Controller Error: BadRequest Cannot
implicitly convert type 'Microsoft.AspNetCore.Mvc.BadRequestObjectResult'
to 'Models..'
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Severity
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Code
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Description
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Error
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CS0029
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Cannot implicitly convert type
'Microsoft.AspNetCore.Mvc.BadRequestObjectResult' to 'Models.ArticleModel'
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Beim Verwenden on Results wie BadRequest oder OK entsteht
ein Fehler
In Asp.Net
Core C# MVC
Fehlerhafter Code oder zu verbessern
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// PUT api/<ArticlesController>/5
//=Upadate
[HttpPut("{id}")]
//public
void Put(int id, [FromBody] string value)
public async Task<ArticleModel>
Update_Article(ArticleModel article)
{
//*get matching Article from Database by
ID
var dbArticle = await
_dbContext.tbl_Articles.FindAsync(article.IDArticle);
//*check
if (article == null) return BadRequest("Article
not found");
_dbContext.tbl_Articles.Add(article);
await _dbContext.SaveChangesAsync();
return dbArticle;
}
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Lösung:
Man muss bei der Funktion das Rückgabe-Objekt in
Task<Actionresult<..>> kapseln
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[HttpPut("{id}")]
public async Task<ActionResult<ArticleModel>>
Update_Article(ArticleModel article)
{
//*get matching Article from Database by
ID
var dbArticle = await
_dbContext.tbl_Articles.FindAsync(article.IDArticle);
//*check
if (article == null) return BadRequest("Article not found");
_dbContext.tbl_Articles.Add(article);
await _dbContext.SaveChangesAsync();
return dbArticle;
}
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