i need to create a instant of class by string value which store in hiddenfield.value()
string str = "myclass1";
var x = new <str>();
or
var x = new <hiddenfields1.value.tostring()>();
I am using asp.net 2005 with vb and developing MCQ program.
I am reading question information from a database and array . the array is "public shared" one. the problem is when two users are login to the system both are getting the same array.
my reqrement is give seperate instances for the diffrent users.
as an example the first user can open paper with 25 questions and second user can open paper with 10 questions. First it display no of questions as 25 and when then second user open the site, then the first site also display the total no of question as 10.
I tried to use variable declareing with DIM statement then they are unable to access from other events.
I am writing a C# MVC5 internet application and am having some trouble getting the 'ApplicationUser' object in a controller that I have created.
Code:
var userManager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(new ApplicationDbContext()));
ApplicationUser user = userManager.FindByNameAsync(User.Identity.GetUserId()).Result;
When I try to run this code, when a user is logged in, I am getting a null object for the 'ApplicationUser' user.
We all know that, we cannot create the object of Abstract class.
But why it is so?
I mean, can anyone explain it with real time example?
how to create object of HttpResponse class
HttpResponse response=new
HttpResponse (TextWriter
tx);
how to inplement this wrong code to right one & how to implement TextWriter.
Why do we use the reference of abstract class (or base class) to create object of it's sub-class. eg: TextWriter is the abstract class for StreamWriter & StreamWriter.
TextWriter writer = new StreamWriter();
why can't we simply use :
StreamWriter writer = new StreamWriter();
I have a product class which contains 11 public fields.
ProductId
ShortTitle
LongTitle
Description
Price
Length
Width
Depth
Material
Img
Colors
Pattern
The number of fields may grow with attributes for more specific product tyes. The description may contain a large amount of data. I want to create a slim version of this product class that only contains the data needed. I'm only displaying 4 of the 12 fields when listing products on a category page. It seems like a waste to retrieve all of the data when most of it isn't being used. I created a parent class of ProductListing that contains the 4 fields I need for the category page
ProductId
ShortTitle
Price
Img
Then created a class of Product that inherits from ProductListing containing all product data. It seems backwards as "ProductListing" is not a kind of "Product" but I just started reading about inheritance a few months ago so it's stil a little new to me. Is there a better way to get a slim object so I'm not pulling data I don't need? Is the solution I have in place fine how it is?
How to create object of class file (asp.net) using javascript and call is methods.
View 1 RepliesFor some unknown reason I suddenly am unable to create an object variable for a Linq Data Class. If I create a new project and try the process again with the same database everything works as advertized.The code I am using is Dim db As New RoggDataContext which gives me an error on the object variable "db": Overload resolution failed because no accessibility 'NEW' accepts this number of arguments.I have looked inside every file in the Web Project like the web config to check the connection string, gobal, and designer.vb looking for any errors whit no JOY. I also tried to create a new form and code behind with a button and received the same error.This is mind blowing because as I already stated, I can create a new Web Site and the problem goes away.
View 3 RepliesAm looking for control like html editor in windows forms so i want to use ajaxtoolkit.dll for html editor.
Can i create object for toolkit and use htm editor.
for example while we composing mail we have options like bold italic for these options and also i want to change rich text to html code .
I have a Google spreadsheet that I am reading data from and I want to load the data into a list object so I can use but I am having some issues.
Google Spreadsheet
-Worksheet name: Charts
-Tab: Color_Summarized
-Column 1: ColorSummary
-Column 2: ChildID
-Column 3: ParentID
sample rows:
Aqua|29|28
Blue|49|23
Yellow|55|28
My results are
Yellow Color_Summarized FH 55 28
How do I need to set it up so it keeps all the data loaded instead of just the last instance? Is there a better way then putting in class?
My code:
Code:
Imports Microsoft.VisualBasic
Imports System.Data
Imports System.Collections.Generic
Imports Google.GData.Spreadsheets
[code]....
I keep getting this error
This is the code
Sub btnAdd_Click(sender As Object, e As EventArgs)
'converting datatypes to integer
Dim insertB As Integer
Dim insertA As Integer
Dim cat As Integer
cat = ddl.SelectedItem.Value
[Code] .....
I've scenario where I want to insert data into database without post back. there are around 12 to 13 fields which i need to insert. I'm passing DTO from the client side which is actually Json object. Now the problem which i'm facing is how to convert that Json object which i got in webservice to the "class" (in my case class name is User) object.
[Code]....
In the above case AddNewUser method takes the object of User class. But i'm getting casting error. So how do I convert Json object to the "User" class object?
I have an existing class for an input, is it possible to add an additional class for the object in C#.net, instead of doing a if/else and not having a preset class on the object in the first place?
View 3 RepliesI am getting object refernce error at line:if (Session["Tax"].ToString() == "9")
protected void Page_Load(object sender, EventArgs e)
{
if (Session["Tax"].ToString() == "9")
{
lblTax.Text = Session["Tax"].ToString();
}
else
{
lblTax.Text = "0";
}
}
Is anything wrong I have done?
<%@ Import Namespace="System.Data.SqlClient" %>
<script runat="server" >
Dim connStr As String = ConfigurationManager.ConnectionStrings("cc").ConnectionString.ToString
dim db As New Data.SqlClient.SqlConnection(connStr)
why this error
Object reference not set to an instance of an object.
Actually i want to cast the type from find control to div but i cant find the class with div or body or form name why so?
View 5 Replieson VWD 2005 this code works fine, but on 2008 it says I haven't created an instance of the object. I want to convert the object connString (a connection string) into a string.
'This acceses the virtual directory web.config file for connection strings
'We have to convert the object to a connection string
Dim rootWebConfig As System.Configuration.Configuration
rootWebConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("/VirtualDirec")
Dim connString
As System.Configuration.ConnectionStringSettings
connString = rootWebConfig.ConnectionStrings.ConnectionStrings("ConnectString1")
Dim strConnString
As
String = connString.ToString().......
public class Package
{
public Package()
{
name = "";
type = new List<Dictionary<string, string>>();
}
public string name { get; set; }
public List<Dictionary<string, string>> type { get; set; }
}
[code]...
What would be the best way to deserialize this
Dictionary<string, object>{
{"fName", "John"},
{"lName", "Doe"},
{"email", "john@doe.net"}
}
to this
class Member{
string fName;
string lName;
string email;
}
I need to load an XML document into my Dictionary<string,string> object.XML looks like:
<nodes>
<node id="123">
<text>text goes here</text>
</node>
</nodes>
How can I do this using XmlDocument?I want readability over performance, and I find XmlReader to be hard to read b/c you have to keep checking the node type.
I used Object Test Bench to test my classes in VS 2008 professional edition . Right click on Class name and then selected create instance ,then its Constructor, there comes a dialog box, that just gives a message and a TextBox field is present there, i filled that field with any name and clicked OK.Then error message comes that "Create Instance Failed" and its error code is "0x80004005" . What's this ? How to instantiate object of my classes ?
View 4 RepliesI was planning on handling the Session_OnEnd Event to check for new messages from other users in the database and display them, but the timeout value only works in minutes, not seconds. If there anything else that I can do to process an event every two seconds for a certain web page?
View 5 RepliesIf I log on to some websites such as Facebook & Twitter and leave the page open, it will seem to update in the background.
So if I get a new message, it will alert me, without me needing to refresh at all.
What technology they are using to achieve this and if it is possible in ASP.net?
Is it possible to replicate this on a Hosted Web Site environment or would it only be possible if I had full control of the web server?
C in ASP.NET using C#
View 1 Replies