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

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

Access control within a usercontrol from Javascript

Posted By:      Posted Date: October 25, 2010    Points: 0   Category :ASP.Net

I have a javascript embedded in my extended gridview control that reference the grid control. Example:

var DataGridObj = document.getElementById(GridView1);


where GridView1 is a variable and my calling program passes the grid name. This is ok if I place my extended gridview on aspx page and run. But, how if, I have gridview in a user control and that user control is being used in aspx?

My ASPX -> My User Control -> Extended GridView.

When I check the html code, my gridview has an ID of "UserControlID_ExtendedGridViewID". Example:

In Default.aspx

<uc1:MyGrid ID="MyGrid1" runat="server" />

In UserControl (MyGrid.ascx)

<cc1:ExtendedGridView ID="GridView1" runat="server" DataSourceID="XmlDataSource1" </cc1:GridView>

and, finally in ExtendedGridView.cs

function CreateGridHeader(DataDiv, GridView1, HeaderDiv) 
    var DataGridObj = document.getElementById(GridView1);
//other part of code

HTML code:

<table cellspacing="0" rules="all" border="0" id="MyGrid1_GridView1&q

View Complete Post

More Related Resource Links

Access UserControl Control from a JavaScript Function

I have a requirement to launch a Modal Javascript dialog box from within my usercontrol,I have done this by <code> function browseControlAction(ProjID,ControlID) { strPrompt = 'Select a Previous control action..'; strOptions = 'dialogWidth:25;dialogHeight:30;status:no;resizable:yes'; selectedAction = window.showModalDialog('browseControlActions.aspx?ProjID=' + ProjID + '&Control=' + ControlID, strPrompt, strOptions); var sControl = ' + ControlID + '; if (selectedAction != null) { alert(ControlID.toString()); alert(selectedAction); var sTest = ControlID + '_txtControlAction'; alert(sTest); var sTest2 = 'txtSummary'; alert(sTest2); document.getElementById('txtCurrentControls').innerText=selectedAction;   //this works as this a control on the page itself document.getElementById(sTest2).innerText=selectedAction;      //Ditto document.getElementById(sTest).innerText=selectedAction;    //This Fails as this is the control in the USercontrol I am trying to Access //__doPostBack('',''); }</code>can anybody tell me why I can't access the Textbox control on the USercontrol?

How to access ServerSide control Value in Javascript changed by Ajax

Hello,I have a Textbox whose value is been changed using ServerSide code (AJAX based - Partial postback) and now I want to access that changed value in JavaScript. Please suggest me that how can I access that value.document.getElementByID is displaying old value.Things work fine with full postback but are creating above issue with Partial Postback.Thanks, in Advance....

Accordion control access in Javascript using Content page

Hi, I struggled with some javascript issues, and discovered that the problem seemes to come from a failed ajax control access.Here's my problem:I have a master page and a content page.In my content page, I have an accordion with 2 panes.1rst pane: a textbox and a validation button;                     I want the button to fire javascript function without reloading page (using "return false;");In my master page, I put my ToolkitScriptManager.In my content page, I put my script containing the functions.The problem is that it seems like I can't access the accordion control in my js functions, whereas I can access my textbox value...Here is my source:<%@ Page Language="C#" MasterPageFile="~/Default.master" Title="CLEOR RH | Home" CodeFile="Default.aspx.cs" Inherits="Default_aspx" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <asp:Content ID="Content1" ContentPlaceHolderID="Main" runat="server"> <script type="text/javascript"> var step1 = false; function pageLoad() { var accCtrl = $find('AccordionCtrl_AccordionExtender');

Acessing controls in usercontrol in javascript function where user control hosted in webpart



1how to acess controls in usercontrol  in javascript function where user control hosted in webpart


2)How to retieve values from javscript code to server side

details as follows

StringBuilder controlString = new StringBuilder();
            controlString.Append("<p>" + CurrentPage.ToString() + "of " + TotalPages.ToString() + " </p>");
            for (int intIndex = 1; intIndex <= TotalPages; intIndex++)
                controlString.Append("<li><a hre

Not able to access child controls in user control using javascript



I have a user control "SettingsControl" containing an ajax:CollapsiblePanelExtender which in turn has a GridView (gridView) and checkBoxes. On top of GridView we have two LinkButtons "Select All" and "Clear All". I have written to enable select all and clear all functionality. Select All should select all the rows in the grid by calling the following JavaScript written on the Client .aspx file.

function SelectAll(chk)
    //get reference of GridView control
    var grid = document.getElementById('<%= SettingsControl1.FindControl("gridView").ClientID %>');
    //variable to contain the cell of the grid
    var cell;

    if (grid.rows.length > 0)
        //loop starts from 1. rows[0] points to the header.
        for (i=1; i<grid.rows.length; i++)
            //get the reference of first column
            cell = grid.rows[i].cells[0];


How to access child(.ascx) page control from parent page(.aspx) javascript


I have functionality to select All check boxes on grid rows.

Child User control is having grid with checkbox to select all rows of grid. I want to select individual cell html from each row when I select all rows when checkbox 'select all' is clicked and place it into textbox which is in Parent page.

This textbox can only be in parent page.

So i need to call child(.ascx) page control from parent page(.aspx) using javascript as follows.

function CheckUncheckChildren(event)
        var childChkBoxes = document.getElementById('<%=gvUserDetails.ClientID %>').getElementsByTagName("input");
        var childChkBoxCount = childChkBoxes.length;
        var evtelem = (isIE())?event.srcElement:event.currentTarget;
        if(evtelem.checked == true)
            for(var i = 0; i<childChkBoxCount; i++)

Content page control passes as argument to javascript function


Here is the content page:


<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="JavaDynamicCopyValue.aspx.cs" Inherits="JavaDynamicCopyValue" Title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
 <script type="text/javascript" >
 function copyValue(input, output )
   ouput.value = input.value;
   return true;
 <asp:TextBox ID="txt1" runat="server" onchange="copyValue(this,document.getElementById('<%=txt2.ClientID%>'))"></asp:TextBox>
    <br />
    <br />
    <asp:TextBox ID="txt2" runat="server"></asp:TextBox>


I got a javascript run time error says output is undefined. if I view source of the page, the txt1 markup became:

<input name="ctl00$ContentPlaceHol

unable to access control inside webuser control



I have used calender web user control inside my project where i took textbox,button and calender.....but after dragging onto my aspx page....i am unable to access this textbox,calender and button on aspx page...Pls help me to find out the solution.

Access Control: Understanding Windows File And Registry Permissions


Understanding the ACLs that govern permissions and rights before an operation is allowed to proceed is critical to enhancing security.

John R. Michener

MSDN Magazine November 2008

Security Briefs: Access Control List Editing in .NET


Access control lists (ACLs) can be complex beasts, and user interfaces for editing them are incredibly tricky to implement properly. That's why I was really excited when Windows® 2000 shipped with a programmable ACL editor, shown in Figure 1.

Keith Brown

MSDN Magazine March 2005

Provisioning: Use Web Services Provisioning to Control Access, Usage, and Billing on Your Site


Building Web Services to provide enterprise-level solutions is only the first step. You need to take care of the infrastructure aspects of your solution as well, including provisioning, billing, security, and reporting. In this article, the author uses the .NET Framework and SQL Server 2000 to design a provisioning system that will take care of all these housekeeping tasks. He discusses the general requirements of a Web Service provisioning system, walks through the implementation, and then outlines various scenarios for putting this system to work.

Chandu Thota

MSDN Magazine December 2002

Access and Bind data wihtout using Datasource Control


i want to bind my gridview with a dataset with concept of caching (to minimize the database server trips). plz give me a best example to get and bind data to gridview (command line) . grid paging is also enabled so example code should be capable to rebind data at Gridview page change.  

How To Access Datakeys In Javascript...and How To make gridview Column Visible true in javascript


How To Access Gridview's Datakeys In Javascript...and How To make gridview Column Visible true in javascript

Reply me..

ASCX Control for Javascript



I have created an .ascx control that contains javascript functions.  I have created a Feature that allows me to deploy it to a site collection.

How do I now include that in any page in SharePoint?

I have tried the following:

<asp:Content ID="JScript1" ContentPlaceHolderID="????????" runat="server">
<MyWorkStat:MyWorkStat ID="JScript2" runat="server">


but I don't know what the ContentPlaceHolderID should be set to.


Really I looking for a way to easily inject javascript into SharePoint pages using Features that I can turn on and off. e.g. pieces of javascript that call jQuery functions.


Is there a way?

Accessing Label Control In a listview using Javascript



I have a Button and Label nested inside a ListView.

When a User clicks the button i want the Label to display a specific value eg"Pass". Of course being a Listview the Label value will be relevant to the row the button was clicked on.

I want all this to happen on client side, but i am struggling to access the Label via my Javascript??

Any suggestions and examples Would be much appreciated..

UserControl with a control property?

Hi... I have defined a UserControl wich needs to reference another control like this: <ctrl:Cook TheList="listView1" DefaultFileName="MyRecipe"></ctrl:Cook> The code behind of the control has the property defined:         public ListView TheList { get; set; } But I have a runtime error saying: 'ListView' type does not have a public TypeConverter class. And in design time I get: Property TheList of type ListView cannot be specified as string.   I know WPF is trying to read a string instead of a ListView, but dont know the magic solution. Maybe a converter? Please suggest the simpler solution you can, because this is not a vital requirement on the app. Thanks in advance for any help  

How to access querystring values from javascript after url rewriting?

Hi mates, I´m using ASP.NET 3.5 with C#. The problem that I have is the following. I´m using url rewriting (in the Global.asax file) and people see urls like this:http://localhost:1855/uk/london but after I rewrite the urls I work internally with querystring values and the urls become somehting like this:http://localhost:1855/post.aspx?co=1&ci=1In my Global.asax after I create the proper url with the querystring values I just apply it with the following sentence (this is an example):Context.RewritePath("/post.aspx?co=1&ci=1");The problem is that from javascript using the following function I access the first url and not the second:function getQueryVariable(variable) { var query = window.location.search.substring(1); var vars = query.split("&"); for (var i = 0; i < vars.length; i++) { var pair = vars[i].split("="); if (pair[0] == variable) { return pair[1]; } } } I need to access the querystring values because I need to load values in a textbox using jQuery.autocomplete and Web Services. Can anyone tell me how to access the rewritten url to get the querystring values?Thanks in advance mates
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