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Operator '+' cannot be applied to operands of type MvcHtmlString

Answer 1

+1 A:

You can't concatenate instances of MvcHtmlString. You will either need to convert them to normal strings (via .ToString()) or do it another way.

You could write an extension method as well, see this answer for an example: http://stackoverflow.com/questions/3460762/how-to-concatenate-several-mvchtmlstring-instances/3464634#3464634

Alastair Pitts 2010-08-31 05:19:58

I am new to MVC, here is the code:public static string ExTextBox(this HtmlHelper helper, string name, object value, bool readOnly, object htmlAttributes) { string HTML = ""; //if (readOnly) HTML = String.Format("<label for='{0}'>{1}</label>", name, value); if (readOnly) HTML = value == null ? "" : value.ToString(); else HTML = System.Web.Mvc.Html.InputExtensions.TextBox(helper, name, value, htmlAttributes) + System.Web.Mvc.Html.ValidationExtensions.ValidationMessage(helper, name, "*"); return HTML; }

2010-08-31 05:26:54

Thank you so much, it worked

2010-08-31 05:33:55

@hnabih: If this is the correct answer, don't forget to mark it as such :)

Alastair Pitts 2010-08-31 07:18:01

Thanks, I am new to this site

2010-09-01 00:05:55

@hnabih: No problems! Welcome to the SO community :)

Alastair Pitts 2010-09-01 09:26:40

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Operator '+' cannot be applied to operands of type MvcHtmlString

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