Whenever I try to use the Website Administration Tool i get an error messege stating:
error invoking ad&minister website.
Details: The method or operation is not implemented.
How can I fix this?
I have an asp.net web application. When I try to export a report via crystal report I get following error :Error in File C:DOCUME~1UserLOCALS~1TempMainReport {7F8A9E9E-DD47-4D17-A44D-68D9478A792C}.rpt: Operation not yet implemented.I use this code to export report :
ReportDocument reportDocument = reportSource.ReportDocument;
reportDocument.SetDataSource(dt);
Response.ClearContent();
Response.ClearHeaders();
reportDocument.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, false, "Report");
I am working on a asp.net reporting project using crystal reports. I am a little new to working on making the project dynamic or reducing down code.
I have many aspx pages which are using the same logic of collecting input from textboxes and inputing to business logic layer.
I was thinking if someone can suggest me inheritance and interface/abstract method to be implemented on muliple aspx pages?
used the built-in Membership framework and has implemented his own provider by creating a class that inherits from MembershipProvider (found in System.Web.Security). I actually went ahead and created a custom provider which inherits from MembershipProvider. The problem is that there are several methods I do not really need. Also, the schema is totally different. Plus, most methods return a MembershipUser which means my User class has to inherit from it as well. So really, what benefits does the MembershipProvider and the whole Membership framework add to my system? Do these benefits justify the fact that I won't be using most of the methods on the class?
View 7 RepliesI have the following query:
Dim roommates = From p In dbroom.Residents _
Where p.room = queryStudent.First.r.id _
Where p.building = queryStudent.First.b.id _
Where p.year = year _
Where p.semester = term _
Select p.person_name
It currently returns no results. I was getting an error when attempting to bind this resultset (since it was empty) to a repeater in ASP.NET, so I attempted to escape it:
If roommates.Count() = 0 Then
Dim nomates As String = "No current roommates."
rptrRoommates.DataSource = nomates
rptrRoommates.DataBind()
Else
rptrRoommates.DataSource = roommates
rptrRoommates.DataBind()
End If
But I still get the same error:
The method 'First' can only be used as a final query operation. Consider using the method 'FirstOrDefault' in this instance instead.
Error:
Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.Local its run fine. when i place in iis. it throw this exception.
in my case, It is the windows service which in running the long running insert/update on a table and I need to cancel the operation from my ASP.NET application. In the above link Burnsys suggests that one should kill the Sql server session. Is that really only way and a goood practice to do this? Also, in the same poset can use SqlCommand.Cancel to cancel. However, I am not sure how can I cancel the command from the windows service from ASP.NET application.
View 1 Repliesguys, i have an application that uses Active Directory Authentication and deployed the application several days ago without any error. Today, I got this error.please refer to the image. I find it weird because I didn't change any code to my webconfig file since i deployed the application to the server. I've notice that it's working if it's [URL](by opening the source file in server and debug it) however when i try to access the application through [URL] I'm getting this error. I'm using 2.0 framework And here's my web.config
[Code]....
I have a class that runs calculations on numbers and populates the results to my SQL database. My code behind page instantiates the class object, and in a loop it makes use of the method five times (once per loop). Essentially, my code behind collects the information from controls and passes the information to the class method for processing. The method works just fine most of the time.
On one of the iterations I get a error before the code even gets to the class. The error is, "Arithmetic operation resulted in an overflow." What strikes me as odd is that while stepping through the code, the loop crashes with that error before getting to the class that runs the calculations. Additionally, no arethmetic operations are performed on the form's code-behind page (which calls the method). I even put a break-point on the class constructor but the code crashed before reaching that constructor.
The information being sent is the results of matches from a sporting event. As a troubleshooting measure I changed the order of the matches by deleting them an re-entering them into the database in a different order. Again only this one particular match crashed. Here is the code that crashes:
[Code]....
i have an dll file which is data access layer of my application.
i am getting this exception while accessing databse
Description:
The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission contact your system administrator or change the application's trust level in the configuration file.
Exception Details:
System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
I'm trying to use the Membership.CreateUser method without passing a security question and answer. I set them to string.empty, but no go. I have my provider set to not require a question in my web.config. What am I doing wrong?
[Code]....
I was wondering if there's anybody that can give me an idea how the component Calendar (even button) is implemented. Do you know a place where I could see it?
View 1 RepliesI have own control implemented in "CommonControls" assembly (the same namespace). It us 'Custom control' inherited from 'WebControl' class and implemented without ascx file.
It is necessary to use this control in "main" web site. how to register this control?
I know it should be something like this:
<%@ Register Assembly="CommonControls" Namespace="CommonControls"
TagPrefix="uc" TagName="TopMenuControl" Src="..." %>
But what should I specify in the "Src" property?
I have just been dabbling in MVC over the last couple of weeks. Knew I wanted to go in this direction but have been putting it off due to comfort/familiarity with webforms. Also knew that with my first MVC site I wanted it to support mobile devices. One of the first tutorials I saw implemented an Area for mobile support. I started that way as well.
Since I want to get off on the proper footing here I guess I'd like to ask you guys. What would the best practice be? Is it just a matter of preference? Are there any specific pros or cons to using or not using Areas when it comes to support for mobile devices?
suggest me a good design pattern for implmenting the following? I have an object say myObject. This myObject is created using few inputs from the UI. After the creation of myObject. This object will be passed to few methods.. like method1(myObject);
method2(myObject);... method5(myObject);etc. Each methods will prepare the input for successive methods call. For example method1(myObject) will set the values necessary for the operation of method2.Then method2(myObject) will set up the values necessary for the operation of method3 and so on..Same object is used as the argument for every method calls.Which design pattern can be implemented?
I want to implement a restful service in ASP.NET. I want it to be compatible with .Net 2.0 and IIS 5+. I am constrained to not use ASP.NET MVC or REST starter kit. By reading on internet I have learned that it can be implemented using HTTPHandlers. The problem is, the request will come in as a POST request. And I want to URL to be like:
http://abc.com/MyService/MyMethod1/
and
http://abc.com/MyService/MyMethod2/
I tried to figure out NHibernate (a first) First went through chapter 23 in Asp.Net MVC in Action 2, and read some articles to get the drift.
Then I modified the sample in the above book to work with my own database and my own table. Finally got that working. (Started messing with this yesterday afternoon....it's 7:30 AM, so .... I'm tired...)
Then I worked this into my own project (the shared mvc template some of you might have looked at).
Now my application became completely unstable. Sometimes it work, but other times it bombs out where my controller factory (Castle) set the component lifestyles:
[Code]....
Each time with some LoaderException that read like {"Could not load file or assembly 'Castle.Core, Version=1.1.0.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)":"Castle.Core, Version=1.1.0.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc"}
Man I fiddled all over the place, having xcopy copy dll's (see krok.web properties got a post build event) and many other things I that does not really make sense.
And from the darned instructions, having all your dll's in a folder which get copied out to the web project's bin folder and dont know what else.
Seriously...if someone can download this and have a look (better not if you dont know Castle Windsor and NHibernate)
I am having troubles understanding the purposes of using Factory pattern, I understand Factory pattern uses Factory class that has methods to return concrete objects. But why don't I simply use new opertor to create concrete objects? Some articles suggest Factory methods could return objects of different concreate classes, I can do the same thing by using switch statement.
Also are there classes in .Net framework already implementing Factory pattern? I think that will give me a better ideas why it is useful.
Here I have a code using ControlBuilder to make DropDown control generic.
[ControlBuilder(typeof(EnumDropDownControlBuilder))]
public class EnumDropDown : DropDownList {
private string _enumType;
private bool _allowEmpty;
public string EnumType {
get { return _EnumType; }
set { _EnumType = value; }
}
public bool AllowEmpty {
get { return _allowEmpty; }
set { _allowEmpty= value; }
}
}
public class EnumDropDown<T> : EnumDropDown where T : struct {
public EnumDropDown() {
this.Items.Clear();
if (AllowEmpty) this.Items.Add(new ListItem("", "__EMPTY__"));
foreach (string name in Enum.GetNames(typeof(T))) {
Items.Add(name);
}
}
public new T SelectedValue {
get {
if (IsEmpty) throw new NullReferenceException();
return (T)Enum.Parse(typeof(T), base.SelectedValue, true);
}
set { base.SelectedValue = Enum.GetName(typeof(T), value); }
}
public bool IsEmpty {
get {
return base.SelectedValue == "__EMPTY__";
}
set { base.SelectedValue = Enum.GetName(typeof(T), value); }
}
}
public class EnumDropDownControlBuilder : ControlBuilder {
public override void Init(TemplateParser parser, ControlBuilder parentBuilder, Type type, string tagName, string id, IDictionary attribs) {
string enumTypeName = (string)attribs["EnumType"];
Type enumType = Type.GetType(enumTypeName);
if (enumType == null) {
throw new Exception(string.Format("{0} cannot be found or is not an enumeration", enumTypeName));
}
Type dropDownType = typeof(EnumDropDown<>).MakeGenericType(enumType);
base.Init(parser, parentBuilder, dropDownType, tagName, id, attribs);
}
}
Sorry the program is too long to read cheerfully. The question is, although I defined property EnumType, AllowEmpty in class EnumDropDown. Since the real object created by ControlBuilder is EnumDropDown, values of EnumType, AllowEmpty are always null and false in control object. All attributes set in .aspx will be lost! I can read attribute values of source tag in ControlBuilder. But I have no any idea how can I copy the attributes to the generic control object.
I have been asked to join a very small team where one main developer has been buiding the web app (.NET 4.0) during ~6 months. The project should be delivered within next 2 months.
After first look at the code I can say that I would never allow it to go to production (things like catch { }, no tests at all with WebForms etc).
So the code quality is incredibly low.
My task is to improve that and still deliver the solution. So I plan to start with unit testing and MVC2 reimplementing most of the functionality (though using some of the existing code).
I estimate that I will need about 6 weeks to catch up with the current progress and be on te same functionality level as the application will be in 6 weeks.
The problem is that the main developer who has been working on the project seems to be really starting in IT and many basic things are unknown to him. It will take significant amount of time and effort to educate him how to do the proper testing, development and apply some patterns.
I am ready to take responsibility for the reimplemnting the application but at the same time I don't want the main developer to be on idle but as he won't be able to significantly contribute to the better-world project at this stage I am not sure what would the best way to keep productivity high for both of us.
Currently I think following solution is good enough: He proceeds doing what he does until I will catch up with him and then start working on a new project together.
The problem is that of course this approach is not very productive as one developer will do better-world project while the other will proceed with what he did, effectively doing similar tasks.
Another approach would be to pair and try to do things together, but again not sure how productive we will be.
Can you suggest how we could better organise the work together in order to be most efficient for the overall project?
rapidshare,hotfile and many site they restric user to download more than one file at a time. what is their concept and how can i implement this concept by asp.net
View 1 RepliesHow can I do this?I want to be able to manually specify the location that I want the user to be redirected to using this method....?
FormsAuthentication.RedirectFromLoginPage
I have a WCF service and there are four methods in it. I want to allow 2 methods to client 1 and the other 2 methods to client 2.
View 2 RepliesI want to know how can I protect my password in login & register pages because I am not using .net's Login or CreateUserWizard controls.I want an encryption method for this process e.g. when storing password in the database form the register page and when comparing the password with stored password in database to varify a user in login page.
View 3 RepliesI have few queries regarding installation of SSL certificate.How much time will it take in installing the SSL certificate and getting the IIS https enabled?
Is there any risk involved with the installation of SSL certificate that might bring down the applications hosted on the IIS.Will the application hosted on that IIS continue working with HTTP?(I don't want each application to be https enabled.