如何在javascript中调用asp事件 [英] how to call asp event in javascript

问题描述

使用Javascript绑定下拉列表但我想调用dropdownlist选择的索引更改事件但是无效的回发或回调参数错误是否存在请给出任何解决方案

Bind Dropdownlist Using Javascript but I Want To call dropdownlist selected index change event But Invalid postback or callback argument error Are Occured please Give Any Solution

推荐答案

你可以做间接地;从你的Javascript中你应该通过在服务器上使用AJAX调用一个新方法来调用所选索引，然后新方法可以直接管理索引更改事件或者可以调用现有的选择索引更改方法。

以下是使用AJAX调用下拉列表的Javascript示例：

You could do this indirectly; from your Javascript you should invoke by using AJAX a new method on your server by passing it the selected index,then that new method will could manage directly the index change event or could invoke your existing select index changed method.
Here is an example of Javascript that use AJAX call for a dropdownlist:

function CartAddressChanged() {
        var address =

（#_ addressTypeDropDown）。val（）;

("#_addressTypeDropDown").val();

.ajax（{
type：POST，
url：/ Order / CartForNewAddress，
data：address =+ address，
success：function（）{
document.location =/ Order / ShoppingCart;
}，
错误：function（jqXHR，exception）{
alert（'Uncaught Error.\\\
'+ jqXHR.responseText）;
}
}）; //结束ajax调用
返回false;
};

.ajax({ type: "POST", url: "/Order/CartForNewAddress", data: "address=" + address, success: function () { document.location = "/Order/ShoppingCart"; }, error: function (jqXHR, exception) { alert('Uncaught Error.\n' + jqXHR.responseText); } }); //end ajax call return false; };

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