I want to use LINQ over DataSet in my C# ConsoleApplication project.But i do not find System.Data.Extension.dll in Add Reference section of my project.There is System.Data.DataSetExtension.dll present. I added that file, but then which namespace to use in my project ?
View 3 RepliesDoes anyone know what could be the reason I am not able to add reference to System.Web. It gives an exclamation(!) symbol in front of the dll under reference folder in VS 1020. I wand to refer to System.Web.Security.MembershipProvider class.
View 1 RepliesI have downloaded Visual Web Developer 2010 Express and am trying to use LINQ. In order to do that I have added a LINQ to SQL class to the web site and have dragged tables from the database view into the LINQ designer, which worked fine.But..When I add: using System.Data.Linq;to MainPage.xaml.cs, I receive an error:
Error 3 The type or namespace name 'Data' does not exist in the namespace 'System' (are you missing an assembly reference?)Even although I have references to System.Core, System.Data, System.Data.Linq in the website references.
We have created an ASP.NET web app that upload files to WSS Doc Libary. The files get added under 'SYSTEM ACCOUNT' in the library. The FullTextSqlQuery class is used to search the document libary items. But it only searches files that has been uploaded by a windows user account like 'Administrator' and ignores the ones uploaded by 'SYSTEM ACCOUNT'. As a result the search results are empty even though we have the necessary data in the document library. What could be the reason for this?
The code is given below:
public static List GetListItemsFromFTSQuery(string searchText)
{
string docLibUrl = "http://localhost:6666/Articles%20Library/Forms/AllItems.aspx";
List items = new List();
DataTable retResults = new DataTable();
SPSecurity.RunWithElevatedPrivileges(delegate
{
using (SPSite site = new SPSite(docLibUrl))
{
SPWeb CRsite = site.OpenWeb();
SPList ContRep = CRsite.GetListFromUrl(docLibUrl);
FullTextSqlQuery fts = new FullTextSqlQuery(site);
fts.QueryText =
"SELECT Title,ContentType,Path FROM portal..scope() WHERE freetext('" +
searchText +
"') AND (CONTAINS(Path,'"" +
ContRep.RootFolder.ServerRelativeUrl + ""'))";
fts.ResultTypes = ResultType.RelevantResults;
fts.RowLimit = 300;
if (SPSecurity.AuthenticationMode != System.Web.Configuration.AuthenticationMode.Windows)
fts.AuthenticationType = QueryAuthenticationType.PluggableAuthenticatedQuery;
else
fts.AuthenticationType = QueryAuthenticationType.NtAuthenticatedQuery;
ResultTableCollection rtc = fts.Execute();
if (rtc.Count > 0)
{
using (
ResultTable relevantResults =
rtc[ResultType.RelevantResults])
retResults.Load(relevantResults, LoadOption.OverwriteChanges);
foreach (DataRow row in retResults.Rows)
{
if (!row["Path"].ToString().EndsWith(".aspx"))
//if (row["ContentType"].ToString() == "Item")
{
using (
SPSite lookupSite =
new SPSite(row["Path"].ToString()))
{
using (SPWeb web = lookupSite.OpenWeb())
{
SPFile file = web.GetFile(row["Path"].ToString());
items.Add(file.Item);
}
}
}
}
}
} //using ends here
});
return items;
}
http://msdn.microsoft.com/en-us/library/system.web.caching.sqlcachedependency(v=VS.90).aspx
I could not locate the class SqlCacheDependency as per this MS article!
I've a website in VS2008. I can not seem to locate Build Action property for any file contained in website.
View 1 RepliesIn my system, the data access layer of one of the website is build using the enterprise library. Now I am developing another [different] website. How can I use the enterprise library to create the data access layer? I am very beginner to Enterprise Library? How can I configure it for my website? Should I have to include the DLL? How it will take the connection string from the Web.Config file?
View 1 RepliesUnable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.TextBox'.
[code]....
Basically, what I did is that: I have a table in SQL database and some of data fields allow null. I built Objectdatasource through dataset. When I built update page using dataset. It generate the following error before showing the update page correctly. It seems I have issue to retrieve the null value from the database through using objectdatasource through dataset. Any suggestions?An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code
View 6 RepliesI am using following code.Its giving error:"No value given for one or more required parameters.".I am unable locate.
protected int _ExhibitionId;
_ExhibitionId=txtExbId.Text;
protected void GetVenueId()
{
try
{
OleDbConnection conn = new OleDbConnection(con);
string SqlString = "Select VenueId from ExhibitionMaster where ExhibitionId = ?";
using (OleDbCommand cmd = new OleDbCommand(SqlString, conn))
{
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddWithValue("ExhibitionId", _ExhibitionId);
conn.Open();
using (OleDbDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
_VenueId = Convert.ToInt32(reader["VenueId"].ToString());
}
}
conn.Close();
}
}
catch { }
is there a way of referencing a .NET 4.0 in a .NET 2.0 app? Whenever I try to compile and build I get an error saying:
Could not load file or assembly 'blahblahblah' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.
Ive tried adding the Library as a project AND as a .DLL but still no luck. Unfortunately converting the .NET 2.0 to .NET 4.0 is not optional...
I have a Class Library Project that I'm using in another Web application project. I've noticed that this has just copied the Class Library DLL into the Bin folder of the Web Application, and also that if I make some changes to the Class Library and rebuild the project, I also have to rebuild the Web Application for the changes to take effect there.
This kind of defeats the object why I'm creating a Class Library as I'm hoping to put some generic functionality in there that will be available to a number of different web applications.
i was wondering if it was possible to:create a new WCF Service Library project build the project and reference the dll in a web application,then consume the WCF service from the web application based on that basic dll reference
View 1 RepliesI have two projects in my solution: MyApp.Domain and MyApp.WebService. MyApp.WebService is a WCF service library. I want to use some utility functions from MyApp.Domain. So in MyApp.WebService, I added a reference to MyApp.Domain. Intellisense picked it up just fine, it recognized the function I need to call. But when I build the solution, I get this error:
The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) at using MyApp.Domain.Utility;
What's going wrong here?
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.
I have a web site project using the .NET 2.0 Framework that I am working on in Visual Studio 2008. I am using a third-party DLL in my project. I have added a reference to the DLL in my project and I can use everything as expected, including a number of extension methods for certain objects. Intellisense sees these extension methods, and I am able to make use of them and I can build my project on my local machine without any errors.
However, when running my website on a production server, I get a Compilation Error saying that the extension method I am trying to use could not be found. I can use everything else in the DLL besides the extension methods on the production server.
This is my first exposure to extension methods and understand what they are, but I can't seem to figure out why I can't make use of these methods outside of my local machine.
Is there a way to get a file count in a folder, but I want to exclude files with extension jpg?
Directory.GetFiles("c:\Temp\").Count();
i have installed ajax control kit successfully and all controls already came in toolbar tab named "Ajax Control toolkit"But when i try to design any page using with ajax control toolkit, follow error is coming:
Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.TypeLoadException: Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
Source Error:[Code]....
Stack Trace: [Code]....
[TypeLoadException: Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.]
AjaxControlToolkit.ToolkitScriptManager.OnResolveScriptReference(ScriptReferenceEventArgs e) in [code]...
I am using VIsual Studio 2008 , framework 3.5 but i don't know why in error information version is showing 2.0
i install tool kit according 3.5 framework.also note, framework built-in ajax tags i can use fine and they work properly.
Is there a class library reference for the AJAX toolkit controls. I would like to see all of the properties and methods of the Accordian control.
View 4 RepliesI'm working on an ASP.NET MVC application, but I'm trying to remove everything but Controller code from my project and put it in it's own Class Library. I've got some code that is using System.Web.Mvc; But it doesn't seem to be letting me access it. I have Referenced the System.Web Namespace in the project. Bassically I'm getting errors on the iActionFilter and the FilterAttribute stuff.
View 2 RepliesI have an asp.net website with a reference to a class library. I can reference the class library in the aspx pages but how do I configure my site so that I can also reference the class library from a .cs file in app code?
View 1 RepliesI'm migrating a piece of functionality from my App_Code directory to a separate project that's going to build a class library to be referenced by my web app. One of my classes in the App_Code piece inherits form System.Configuration.ConfigurationSection, like so:
Imports System.Configuration
Imports System.Web.Configuration
Imports Microsoft.VisualBasic
Namespace P10.WebStore
#Region "WebStore Section"
Public Class WebStoreSection
Inherits ConfigurationSection
I absolutely cannot get the project to recognize ConfigurationSection as a class. Nothing I google about this class mentions having to do anything special to use it. Is it because this is a class library and not an .exe or somethign?
Trying to explain this clearly. I have a dropdown listbox where user can select multiple names. These names are then selected/inserted into db table in a loop. Table is displayed in an editable gridview. I have a main sqldatasource1 on my aspx page with select/insert/update permissions, but because select command doesnt work with parameters of multiple values (or does it?), i resorted to using an alternative sql datasource in the codebehind in order to run the select query on the multiple values chosen from the dropdownlist to see if they were in my table.I now get this error when I go to select multiple names from the dropdown list
Unable to cast object of type 'System.Data.Common.DataRecordInternal' to type 'System.Data.DataRowView'.
I have several websites which get approximately 3000 pageviews in total per day, and I get this viewstate error roughly 5-10 times per day, caught in global.asax:
System.Web.HttpException: Unable to validate data. at System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString
I have written the following code for login:
Sessn["IsLogin"] = false;
System.Configuration.Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~");
if (txtPassword.Text.Trim() == string.Empty)
[code]...