Question

您好我想在页面加载时运行javascript函数。但是由于我的页面来自母版页，因此没有任何形式。这是我的aspx文件

<%@ Page Title="" Language="VB" MasterPageFile="~/Site.Master" AutoEventWireup="false"
CodeFile="test3.aspx.vb" Inherits="test3" %>

<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="Server">
<script language="javascript">
    var m_Names = new Array();

    function LoadArray() {
        PageMethods.Load_Array(onSucceeded, onFailed);
    }
    function onSucceeded(result, userContext, methodName) {
        m_Names = result;
    }

    function onFailed(error, userContext, methodName) {
        alert("An error occurred")
    }
</script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="Server">
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true">
</asp:ScriptManager> 
<asp:TextBox ID="txt_model_code" runat="server"></asp:TextBox><br />
<br />
<input type="button" value="db Function" /><br />
</asp:Content>

我想在页面加载时以initialy方式运行LoadArray（）函数。此函数调用aspx.vb代码文件中给出的页面方法..

Partial Class test3
Inherits System.Web.UI.Page
<System.Web.Services.WebMethod()>
Public Shared Function Load_Array() As String()
    Dim Model_Name_old As String()()
    Dim mod_code As String()
    Dim mod_name As String()
    Dim cod_upper As Integer

    //calling webservice that retunrs a jagged array
    Dim ins As New localhost_insert_model.dbModel

    Model_Name_old = ins.get_Model_Name("A")

    mod_code = Model_Name_old(0)
    mod_name = Model_Name_old(1)

    Return mod_name
  End Function
End Class

那么在这种情况下如何在onPageLoad上加载javascrip LoadArray（）函数？

Answer 1

这个应该有效

<script language="javascript">
var m_Names = new Array();

window.onload = function () 
    {
        LoadArray();

    }
 .....your functions    
</script>

Answer 2

我认为你可以使用jQuery中的$ document.ready（）。

Answer 3

如果您不需要整个页面完全加载，您可以在创建函数后调用它？

var m_Names = new Array();

function loadArray() {
    PageMethods.Load_Array(onSucceeded, onFailed);
}
function onSucceeded(result, userContext, methodName) {
    m_Names = result;
}

function onFailed(error, userContext, methodName) {
    alert("An error occurred")
}

loadArray();

Answer 4

您可以使用此代码：

Sys.Application.add_load(function(e) { LoadArray(); });

它的名字是否建议，这是一个page_load处理程序，在功能上几乎重复的是服务器端计数器部分。

在页面加载时加载javascript函数

4 个答案: