/// <summary>
/// Called when the group summary property is changed.
/// </summary>
/// <param name="dependencyObject">The dependency object.</param>
/// <param name="e">The <see cref="DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void OnGroupSummaryPropertyChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
DataGrid dataGrid = (DataGrid)dependencyObject;
DataGridGroupSummaryCollection groupSummary = GetGroupSummary(dataGrid);
DataGridGroupSummaryCollection groupSummaryInternal = new DataGridGroupSummaryCollection();
foreach (DataGridColumn dataGridColumn in dataGrid.Columns)
{
DataGridGroupSummary item = groupSummary.FirstOrDefault(x => x.Column == dataGridColumn);
if (item == null)
{
groupSummaryInternal.Add(
new DataGridGroupSummary()
{
Column = dataGridColumn,
Template = new DataTemplate()
});
}
else
{
groupSummaryInternal.Add(
new DataGridGroupSummary()
{
Column = dataGridColumn,
Template = item.Template
});
}
}
SetGroupSummaryInternal(dataGrid, groupSummaryInternal);
}
/// <summary>
/// Sets the internal group summary representing all columns.
/// </summary>
/// <param name="dataGrid">The data grid.</param>
/// <param name="value">The value.</param>
private static void SetGroupSummaryInternal(DataGrid dataGrid, DataGridGroupSummaryCollection value)
{
dataGrid.SetValue(GroupSummaryInternalPropertyKey, value);
}
/// <summary>
/// Sets the group summary items.
/// </summary>
/// <param name="dataGrid">The data grid.</param>
/// <param name="value">The value.</param>
public static void SetGroupSummary(DataGrid dataGrid, DataGridGroupSummaryCollection value)
{
dataGrid.SetValue(GroupSummaryProperty, value);
}
