsFilteringAllowed = false;
    grid.AutoExpandGroups = true;
    grid.AutoGenerateColumns = false;

    foreach (GridViewDataColumn column in source.Columns.OfType<GridViewDataColumn>())
    {
        GridViewDataColumn newColumn = new GridViewDataColumn();
        newColumn.Width = column.ActualWidth;
        newColumn.DataMemberBinding = new System.Windows.Data.Binding(column.UniqueName);
        grid.Columns.Add(newColumn);
    }

    foreach (GridViewDataColumn column in grid.Columns.OfType<GridViewDataColumn>())
    {
        GridViewDataColumn sourceColumn = (from c in source.Columns.OfType<GridViewDataColumn>()
                                          where c.UniqueName == column.UniqueName
                                          select c).FirstOrDefault();
        if (sourceColumn != null)
        {
            column.DisplayIndex = sourceColumn.DisplayIndex;
        }
    }

    StyleManager.SetTheme(grid, StyleManager.GetTheme(grid));

    grid.SortDescriptors.AddRange(source.SortDescriptors);
    grid.GroupDescriptors.AddRange(source.GroupDescriptors);
    grid.FilterDescriptors.AddRange(source.FilterDescriptors);

    return grid;
}

Greetings,
Vlad
the Telerik team

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[Rieni De Rijke]

Thank you for the fix!
Now it works fine.

[Paul]

The updated code does not work unless all of your columns are data columns.  Setting the DisplayIndex of the columns fails otherwise.  The following update will work:

int i = 0;
foreach (GridViewDataColumn column in grid.Columns.OfType<GridViewDataColumn>().OrderBy(e => e.DisplayIndex))
{
   GridViewDataColumn sourceColumn = (from c in source.Columns.OfType<GridViewDataColumn>()
                                      where c.UniqueName == column.UniqueName
                                      select c).FirstOrDefault();
   if (sourceColumn != null)
   {
      column.DisplayIndex = i;
      i++;
   }
}