C# - How To Access Data Binding Object In Aspx Page

Dec 28, 2010

I am trying to hide or show a certain section of my table depending on the value of a property in my binding object(s).

public class Class1
{
public bool Display { get; set; }
}

In ASP.NET MVC, I can just do the following (assuming that Class1 is the model that binds to the page.)

<table>
<tr>Row 1</tr>
<tr>Row 2</tr>
<% if(Model.Display) { %>
<tr>Row 3</tr>
<tr>Row 4</tr>
<% } %>
</table>

How can I achieve the same behavior in transitional ASP.NET? That "Model" variable is not available. How do I retrieve the data binding object?

View 2 Replies


Similar Messages:

How To Access Object Tags In Aspx.cs Page

Mar 2, 2011

I desingned a page with tags, Now I want to access object tags in code behind.

This is aspx page code....

<object type="label" runat="server" class="System.Web.UI.WebControls.Label" id="label_priority" parent="-1" bindedfield="priority" empty="1" value="MyValue">

Here I am adding runat=server in object tags it is giving error as

"An object tag must contain a Class, ClassID or ProgID attribute."

then I added class="System.Web.UI.WebControls.Label", now not giving any error but not showing anything in browser.

so My question is how do I access object tags in aspx.cs page? or I want to create a label with object tag that is accessible in code behind.

View 2 Replies

C# - Access Object In Codebehind From Aspx Page?

Sep 24, 2010

C# or VB.NET are welcome.

I have an <%#Eval("FirstName")%> in the aspx page, I want to replace "FirstName" to <%#Eval(employee.FirstName)%> but "employee" object
is instantiated in the codebehind like this:

Public employee As New Employee

How can I call this object in the aspx page? Should I can create an "employee" in the aspx? if so, how to do that.

View 2 Replies

Accessing Silverlight Object Data From Aspx Page?

Jul 29, 2010

I am new to silverlight and I am wondering if it is possible to access silverlight object data from the aspx page that host it. Or have silverlight write to a hidden field on the page on client side.

What I am trying to do is to use silverlight to upload file via WCF (client to WCF Service directly instead of posting data back to the web server then forwarded to WCF service). When uploading a large file, user can still do some data entry etc. And once the upload is done have it write some data return by the WCF service to the aspx's hidden field and postback to the server on submit.

View 1 Replies

Web Forms :: Binding Custom Object To A TextBox In Aspx-file Not In Cs-file?

Aug 14, 2010

A have a custom object - Person in my cs-file and I want to Bind the property Firstname from Person to my textbox txtFirstname in my aspx-file but I cant seem to make it work.

I usually work with webcontrols so its very rare that I get out of my cs-file and use the aspx-file. I can solve my problem by letting my cs-file update the Text-property on my TextBox - but I dont want that I have declared my Person object as protected in my cs-file like this

protected Person myPerson = new Person { Firstname = "Testname" }; and my aspx-file looks like this

<asp:TextBox ID="txtFirstname" runat="server" Text='<%# Bind("myPerson.Firstname")%>'></asp:TextBox>

I get nothing in my textbox and I want to use this method to update the text-property for a change - you know just to learn some new and not getting stocked in the cs-file all the time.

View 14 Replies

Access The Html Button In Aspx.cs Page?if Access How

Jan 7, 2010

i have a doubt if i write html button in source code, how can i access in aspx.cs,

View 3 Replies

C# - How To Access Values From .aspx Page To .aspx.cs Page

Nov 19, 2010

I have code something like this.

ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "Submit", "Confirm()", true);

Confirm is the JavaScript function in .aspx page. I want to catch the "true" or "False" value returned based on the Click performed on the Confirm window to my code behind(aspx.cs) page.

View 2 Replies

Forms Data Controls :: Cannot Access Header Row Error / Object Reference Not Set To An Instance Of An Object

Jul 2, 2010

I tried to get the heade row text with the following code, but it failed.

[Code]....

Error returned was "Object reference not set to an instance of an object." on this line:

[Code]....

View 3 Replies

Forms Data Controls :: How To Access A LinkButton Inside A Repeater/Object Reference Not Set To An Instance Of An Object

Jan 16, 2010

why I get this error:

Object reference not set to an instance of an object.

when I try to access a LinkButton inside a Repeater as follows:

[Code]....

[Code]....

View 4 Replies

Data Binding On The Fields Of An Object Just Like In WPF?

Apr 7, 2010

Is it possible to do data binding on the fields of an object just like in WPF?

Something like this:

<TextBlock Text="{Binding ElementName=lbColor}" />

just for an asp:TextBox element. What I want is that on submit to have the new values inside the binded object and I don't want to manually read and set the values.

View 1 Replies

Receiving Object Reference Not Set To An Instance Of An Object When Binding Child DataGrid?

Mar 12, 2010

I am receiving Object reference not set to an instance of an Object when binding Child dataGrid in the ItemCommandEvent of Parent dataGrid.

[code].....

View 1 Replies

Web Forms :: How To Reference A Object On Another Aspx Page

Oct 26, 2010

I have a basic ASP.NET (4.0) web site (in VS2010)

I have a few aspx forms with in it..

on default.aspx I have a aspxbutton1

on report.aspx I have a aspxlabel

All I need to know is HOW do I reverence the label from the default page and visa versa..

In the web world things are not the same.. This is just an example .. to prove the point.. but I am trying to copy the settings from one object on page 1 to an object on page2.

View 5 Replies

Binding Programmatically Vs Object Data Source For Performance?

Nov 16, 2010

I used bind all GridViews, DetailViews etc. on my page using an ObjectDataSource (unless it wasn't possible to do so). Recently, I've started binding all my contols programatically. I find this a lot cleaner and easier, though some may disagree. Binding with a ObjectDataSource obviously has it advantages and disadvantages, as does doing it programatically.Say I bind a GridView programatically (e.g. GridView1.DataSource = SomeList), when I change page on the GridView, I have to also code this. Each time the page changes I have to call GridView1.DataSource = SomeList again. Obviously with a ObjectDataSource I don't need to do this. I normally stick my SomeList object into the ViewState so when I change page I don't need to hit the database each and every time.

My question is: Is this how the ObjectDataSource works? Does it store it's data in the ViewState and not hit the database again unless you call the .Select method? I like to try and get the best performance out of my applications and hit the database as few times as possible but I don't really like the idea of storing a huge list in the ViewState. Is there a better way of doing this? Is caching per user a good idea (or possible)? Shall I just hit the database everytime instead of storing my huge list in the ViewState? Is it sometimes better to hit the database than to use ViewState?

View 1 Replies

Web Forms :: How To Access HTML Label Value Of Master Page On Any Other Aspx.cs Page

Nov 15, 2010

The HTML label control is on master page. And I want to access its value on other aspx.cs page. As there are many other control on the master page so i use the recursive function to access the value but NullReferenceException occurs... The code on aspx.cs page is as:

[code]....

View 5 Replies

Forms Data Controls :: Binding And Updating Object Via Formview?

Mar 1, 2011

I want to bind an object to a form view.

[Code]....

Now, is it possible to generate a new object on update, without getting and reading each textbox with findcontrol?

View 6 Replies

Web Forms :: How To Raise Events On Usercontrols Object From .aspx Page

Jan 7, 2010

I have a login.ascx control with three controls (LoginName, Password and A Button) , I want to rase a click event on this button from .aspx page because some restriction is there so that I am unable to write any code on .ascx page.

I have assigned value on login name and password from .aspx onload events. but I an facing problem while rasing event on button.

I am showing code that I have written on .aspx page that I have putten onload section.

[Code]....
[Code]....
[Code]....

View 2 Replies

State Management :: Get Null Session Object From An Aspx Page?

Jun 4, 2010

Ive created an object and placed it in the session, then in my .ashx handler I want to get that object from the session. The problem is that its always null !

heres how ive placed the object into the session from an aspx page

[Code]....

View 4 Replies

How To Access Master Page Variables From .aspx Page

Jan 8, 2010

how do access master page variables from .aspx page

View 1 Replies

C# - Access Function In Aspx Page To Master Page?

Sep 6, 2010

I have a.master and b.aspx .

i have some functions in my aspx page.

how to access that functions in a.master page.

View 4 Replies

Binding Data To A GridView From A Object With Child Objects Containing Relevant Fields

Jul 16, 2010

I have a List of complex objects containing other objects within that I give as the data source to a gridview.(currently I'm using BoundFields for the columns). I need to bind data to the columns from the objects within at run time. How can this be done?

View 1 Replies

Access Class From Within The Aspx Page

Nov 22, 2010

I am trying to do something such as:

<%= Class1.GetName %>

in my ASPX page, but my class1.vb can't work like this, I have to declare it first in the aspx page, how can I make my Class1.vb file be shared among the whole website?

View 1 Replies

C# - Access To An Object Created In Page From A Class?

Jan 18, 2010

I have a page, Default.aspx, with its own code-behind file like this:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
public int[] anArray;
}

What I'd like to do is access to "anArray" from a C# class (not tied to a page) declared in App_Code folder. What can I do?

Edit: As said in the first comment, I really apreciate your about refactoring my connection objects. However, what I'm really doing here is to rewrite an old PHP application in order to get comfortable with basic C# and ASP.NET, so this code will never go really live. So, I'm still intersted in a way (if any) to access an object declared in a code-behind code from a standard C# class.

Edit2: I removed the OdbcConnection object in order to focus to the real problem: how to refer to an object istantiated in a code-behind file from a C# class situated in App_Code?

View 4 Replies

Web Forms :: Access WebControl In The Aspx.VB Page

Dec 20, 2010

I am trying to change an attribute on a textbox when a DDL value has changed. here is the code. <asp:DropDownList ID="DropDownList2" runat="server"

View 1 Replies

Forms Data Controls :: Binding Formview To Strongly Typed DataTable In Session Object?

Sep 29, 2010

Okay, here's something that I could easily do the hard way and manually wire up each form element and save it to a datatable in memory, but there has to be a more efficient way to do it.

Here's what I have:

1. A strongly typed datatable and tableadapter in a XSD name Orders

2. A formview control which currently is connected to an ODS connected to the Orders tableadapter, this makes it easy to wire up the databindings for each form field in design view

I would like to:

- bind the the formview to an instance of the strongly typed datatable, and then save the dt to a session object without interacting with the actual database

- load forms on subsequent pages from the dt in session

- ultimately save the dt info to an actual database table on the third page

I've read some solutions where a custom class is created, but to me this seems like almost as much work as wiring up the form field to the table columns manually in code.

View 1 Replies

Treeview - Access Masterpage Object From Regular Page?

Jul 20, 2010

In a project I'm working on, the master page codebehind does a load of complex checks and confirmations that decide the navigation list displayed on the TreeView of the page. Now, I need a way to access this list from another front-end page, such as "frontpage.aspx".

This serves two purposes. One, the masterpage will hide pages on the navigation list the user shouldn't have access to, but the user can still enter the page by typing the page name into the URL manually. By being able to browse through the TreeView, I can isolate the whole authorization into a single method by simply checking if the page name exists within the currently used TreeView.

Two, this will allow me to easily change the displayed content of any page without checking the database or storing sessions for whatever specific rights the current user has, as I can just look if the TreeView contains "Products Admin" for example, and then use that to hide or display the section of the page that has to do with "Product Admin" functionality.

View 3 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved