Solved

Parsing error from ASP.Net page when trying to execute javascript Alert

Posted on 2009-04-07
7
448 Views
Last Modified: 2013-12-17
Greetings all

I am have a user control that sends an email. On successful send, I want to displaya message. I am using "Response.Write("<script>alert('Your email has been sent.')</script>");" but this gives me an error - "PageRequestManagerParserErrorException" (plse see attached jpg).

USerControl source and code-behind are attached.

What am I mising?

In advance, thanks!!

    allanmark



USER CONTROL SOURCE:
 

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MimeEmailer.ascx.cs" Inherits="UserControls_MimeEmailer" %>
 

<script type ="text/javascript" language="javascript">
 

 function ClearTheItXYZ()

{

   document.getElementById('<%=txtSubject.ClientID %>').value = '';

   document.getElementById('<%=txtMessage.ClientID %>').value = '';   

   var control = document.getElementById('<%=txtSubject.ClientID %>');

   if( control != null ){ control.focus(); }

   return false;

}
 

</script>      
 

<ajaxext:ScriptManagerProxy ID="ScriptManagerProxy1" runat="server">

</ajaxext:ScriptManagerProxy>
 

<ajaxext:UpdatePanel ID="UpdatePanelA" runat="server">

<ContentTemplate>

    <asp:Panel ID="pnlMail" runat="server" CssClass="pnlEMail" Width="600" BackColor="Lime">

    <br />

    

    <table id="email" style="position: relative" >
 

       <!-- To -->

       <tr>

            <td style="width: 75px">

                <asp:Label ID="lblTo" runat="server" CssClass="smallerFontSize">To:</asp:Label>

                </td>

                <td colspan="2">

                <asp:DropDownList ID="ddlAddresses" runat="server" Width="325px"></asp:DropDownList>                

            </td>

       </tr>      

       

        <tr>                

        <!-- Row: Blank  -->

            <td colspan="2" height="12"></td>

        </tr>
 
 

       <!-- Row: Subject -->

       <tr>                

            <td style="width: 75px">

		        <asp:Label ID="lblSubject" runat="server" CssClass="smallerFontSize" AssociatedControlID="txtSubject" Width="175px" >Subject:</asp:Label>

            </td>

            <td colspan="2">

                <asp:TextBox ID="txtSubject" runat="server" Width="350px"></asp:TextBox>

	    	    <asp:RequiredFieldValidator ID="rfvSubject" runat="server" CssClass="smallFontSize" ControlToValidate="txtSubject"

                    ErrorMessage="Required Field" SetFocusOnError="True" Style="position: relative" ValidationGroup="SendEmail"></asp:RequiredFieldValidator></td>            

    	<!-- End: Row: Subject -->

        </tr>
 

        <tr>                

        <!-- Row: Blank  -->

            <td colspan="2" height="12"></td>

        </tr>

            

        <tr>                

        <!-- Row: Message -->

            <td style="width: 75px">

    		    <asp:Label ID="lblMessage" runat="server" CssClass="smallerFontSize" AssociatedControlID="txtMessage">Message:</asp:Label>

            </td>

            <td colspan="2">

		        <asp:TextBox ID="txtMessage" runat="server" TextMode="MultiLine" Width="475px" Height="200px"></asp:TextBox>

		        <asp:RequiredFieldValidator ID="rfvMessage" runat="server" CssClass="smallFontSize" ControlToValidate="txtMessage"

                    ErrorMessage="Required Field" SetFocusOnError="True" Style="position: relative" ValidationGroup="SendEmail"></asp:RequiredFieldValidator>        

            </td>            

	    <!-- End: Row: Message -->

        </tr>
 

        <tr>                

	    <!-- Row: Blank  -->

            <td colspan="2" height="1"></td>

        </tr>

              

    <!-- End: table id="email". -->

    </table>     

    

    <center>

    <asp:Button ID="btnSendTheEMail" runat="server"  Text="Send" ValidationGroup="SendEmail" CssClass="buttons" OnClick="btnSendTheEMail_Click" />  

    &nbsp;&nbsp;&nbsp;

    <asp:Button ID="btnClear" runat="server" Text="Clear" OnClientClick="return ClearTheItXYZ()" CausesValidation="False" />        

    </center><br />
 
 

    </asp:Panel>

    <!-- <asp:Panel ID=pnlMail"> -->
 

</ContentTemplate>        

</ajaxext:UpdatePanel>
 
 
 

USER CONTROL CODE BEHIND:
 

using System;

using System.Data;

using System.Text;

using System.Configuration;

using System.Collections;

using System.Collections.Generic;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using DataTransferObjects;

using BusinessLogic;
 
 

public partial class UserControls_MimeEmailer : System.Web.UI.UserControl

{
 

    private List<EMailAddress> emailList = new List<EMailAddress>();
 
 

    protected void Page_Load(object sender, EventArgs e)

    {

        // Load the Page-specific stylesheet.

        //HtmlLink lnk = (HtmlLink)Master.FindControl("cssLink");

        HtmlLink lnk = new HtmlLink();

        lnk.Href = "~/CSS/UserControls.css";
 

        //        txtMessage.Attributes.Add("OnClientClick", "return false;");
 

        if (!Page.IsPostBack)

        {

            emailList = BusinessLogic.Business.GetEmailAddress();

            ddlAddresses.DataSource = emailList;

            ddlAddresses.DataTextField = "Name";

            ddlAddresses.DataValueField = "Email";

            ddlAddresses.DataBind();
 

            ddlAddresses.SelectedIndex = 0;

            Session["selectedEmail"] = ddlAddresses.SelectedIndex;
 

        }

        else

        {

            if (Session["selectedEmail"] != null)

            {

                ddlAddresses.SelectedIndex = (int)Session["selectedEmail"];

            }

            else

            {

                ddlAddresses.SelectedIndex = 0;

                Session["selectedEmail"] = ddlAddresses.SelectedIndex;

            }

        }

    }
 
 

    protected void btnSendTheEMail_Click(object sender, EventArgs e)

    {

        bool isEmailSent = BusinessLogic.Business.SendEmail(ddlAddresses.SelectedValue.ToString(),

                                                       System.Configuration.ConfigurationManager.AppSettings["AdminEmail"].ToString(),

                                                       txtSubject.Text,

                                                       txtMessage.Text + Environment.NewLine + Environment.NewLine);

        if (isEmailSent)

        {
 

            Response.Write("<script>alert('Your email has been sent.')</script>");

                  ClearTheFields();

        }

        else

        {

            //   Message to go here.     

        }

    }
 

    private void ClearTheFields()

    {

        ddlAddresses.SelectedIndex = 0;

        txtSubject.Text = "";

        txtMessage.Text = "";

        txtSubject.Focus();

    }
 
 

}

Open in new window

Error.jpg
0
Comment
Question by:allanmark
  • 3
  • 3
7 Comments
 
LVL 2

Accepted Solution

by:
AlvinLim84 earned 175 total points
ID: 24084706
0
 

Author Comment

by:allanmark
ID: 24084809
Good articles!!

So anything with a Resonse.write in it is not going to work!  I need to inform the user in some way (was hoping to do so via a message popped up) - is there a way to do this?

0
 
LVL 2

Assisted Solution

by:AlvinLim84
AlvinLim84 earned 175 total points
ID: 24084896
Not really must remove the response.write(). You can try to move the button name 'btnSendTheEMail' outside of the Panel such as the following part in aspx page. It should be working as expected and popped up the message to user.
<!-- End: table id="email". -->

    </table>     

 

    </asp:Panel>

    <!-- <asp:Panel ID=pnlMail"> -->

 

</ContentTemplate>        

</ajaxext:UpdatePanel>
 

<center>

    <asp:Button ID="btnSendTheEMail" runat="server"  Text="Send" ValidationGroup="SendEmail" CssClass="buttons" OnClick="btnSendTheEMail_Click" />  

    &nbsp;&nbsp;&nbsp;

    <asp:Button ID="btnClear" runat="server" Text="Clear" OnClientClick="return ClearTheItXYZ()" CausesValidation="False" />        

    </center><br />

Open in new window

0
Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

 

Author Comment

by:allanmark
ID: 24085174
Bummer!

The UserControl is on a panel that is the TargetControl for an AJAX ModalPopup. If the "Send" button is outside the UpdatPanel then it causes the popup to close!
0
 
LVL 2

Expert Comment

by:AlvinLim84
ID: 24085590
Sorry. I didn't know it is Modalpopup. It is always better to use RegisterStartupScript rathen than Response.write method when you want to execute javascript command after the button postback event. Replace Response.Write with the following code. I hope this help.

ClientScript.RegisterStartupScript(typeof(String), "", "<script>alert('Your email has been sent.')</script>");
0
 
LVL 14

Assisted Solution

by:GiftsonDJohn
GiftsonDJohn earned 75 total points
ID: 24085601
Use as follows.

ScriptManager.RegisterClientScriptBlock(btnSendTheEMail, btnSendTheEMail.GetType(), "mailsent", "alert('Your email has been sent.')", true);
0
 

Author Closing Comment

by:allanmark
ID: 31567386
Many thanks!!!
0

Featured Post

IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Join & Write a Comment

Just a quick little trick I learned recently.  Now that I'm using jQuery with abandon in my asp.net applications, I have grown tired of the following syntax:      (CODE) I suppose it just offends my sense of decency to put inline VBScript on a…
Today I had a very interesting conundrum that had to get solved quickly. Needless to say, it wasn't resolved quickly because when we needed it we were very rushed, but as soon as the conference call was over and I took a step back I saw the correct …
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

746 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now