dotnet/aspnetcore

make Partial Tag Helper's "view-data" attribute helperful

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#9,736 opened on Apr 25, 2019

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 (7 comments) (8 reactions) (0 assignees)C# (37,933 stars) (10,653 forks)batch import
affected-fewarea-mvcbughelp wantedseverity-major

Description

<partial name="view" view-data-additionalItem="abc" />

The IDictionary<string,object> has a very helpful way to add item , But this line of code throw exception because view-data is null .

I suggestion to either support this razor syntax or add a new attribute to add addiontal item to the partial view and not effect the current view‘s ViewData

Contributor guide

Tech stack
csharp
Domain
frontend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
C#ASP.NET Core MVCRazor syntax
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
Examine the PartialTagHelper implementation in the AspNetCore repository, specifically how the view data attribute is processed. Investigate the current tag helper code in the Mvc.TagHelpers namespace. Check for any existing tests related to PartialTagHelper to understand the expected behavior. Refer to the comments in the issue for community suggestions.
make Partial Tag Helper's "view-data" attribute helperful · dotnet/aspnetcore#9736 | Good First Issue