Web Forms :: What Is The Syntax For Finding A Control In A Content Page From Javascript Code In The Master Page

Jan 16, 2011

I have a control in a content page that I want to find the width and left attributes of the style. I am trying to find this from Javascript code that exists on the Master Page. How do I do that?

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I have a codebehind.vb for a master page from which I'm trying to find a hiddenfield in the content page. I was finding it like this without a hitch...

[Code]....

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Web Forms :: How To Call A Javascript Function On A Master Page From A Content Page Control

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I have a javascript function on my Master page, how do I access it with a dropdownlist of a content page. Not from codebehind, I can do that, but from the control itself such as the onSelectedIndexChanged event.

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Web Forms :: How To Reference A Control On A Master Page From A Content Page Code-behind

Aug 5, 2010

I am attempting to access a textbox control on a master page from a code behind base class but having problems.

I have 3 levels of master pages. m1.master is the master page for m2.master which is the master page for m3.master.

m3.master has a textbox as shown below

<%Master
Language="C#"
MasterPageFile="~/m2.master"
AutoEventWireup="true"
CodeFile="M3.master.cs"
Inherits="M3"
%>
<asp:Content
ID="Content5"
ContentPlaceHolderID="M2"
Runat="Server">
<asp:TextBox
ID="text1"
runat="server"
></asp:TextBox>
<asp:ContentPlaceHolder
ID="M3"
runat="Server"></asp:ContentPlaceHolder>
</asp:Content>

I have a content page c1.aspx that uses m3.master as its master page as shown below:

<%@
Page
Title=""
Language="C#"
MasterPageFile="~/m3.master"
AutoEventWireup="true"
CodeFile="c1.aspx.cs"
Inherits="_c1"
%>
<%@
MasterType
VirtualPath="~/m3.master"
%>
<asp:Content
ID="Content1"
ContentPlaceHolderID="M3"
Runat="Server">
</asp:Content>

My content page codebehind class inherits from a base class BaseForm

public partial
class
_c :
BaseForm{}

The problem that i am having is that I cannot access the texbox from the class BaseForm. The BaseForm code is as follows:

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public...........

I'm getting a null reference exception for txt1

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Is it possible to locate a div by "id" that is part of the content from the code-behind of its master page?

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I have a control on a master page called "panel1". I would like to access it from my Javascript on the content page. I have tried var panel1 = document.getElementById('<%= panel1 %>'); It doesn't work since it is on the Master page.

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I want to call a javascript method during page load. I am using application.master of the sharepoint server 2007 as the master page . In the content page i want to call a custom method named OnLoadFun() during loading the content page. I have written the function inside script tag in the PlaceHolderAdditionalPageHead id section of the content page.

[Code]....

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How To Run The Javascript Function On The Page Onload Event In Content Page Of Master Page

Nov 4, 2010

HOW TO RUN THE JAVASCRIPT FUNCTION ON PAGE ONLOAD EVENT IN CONTENT PAGE OF MASTER PAGE.?

means i have masterpage and the content page of master page namely default.aspx in vb.net

My problem was that .

i wanna run javascript function in Default.aspx and i have called the function

body onload in master page..

when i run my website it shows the error

"" Microsoft JScript Runtime Error : Object Expected ""

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C# - Accessing RadEditor Control From Master Page's Code Behind / Its Not Finding Any RadEditor Control

Nov 3, 2010

Its not executing statements in if block in my method

Master Page:-

page load event:-
Control c = new Control();
DoSomething(c);
My method:-
protected void DoSomething(Control control)(
{
foreach (Control c in control.Controls)
{
if(typeof(c).Equals(Telerik.Web.UI.RadEditor))
{
Telerik.Web.UI.RadEditor rad = c as Telerik.Web.UI.RadEditor;
label1.Visible = true; label1.Text = "dhchk";
rad.CssFiles.Add("~/styles/myStyle.css");
rad.CssFiles.Add("~/styles/myStyle2.css");
rad.CssFiles.Add("~/styles/myStyle3.css");
}
else
{
DoSomething(c);
}
}
}
my content page:-
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<telerik:RadEditor ID="Editor1" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins=false runat="server">
</telerik:RadEditor>
<telerik:RadEditor ID="Editor2" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins=false runat="server">
</telerik:RadEditor>

[EDIT] ok when debugging..I rt clicked "c" and then Quick watch...it says "The name 'c' does not exist in the current context" (?!?!) how so ?

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Web Forms :: How To Remove Master Page Prefix From Control ID After Rendering Content Page

Jun 26, 2010

how to remove master page prefix from control ID after rendering content page

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Jan 27, 2010

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Web Forms :: Find Hyperlink Control In Master Page From Content Page?

May 7, 2015

I have hyperlink in page

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and css

.lblMenuMessage
{
float:right;
text-align:right;
width:150px;
margin:0 12px 0 0;
color:white;
text-decoration:none;
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and I want change it's color in behind code so I wrote:

(this.Master.FindControl("HyperLink1") as HtmlGenericControl).Style["color"] = "black";

but below error happen:

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.Source Error: 

Line 13:
Line 14: (this.Master.FindControl("ADMenuMessage") as HtmlGenericControl).Style["background-image"] = Page.ResolveUrl("~/Image/ADactivmenu.png");
Line 15: (this.Master.FindControl("HyperLink1") as HtmlGenericControl).Style["color"] = "black";
Line 16: }
Line 17: }

how I can change hyperlink textcolor in behind code?

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How to access a control declared in a Master Page in a content page.I have a ModalPopUpExtender in Master Page and i want to access it from a content page, how can i do that.

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Can I modify the properties of a content page control from an event fired from the master page?create a delegate and event on master page wire up the master page in the content page create the event handler (function) on the content page modify for example:

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Below is my Aspx code and code-behind:

[code]....

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May 11, 2010

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Web Forms :: Access Master Page Control Value On Content Page?

Mar 25, 2010

on master page, i have declared a label control & set value to it.now on content page, i m able to find the control, but the value is alwasy null & not the one which was set.when i debugged, content page's load event is called first, after that the master page is called.so where should i access the master page control so that i get the set value.

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Web Forms :: Hide Control In Master Page From Content Page

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I have master page with ajax accordin menu and I have content page "login.aspx"

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Web Forms :: How To Set Value Of Master Page Control From Content Page

May 14, 2010

I am developing a website. I have created a master page called Master.master which has a asp Label contol in it. I have used this master page as a template for the after login pages.

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Is there any way to retrieve the value of the session User_Id directly in/from the master page's code behind rather than setting the value in each and every page's code behind file.

Basically i want to set value of a master page label directly to a session that is generated after successful login. How do I do it?

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Web Forms :: Hiding Repeater On Master Page From Content Page / Access From Content Page?

Oct 6, 2010

My project has the following repeater menu shown on the Master Page. I need this menu to remain hidden until the user logs in. How do I access from content page?

[Code]....

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C# - Finding Control An A Page With Master Page?

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I have to find a Control(a Table) in an aspx page with master page :

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<asp:ContentPlaceHolder ID="MainContent" runat="server"/>

and int the child page :

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</asp:Content>
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I insert my Table in the Content2.

I used this code to get it :

protected void Ok_Click(object sender, EventArgs e)
{
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AJAX :: Access Control Inside LoginView Placed In Master Page From Content Page

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this hierarchy of master page

|--main.master 
|-- index.aspx 
|-- user.master 
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<AnonymousTemplate>
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[CODE]....

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