Web Forms :: How To Add A Class To Web Application
Mar 28, 2010
[Code]....
2. To a working .aspx page I added few buttons:
[Code]....
3. To CodeFile for that page I added handlers for events, raised by buttons:
[Code]....
4. Now I expect it to work (I know I have only one button to show height of tree1). But it does not even compile. I am getting message
[Code]....
As I type code in event handlers IntelliSense does not shows tree1 so it looks it does not know that z_t1 exists in the project (it in thefolder App_Classes - I tried putting it into the App_Code - did not work, read in a post that it should be anywhere BUT App_Code). How should I tell it? Create a reference (how)? Use namespace (where and how)? Looks like I do not have any namespaces in that working page...
I tried to put z_t2 class (identical to z_t1) at the beginning of CodeFile of that page, first thing after Using statements and before "public partial class " for that page, changed z_t1 to z_t2 in the code - same effect - does not see tree1...
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Similar Messages:
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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Sep 21, 2010
In an old ASP.NET 2.0 Web Site application I have reference to a class named ProfileCommon which gives me access to profile properties from the Web.Config. Now I'm trying to port this application to ASP.NET 4.0 and cannot compile because this class is not available in the 4.0 version.... What is the best way to get around this problem?
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May 1, 2010
I have a class (.cs) in my web application project called CompanyResponseInfo.cs. This class inherits from a class called, ResponseInfo.cs, which is from a class library which is referenced as a compiled dll in the web application. CompanyResponseInfo is called from the ResponseInfo base class. In the CompanyResponseInfo class I need to build a file path to a file that resides in the directory 'web root/resources/standard.xslt'.
Now i know that because CompanyResponseInfo is instanciated from within the inherited ResponseInfo class from a referenced library, the 'System.Web.HttpContext.Current' object is null so I cannot gain access to MapPath and all the other Server object properties for me to obtain path properties relating to the web application.
I have also tried using 'System.Web.Hosting.HostingEnvironment.MapPath' which did work locally, but when I put the web application on our test IIS server it never worked correctly as it seemed to use the path in which IIS resides.
I guess this would be a common problem, so what are my options in my case when I need to get the absolute web application path so I can use it to get the absolute path for a XSLT file so I can load it into the XslCompiledTransform.Load()?
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Feb 28, 2011
I have two projects in one solution :
Class Library for my BLL and DAL classes Web Application for my PL
Now I just use the keyword "using" in the BLL and DAL classes and get access to their methods easily. but now I try to reference the BLL and DAL in the web application project through the "using" keyword but it won't let me (the name space couldn't be found (are you missing reference ?)) .. then I tried to reference the library's dll (grabbed it from the ClassLibrary/bin/debug) and the same error just popped out again!
Summery:
My solution consists of two projects (ClassLibrary and a WebApplication) and I want to use/reference the classes/dlls of the class library in the web application
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Apr 30, 2010
I've realised that I'm going to need to use a css class on all tables within my application.
<table id="tblSearch" class="eFoo-text"
The problem is that I've got lots of pages, which contain lots of user controls.
Luckly they all inherit from a single master page. Is there some way to say "use this class on all tables" somewhere in the master page??
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May 13, 2010
I'm working on an internet application that has been set up as a web SITE project (I know...) in Visual Studio. I need to add additional features/functionality so have added a class library to the project and referred to it in the main web site project.
The issue now arises because I need to make use of core objects which live inside the App_Code directory in the web site project but this project doesn't appear to expose its DLL like web app/ code library projects do. Because of this I can't add a reference to the web site project in the class library to leverage the common site-wide code/objects.
I can't move the stuff out of App_Code so I'm looking for a way to refer to the website project dll from the new class library.
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Jun 9, 2010
I set up various global parameters in Global.asax, as such:
Application["PagePolicies"] = "~/Lab/Policies.aspx";
Application["PageShare"] = "/Share.aspx";
Application["FileSearchQueries"] = Server.MapPath("~/Resources/SearchQueries.xml");
I have no problem accessing these variables form .ascx.cs or .aspx.cs file -- ie. files that are part of the Web content. However, I can't seem to access 'Application' from basic class objects (ie. standalone .cs files). I read somewhere to use a slight variations in .cs files, as follows, but it always comes throws an exception when in use:
String file = (String)System.Web.HttpContext.Current.Application["FileSearchQueries"];
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Mar 25, 2011
store our DAO objects in the Application object, so there's one object of each available for the whole application.
This Application object is easily accessed in the Page codebehind itself, but how do we access it from a plain class that is not extending anything?
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Jul 28, 2011
I understand the problem of the static variable inside a class in the web application, now I try to create a simple class to deal with SQL Server for example, so I created Static Method inside this class, this static method used in insert, update and delete from database, I wonder if this is safe, and there is no problems will appear ?
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May 7, 2010
I Have 2 Questions
1) What Is The Meaning of dr.GetOrdianal In ASP.NET Class File? What Is The Purpose Of The Same? Is It Compulsory To Write dr.GetOrdinal While Fetching Any Value From Database?
And
2) What Is The Purpose of Properties (Get & Set ) In Class File? Will It Saves Our Time Of Compilation?
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Mar 3, 2011
N - Layered Application: One class library for all layers or for each layer?
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Jan 23, 2011
Since App_Code doenst exist as an ASP.NET Folder, I manually added App_Code as a regular folder, then within that I placed technologydescriptor.cs. Although it now has the appearance of an ASP.NET Folder.But for some reason my code doesnt recognize this class if its w/in the App_Code folder. This is picked up if it is not within that folder- why?Error: "The type or namespace name could not be found, are you missing a using directive or assembly reference"
[Code]....
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Jul 14, 2010
i have an asp.net web application.
[code]....
When i click button 1, a new list is created. But when i click button 2, it gives me error, saying that its a null list.
The changes i did in Button1_Click() are somehow rolled back. I want to keep the changes.
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Jan 28, 2011
I have a separate environment for development. On my production server, where we mostly host web applications, we deploy the precompiled version of the web project. While doing development I work on three projects. One is the WCF Service. Two, is the class library project. This library has classes which makes calls on the WCF service. And the third, is a web project which consumes the class library.
The last two projects come under one VS solution. I host the wcf service in the development environment. This service is added as service reference to my class library. I am unable to visualize what will happen once I add the DLL (viz output of the class library project) to my web project, and, the web project has to be deployed. At the time of deployment I have to change the service reference (the url of the svc file will change as it has to point to the production wcf service). How to go about this? What must I take care when adding the dll to the web project?
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Sep 19, 2015
I've got a class that create a report in a PDF - looks like this
Code:
Option Explicit On
Imports PdfSharp
Imports PdfSharp.Drawing
Imports PdfSharp.Pdf
Imports System.Data.SqlClient
Public Class acsReportWriter
[Code] ...
And I access this class from within a web service call like this
Code:
Using acsRpt As New ACSReport.acsReportWriter
acsRpt.StartDocument(strViewName, strTitle, username)
Using dcn As New SqlConnection(connStr)
Using cmd As New SqlCommand
cmd.CommandType = CommandType.StoredProcedure
[Code] ....
So - in that web service I can access APPLICATION like this
Code:
With Application
.Lock()
' need to do work here
.UnLock()
End With
I need to be able to access APPLICATION from the acsReportWriter class to put status message every so often so another AJAX POST can fid out how many pages are done.
I'm having a hard time even adding IMPORTS to SYSTEM.WEB in the acsReportWriter class
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Mar 3, 2010
I am looking for differences between those 3 ways of using static class in asp.net application scope.
Will all of these point to the same class?
Which one is preferable >object< defined declaratively inside global.asax or static class ?
examples:
<object runat="server" scope="application" class="classname" ID="objID"></object>
VS
public static class classname {}
VS
Application("a") = new classname();
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Mar 16, 2011
I would like to ask a plain and simple question about the Model-View-Controller architecture - should the UML Class diagram for my application include all the controllers and views and their relationships, or should it just include my model classes, i.e. the entities that are the heart of the application, you know - like in an ordinary application - i.e. User, Administrator, Student, Teacher, Course, Grade etc...?
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Oct 8, 2010
When I make an asp.net web application and add class libraries to the solution, the website project itself has a folder with the same name/contents as the class library.
Eg I make a web application called Test, add a project which is a class library, to the solution, called testAbc, and then there is a folder at the root of the website project called testAbc with the contents of the class lib.
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Feb 14, 2010
When I make an asp.net web application and add class libraries to the solution, the website project itself has a folder with the same name/contents as the class library.
Eg I make a web application called Test, add a project which is a class library, to the solution, called testAbc, and then there is a folder at the root of the website project called testAbc with the contents of the class lib.
I read why this happens in a book a while ago but can't quite remember now.
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Nov 18, 2010
I need to keep a global variable throughout the whole time the user is at my site, but do I use Application or a static class? The string variable should store a region name and my site makes a few changes depending on which region that has been set.
I read that Application was mainly for classic ASP, but I also read that a static class cannot be instantiated at runtime (e.g. when the user has logged in).
So, have I got something wrong here and which solution do I use?
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Aug 12, 2010
I have a windows service that calls a class library. The call to the Class library from the windows form application works fine. But from the service I do get the desired output. The event viewer does not report any error. The service was working fine until the recently when the server got remastered. Any suggestions what might have gone wrong?
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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 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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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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