public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext)
{
ModelBindingHelper.ValidateBindingContext(bindingContext);
ValueProviderResult valueProviderResult = bindingContext.ValueProvider.GetValue(
bindingContext.ModelName
);
if (valueProviderResult == null)
{
return(false); // no entry
}
// Provider should have verified this before creating
Contract.Assert(TypeHelper.HasStringConverter(bindingContext.ModelType));
object newModel;
bindingContext.ModelState.SetModelValue(bindingContext.ModelName, valueProviderResult);
try
{
newModel = valueProviderResult.ConvertTo(bindingContext.ModelType);
}
catch (Exception ex)
{
if (IsFormatException(ex))
{
// there was a type conversion failure
string errorString = ModelBinderConfig.TypeConversionErrorMessageProvider(
actionContext,
bindingContext.ModelMetadata,
valueProviderResult.AttemptedValue
);
if (errorString != null)
{
bindingContext.ModelState.AddModelError(
bindingContext.ModelName,
errorString
);
}
}
else
{
bindingContext.ModelState.AddModelError(bindingContext.ModelName, ex);
}
return(false);
}
ModelBindingHelper.ReplaceEmptyStringWithNull(
bindingContext.ModelMetadata,
ref newModel
);
bindingContext.Model = newModel;
return(true);
}
public void TypeConversionErrorMessageProvider_DefaultValue()
{
// Arrange
ModelMetadata metadata = new ModelMetadata(new Mock <ModelMetadataProvider>().Object, null, null, typeof(int), "SomePropertyName");
// Act
string errorString = ModelBinderConfig.TypeConversionErrorMessageProvider(null, metadata, "some incoming value");
// Assert
Assert.Equal("The value 'some incoming value' is not valid for SomePropertyName.", errorString);
}