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Added string arrays to simple binding #63072

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Merged
merged 4 commits into from
Aug 18, 2025
Merged

Added string arrays to simple binding #63072

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99407d1
Added string arrays to simple binding
Aug 2, 2025
8517ce4
Added unit test for handling string array from form parameter
Aug 3, 2025
8f28e1d
Updated test with HttpContext check
Aug 5, 2025
2a5e714
ParameterBindingMetadata check returned
Aug 7, 2025
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9 changes: 5 additions & 4 deletions src/Http/Http.Extensions/src/RequestDelegateFactory.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -129,6 +129,7 @@ public static partial class RequestDelegateFactory
private static readonly string[] FormFileContentType = new[] { "multipart/form-data" };
private static readonly string[] FormContentType = new[] { "multipart/form-data", "application/x-www-form-urlencoded" };
private static readonly string[] PlaintextContentType = new[] { "text/plain" };
private static readonly Type[] StringTypes = new[] {typeof(string), typeof(StringValues), typeof(StringValues?) };

/// <summary>
/// Returns metadata inferred automatically for the <see cref="RequestDelegate"/> created by <see cref="Create(Delegate, RequestDelegateFactoryOptions?, RequestDelegateMetadataResult?)"/>.
Expand Down Expand Up @@ -791,11 +792,11 @@ private static Expression CreateArgument(ParameterInfo parameter, RequestDelegat
// For complex types, leverage the shared form binding infrastructure. For example,
// shared form binding does not currently only supports types that implement IParsable
// while RDF's binding implementation supports all TryParse implementations.
var useSimpleBinding = parameter.ParameterType == typeof(string) ||
parameter.ParameterType == typeof(StringValues) ||
parameter.ParameterType == typeof(StringValues?) ||
var useSimpleBinding = StringTypes.Contains(parameter.ParameterType) ||
ParameterBindingMethodCache.Instance.HasTryParseMethod(parameter.ParameterType) ||
(parameter.ParameterType.IsArray && ParameterBindingMethodCache.Instance.HasTryParseMethod(parameter.ParameterType.GetElementType()!));
(parameter.ParameterType.IsArray &&
(StringTypes.Contains(parameter.ParameterType.GetElementType()) ||
ParameterBindingMethodCache.Instance.HasTryParseMethod(parameter.ParameterType.GetElementType()!)));
hasTryParse = useSimpleBinding;
return useSimpleBinding
? BindParameterFromFormItem(parameter, formAttribute.Name ?? parameter.Name, factoryContext)
Expand Down
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