如何使用mvc4 asp.net弹出在同另外一个下拉框的的selectedIndex更改事件下拉框 [英] How to popup dropdownlistbox on selectedindex changed event of another dropdownlistbox in same view using mvc4 asp.net

问题描述

如何显示的DropDownList使用mvc4 asp.net在同另外一个下拉框的改变的selectedIndex事件数据

How to display dropdownlist data on selectedindex changed event of another dropdownlistbox in same view using mvc4 asp.net

推荐答案

您需要做的AJAX回调到控制器

you will need to do an ajax callback to your controller

$('.drop1').change(function(){
    //Clear dropdown
    $('.drop2').html('');
    $.ajax({
        url: "@(Url.Action("Action", "Controller"))",
        type: "POST",
        cache: false,
        async: true,
        data: { data: $this.val() },
        success: function (result) {
            //see link for populating dropdown
        }
    });
});

看到这个链接填充下拉阿贾克斯结果<一个href=\"http://stackoverflow.com/questions/14339089/populating-dropdown-with-json-result-cascading-dropdown-using-mvc3-jquery-aj\">Populating下拉与JSON结果 - 使用MVC3，JQuery的，阿贾克斯，JSON 结果下拉级联
希望这有助于。

see this link for populating a dropdown with ajax result Populating dropdown with JSON result - Cascading DropDown using MVC3, JQuery, Ajax, JSON
Hopefully this helps.

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