


How Can I Use the Select Tag Helper in ASP.NET Core MVC to Create Dropdown Lists?
Jan 28, 2025 pm 09:01 PM
Overview
SELECT TAG Helper provides a simple way to create elements (drop -down list) in the ASP.NET Core MVC view using model data.
Binded to the option set <select>
Assume that the view model contains a attribute and a list of employees stored in attributes:
EmployeeId
In the view, you can use Select Tag Helper to bind the options to EmployeesList
collection:
public class MyViewModel { public int EmployeeId { get; set; } public List<Employee> EmployeesList { get; set; } }
<性> The option list displayed in the drop -down list of the attribute. EmployeesList
The method is used to sort the list according to the <方法> attribute.
<select asp-for="EmployeeId" asp-items="@Model.EmployeesList.OrderBy(e => e.FullName)"></select><置> Set the selection value
asp-items
OrderBy
<性> The attribute specification will be selected from the drop -down list to the attributes in the view model. In this example, it is <:>: FullName
When submitting the form, the selected value will be automatically bound to the property of the view model.
asp-for
EmployeeId
If your view model has
<select asp-for="EmployeeId" asp-items="@Model.EmployeesList.OrderBy(e => e.FullName)"></select>attribute:
EmployeeId
<多> More options
<選> Multi -choice: List
uses the array type for the asp-items
attribute to enable multiple choices.
public class MyViewModel { public int EmployeeId { get; set; } public List<Employee> Employees { get; set; } }<組> Grouping:
<select asp-for="EmployeeId" asp-items="@Model.Employees"></select>Specify the
attribute of each to group the options in the drop -down list.
ViewBag:- You can use
- to dynamically pass the option list to the view:
asp-for
The above is the detailed content of How Can I Use the Select Tag Helper in ASP.NET Core MVC to Create Dropdown Lists?. For more information, please follow other related articles on the PHP Chinese website!

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