I have created a few WebRequest extension methods that support cancelling. Is it possible to mark related .net framework methods as Obsolete. That will allow other developers to get warning and encourage them to use a new extension methods.
View 3 RepliesIn .NET you can mark certain methods as obsolete so that developers are alerted when they attempt to use the deprecated method.
<Obsolete("Do not call this method.")> Private Sub FormerMethod()
The thing is you can only do this within classes you control. What do you do when you want your developers to avoid using certain methods on classes provided natively in .NET or by a vendor?
For example, what if you want your developer to prefer some custom extension method on DataTable rather than Select. I'd hate to have to define a custom version of the DataTable class if only to deprecate Select. That would leave us having to police whether or not the custom table was being used.
Here is a VB.NET Console module I'm testing to understand how Multi-Threading/Threads work.
Imports System
Imports System.Threading
Module Module1
Public Class SimpleThread
Public Sub SimpleMethod()
[Code]...
Is there an ability in VB.NET to deprecate code?I know that in C# there are 'attributes', and tags in java; is there anything similar in VB.NET, other than leaving a 'todo:...?
View 3 RepliesHow do I set ListView data through the codebehind instead of using the Bind() function in the Text attribute?Right now I'm doing the following, but I'd like to have it retrieved and set in the codebehind. I'm using VB..
<asp:Label ID="Date" runat="server" Text='<%# Bind("Date") %>'></asp:Label>
Edit: I'm binding the data in the following way with a DataTable.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
ListView.DataSource = MyDataTable
[code]....
here any algorithms/pseudocode for reading/parsing 3-column csv data and determining unique objects/attributes/values?
example data:
john,height,1.75
george,age,21
[Code]....
i have already implemented a solution of my own but it's too slow and i can't find any relevant literature on the internet.
Possible Duplicate: Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive
I am using window xp and iis 5.1 to run the application.
error is occurred Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive.
[Code]...
I get an error when I try to build my project.'SSLAccessFiltercannot' be used as an attribute because it does not inherit from 'System.Attribute'. [code]
View 1 RepliesI have the following issue - I amcodinga move directoryfunction into my program. It all works fine except the resulting moved directory (the files within) appear(s) with a lock on them and they have become read only when they didn't start that way. I'd like to prevent the read only attribute from happening. Below is the code which moves the directory. I put it into a backgroundworker.
Private Sub bwMove_DoWork(ByVal sender
As Object,
ByVal e As System.ComponentModel.DoWorkEventArgs)
[code].....
I wanted to know how to encrypt data.And I've found a solution at this web site.This script works if I use it as a function.Nonetheless, Visual Studio throws a warning that says the following.[code]Visual Studio underlines the second line after the equal symbol above.I have no idea what that means.Does anybody have any idea how I can resolve this warning?
View 6 RepliesI have VB.Net code in VS 2008 using an obsolete method, and would like to suppress the warning.Unfortunately, following the recommendation is not a good solution, because it requires using a different class, which works differently, in important ways.I'm trying to suppress the warning using System.Diagnostics.CodeAnalysis.SuppressMessage, but I don't know what to write as the parameters for the attribute, and can't find any relevant reference.
I should also say that, right-clicking on the error in the error list I don't have any 'Suppress Message' option.
I got this warning:
Quote: Warning1'Public Property Address() As Long' is obsolete: 'This property has been deprecated. It is address family dependent. Please use IPAddress.Equals method to perform comparisons. http://go.microsoft.com/fwlink/?linkid=14202'E:\_Visual Studio_2008VBPingerclassPingerpingerbib.vb16738pingerbib
with this
Dim ipaddress As IPAddress
Dim ip As Integer = CInt(Net.IPAddress.Parse(IP_adresse).Address
I just found out that the XmlDataDocument will be obsolete.I have the code below wich retrieves connection data from a very simple xml file:
Public Sub ReadXML()
Dim xmldoc As New XmlDataDocument()
Dim xmlnode As XmlNodeList
Dim i As Integer
'Dim str As String
[Code]...
I have a System.Web.UI.WebControls.Xml control (Xml1) in a webforms app that I have upgraded from .NET 2.0 to .NET 4.0
I am getting two warnings from the code-behind page that I'd like to do something about.
...
Dim ds As DataSet = app.GetObjects
Dim xmlDoc As New System.Xml.XmlDataDocument(ds)
Xml1.Document = xmlDoc
[Code].....
I have VB 2008 and am trying to find a multithreading example that won't show up as obsolete. (seems like most examples are releavant for vb 2005) I found an example on the back ground worker. Is this true multi threading?I am working on a project that needs to go out and get data often but still allow the user to interact with the menus and graphics.
I'd like to put the data grabbing on a timer on a seperate thread. how to make a timer and related data grabbing a seperate thread so I don't have "starts/stops" in the gui?
I have the following Sub Routine in my vb.net project which runs fine, but I constantly get build warnings:
'Public Overridable Sub RegisterClientScriptBlock(key As String, script
As String)' is obsolete: 'The recommended alternative is
ClientScript.RegisterClientScriptBlock(Type type, string key, string
[code].....
When using: vb System.Net.Dns.GetHostByAddress it states that it is obsolete, and to use GetHostEntry instead. But for some IP's this errors whereas GetHostByAddress does not... for example:
[Code]...
I have upgraded a visual basic 2005 project to visual basic 2010 (.net framework 4.0). I want to list all obsolete functions used in this project in order to change it with newer ones. How can I treat obsolete functions warnings as errors in visual basic 2010 ms-build?
View 1 RepliesIs it possible to prevent compiler warning caused by a static factory method returning an instance of an obsolete class? For example if an instance of an obsolete class (Foo) is created through a static method (Create) a compiler warning is caused by the factory method.
<Obsolete()> _
Public Class Foo
Public Shared Function Create() As Foo
[code]....
In C# the warning could be suppressed using "#pragma warning..." but I don't think that this exists within VB.Net. Migrating to C# is not an option due to business requirements.
Is it possible to prevent compiler warning caused by a static factory method returning an instance of an obsolete class? For example if an instance of an obsolete class (Foo) is created through a static method (Create) a compiler warning is caused by the factory method.
<Obsolete()> _
Public Class Foo
Public Shared Function Create() As Foo
[code]....
In C# the warning could be suppressed using "#pragma warning..." but I don't think that this exists within VB.Net. Migrating to C# is not an option due to business requirements.
I'm using Microsoft.Reporting.Webforms version 10 in order to parse an RDLC file and produce a PDF. The RDLC is a simple invoice with a couple of embedded expressions. When I run the application I get an exception that a call to the obsoleted SecurityAction.RequestMinimum has been made when compiling the expressions. Is this a known bug or something I can remedy?
[Code]...
I'm getting this warning in my Output window (which doesn't affect functionality but I don't really understand it:
Warning: 0 : Use Procedure Bodies is now obsolete.Use Check Parameters instead
I'm using MySql.Data 6.3.7.0?
I have a POCO object and I want to mark a property as a key (see TestClass below).I'm getting the following error. 'Key' cannot be used as an attribute because it is not a class. C:UserszzzDocumentsVisual Studio 2010ProjectszzzzzzBOTestClass.vb
[Code]...
I want to use a value that is pulled from the SQL within the if statement. Ideally i want to do the equivalent of <% If DataBinder.Eval(Container, "DataItem.BookID") == 1 Then%> Is there a way to do this with the correct syntax?
View 2 RepliesThe numbers that get displayed are beyond the 2000. How do I write the code to only display numbers up to 2000.
Sub Main()
Dim iNum1 As Integer
Dim iNum2 As Integer
[code]......
I have a program that takes data from text boxes and exports them to a text file (all of this works). the problem I'm having is how do i mark the file for deletion? I couldn't find a tutorial on it.[code]
View 1 RepliesPossible Duplicate: Place watermark image on other images (C#, ASP.Net) how to add water mark to a photo during uploading in asp.net ???
View 1 RepliesI am trying to create an HTML email with an attached image using asp.net VB.
The trouble I am having is that the image is stored as binary code in a table rather than on the server.
I have the following code:
Dim myHeader As New LinkedResource(Server.MapPath("/Handler.aspx?id=237"), "image/jpeg")
I know it's the question mark in the path that's causing the problem. Does anyone know a way around this??
I have a DataTable which I want to check if values in three of the columns are unique. If not, the last column should be filled with the line number of the first appearance of the value-combination.
[Code]...
I solved this by iterating the DataTable with two nested for loops and comparing the values. While this works fine for a small amount of data, it gets pretty slow when the DataTable contains a lot of rows.My question is: What is the best/fastest solution for this problem, regarding that the amount of data can vary between let's say 100 and 20000 rows? Is there a way to do this using LINQ? (I'm not too familiar with it, but I want to learn!)
In my application I have bound a datagridview to a SQL2005 bindingsource.I really had to change a database field (more length allowed) and now de DGV displays red exclamation marks and states: 'Colomn 'password' exceeds the MaxLength limit'. (the 'password'-colomn isn't even displayed, but that's a sidenote).I tried different things but can't get rid of the exclamation marks. how I can manage this. I really don't want to create a new DGV, because there a lot of code and stuff involved.
View 2 Replies