asp.net mvc - Select Tag Helper with grouping elements -


does select tag helper in asp.net mvc core have grouping option such 1 shown below. i'm using latest versions of asp.net core , vs2015:

<select>   <optgroup label="swedish cars">     <option value="volvo">volvo</option>     <option value="saab">saab</option>   </optgroup>   <optgroup label="german cars">     <option value="mercedes">mercedes</option>     <option value="audi">audi</option>   </optgroup> </select>

display:

enter image description here

yes. select tag helper can render opt groups options. have provide group property value when create new selectlistitem object.

var swedish = new selectlistgroup { name="swedish" }; var german = new selectlistgroup { name="german" };  var optionitems = new list<selectlistitem> {   new selectlistitem { value="vovlo", text = "volvo", group = swedish },   new selectlistitem { value="saab", text="saab", group = swedish },   new selectlistitem { value="mercedes", text="mercedes", group = german } ,   new selectlistitem { value="audi", text ="audi", group = german }  };  // use optionitems asp-items when using select tag helper

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