Web Forms :: Passing A Content Page ByRef To Helper Class - Can't Find Controls
Dec 17, 2010
Is there a way to pass a reference of a page to a helper class? Scenario: [ASP.NET 2.0 Web Application] The page is a content page which has a MasterPage. The page calls a method in the helper class and passes the page byRef as an argument. The method in the helper class tries to find a control on the passed in page and set values. Problem: Only the MasterPage is being exposed and not the page I am trying to pass. Any recommendations on passing the page so that I can set the values of the controls within it?
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Nov 5, 2010
I have just added routing in a new asp.net 4 web forms application, and have got my route table set up ok and page requests are working fine. What I now want to do is use the Page.GetRouteUrl method whenever I need to generate one of my seo friendly Url's. I started to implement this across various pages then thought it might cut down on code a bit if I had a method in one of my own helper classes, that constructs this url (using the Page.GetRouteUrl method) as I might have several parameters that need to be specified against the Page.GetRouteUrl method each time.
However, within my helper class, it doesn't know what 'Page' is. I was thinking I could pass in 'Page' from the page that wants a routed url to be generated, but in some cases I want to construct one of these Url's in another class which doesn't know what 'Page' is, and in that scenario wouldn't be able to pass it in as a param (and therefore wouldn't be able to use the Page.GetRouteUrl within my helper class). What is the normal approach when wanting to use Page.GetRouteUrl within classes that don't have an instance of the Page object?
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May 17, 2010
have been trying to find radiobutton list in my content page which is in an update panel with no luck. I tried the below code:
Dim content As ContentPlaceHolder =
DirectCast(Me.Master.FindControl("ContentPlaceHolder1"),
ContentPlaceHolder)
[code]...
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May 18, 2010
can Zippackage class be used to find content inside a password protected zip file, if not can it be done without using any 3rd party api.
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Jan 24, 2014
On masterPage i have button btnTest, how hide button from masterPage on userControl.ascx
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btnSecondPage_click
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Jun 30, 2010
I have a class instance which is created by using Activator.CreateInstance() method. That class instance contains helper methods which are frequently used throughout the application. In order to avoid creating the instance multiple times, I'm just thinking about implementing an appropriate caching mechanism. The following consideration should be taken into account:
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Aug 21, 2010
I usually work with windows forms, and am just starting to work with ASP.Net, so appologies if this is a dumb question!
I have a master page which has a search button on it. The results of this are built up using a Linq statement and if there are any results, I want to display the results in a contents page.
On the masterpage, I have the following code:
[Code]....
On the SearchResults.aspx page I have this code.
[Code]....
m.searchRes is always nothing.
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May 7, 2015
I have MasterPage.master and 3 page that use this masterpage
1-home.aspx
2-product.aspx
3-information.aspx
in masterpage I defive 3 DIV
<div id="Home" runat="server"></div> <div id="Product" runat="server">
</div> <div id="Information" runat="server"></div>
I want in Home.aspx it change <div id="Home"> Background's image so I wrote below code in home.aspx behind code:
Home.Style["background-image"]=Page.ResolveUrl("~/Images/Extra/H.jpg"); but this error happen: the name Home doesn't exist in the current context
I think it happen because I define div in masterpage not in home.aspx so if I want do it what should I do?
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May 7, 2015
I have hyperlink in page
<asp:HyperLink ID="HyperLink1" runat="server" class="lblMenuMessage" NavigateUrl="~/Admin/صندوق-پیام.aspx">صندوق پیام</asp:HyperLink>
and css
.lblMenuMessage
{
float:right;
text-align:right;
width:150px;
margin:0 12px 0 0;
color:white;
text-decoration:none;
}
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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Jan 12, 2011
I want to be able to konw the ID or page name of the content page when I am calling a cocntrol or method from a Master Page.
For example, when I click a menu item that is a pop-up from the masterpage, I want to know what page I am using to call the menu item from.
How do I do that?
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May 1, 2010
I m New to asp.net,..
I wanted to find the Panel Control in the Content Page Of the master page,...
using "this.Master.Controls",..
Guide me there is some another way of finding the panel controls
Design code is
<asp:Content ID="Content3" ContentPlaceHolderID="head" runat="Server">
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Sep 18, 2010
I have a static class (an helper class) which has the responsability to create control and add them to a panel passed by parameter, this method is used by a lot of
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Feb 24, 2011
I am using ASP.NET MVC 3 and the YUI library.I created my own helper method to redirect to an edit view by passing in the item's ID from the Model as such:
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Now I am busy populating my YUI data table and would like to call my helper method like above, not sure if it is possible because I get the item's ID by JavaScript like:
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Jan 24, 2011
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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Apr 8, 2010
Can I access a class instance declared on the master page from a content page?
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Nov 15, 2010
I have built a blog that sees the index on the master page and the blog pages within in the ContentPlaceHolder of the master page. The Blog pages use SQLDatasource control with the QueryStringParameter to pull the selection from the address bar.
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I have a need to put a search field (text box) on the master page to search the contents of the blog pages, I would like to use the controlparameter of the sqldatasource on the blog page, but I have not idea how to do this ? What can be done to allow a textbox on master page and SQLDatasource talk to each other in this manner ?
is the query string passing my only option btw master and content?
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Dec 11, 2013
I looked at your example URL....I have ScriptManager in masterpage how call ScriptManager from masterpage in editorPage.aspx if (Script Manager 1.IsInAsyncPostBack)
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Aug 8, 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".................
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Jul 1, 2010
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Jun 25, 2010
which page need to be checked. Master or Content. I dont think there is anything wrong in the content page.
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Mar 30, 2011
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May 7, 2015
In master page I am using asp content place holder. And in my child page I am using pure html coding. When I attach master page in my child page I am getting this error.Content controls have to be top-level controls in a content page or a nested master page that references a master page.
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Dec 21, 2010
I tried this much:-
protected void Page_PreInit(object sender, EventArgs e)
{
class1 obj = new class1();
DataTable dt = new DataTable();
dt = obj.get_text();
ContentPlaceHolder ContentPlaceHolder1 = ContentPlaceHolder)this.Master.FindControl("ContentPlaceHolder1");
ContentPlaceHolder1. ????
}
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