Setting Html Attributes in Tag Helpers in ASP.NET Core 2.0 Views

Question

I am migrating my web application from ASP.NET MVC to ASP.NET Core 2.0. But I having problem on setting html attributes in the Tag Helpers for Select Tag. For example, in my old project I have the below html helper for drop-down list.

var cssClass = "select-arrow " + Model.ControlCss;                        
@Html.DropDownListFor(model => model.Value, options, "", new { @class = cssClass })

Here, I have used the bellow html attributes for the html helper class to add another CSS classes.

new { @class = cssClass }

Now my question is how do I set the html attributes in asp.net core? Does the blow code work? Please let me know the details.

<select asp-for="Value" asp-items="options" class="form-control, cssClass"></select>

Marc LaFleur · Accepted Answer · 2018-03-23 20:13:17Z

1

You can insert a string using @PropertyName:

<select asp-for="Value" asp-items="options" class="form-control select-arrow @Model.ControlCss" />

answered Mar 23, 2018 at 20:13

Marc LaFleur

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2 Comments

mnu-nasir Over a year ago

Thanks for your answer. Can you please suggest me the alternative for @Html.ValidationMessage("InputText") in Tag Helper.

Marc LaFleur Over a year ago

I'm sure folks will here will be able to help but please post additional questions separately.

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