Hi,
I'm really get confused on this issue. Hope that someone can help me get
clear after this post.
Take the class System.Web.Cach ing.Cache for example. In the documentation,
there's a property called Item and the description is:
"Gets or sets the cache item at the specified key. In C#, this property is
the indexer for the Cache class."
But when I tried to access this property, using Cache.Item["keyVaule"], the
compiler complains:
'System.Web.Cac hing.Cache' does not contain a definition for 'Item'
Can someone explain this strange behavior to me ?
Thanks a lot.
--
Dotnetjunky
4  1694 
Check this link out, it explains indexers in detail. http://www.csharp-station.com/Tutorials/Lesson11.aspx
--
Rob Windsor
G6 Consulting
Toronto, Canada
"Dotnetjunk y" <do*********@no reply.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. .. Hi,
I'm really get confused on this issue. Hope that someone can help me get
clear after this post.
Take the class System.Web.Cach ing.Cache for example. In the documentation,
there's a property called Item and the description is:
"Gets or sets the cache item at the specified key. In C#, this property is
the indexer for the Cache class."
But when I tried to access this property, using Cache.Item["keyVaule"],
the compiler complains:
'System.Web.Cac hing.Cache' does not contain a definition for 'Item'
Can someone explain this strange behavior to me ?
Thanks a lot.
--
Dotnetjunky
Hi,
In these cases where the doc say that the property X is the indexer you
access it without the property name, the compiler knows how to find it,
cause it's the indexer.
you access it using Cache["key"] you do not have to use the .Item
construction.
Hope this help,
--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Dotnetjunk y" <do*********@no reply.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. .. Hi,
I'm really get confused on this issue. Hope that someone can help me get
clear after this post.
Take the class System.Web.Cach ing.Cache for example. In the documentation,
there's a property called Item and the description is:
"Gets or sets the cache item at the specified key. In C#, this property is
the indexer for the Cache class."
But when I tried to access this property, using Cache.Item["keyVaule"],
the compiler complains:
'System.Web.Cac hing.Cache' does not contain a definition for 'Item'
Can someone explain this strange behavior to me ?
Thanks a lot.
--
Dotnetjunky
So, my question is why the doc shows the Item property ?
Is it correct that the Item property is only for other languages, but not C#
?
--
Dotnetjunky
"Ignacio Machin" <ignacio.mach in AT dot.state.fl.us > wrote in message
news:O2******** ******@TK2MSFTN GP12.phx.gbl... Hi,
In these cases where the doc say that the property X is the indexer you
access it without the property name, the compiler knows how to find it,
cause it's the indexer.
you access it using Cache["key"] you do not have to use the .Item
construction.
Hope this help,
--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Dotnetjunk y" <do*********@no reply.com> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. .. Hi,
I'm really get confused on this issue. Hope that someone can help me get
clear after this post.
Take the class System.Web.Cach ing.Cache for example. In the
documentation, there's a property called Item and the description is:
"Gets or sets the cache item at the specified key. In C#, this property
is the indexer for the Cache class."
But when I tried to access this property, using Cache.Item["keyVaule"],
the compiler complains:
'System.Web.Cac hing.Cache' does not contain a definition for 'Item'
Can someone explain this strange behavior to me ?
Thanks a lot.
--
Dotnetjunky
Is it correct that the Item property is only for other languages, but not C#?
Yes
Mattias
--
Mattias Sjögren [MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/
Please reply only to the newsgroup. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Wael |
last post by:
Hi,
I created a custom control, but I can't add an item property to it. I
tried the code below, but when I click the property, it shows a list of
Objects. I can't figure out how to have items to hold only integers.
Even with Objects, they seem to be readonly. I can't assign values to
them.
<Bindable(True), Category("Data"), DefaultValue("Item")> Property
() As ArrayList
|
by: Gerald Lightsey |
last post by:
I am doing some work that involves automating MS MapPoint 2002. The
object model is documented in the context of Visual Basic 6.0. A
typical example follows.
'Output first result of find search
Set objFindResults = objApp.ActiveMap.FindAddressResults("One Microsoft
Way", "Redmond", , "WA", , geoCountryUnitedStates)
MsgBox "The first item in the find list is: " _
+ objFindResults.Item(1).Name
|
by: Fernando Chilvarguer |
last post by:
Hi
On Microsoft documentation (both on my MSDN library localy and online) the
System.Collections.ArrayList class contains a Item property.
When I try to use it I can't see that property available (using object
browser).
Has anything changed?
Online Doc URL:
|
by: Marc van den Bogaard |
last post by:
hello together,
my datarow.item property is missing, i just can accesss the ItemArray
property,
what is wrong with this?
System.Data.DataSet dataset1 = new System.Data.DataSet();
System.Data.DataTable datatable1 = new System.Data.DataTable("table1");
|
by: Stijn Verrept |
last post by:
I found several code examples on the net but this doesn't want to work.
Label2.Text = filesIDData1.Tables.Rows.Item;
There isn't a Item property in C# while all the examples have one. How
should I do this? I need the value of the field TP_Name of the
selected row (just put 2 there for now) .
I found another msg on usegroups with the same question but no answer.
| | |
by: Tim Murphy |
last post by:
When creating a collection class that inherits CollectionBase what advantage
is there for the Item property returning CType(List.Item(index),
<objecttype> ) over List.Item(index).
Looking at the help file I guess speed and that's a good thing but what is
the point when if you use "for each ... next" the Item property is NOT used.
Surely most collections are accessed via "for each ... next" as opposed to
"for nItem = 0 to nItems". Am I...
|
by: Jeremy McPeak |
last post by:
I am writing a collection. I downloaded the Rotor kit and started looking at
how the classes in System.Xml are written and am using them as a guide. For
my collection, I thought I'd use XmlNodeList as my pattern.
Two particular things stand out:
public abstract XmlNode Item(int i);
and
|
by: Vik |
last post by:
I used to work in VB.NET. Now in C#, I have:
using System;
using System.Data;
using System.Data.SqlClient;
DataRow dr;
Then I want to use dr("ColName") but there is no Item property in the
IntelliSense. What is wrong here?
|
by: GaryDean |
last post by:
The docs say that the DataRow class has an Item property so I could set a
value without having to know the column name i.e. myDR.Item = myString;
but, there is no Item property in the DataRow.
What am I not understanding?
--
Regards,
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
| | |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
| | |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
