How to remove wpf grid sort arrow after clearing sort descriptions

问题

I click on a grid header to sort a column and then click a "Reset" button to clear the sort descriptions through its collection view. But the sort arrow icon still persists in the header. How to remove it?

回答1:

simple solution i can think of is

foreach (DataGridColumn column in DataGridView.Columns)
{
    column.SortDirection = null;
}

回答2:

I came across this question whilst trying to work out how to clear the sort from the grid completely. Thanks to [krishnaaditya] for the answering how to clear the sort arrow from the header.

using System.Windows.Data;
using System.ComponentModel;

ICollectionView view = CollectionViewSource.GetDefaultView(resultsGrid.ItemsSource);
                             if (view != null && view.SortDescriptions.Count>0)
                             {
                                 view.SortDescriptions.Clear();
                                 foreach (DataGridColumn column in resultsGrid.Columns)
                                 {
                                     column.SortDirection = null;
                                 };
                             }

来源：https://stackoverflow.com/questions/5401912/how-to-remove-wpf-grid-sort-arrow-after-clearing-sort-descriptions