create many DropDownListFor in foreach-loop [duplicate]

Answer 1

Assuming count start in 0, and your action post method receive a parameter of type ViewModel, you can try this for bind the MaterialId for each dropdown:

foreach (var item in Model.materialSelect)
{
    count++;
    

       Name for de dropdown
    
    

        @Html.DropDownList("materialSelect[" + count + "].MaterialId ", item.selectList)
        @Html.ValidationMessageFor(model => model.gradationId)
    
       
}