/// <summary>Selects a column for ordering. </summary>
/// <param name="column">The column. </param>
/// <param name="ascending">The value indicating whether to sort the column ascending; otherwise descending. </param>
/// <returns>Returns true if column could be changed. </returns>
public bool SelectColumn(DataGridColumnBase column, bool ascending)
{
if (column.CanSort)
{
var oldColumn = SelectedColumn;
if (oldColumn != null)
{
oldColumn.IsSelected = false;
}
SelectedColumn = column;
SelectedColumn.IsSelected = true;
SelectedColumn.IsAscending = ascending;
UpdateItemsOrder();
OnOrderChanged();
return(true);
}
return(false);
}
/// <summary>Selects a column for ordering.
/// If the column is not selected the the default ordering is used (IsAscendingDefault property).
/// If the column is already selected then the ordering direction will be inverted. </summary>
/// <param name="column">The column. </param>
/// <returns>Returns true if column could be changed. </returns>
public bool SelectColumn(DataGridColumnBase column)
{
return(SelectColumn(column, column == SelectedColumn ? !column.IsAscending : column.IsAscendingDefault));
}
internal DataGridOrderChangedEventArgs(DataGridColumnBase column)
{
Column = column;
}