Add culture parameter to element-bind tag helpers

\n\nCommit migrated from 7515e2ce49

src/Razor/Microsoft.AspNetCore.Razor.Language/src/ComponentResources.resx

@@ -129,6 +129,9 @@
   <data name="BindTagHelper_Component_Documentation" xml:space="preserve">
     <value>Binds the provided expression to the '{0}' property and a change event delegate to the '{1}' property of the component.</value>
   </data>
+  <data name="BindTagHelper_Element_Culture_Documentation" xml:space="preserve">
+    <value>Specifies the culture to use for conversions.</value>
+  </data>
   <data name="BindTagHelper_Element_Documentation" xml:space="preserve">
     <value>Binds the provided expression to the '{0}' attribute and a change event delegate to the '{1}' attribute.</value>
   </data>

src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using Microsoft.AspNetCore.Razor.Language;
 using Microsoft.AspNetCore.Razor.Language.Components;
@@ -177,6 +178,15 @@ namespace Microsoft.CodeAnalysis.Razor
 
                     parameter.SetPropertyName("Event");
                 });
+
+                attribute.BindAttributeParameter(parameter =>
+                {
+                    parameter.Name = "culture";
+                    parameter.TypeName = typeof(CultureInfo).FullName;
+                    parameter.Documentation = ComponentResources.BindTagHelper_Element_Culture_Documentation;
+
+                    parameter.SetPropertyName("Culture");
+                });
             });
 
             // This is no longer supported. This is just here so we can add a diagnostic later on when this matches.
@@ -381,6 +391,15 @@ namespace Microsoft.CodeAnalysis.Razor
 
                         parameter.SetPropertyName(eventName);
                     });
+
+                    a.BindAttributeParameter(parameter =>
+                    {
+                        parameter.Name = "culture";
+                        parameter.TypeName = typeof(CultureInfo).FullName;
+                        parameter.Documentation = ComponentResources.BindTagHelper_Element_Culture_Documentation;
+
+                        parameter.SetPropertyName("Culture");
+                    });
                 });
 
                 // This is no longer supported. This is just here so we can add a diagnostic later on when this matches.

src/Razor/Microsoft.CodeAnalysis.Razor/test/BindTagHelperDescriptorProviderTest.cs

@@ -432,6 +432,28 @@ namespace Test
             Assert.True(parameter.IsStringProperty);
             Assert.False(parameter.IsBooleanProperty);
             Assert.False(parameter.IsEnum);
+
+            parameter = Assert.Single(attribute.BoundAttributeParameters, a => a.Name.Equals("culture"));
+
+            // Invariants
+            Assert.Empty(parameter.Diagnostics);
+            Assert.False(parameter.HasErrors);
+            Assert.Equal(ComponentMetadata.Bind.TagHelperKind, parameter.Kind);
+            Assert.False(parameter.IsDefaultKind());
+
+            Assert.Equal(
+                "Specifies the culture to use for conversions.",
+                parameter.Documentation);
+
+            Assert.Equal("culture", parameter.Name);
+            Assert.Equal("Culture", parameter.GetPropertyName());
+            Assert.Equal(":culture", parameter.DisplayName);
+
+            // Defined from the property type
+            Assert.Equal("System.Globalization.CultureInfo", parameter.TypeName);
+            Assert.False(parameter.IsStringProperty);
+            Assert.False(parameter.IsBooleanProperty);
+            Assert.False(parameter.IsEnum);
         }
 
         [Fact]
@@ -847,8 +869,29 @@ namespace Test
             Assert.True(parameter.IsStringProperty);
             Assert.False(parameter.IsBooleanProperty);
             Assert.False(parameter.IsEnum);
-        }
 
+            parameter = Assert.Single(attribute.BoundAttributeParameters, a => a.Name.Equals("culture"));
+
+            // Invariants
+            Assert.Empty(parameter.Diagnostics);
+            Assert.False(parameter.HasErrors);
+            Assert.Equal(ComponentMetadata.Bind.TagHelperKind, parameter.Kind);
+            Assert.False(parameter.IsDefaultKind());
+
+            Assert.Equal(
+                "Specifies the culture to use for conversions.",
+                parameter.Documentation);
+
+            Assert.Equal("culture", parameter.Name);
+            Assert.Equal("Culture", parameter.GetPropertyName());
+            Assert.Equal(":culture", parameter.DisplayName);
+
+            // Defined from the property type
+            Assert.Equal("System.Globalization.CultureInfo", parameter.TypeName);
+            Assert.False(parameter.IsStringProperty);
+            Assert.False(parameter.IsBooleanProperty);
+            Assert.False(parameter.IsEnum);
+        }
 
         private static TagHelperDescriptor[] GetBindTagHelpers(TagHelperDescriptorProviderContext context)
         {