.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
david stephan
Gaurav Pal
Post New Web Links

Hidden variable has no value

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

I know I have a valid solution, but the js is telling me that the value in the hdnRecordSaved variable has no value!
Even when I specify in my function the following, it still tells me it has no value:
var myTextField = document.getElementById('hdnRecordSaved');

When I put the full value of the variable in (ctl00_ctl00_cphTopCenter_cphCenter_hdnRecordSaved.value), I get the correct contents back ("1"), which I set in my code behind. However, I would prefer to just put the short name in since the masterpages may change, etc. Unfortunately, I know I can get around this with VS2010, but we are using VS2008.

What am I doing wrong with the js naming conventions that can't give me the contents? Here is my below js.

<asp:Panel ID="pnlMapFields" runat="server" ScrollBars="Both" Height="430px">

<telerik:RadTreeView ID="RadTreeView1" runat="server" DataTextField="Description"

DataFieldParentID="MapFieldparentID" DataF

View Complete Post

More Related Resource Links

Retrieve a hidden flag/field/ textbox/ variable from SSRS in C# with reportExecutionService



I want to set a HIDDEN flag in my reports (SSRS 2008) and retrieve in my C# code. If it's possible please share your suggestions.


Thank you,


Local variable scoping in C#

In my previous post, Compiler-generated scopes for local variable declarations, I briefly touched on the issue of multiple meanings applied to the same name. In this post, I'll aim to flush out the compiler's rules with regards to binding names in their local scopes.

Compiler-generated scopes for local variable declarations

I was tasked with understanding and fixing a bug on error reporting with foreach iteration variables the other day, and it got me thinking about local variable scoping rules in C# in general. First, the bug.

Retrieving a variable from a previous page



I'm looking to have a search page where a user will select an item from a listview, then then taken to another page that wil display data based on their original selection.

A user will type in a string and be presented with a list of usernames that are like that string, when they select a user name who's profile they would like to view I would like the page that they're taken to, to be that users profile.

How would I transfer the variable from the search page to the profile page, and when I work on the profile page, how can I access that variable?


Embeb a variable number of videos


I need to provide some alternate content for my non-Flash users.

I have a directory of video files that is scanned using the DirectoryInfo() function, and I want to use the results to embed all files ending in ".mov" in QuickTime players on a web form.

How would you approach this? Right now I am using the count on the array of videos to determine how many times to repeat the embed code.  But this seems inelegant.

Is there a way to have a single QuickTime player.ascx control that gets duplicated according to the number of videos available for display?

How to take value of bound field of grid in a variable or in a textbox.


How to take value of bound field of grid in a variable or in a textbox.

 I m using this code in .aspx page for grid.

<asp:GridView ID="Grd_Mprocess" runat="server" AutoGenerateColumns="False"

                      Width="100%" AllowPaging="True"


                      AllowSorting="True" PageSize="5"  >

                 <RowStyle CssClass="odd" />


<asp:BoundField HeaderText="DOC_TYPE_PK" DataField="DOC_TYPE_PK"  Visible="true" >


  <asp:TemplateField HeaderText="DOC TYPE ID" Visible="true">  &nbs

Tab container rendered with visibility:hidden - This was reported over three years ago.



Here is (more) code that demonstrates the issue.  If the control in the host page is removed the tab control renders correctly.  Otherwise it is rendered with the visibility attrubute set to hidden as reported in the above link.  Is this broken or am I doing something wrong?



<%@ Page Language="C#" AutoEventWireup="true" CodeFile="S2.aspx.cs" Inherits="S2" %>
<%@ Register Src="~/SelectorPatternControl.ascx" TagName="TestControl" TagPrefix="sam" %>
<!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">
    <form id="form1" runat="server">
        <cc1:ToolkitScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true"></cc1:ToolkitScriptManager>

How to retrieve data from SqlDataSource and pass to a variable?


Hi there,

I have a page in my website where there is very little code-behind. I only have two lines of code in Page_Load() and the rest of the code is declarative ASP.NET code. I have a FormView control which uses a SqlDataSource to get some order information. The SqlDataSource calls a stored procedure called usp_GetOrderDetails, here's the code for the SqlDataSource:

    <asp:SqlDataSource ID="sdsFormOrderDetails" runat="server" 
ConnectionString="<%$ ConnectionStrings:ForexDB %>"
ProviderName="<%$ ConnectionStrings:ForexDB.ProviderName %>"
SelectCommand="usp_GetOrderDetails" SelectCommandType="StoredProcedure"
UpdateCommand="usp_UpdateOrder" UpdateCommandType="StoredProcedure"
<asp:ControlParameter Name="orderId" ControlID="grdOrders" PropertyName="SelectedDataKey.Value" />
<asp:ControlParameter Name="orderId" ControlID="frmOrderDetails" PropertyName="SelectedValue" />

SQL Server: Uncover Hidden Data to Optimize Application Performance


SQL Server 2005 gathers a lot of useful data that you can use to identify areas where database performance can be improved. Here's what you need to improve performance.

Ian Stirk

MSDN Magazine January 2008

Session Variable issues


Hello everyone,

I ran into an issud to day with the follwoing code.  The strPanelOrder session variable is false, however, once it goes into the next if statement and sets the strTrimOrder to True, it changes the strPanelOrder session varialbe to true as well.  Why is this and how to I stop that from happening?

If Session(strPanelOrder) Is "False" Then
                If (strItemNumber.Length() = 10) And (strItemNumber.Substring(0, 2) = "FS" Or strItemNumber.Substring(0, 2) = "FC" Or strItemNumber.Substring(0, 2) = "DS" Or strItemNumber.Substring(0, 2) = "DC") Then
                    Session(strPanelOrder) = "True"
                End If
End If
If Session(strTrimOrder) Is "False" Then
               If (strItemNumber.Substring(4, 1) = "T") And (strItemNumber.Substring(0, 2) <> "AC") And (strItemNumber <> "Length") Then
                    Session(strTrimOrder) = "True"
                End If
End If


Thanks in advance for taking a look at this.



BC30506: Handles clause requires a WithEvents variable defined in the containing type or one of its


why do i get

BC30506: Handles clause requires a WithEvents variable defined in the containing type or one of its base types.

with the code

 below ..thanks


<form id="form1" runat="server">
               <asp:Button ID="Button1" runat="server" Text="Run Access" />
In your code behind:

How to store and retrieve multiple values in a single session variable .


I want to store employee name,designation and department in session variable and
retrieve in another page how to do this.

Textbox text populated by Session Variable wont update into SQL with new text


Hi everyone, I have what I think is a weird issue. I send text from one page to another via Session Variable. When page 2 loads, the text box has the session text set, but if the user changes the text and clicks the button, the SQL database is update with the original session text. If I remove the redirect from the page 2 button_Click method, then, the page refreshes with the textbox reverting to the session text and thr SQLDataSource has the session text added to it.

Why would the button click cause the textbox refresh with the text from the pageLoad before updating the data source?


Partial Class _1
    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Session("UpdateProd") = "Have some text here to send to a textbox on page 2"
    End Sub
End Class

Partial Class _2
    Inherits System.Web.UI.Page


Pass the server variable to search core result web part


I'd like to custom the search core result web part to filter results based on the log on user name.

It can easily be done in Dataview web part.

However the search core web part doesn't accept "<parameterbining>" to pass in the server variable [logon_user]. I can't figure out how to use <xsl:param> to get this server variable either.


Any ideas? Thanks a lot!

If you get confused, listen to the music play...

Collect Feedback workflow hidden field


Hello all,

I am using the out of box Collect Feedback workflow.  It works well for most part.  However I would like to get reviewer's feedback to be shown on a Dashboard.  Is there a way to expose that information in a Data View?  I couldn't figure out which data field stores the feedback information.


ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend