Relax constraint on ITemplate<T>.

4 years ago · f71893e42d
1 changed files with 2 additions and 2 deletions
--- a/src/Avalonia.Controls/Templates/ITemplate`1.cs
+++ b/src/Avalonia.Controls/Templates/ITemplate`1.cs
@ -6,7 +6,7 @@ namespace Avalonia.Controls
    /// Creates a control.
    /// </summary>
    /// <typeparam name="TControl">The type of control.</typeparam>
-    public interface ITemplate<TControl> : ITemplate where TControl : IControl
+    public interface ITemplate<TControl> : ITemplate where TControl : IControl?
    {
        /// <summary>
        /// Creates the control.
@ -16,4 +16,4 @@ namespace Avalonia.Controls
        /// </returns>
        new TControl Build();
    }
-}
+}