Web Forms :: Why Class Of User Control Is Unavailable In Another Class File
Nov 18, 2010
I have build a UserControl with separate code behind file.In that code behind file i have defined some public properties in the Partial class of user control that was automatically generated.Those properties will initialize some properties of controls that are used in the control.Now, in .aspx page i used this User Control and initialized the public properties through code behind of aspx page for dynamic contents.
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Similar Messages:
Apr 8, 2010
I want to access a usercontrol in my class file not in aspx.cs.i need to typecast it using ASP.usercontrol_ascx type but i cant access ASP namespace from my .cs file..how to typecast the usercontrol??
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Sep 16, 2010
I have this Control directive in a usercontrol (i've changed the namespace and class name):
<%@ Control Language="C#" AutoEventWireup="true" Inherits="Namespace.Path.To.ClassName" %>
<asp:TextBox runat="server" ID="txtComment" TextMode="MultiLine" ValidationGroup="comment" />
ClassName is a class that lives in a class library and this is the class:
namespace Namespace.Path.To
{
public class ClassName : System.Web.UI.UserControl
{
protected System.Web.UI.WebControls.TextBox txtComment;
protected void Page_Load(object sender, EventArgs e)
{
HttpContext.Current.Response.Write(txtComment == null);
HttpContext.Current.Response.End();
}
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Nov 15, 2010
Is there any way to list all the class in my ASP.Net application(Including class in App_Code and Partial Class(aspx pages and asmx user controls)
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Jan 23, 2011
i have a usercontrol named filebox (which wraps a fileupload and some related stuff) in a certain .net class i have need to use this type as a ctype but i cant seem to call ctype(aobject,filebox) or either ctype(aobject,Controls_filebox) (which is the correct name) how can i convert an object to this type?
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Jan 16, 2010
i have code in .cs class file
i need it in .vb
i used conversion tool for converting
but i feel its not proper as i am not able to reference it in my page
is there any other way
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Mar 27, 2011
i have a user web control wich has the website menu. this menu is viewed through out the entire web site.
i would like to mark the selected link, on the menu with in the web user control,in some way (red background or w/e) the thing is, i cannot manage this from client side since there is a page_load on every click on the menu (witch brings up a different page). the only thing i can think of is saving the click to the session and then retrieve what was clicked and change the style accordingly via c# in the code behind.
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Aug 31, 2010
I'm trying to create a user control class that extends Panel. Essentially, what I want to do is to have a panel that fires off an event whenever it's clicked upon.
So, I create something like this:
[Code]....
And then, in the ClickPanel.ascx.cs file:
[Code]....
I'm not exactly sure whether this would work as I haven't had the opportunity to test it yet.
The problem is that I can't have a class inherit from Panel. Creating a user control class requires that my class extend User Control - at least that's what the error messages have been saying up until now. The problem is that if I do extend it from the base class of UserControl then I lose all the functionality of the Panel itself and the entire thing is rendered pointless.
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Nov 14, 2010
I have a series of dynamic controls that I'm adding to a page. These are listboxes.
I am adding a handler dynamically e.g. AddHandler listboxname.SelectedIndexChanged, AddressOf listboxSelectedChanged
However, this subroutine looks as follows:
Public Shared Sub listboxSelectedChanged(ByVal sender As Object, ByVal e As System.EventArgs)
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Feb 2, 2010
I'm working on a project that uses a master page. When the page loads I'm calling a class (which I feed and ID into) to get back certain values for a location that the user has selected. Things like town name etc.
On the home page I have a user control which has some statistics for that location too.
Is there a way that I can get the user control to pull values from the class invoked by the Master Page (which has already been fed the ID, hit the db and pulled back the values), rather than creating a new instance of the class within the user control and having to supply the ID and hit the db all over again? This is now I'm calling the class in the masterpage. I have a method "CheckForStoredLocation" that goes off and gets all the data I need.
[Code]....
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Aug 27, 2010
i have to write this piece of code in almost 10 to 15 content pages. i am just wondering if i can class file as base class for my content pages and write this piece of code in that class.
[Code]....
can somebody guide me how to write the base class for this scenario?
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Mar 5, 2010
I am using file upload control in aspx page. I want to put file upload logic in class library. but not getting how to distribute logic.
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Jan 19, 2011
i have a usercontrol named filebox (which wraps a fileupload and some related stuff) in a certain .net class i have need to use this type as a ctype but i cant seem to call ctype(aobject,filebox) or either ctype(aobject,Controls_filebox) (which is the correct name) how can i convert an object to this type?
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Apr 2, 2010
I am part of a team that is developing a SharePoint web part. My task is to create a user control which will ultimately be wrapped in another class for presentation in a web part. Because of these requirements, I must fit all of my code in a single user control.To organize my code in the code-behind, I created a few private classes for the different objects which are represented in the database. I want to add some exception handling whereby if some sort of DB exception is thrown I can update a message on the page informing the user of the problem.
My problem is that the page-level controls are inaccessible from the private class where I'm issuing the query, so even if I catch the exception I have no way of directly accessing a Label control to populate the error. I tried to create a baseclass with an EventHandler defined, but when I throw events from the private class I'm not able to catch them for whatever reason. I'm far from an OOP expert Here is a snippet:
ASP Code:
using System;
using System.Collections;
[code]....
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May 24, 2010
I have a class UserControlBase that inherits System.Web.UI.UserControl and my user controls inherit UserControlBase class. UserControlBase has some common functions that are used in all user controls.
I want to put error display funtion to UserControlBase as well so that I may not have to declare and manage it in all user controls. Error will be displayed in some label in usercontrol. Issue is how to access label which is in usercontrol in UserControlBase in function ?
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May 25, 2010
I have a user control (uc1) which inherits from uc2. uc2 has a user control (uc3) declared in the markup. I am trying to access uc3 from uc1 but I get NullReferenceException. I thought due to inheritance uc3 would instantiate but looks like I am missing a step.
Clarification:
How does the child user control inherit the markup from the base class? The server controls in the base user control are null in the code behind of the base user control. Why?
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Jul 15, 2010
I have created a user control which is inside a folder called Controls and the class is a partial class which inherits from Web.UI.UserControl. Now from my page which is one level up I just try to access the method inside the usercontrol and so trying to cast it as the type of user control. But I get build errors. It just cannot recognize that class. I get Type not defined error. But at times it has recognized the class. Dont know why it does that.
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Mar 5, 2010
Do we have to do something special to have ASP.NET partial classes aware of controls that are declared in our user control's base classes? The partial classes keep generating declarations for controls in the base class which mean the controls in the base class get hidden and are null.
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Oct 5, 2010
How can I to use System.Drawing.Bitmap class into athoer class?
using System.Data;
using System.Collections;
using System.Globalization;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
namespace University
{
public class Class1
{
System.Drawing.Bitmap BMP=new System.Drawing .Bitmap();
}
}
when I use System.Drawing.Bitmap gives error this class does not exists
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Aug 20, 2010
Since we can access the private data member of base class in the derived class with the help of friend function. How can we do the same in C# asp.net? I mean whats the alternative of friend function in C# asp.net
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Mar 13, 2010
Using the following Webservice definition using aClientArgs as a complex type:
[System.Web.Script.Services.ScriptService]
public class Controller : System.Web.Services.WebService {
[WebMethod]
public void save_client(aClientArgs client)
{
// Save client data
}
}
Then defining aClientArgs as a sub-class:
public class aArgs
{
public string id = null;
public string name = null;
}
public class aClientArgs : aArgs
{
public string address = null;
public string website = null;
}
Returns the following WSDL fragment for the save_client args:
<save_client xmlns="http://tempuri.org/">
<client>
<address>string</address>
<website>string</website>
</client>
</save_client>
When I'm expecting the following:
<save_client xmlns="http://tempuri.org/">
<client>
<id>string</id>
<name>string</name>
<address>string</address>
<website>string</website>
</client>
</save_client>
So it appears that the .NET WebService is not treating inherited properties as arguments/variables for purposes of a web service. How do I get .NET to also use the properties of the base class?
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Aug 10, 2010
I first need to apologize in case this has been answered before but I'm a newbie (green as they come) and this error keeps popping up even before I start debugging! There are two errors and the second one is:" Error 2
Missing partial modifier on declaration of type 'WFPKenya2.WFPKenya2'; another partial declaration of this type exists"
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May 15, 2010
here is the code, where i am confused what to write in all the properties and functions of the base class stream?
I want to inherit abstract class Stream, but confused about what to write?
[Code]....
I could'nt understand how to define these Properties,Sub and Functions. How i start?
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Jul 23, 2010
List New Class takes up memory?Do I need C=null; in the code below?
//class Category
public List<Category> SelectAll()
{
List<Category> LV = new List<Category>();
string command = "SELECT * from categories";
SqlCommand sc = new SqlCommand(command, new SqlConnection(GlobalFunction.Function.GetConnectionString()));
sc.Connection.Open();
SqlDataReader dr = sc.ExecuteReader();
using(dr)
{
[code]...
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Feb 15, 2011
I'd like to inherit all my controllers from a custom base class that I write myself. I can change the line every time I add a new controller, but it would be nicer if I could somewhere specify the default value that gets set there. That way I wouldn't need to worry about forgetting this, and other people who get added to the project later on would have an easier time.
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