diff --git a/samples/ControlCatalog/Pages/DataGridPage.xaml b/samples/ControlCatalog/Pages/DataGridPage.xaml
index cacc2204bd..6817d0698e 100644
--- a/samples/ControlCatalog/Pages/DataGridPage.xaml
+++ b/samples/ControlCatalog/Pages/DataGridPage.xaml
@@ -38,8 +38,8 @@
-
-
+
+
diff --git a/src/Avalonia.Controls.DataGrid/DataGrid.cs b/src/Avalonia.Controls.DataGrid/DataGrid.cs
index 6687c59aa4..8f9b9583cf 100644
--- a/src/Avalonia.Controls.DataGrid/DataGrid.cs
+++ b/src/Avalonia.Controls.DataGrid/DataGrid.cs
@@ -2285,6 +2285,17 @@ namespace Avalonia.Controls
}
}
+ ///
+ /// Comparator class so we can sort list by the display index
+ ///
+ public class DisplayIndexComparer : IComparer
+ {
+ int IComparer.Compare(DataGridColumn x, DataGridColumn y)
+ {
+ return (x.DisplayIndexWithFiller < y.DisplayIndexWithFiller) ? -1 : 1;
+ }
+ }
+
///
/// Builds the visual tree for the column header when a new template is applied.
///
@@ -2309,8 +2320,11 @@ namespace Avalonia.Controls
ColumnsInternal.FillerColumn.IsRepresented = false;
}
_columnHeadersPresenter.OwningGrid = this;
- // Columns were added before before our Template was applied, add the ColumnHeaders now
- foreach (DataGridColumn column in ColumnsItemsInternal)
+
+ // Columns were added before our Template was applied, add the ColumnHeaders now
+ List sortedInternal = new List(ColumnsItemsInternal);
+ sortedInternal.Sort(new DisplayIndexComparer());
+ foreach (DataGridColumn column in sortedInternal)
{
InsertDisplayedColumnHeader(column);
}