Using C# - How To Set A Content Page Property When Users Clicks On A TabStrip (user Control) In Master Page
Feb 10, 2010
I have a web page (Orders.aspx) that gets some orders and show them in a Gridview .The orders list I get from DB is depend on a field named Status. The page has a master page that contains a Tab user control. The user control has several tabs and every tab has a different Status. Therefor, when the user clicks on every tab, I want to pass a value as status to my content page (Orders.aspx) and then select the orders from DB based on status.
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to whom it may concern,
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http://www.velocityreviews.com/forums/t110057-accessing-properties-from-nested-master-pages.html
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[Code]....
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this hierarchy of master page
|--main.masterÂ
|-- index.aspxÂ
|-- user.masterÂ
|-- login.aspx
Â
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Aug 5, 2010
I am attempting to access a textbox control on a master page from a code behind base class but having problems.
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<%Master
Language="C#"
MasterPageFile="~/m2.master"
AutoEventWireup="true"
CodeFile="M3.master.cs"
Inherits="M3"
%>
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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>
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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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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;
}
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:Â
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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