Async Partial View in Form

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Form TabStrip

Chris asked on 28 Nov 2024, 12:16 PM

I have used partial views in many places, usually nested within a tab control, but also in some places nested inside a for EditorTemplate.

This was done using following type of code :

Html.Partial("_PartialViewName", Model)

Visual Studio was warning of :

MVC1000 : Use of IHtmlHelper.Partial may result in application deadlocks. Consider using <partial> Tag Helper or IHtmlHelper.PartialAsync.

So I went through and changed code where I could to :

awaits Html.PartialAsync("_PartialViewName", Model)

This works fine where the partial was within a tab control, or direct on the view but not when it's within an EditorTemplate on a form. Trying the same code gives this error :

The 'await' operator can only be used within an async lambda expression. Consider marking this lambda expression with the 'async' modifier.

I have tried a few things but nothing that VS will accept. Can it be done?

Thanks

Async Partial View in Form

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