Question

I am currently working on asp.net using C# and I need to show a message box and confirm the input from user and redirect to another page, my code is something like this:

protected void Button1_Click(object sender, EventArgs e)
{
    System.Text.StringBuilder sb = new System.Text.StringBuilder();
    sb.Append("<script language='javascript'>");
    sb.Append("if (confirm('YES OR NO?')){ /*some javascript code*/ }");
    sb.Append("</script>");

    Page.RegisterStartupScript("FocusScript", sb.ToString());
   Response.Redirect("Default.aspx");

}

here the problem is directly getting redirected to next page without showing message box.
if i remove Response.Redirect("Default.aspx"); it shows message box successfully. I think the here may be is Response.Redirect() has higher precedence compared to javascript

I tried using

sb.Append("if (confirm('YES OR NO?')){ window.location.href = \"Default.aspx"; }\");

instead of using Response.Redirect() but page didn’t got redirected, what should I do to resolve this problem?

Answer 1

There is an option of using adding javascript in client click event

eg:-

<asp:button id="Button1" OnClientClick="javascript:return confirm('Are you sure?');" runat="server" onclick="Button1_Click" />

and then in the code side simple redirect the page.