I receive the error "No parameterless constructor defined for this object", I have read some post on this forum about this error, but i cannot get it to work.
ViewModel
[Code]....
Controller:
[Code]....
[Code]....
I'm very new to Visual Studio and I am getting this error when trying to update an Oracle table from Gridview using a tableadapter datasource. I've followed the instructions in my text very closely but am at a loss as to why this error is occurring.
Details: System.MissingMethodException: No parameterless constructor defined for this object.
Source Error:
[Code]....
Stack Trace:
[Code]....
this is the stack trace error I am getting. At this point, I'm a little clueless how to resolve it.
I am doing Music Store sample application.Here my code.
StoreViewModel
[Code]....
StoreController
[Code]....
Create.aspx
[Code]....
But when i click Save it show Error
Server Error in '/' Application.
No parameterless constructor defined for this object.
First I incorrectly had my node defined in /shared/web.config instead of the web.config in the root of the WebUI project. I also had not correctly defined my connection string within web.config. I have pasted the proper web.config sections below:
[code]....
I've set up a strongly-typed View and a controller method to save the object represented in that View. The object in question is from a class that uses named parameters with default values. This is not a database object, but rather is the intermediate object that is used for the display and user input. It gets translated into a database object in the service class. Anyway, when I attempt to save the object, I get the following error:
System.MissingMethodException: No parameterless constructor defined for this object.
This is kind of aggravating. I can add a parameterless constructor to the class, and then everything works just fine. I just don't understand why it is necessary. I'm new to named parameters with default values, but the reading and such that I've done has described that method calls with default values do not have to have a 'no-parameter' implementation. You can just call the method with any or none of the parameters specified and everything works as expected. If there is a 'no-parameter' implementation and no params are passed, then that one is used, since it is more specific than the one with default values. Is the behavior somehow different when this is used in the constructor of a class? Why would I have to include a parameterless constructor when I have all the values accounted for? Is the runtime creating an object on the fly as the save method executes, which requires this? The method is like this:
[Code]....
I'm wondering if the object is instantiated by the runtime in order to populate the method parameter, and then assigned values from the form collection. I suppose that would make sense, but I do not understand why this causes an exception. For what reason would a parameterless constructor be required?
I have no idea why my form submit is not passing the model back to the Controller action
Here is the View:
[Code]....
Heres the Controller:
[Code]....
Here is my Model:
[Code]....
By default Index, renders with an empty results set, on button press i want it to go to the "StartSearch" Action, and rerender the index with possibly non-null results set.
Does anyone have any good examples of how to make Unity 1.2 or 2.0 work with ASP.NET WebForms?
I thought I had this figured out, but evidently I'm missing something. Now I'm getting the error; "No parameterless constructor defined for this object". I remember getting this error a couple years ago, I and just don't remember what I did.
Obviously Unity isn't working as it should because somewhere along the way I've forgotten something.
Here's some of my code:
Global.asax
[code]....
I'm trying to list all data from one table(ms sql server table). as ORM I use Entity Framework. now, I'm tried to write something to do this:
Model:
[code]....
I'm using a GridView and a LinQDataSource (Northwind database) and this error appears when website runs.
Here is my codes on aspx file and no codes in cs file.
[Code]....
I have impelemented my own mvc pattern to my website , when I add desired type for my ObjectDataSource pointing to the controller class although GridView refreshes schema in designer just fine I get an error in runtime saying : "No parameterless constructor defined for this object." which is self explaining but I wonder why does it happening because I've used this pattern once and didn't have that issue , here is the bit of code that is causing this issue , what to do to keep my mvc and make it work :
[Code]....
I have a usercontrol which implements iwebpart and this is loaded into a webpart by adding it to the webpartmanager on the page. But i'm getting the error message "No parameterless constructor defined for this object." and i cannot find out what i'm doing wrong. The control is loaded into the webpart by:
_childControl = Page.LoadControl(_userControlVirtualPath)
I've created a web service , which can a method to set the user credential using Microsoft.Web.Services3.WebServicesClientProtocol. The sample code is :
<WebMethod()> _
Public Sub ClientCredential1(Of TSecurityToken As SecurityToken)_
(ByVal UserCred As Microsoft.Web.Services3.Security.Tokens.UsernameToken)
[code]....
When I run the web service it gives this error: "Microsoft.Web.Services3.Security.Tokens.UsernameToken cannot be serialized because it does not have a parameterless constructor."
i am taking data from two tables so i created one class and i constructed with two tables like this..
[Code]....
my edit post method is:
[Code]....
if i put PublisherViewModel in post function edit (ByVal aintEntityId As Integer, ByVal model As PublisherViewModel) As ActionResult. i am getting this error when post edit function called. No parameterless constructor defined for this object.
I got error. rectify This error.
Object reference not set to an instance of an object.
Description:
An unhandled exception occurred during the execution of the current web request. 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.
I've been using the Smtp server 127.0.0.1 .The error I get:
System.Net.Mail.SmtpException: Cannot get IIS pickup directory.at System.Net.Mail.IisPickupDirectory.GetPickupDirectory().
This Error occured ,when Email send from ASP web page.But EMail send from ASP.NET page,error is not occurred.
when we declared as static then we will not create the object to call the static method. then my doubt is how is call the static constructor after creating the object?can you explain cleary?
View 1 Repliesxml parsing error no element found location line number 1 column 1. If run every application this error come (in mozilla only). how to rectify this error.
View 1 RepliesI create an one webpage in asp.net all the time i am facing the following pbm how to rectify it..
if(ds.Tables[0].Rows.Count > 0)
in my code i use in the web config the following code
Code:
<compilation debug="true" strict="false" explicit="true">
<pages enableViewStateMac="true"/>
<machineKey validationKey="135265D42623958C1E84631D0AB327E8E43 3978BD4A28FC0A0CD71E38A5F3D4F950DD32034058613CBFF0 890211D4E6F4C6E79EDC6A522572B31F3583DC5D929" decryptionKey="FE65F6B07ACA419BC98EC59992702913509 ECDA570BDA0B86643F4EE21643671" validation="SHA1" decryption="AES"/>
i use this code because i had problems when 30 minutes of the last action were past then it didnt found the other pages of my project with this code it works fine
but i have a subfolder inside the project and there the problem still exists
i had a web config there then i tried to adjust the previous code inside this second web config but i took this error "It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS."
I have written the following code in Global.asax but I'm getting error The remote server returned an error: (404) Not Found in the
[Code]....
i created a web application by using Asp.NET webform, NHibernate to access Sql Server 2008 database and StructureMap as IOC Container.
Everything seem to work ok since few users use it; when user number increases (we can say 10+ users) webapp crashes with this error:
System.OutOfMemoryException
I downloaded redgate ants suite: the performance tool says that maximum cpu time is in NHibernate createSessionFactory for a GetAll request.
This is my NHibernateHelper object:
[code]....
I started an app in VS2008. I did it as a web site. I installed VS 2010 (yay) today. I wanted to start over as a web project. I made a Master Page. I made content pages. One of my content pages has a form on it. Super simple text boxes and submit.
I added a folder called App_Code and placed my class files there by doing Add New Item and pasting the code into the new class. I have person and persons. The persons collection class references person. In the same folder, the persons class finds the person class. Up one level in a page's code behind, I am gettingthe error
The type or namespace name 'person' could not be found (are you missing a using directive or an assembly reference?)
For giggle, I move person.cs up a folder. Still cannot find the person. Persons collection class still CAN find person. My code behind cannot find it.
A little reading tells me I have to set that folder as an app folder in IIS. I am running Windows 7 ersonal... I cannot find IIS. If not there, I ask myself what they heck is my app running under?
for being such a noob. Anyone know what is going on here?
Now I'm developing the autogenerated mail program in my web application system.
And there is my code :
[Code]....
My environment is using Microsoft Exchange Sever and if I send my company address each other, there is no problem.
(e.g: my email addrss is [URL] and receipent address is [URL]
But when I send to [URL] I mean any other external mail address, I cannot send... the error message appears like this :
[code]...
I am working with visual studio 2010, ms sql server 08 R2, IIS 7.5, I am trying to connect to the database the following error appear every time I try to open the connection with the server:
Cannot open database "db" requested by the login. The login failed.
Login failed for user 'NT AUTHORITYNETWORK SERVICE'.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Cannot open database "db" requested by the login. The login failed.
Login failed for user 'NT AUTHORITYNETWORK SERVICE'.
Source Error:
[Code]....
Source File: c:inetpubwwwrootMS2010App_CodeNewsDTO.cs Line: 49 Stack Trace:
[Code]....
I have a web appliation , taht is developed using linqs to acess datasource and insert , update , delete data
and i have database ,
when i run this appliation in my system its work fine,
if i move this appliation to another pc, and i have database , when i run this application its not wrking
Cannot open database " xxx" requested by the login. The login failed.