Silverlight - Useful Extension Methods In System.data.* Namespace?

Nov 21, 2011

I have a number of very useful extension methods that I'd like to use in my Silverlight project.I've pasted the Module here [URL]The problem I'm having is that visual studio complains that the dlls my module have been written against have not been built against the Silverlight runtime.Is there an easy way to get these extension methods working in Silverlight?I'm thinking my main hurdle is getting IObjectSet and ObjectContext to run against the Silverlight run-time - perhaps there's another way to expose these methods that I'm not aware of.

View 1 Replies


ADVERTISEMENT

[2005] Throw Exception - Used Methods From Namespace System.IO

Mar 12, 2009

I want to throw error, if i used methods from this namespace System.IO

For example,

If i write File.Delete("TempPath") , i have to throw undefined Method..

View 1 Replies

'SqlConnection' Is Ambiguous In The Namespace 'System.Data.SqlClient'?

Mar 10, 2009

I have imports namespace System.Data.SqlClient.I just create object of SqlConnection,But error is there-
'SqlConnection' is ambiguous in the namespace 'System.Data.SqlClient'.

[Code]...

View 1 Replies

VS 2005 'SqlConnection' Is Ambiguous In The Namespace 'System.Data.SqlClient'?

Jan 23, 2011

I am creating class libraries in my project so that I can update code without having to update the whole app.I created a class library project and added some code to it. I also added a reference to System.Data.SqlClient and also imported it into the class file.I am getting an error and I have never seen it before. Been looking online and not able to find an answer yet.

View 2 Replies

.net - Extension Methods In T4?

Mar 28, 2012

I'm trying to use PGK.Extensions in a T4 template in VS2008 for VB.NET and I get:

RemoveAllSpecialCharacters is not a member of string..

My T4 headers:

<#@ template language="VB" hostspecific="false" debug="true" inherits="Microsoft.VisualStudio.TextTemplating.VSHost.ModelingTextTransformation" #>
<#@ output extension="vb" #>
<#@ assembly name="PGK.Extensions.dll" #> // the dll is found
<#@ import namespace="StringExtensions" #> //Try with and without namespace

[Code]...

View 1 Replies

Why Use Extension Methods

Jan 7, 2010

I would like to know your opinion on extension methods. Sure, it is a nice feature and makes you feel powerful. It's great to see your own method pop up when typing in a object. But it doesn't really add something new... You can get the job done with normal methods as well. I think extension methods do not belong in object oriented programming. It makes your code easier to read but harder to understand for someone else.

View 2 Replies

Type Or Namespace Name 'Messaging' Does Not Exist In Namespace 'System

Apr 10, 2010

The type or namespace name 'Messaging' does not exist in the namespace 'System' (are you missing an assembly reference?)

View 2 Replies

.net - Extension Methods Error ?

Mar 7, 2011

CODE:

View 2 Replies

Asp.net Mvc - Combining Extension Methods?

Sep 5, 2009

I'm trying to write 2 extension methods to handle Enum types.One to use the description attribute to give some better explanation to the enum options and a second method to list the enum options and their description to use in a selectlist or some kind of collection.You can read my code up to now here:

<Extension()> _
Public Function ToDescriptionString(ByVal en As System.Enum) As String
Dim type As Type = en.GetType
Dim entries() As String = en.ToString().Split(","c)

[code]....

So my problem is both extension methods don't work that well together. The methods that converts the enum options to an ienumerable can't use the extension method to get the description.

View 1 Replies

Extension Methods For Object

Nov 9, 2011

I wonder why it's impossible to create and extension method for Object? I use Excel PIA. The property Cells of Worksheet returns Object (if using with indexes). For example, Worksheet.Cells(1, 1) returns Object type. I know it's a Range object, and I want to cast it to Range. It would be convenient to write following:[code]

View 5 Replies

How Do Extension Methods Really Work

Jan 25, 2010

I know what extension methods are, how to create and use them, but I wanted to know more about how they actually work. How do they "attach" themselves to the type of object that you are extending? Or is there even an attachment being made. I know want to know more about the inner workings, etc.. I looked around and read several different blog posts about extensions and not one of them discusses how they actually work.

View 6 Replies

System Namespace Conflict With Sibling Namespace

Nov 16, 2011

This class is located in the namespace Acme.Infrastructure.Interface.A class with the same name EventArgs exists in the System namespace.In another project in my solution I have a class Acme.BusinessModules.MyModule.MyClass.When attempting to use the EventArgs class I have to fully qualify the class name or the compiler thinks I am using the System.EventArgs class.My understanding of namespace resolution was that the compiler would first look for the class in the current namespace, and then its parents. It seems that the compiler checks in System before it checks in sibling namespaces. Is it correct that System is checked before the sibling? Or is this behaviour caused by other issues (Imports order?)?

View 1 Replies

.net - Extension Methods In Referenced Assemblies?

Sep 16, 2010

If I try to call my extension method which is defined like this:

Module LinqExtensions
<System.Runtime.CompilerServices.Extension()> _
Public Function ToSortableBindingList(Of TSource)(ByVal source As IEnumerable(Of TSource))

[code].....

View 1 Replies

.net - Syntax And String Extension Methods

Aug 30, 2011

Code in VB.NET

[Code]...

works very well. So seems some consistency miss of the string constant behavior.

2) Have a look on the COMMENTS (in the attached picture). The words "custom", "string" and "error" are highlighted, however they are in the comments, so should be green, not blue.

Why this? What workaround? EDIT: Declared as "bug" in Microsoft Connect (even if is not more that a syntactic "miss")... EDIT 2: As remarked Hans Passant, standard string methods, like "cucu".Trim() does not work either.

View 2 Replies

.net - Using Extension Methods From Within An Object's Constructor?

Feb 8, 2010

Consider the following:

Public Module Extensions
<Extension()> _
Public Sub Initialize(ByRef Target as SomeClass, ByVal SomeParam as Something )

[code].....

Why is Case 1 failing to initialize the object as expected?

View 1 Replies

How To Know If Class Has Been Extended With Extension Methods

May 30, 2012

In VB.NET or C#, is there a way to determine if a class has been extended with extension methods?

View 3 Replies

Way To Add An Overload To A Method That Already Has One Or More Extension Methods?

Jan 8, 2010

Is there anyway to add an overload "extension method" to a method that already has one or more extension methods?For example theString.Contains method has two extension methods totalling 3 separate versions.Is there anyway to add an extra extension method also called "Contains" ?By the way I have tried it but the IDE does not seem to recognise additional EXTENSION methods where a method already hasone or more extension methods.Is there anyway around this restriction?In other words I would like to be able to change the Extension method below from"Contain" to "Contains" but it seems it is not recognised.

Option Strict On
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles

[code].....

View 4 Replies

.net - Extension Methods From C# Dll Doesn't Work As Extensions?

Sep 17, 2010

I made a library in C# and I've been told by people that one of mine methods don't work in VB.NET as extension [UR]

this is the method:

public static PropertyDescriptorCollection GetProps(this object o)
{
return GetProps(o.GetType());
}

View 1 Replies

.net - Extension Methods In VB 2008 Assembly Cannot Be Used In A C# Project?

Jun 1, 2011

I wrote some string extension methods in a VB assembly and am unit testing them from a C# project. However, C# acts like it cannot see the the extension methods, when other VB projects reference the VB assembly they have no problem. Both the VB assemebly and the C# test project are targeting .Net 3.5. Is there a way around this?

[Code]...

View 1 Replies

Extension Select Methods For Entity Framework?

Dec 14, 2011

I have many similar calls to database and they work fine

Using ta As New QT_SSTEntities
Return ta.Product.
Select(Function(c) New RadComboBoxData() With {.Text = c.FieldName1, .Value = c.FieldName1}).

[Code].....

View 1 Replies

Compiler - External-only Properties Or Methods - From The Internal Namespace?

Nov 30, 2009

Is there a simple way in vb.net to mask a public property or method from the internal namespace? It would be helpful as a refactoring tool to isolate internal dependencies and perhaps to enforce a non-recursion policy for external services.

View 2 Replies

.net - Check That Extension Methods On An Array Got A Specific Size?

May 30, 2012

I'm using extension methods based on an array and I would like to know if there is an easy way to check that array got a specify size instead of me doing a copy paste of

if array.count != 1000
throw new exception "size of the array does not match"
in about ~50 extensions

this a small sample of extensions that I use, I got WAY more

<Extension()>
Public Function IsWhite(ByVal board() As bitPiece, ByVal pos As Integer) As Boolean
Return (board(pos) And bitPiece.White) = bitPiece.White
End Function

[code]....

View 3 Replies

Doesn't C# Extension Methods Allow Passing Parameters By Reference?

Aug 11, 2009

Is it really impossible to create an extension method in C# where the instance is passed as a reference?

Heres a sample VB.NET console app:
Imports System.Runtime.CompilerServices
Module Module1

[code].....

View 3 Replies

LINQ To XML Result Object Not Showing Extension Methods

Jan 9, 2012

I have the code as below:
Dim xdTest As XDocument = XDocument.Load(GetXMLPath())
Dim objResult = From xe In xdTest.Elements("Some Element") _
Where xe.Element("strName").Value = strInput _
Select xe.Element("intValue").Value
objResult.
I cannot access any extension methods for objResult, like .ToList() or .First(). The file imports System.Linq and the project is targeted to .NET 3.5. How do I get the extension methods back?

View 1 Replies

MVC2 Extension Methods Throwing Errors In Views?

Nov 21, 2011

I have a project written in MVC2 and VB.NET. I use a lot of htmlhelper extension methods,and I have them all in a public module. They work just fine, and I can compile and run my project. I reference the namespace they are in with this:<%@ Import Namespace="MyProject.WebUI.Extensions" %>So, again, they work great, my project runs and compiles without a hitch.The problem is that each one of these extension methods is shown as an error:

Error 33 'TabbedMenu' is not a member of 'System.Web.Mvc.HtmlHelper(Of Object)'. C:ProjectsMyProjectMyProject.WebUIViewsSharedSite.Master 23 21 MyProject.WebUI

[code]....

View 2 Replies

Select File/folder In Namespace Extension In Windows Explorer?

Jun 9, 2012

I am having a namespace extension implemented, which is visible in "MY Computer". I want to write automated test cases to browse through the same. I am able to open the explorer window till the namespace extension. as -
Process.Start("explorer.exe", "shell:::{CLSID of my namespace }")

next I want to search for a particular folder name inside the window opened. For example if i give input as "temp", then my mouse should move to "temp" folder in the namespace explorer window. then I double click on the mouse's current position and enter that folder. next i give input as "doc1.doc", then my mouse should be able to locate & move to "doc1.doc" file. Also getDirectory or GetFile etc APIs won't work because I don't have a standard drive associated with my namespace & don't have a relative path either.

View 2 Replies

What Are Classes , Objects , A Namespace , Subroutines,functions,methods,properties And Difference Between Byval And Byref

Jun 26, 2010

I want to know what are classes , objects , a namespace , subroutines,functions,methods,properties and differemce betweem byval and byref in your words.

View 18 Replies

.net - The System.Linq.Dynamic Namespace - Visual Studio Does Not Recognize In The Project Files The System.XXX References

Aug 11, 2011

I would use the System.Linq.Dynamic. I added the specified Dynamic.vb file, that starts like this:

[Code]...

to my (VB.NET)solution. Now Visual Studio does not recognize anymore in the project files the System.XXX references, proposing me to change them to Global.System.XXX

View 1 Replies

Asp.net - .Net Iniatialising A Class Using System.Reflection And System.Type To Create A Session Based Singlton Extension Method

Jun 11, 2009

I have had several occasions recently to access a specific class several times over a relatively small time frame.So I've been storing the value of the class in Session and trying to access it on page load, if it's not available creating a new instance and storing that in session.

So instead of constantly replicating the same code for different classes on different pages I'm trying to create an extension method to do this for me.

[Code]...

I'm stuck on what to do when I make my new instance of my class (it would have to have a New() sub)

I'm not sure where to go from here... or even if this is the best way to do it.

View 2 Replies

Silverlight - Convert Int To System.Windows.GridLength In VB?

Dec 25, 2009

How can I convert int to System.Windows.GridLength in VB, NET so that I can set the height of a grid row in Silverlight (xaml).

In xaml file:

<RowDefinition Height="0" x:Name="rowerror" />

In VB.NET:

rowerror.Height = CType(30, System.Windows.GridLength)

This as I wrote in VB.NET. I know I'm wrong, but how do you do if the int to System.Windows.GridLength so that the height of the "rowerror" whether that be 30?

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved