CmsPage : When content is null , Markdig will occur a error #2028

changyenshung created 3 years ago

ABP Framework version: v4.4.3
UI type: MVC
DB provider: EF Core
Tiered (MVC) or Identity Server Separated (Angular): no
Exception message and stack trace:

An unhandled exception occurred while processing the request.
ArgumentNullException: Value cannot be null. (Parameter 'markdown')
Markdig.Helpers.ThrowHelper.ArgumentNullException_markdown()

Steps to reproduce the issue:"

1.Create application use abp suite

2.Insert a data by MSSQL ID | Tenant | Title | Slug | Content|..... --------------|:-----:|-----:| ----:|------------------------|--------- 949e1344-43e2-5504-3ef1-39ffa4d31896|NULL|申辦服務|service|NULL |....| 3.open browser : https://localhost:44304/pages/service, a exception will occur

if page's content is not null, the page will show correct.

        public Task<string> RenderAsync(string rawMarkdown)
        {
        
            //if rawMarkdown is null ,will throw exception
            return Task.FromResult(

                Markdown.ToHtml(rawMarkdown, MarkdownPipeline));
        }