C#•2mo ago

✅ ASP.NET Web Form Web Method not return expected output.

ASP.NET Web Form doesn't return the value I want, but it returns the html of the page.

10 Replies

RVOP•2mo ago

Default.aspx

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="PageMethodTest._Default" %>

<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">
    <main>
        <button type="button" onclick="GetDetails('jj')">test </button>
    </main>

    <script type="text/javascript">
    function GetDetails(Id) {
        PageMethods.GetDetails(Id, (res) => {
            alert(res)
        });
    }
    </script>

</asp:Content>

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="PageMethodTest._Default" %>

<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">
    <main>
        <button type="button" onclick="GetDetails('jj')">test </button>
    </main>

    <script type="text/javascript">
    function GetDetails(Id) {
        PageMethods.GetDetails(Id, (res) => {
            alert(res)
        });
    }
    </script>

</asp:Content>

Default.aspx.cs

    public partial class _Default : Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        [System.Web.Services.WebMethod]
        public static string GetDetails(string Id)
        {
            return "hello";
        }
    }

    public partial class _Default : Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        [System.Web.Services.WebMethod]
        public static string GetDetails(string Id)
        {
            return "hello";
        }
    }

Site.master

<form runat="server">
    <asp:ScriptManager ID="mainscr" runat="server" EnablePageMethods="true">
        <Scripts>
            <%--To learn more about bundling scripts in ScriptManager see https://go.microsoft.com/fwlink/?LinkID=301884 --%>
            <%--Framework Scripts--%>
            <asp:ScriptReference Name="MsAjaxBundle" />
            <asp:ScriptReference Name="jquery" />
            <asp:ScriptReference Name="WebForms.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebForms.js" />
            <asp:ScriptReference Name="WebUIValidation.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebUIValidation.js" />
            <asp:ScriptReference Name="MenuStandards.js" Assembly="System.Web" Path="~/Scripts/WebForms/MenuStandards.js" />
            <asp:ScriptReference Name="GridView.js" Assembly="System.Web" Path="~/Scripts/WebForms/GridView.js" />
            <asp:ScriptReference Name="DetailsView.js" Assembly="System.Web" Path="~/Scripts/WebForms/DetailsView.js" />
            <asp:ScriptReference Name="TreeView.js" Assembly="System.Web" Path="~/Scripts/WebForms/TreeView.js" />
            <asp:ScriptReference Name="WebParts.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebParts.js" />
            <asp:ScriptReference Name="Focus.js" Assembly="System.Web" Path="~/Scripts/WebForms/Focus.js" />
            <asp:ScriptReference Name="WebFormsBundle" />
            <%--Site Scripts--%>
        </Scripts>
    </asp:ScriptManager>
<!-- other !-->

<form runat="server">
    <asp:ScriptManager ID="mainscr" runat="server" EnablePageMethods="true">
        <Scripts>
            <%--To learn more about bundling scripts in ScriptManager see https://go.microsoft.com/fwlink/?LinkID=301884 --%>
            <%--Framework Scripts--%>
            <asp:ScriptReference Name="MsAjaxBundle" />
            <asp:ScriptReference Name="jquery" />
            <asp:ScriptReference Name="WebForms.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebForms.js" />
            <asp:ScriptReference Name="WebUIValidation.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebUIValidation.js" />
            <asp:ScriptReference Name="MenuStandards.js" Assembly="System.Web" Path="~/Scripts/WebForms/MenuStandards.js" />
            <asp:ScriptReference Name="GridView.js" Assembly="System.Web" Path="~/Scripts/WebForms/GridView.js" />
            <asp:ScriptReference Name="DetailsView.js" Assembly="System.Web" Path="~/Scripts/WebForms/DetailsView.js" />
            <asp:ScriptReference Name="TreeView.js" Assembly="System.Web" Path="~/Scripts/WebForms/TreeView.js" />
            <asp:ScriptReference Name="WebParts.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebParts.js" />
            <asp:ScriptReference Name="Focus.js" Assembly="System.Web" Path="~/Scripts/WebForms/Focus.js" />
            <asp:ScriptReference Name="WebFormsBundle" />
            <%--Site Scripts--%>
        </Scripts>
    </asp:ScriptManager>
<!-- other !-->

Unknown User•2mo ago

Message Not Public

RVOP•2mo ago

Yeah,

Angius•2mo ago

The easiest and best way to solve any and all issues with Webforms, is to throw it in the trash where it belongs and use something normal

RVOP•2mo ago

Because net core cant use crystal report

Angius•2mo ago

But .NET Framework — old and obsolete it might be — does not imply Webforms

RVOP•2mo ago

Yeah, but the current project is using crystal report and web form. Changes framework, change everything.

Angius•2mo ago

Ah, well, my sincere condolences in that case

Unknown User•2mo ago

Message Not Public

gerard•2mo ago

The Javascript callback has three parameters: result, returnResult, method You're currently using the result I think you want to add another parameter, which returns the object you want. So instead of (res) => you want (_, res) =>

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✅ ASP.NET Web Form Web Method not return expected output.

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