Using of @Html.TextArea in asp.net mvc

Question

I want to use @Html.TextArea() instead of @Html.EditorFor() but I am getting this error

cannot convert lambda expression to type 'string' because it is not a delegate type.

Model

public class ProductFeature
{
    [Required(ErrorMessage = "{0} boş geçilemez")]
    [DisplayName("Ürün Özellik Adı")]
    public string ProductFeatureName { get; set; }

    [Required(ErrorMessage = "{0} boş geçilemez")]
    [DisplayName("Ürün Özellik Değeri")]
    public string ProductFeatureValue { get; set; }

    ....
}

View

// Works
@Html.EditorFor(model => model.ProductFeatureName, new { htmlAttributes = new { @class = "form-control" } })

// Throws error
@Html.TextArea(model => model.ProductFeatureName, new { htmlAttributes = new { @class = "form-control" } })

Where is the code that you use for TextArea()? And what does 99% of this code have to do with your question? — user3559349
– user3559349, Commented Apr 26, 2016 at 8:24
That's the code for EditorFor() You question is about TextArea() - what code did you try that gave that error? — user3559349
– user3559349, Commented Apr 26, 2016 at 8:28
Html.EditorFor(model => model.ProductFeatureName, new { htmlAttributes = new { class = "form-control" } }) Html.EditorFor(model => model.ProductFeatureValue, new { htmlAttributes = new { class = "form-control" } }) I want to use Html.TextArea instead of Html.EditorFor. Cannot i ? — Erdem Nayir
– Erdem Nayir, Commented Apr 26, 2016 at 8:30
Of course you can. Edit you code with the code you tried and we will correct it for you — user3559349
– user3559349, Commented Apr 26, 2016 at 8:31
i did try like this "Html.TextArea(model => model.ProductFeatureName, new { htmlAttributes = new { class = "form-control" } })" but red line appeared it's below and this error "cannot convert lambda expression to type 'string' because it is not a delegate type". — Erdem Nayir
– Erdem Nayir, Commented Apr 26, 2016 at 8:33

user3559349 · Accepted Answer · 2016-04-26 08:41:03Z

6

If you use an expression, then you need to use the strong typed xxxFor() methods

@Html.TextAreaFor(m => m.ProductFeatureValue, new { @class = "form-control" })

alternatively your can use

@Html.TextArea("ProductFeatureValue", new { @class = "form-control" } )

or you could add the DataTypeAttribute to you property

[DataType(DataType.MultilineText)]
public string ProductFeatureName { get; set; }

and use EditorFor() which will then generate a <textarea>

answered Apr 26, 2016 at 8:41

user3559349

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