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response.redirect executing before alert message RRS feed

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    User219039814 posted

    I have a condition depending on which an alert message gets displayed and then page is redirected.

    but alert message is not getting displayed and the page is directly redirected.

    if (String.IsNullOrEmpty(sname))
    {

    ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('Checking');", true);
    Response.Redirect("Resources.aspx");
    }

    Saturday, June 30, 2018 5:02 AM

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    User-1171043462 posted

    Refer

    ASP.Net: Show JavaScript Alert Message Box and Redirect to another page or website

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Saturday, June 30, 2018 11:29 AM
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    User283571144 posted

    Hi vijaylakshmim,

    As @mike says, since you directly use response.redirect method to redirect to another page in code-behind, your javascript will not add and run in previous page.

    So you will find the alert not work.

    I suggest you could use javascript’s winodws.location.herf method to redirect to another page in the client side.

    More details ,you could refer to below codes:

    ASPX:

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Test.aspx.cs" Inherits="WebFormLearning.Test" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>

              <asp:Button ID="Button1" runat="server" Text="Button" />   //just a button in the page
        </div>
    </form>
  
</body>
</html>

    Code-behind:

    public partial class Test : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (IsPostBack)
            {
                ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('checking');window.location.href='Resources.aspx';", true);
            }
           
        }
    }

    Result:

    Best Regards,

    Brando

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Monday, July 2, 2018 9:32 AM

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    User-821857111 posted

    Yes - that's how the browser works. If a redirect is issued as part of the response, the browser does not wait for anything.

    Saturday, June 30, 2018 9:11 AM
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    User-1171043462 posted

    Refer

    ASP.Net: Show JavaScript Alert Message Box and Redirect to another page or website

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Saturday, June 30, 2018 11:29 AM
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    User283571144 posted

    Hi vijaylakshmim,

    As @mike says, since you directly use response.redirect method to redirect to another page in code-behind, your javascript will not add and run in previous page.

    So you will find the alert not work.

    I suggest you could use javascript’s winodws.location.herf method to redirect to another page in the client side.

    More details ,you could refer to below codes:

    ASPX:

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Test.aspx.cs" Inherits="WebFormLearning.Test" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>

              <asp:Button ID="Button1" runat="server" Text="Button" />   //just a button in the page
        </div>
    </form>
  
</body>
</html>

    Code-behind:

    public partial class Test : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (IsPostBack)
            {
                ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('checking');window.location.href='Resources.aspx';", true);
            }
           
        }
    }

    Result:

    Best Regards,

    Brando

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Monday, July 2, 2018 9:32 AM