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ModalPopupExtender Textbox

Posted on 2010-11-09
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Last Modified: 2012-05-10
I have a update panel with textbox.  What is the best way to get the textbox string into a variable  that can be passed into a stored procedure using C#?
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Question by:gdspeare
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5 Comments
 
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Expert Comment

by:carlnorrbom
ID: 34110028
Hi,

Not sure i fully understand your question but lets assume you need to get the value of a textbox nested inside an updatepanel into a string you would need to do something like:

Dim txt As TextBox = CType(UpdatePanel1.FindControl("TextBox1"), TextBox)
Dim strVariable As String = txt.Text.ToString()

You can then pass strVariable as a variable to your stored procedure.

/Carl.
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Author Comment

by:gdspeare
ID: 34113999
thanks for the response.  

it makes sense what you are suggesting.  for some reason though my update panel is not firing when by button is selected.
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %> 



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">



<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title></title>

    <link href="StyleSheet.css" rel="stylesheet" type="text/css" />

</head> 

   <script type="text/javascript">





function GetNotetext() {

    var myNoteField = document.getElementById('txt_Note');

    if (myNoteField.value != "")

       (myNoteField.value)

    else

       ("Would you please enter some text?")

}



</script>

<body>

    <form id="form1" runat="server">

    



    <asp:ScriptManager ID="ScriptManager1" runat="server" /> 

           

    <asp:LinkButton ID="lbn_job_det" runat="server">View Job Details</asp:LinkButton>

        <ajaxtoolkit:modalpopupextender 

        id="ModalPopupExtender" 

        runat="server" 

        

        cancelcontrolid="btn_Cancel" 

        dropshadow="true" 

        okcontrolid="btn_OK" 

        popupcontrolid="Panel1" 

        popupdraghandlecontrolid="Panel3" 

        targetcontrolid="lbn_job_det" 

       > 

    </ajaxtoolkit:modalpopupextender>



  

    <asp:Panel ID="Panel1" runat="server" style="display:none" >

    <input type='text' id='txt_Note' />

    <input type='button' onclick='notEmpty()' value='Form Checker' />

    <asp:Button ID="btn_Cancel" runat="server" Text="Cancel" />

    <asp:Button ID="btn_OK" onclick="btn_Ok_OnClick" runat="server" Text="OK" />

    </asp:Panel>





    <div id="div_PassedValue">

        <asp:TextBox ID="TextBox2" runat="server" ></asp:TextBox>

    </div>





    </form>

</body>

</html>



using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;



public partial class _Default : System.Web.UI.Page 

{

    protected void Page_Load(object sender, EventArgs e)

    {



    }





    public void btn_Ok_OnClick(object sender, EventArgs e)

    {



        //TextBox2.Text = GetNoteText();

        string str_Note = Panel1.FindControl("txt_Note").ToString();

        TextBox2.Text = str_Note;

    }



  }

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Accepted Solution

by:
carlnorrbom earned 500 total points
ID: 34115813
Hi,

That is because you're trying to run server side code with a button inside a modal panel. By design, server controls inside a modal panel looses their server side capabilities. There are ways around this however. For instance you can add a client attribute to the button in question that performs a postback and then check in the page_load event for the __EVENTTARGET and if it's the button then grab the value of the textbox. I don't have access to my dev box right now (on the iPad...) but can maybe provide a sample tomorrow.

/Carl.
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LVL 18

Expert Comment

by:carlnorrbom
ID: 34115832
Hi,

Just one more thing, for future reference. An updatepanel and a modalpanel are two completely different things.

/Carl.
0
 

Author Closing Comment

by:gdspeare
ID: 34155560
Thanks for the education.
0

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