.NetCore TagHelpers标签

<opt:versionselect x-for="VersionID" x-param="3" class="form-control" onchange="GetSelect()"></opt:versionselect><opt:versionselect x-for="VersionID" x-param="2" x-first-value="0" x-first-text="请选择" class="form-control"></opt:versionselect><opt:versionselect x-for="VersionID" x-param="2" x-first-value="" x-first-text="请选择" class="form-control" onchange="$(this).parents(‘form‘).submit();"></opt:versionselect>

 1 using System; 2 using System.Collections.Generic; 3 using Microsoft.AspNetCore.Mvc.Rendering; 4 using Microsoft.AspNetCore.Mvc.ViewFeatures; 5 using Microsoft.AspNetCore.Razor.TagHelpers; 6 ?7 namespace Data.TagHelpers 8 { 9 ????[HtmlTargetElement("opt:versionselect")]10 ????public class VersionSelectTagHelper : ParamSelectableTagHelperBase11 ????{12 ????????private readonly IVersionManager _ivManager;13 14 ????????public VersionSelectTagHelper(IHtmlGenerator generator, IVersionManager ivManager) : base(generator)15 ????????{16 ????????????_ivManager = ivManager;17 ????????}18 ????????/// <summary>19 ????????/// 实现抽象类(绑定数据)20 ????????/// </summary>21 ????????protected override void Init(List<SelectListItem> items, TagHelperContext context, string Param)22 ????????{23 ????????????VersionType enumType = (VersionType)Enum.Parse(typeof(VersionType), Param);//字符串转为版本枚举类型 x-param="3"24 ????????????IEnumerable<Data.Versions.Version> list = _ivManager.GetVersionByType(enumType);25 ????????????foreach (var item in list)26 ????????????{27 ????????????????items.Add(new SelectListItem { Text = item.VersionName, Value = item.Id.ToString() });28 ????????????}29 ????????}30 ????}31 }

$("#VersionID").change(function () { ???????debugger ???????var verid = $(‘#VersionID option:selected‘).val(); ???????$.ajax({ ???????????url: "@Url.ActionUrl("GetVersionInfo")", ???????????data: { verid: verid}, ???????????dataType: ‘JSON‘, ???????????type: ‘POST‘, ???????????success: function (d) { ???????????????$("#name").val(d.data.name); ???????????????$("#value option:contains(‘" + d.data.value + "‘)").attr("selected", true); ???????????}, ???????????error: function (resp) { ???????????????if (resp.status === 401) { ???????????????????return; ???????????????} ???????????????else ???????????????????document.write(resp.responseText); ???????????} ???????}); ???});