When to use this attribute to set a defaultvalue?Mainly, does the initial value need to be set in a PUBLIC NEW SUB as per the response from forum user Michal Burger in this thread?
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Why is the first line not correct? What it wants is a System.Type and a System.String but refuses to work.
I have a text-boxes that use both the validating event as well as the lostfocus event.I have pinpointed the exception in the post title to the validating events.[code]Maybe I am unaware that CancelEventArgs are not suppose to be used in the validating event? [code]
View 4 RepliesI have a program that creates a Treeview from information procured through an ODBC query and dumped into a dataset. I have three such queries set up via radial buttons as well as a refresh button that triggers whatever radial button is active at the time it's clicked. The purpose of this program is to allow drag-and-drop of selected nodes, ending with a post to the database that officially makes that change of assignment to the new node.
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My project worked a first and now its giving me a problem.The error
Quote:
Unable to cast object of type 'System.Windows.Forms.MouseEventArgs' to type 'System.ComponentModel.RunWorkerCompletedEventArgs'.
Could not find type 'System.ComponentModel.IContainer'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built using settings for your current platform or Any CPU
View 7 Repliesworking around my project i'm using the BackgroundWorker , i've met this trouble. Calling a sub in module that will have to create an istance of a AxShockwaveFlashObjects.AxShockwaveFlash, the system give me this exception:
Unable to instantiate ActiveX control 'd27cdb6e-11cf-96b8-ae6d-444553540000' because the current thread is not a single-threaded apartment.
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 RepliesWhen I attempt to open forms in the designer in the IDE, I get this error:
Exception of type System.ComponentModel.Design.ExceptionCollection was thrown.
My project is building OK. Any ideas?
I created a simple program which basically launches programs installed on 32-bit system in the C:Program Files directory. I purposely put an .exe line of code in the compiler but that .exe wasn't installed on the system, I was expecting for an error when I tried to click the launch button and I did. NOTE: I already have a beginning If statement and that program is actually installed in the system, works perfectly no errors appearing.
ElseIf lstMultimedia.SelectedItem = "HyperCam" Then Process.Start("C:Program FilesHyperCam 2HyCam2.exe") 'this program doesn't exist in the system"
When the error appeared I looked at it in detail and found it was a system.componentmodel.win32exception type of error, I'm guessing that means a file doesn't exist in the directory I specified therefore the program displays an error.Now what I want to do is display a message box saying along the lines "This program cannot be found in your system" or something like that. But I don't know what the actual syntax/code for it, so far from thinking I have this.
Else : lstMultimedia.SelectedItem = 'no idea what to put here Then MessageBox.Show("This application cannot be found in your system or is installed in a different directory", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End If
When I dynamically compile SilverLight 4.0 application using Microsoft.VisualBasic.VBCodeProvider, I get the following error.
Line: 118 ErrorCode: BC30002 Error: Type 'System.ComponentModel.Design.HelpKeyword' is not defined.
Line: 130 ErrorCode: BC30002 Error: Type 'System.ComponentModel.Design.HelpKeyword' is not defined.
Line: 141 ErrorCode: BC30002 Error: Type 'System.ComponentModel.Design.HelpKeyword' is not defined.
Line: 234 ErrorCode: BC30002 Error: Type 'System.ComponentModel.Design.HelpKeyword' is not defined.
I got this warning that I don't know what it means.Warning1 The service System.ComponentModel.Design.IInheritanceService already exists in the service container.Parameter name: serviceType00
View 2 RepliesI'd like to auto-register the common/simple services in my unity container. I think the cleanest way to do this would be via a custom atribute.I can then examine all the (abstract) classes in an assembly and register those types with unity.The piece of information I'm missing is the interface(s) that the class wants to be registered against
eg:
Public Class AutoRegisterAttribute
Public Property ForInterface As System.Type
Public Sub New(ForInterface As System.Type)
[code]....
Note, I don't just want to find any class it implements as shown with IDisposableI've tried doing this using generics (generics can't inherit from Attribute), with a Type Parameter (Passing in IEngine.GetType results in a "Constant expression is required")
I'm using visual studio. I would like to change <DBNULL> default value of table date column into Today Date. I have try with lot of strings, but could not get right value. My goal is when I will create new record, column for date will take today's date.
View 2 RepliesHow would I set a Font Properties DefaultValue.
I am currently using:
Dim f as Font = New Font("Tahoma", 8.25!)
then in the property:
<DefaultValue(GetType(Font), "f")>
But the property defaults to "Franklin Gothic Medium" when I rightclick it and select Reset.
I'm using the following snippit of code to update an entry:
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles button1.Click
With SqlDataSource1
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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
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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.
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The problem im having grabbing the attribute names out of xml document. Here is the snippet:
<RUNWAY name="02X" length="3507" slope="-0.11" level_off_height="2228">
I have created a loop to display the results. In the snippet above, how do i grab the attributes name(name, length, slope, and level_of_height). I have used reader.name is giving me RUNWAY which is correct as the elements name. I tried getAttribute and it give me all of the values of the attributes, but not there name.
Imports System
Imports System.Reflection
Public Module Module1
' An enumeration of animals. Start at 1 (0 = uninitialized).
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' Output:
' Method DogMethod has a pet Dog attribute.
' Method CatMethod has a pet Cat attribute.
' Method BirdMethod has a pet Bird attribute.
i get this code from Attribute Class but how to use it in my application..
i have some xml like this:
Quote:
<?xml version="1.0" encoding="UTF-16" standalone="no"?>
<zylab>
<document version="1.1" guid="{5BB6C5FF-FDA4-4FC5-99A2-20CFDF5651FE}" date="20060928" time="00:13:12.017" size="35595" path="E:YIMAGEINDEX DATAPBITXT2006�0000000" name="200001TR.TXT" key="">
<fields>
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I have been parsing xml content using the xmlreader and cannot use the xml document but so far it works getting all elementcontent except for the attribute contents. I need to parse the link below found in the following entry;[code]
View 2 RepliesWhen is it run? Does it run for each object to which I apply it, or just once? Can it do anything, or its actions are restricted?
View 3 RepliesIn my VB 6.0 code, I declare have the following line[code]...
However, in VB.NET, I get the error "expecting declaration". Isn't this a declaration statement? Is there a good reference for finding the differences between VB.NET and VB 6.0?
I am converting C# code to VB.Net and the C code has this above the function:[return: System.Xml.Serialization.XmlElementAttribute("Name", IsNullable=true)]
View 3 RepliesI am trying to add an ID HTML attribute to a form using ASP.NET MVC and VB.NET
<%Html.BeginForm("Create", "Model", "", "", New With {.id = "CreateForm"})%>
This gives me a type error, since .id is expecting an Integer, not a string. How do add an ID attribute to my form?
i have the following XML result from a sharepoint webservice call. I want to get the calue of the OWS_ID attribute. How can i do that with vb.net?
<Results xmlns="http://schemas.microsoft.com/sharepoint/soap/">
- <Result ID="1,New">
<ErrorCode>0x00000000</ErrorCode>
<ID />
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what im trying to do is, i have the following xml:
Postcode id="E20 2AP" from="test1" to="test2"/>
im tring to search for the postcode id and then get the from and to text from that id the code i have:
Public Shared Function GetFromDate(ByVal PostCode As String) As String
Dim LoadToAddresses = From ex In doc.Descendants.Elements("Postcode") Select New With {.accountName = ex.Attribute("id").Value, .datefrom = ex.Attribute("from").Value}
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this works but it returns:
{ datefrom = test }
i just want it to state "test"
A former co-worker wrote a class in C# that was to be used as an attribute. I'm having to convert his work to VB (yeah, it's pointless and way more work than necessary, but management thinks it's a good idea). Unfortunately I'm having an issue because one of the main properties of the class is an ArrayList which is set with a ParamArray in the constructor. The class looks like this (note I've tried to abstract out the problem, so this is a simplified version of the class only)
<AttributeUsage(AttributeTargets.Field Or AttributeTargets.[Property])> _
Public Class LabelAttribute
Inherits Attribute
Public Sub New()
[CODE]........
In the first one, there is just the single label being added. No Problem. In the second one there are 2 different labels being added. Again, no problem. The third one, however, is a problem because it's assuming that the "Description", which is supposed to be the description is instead being interpreted as another label.
This wasn't a problem in C# because it could be set as follows:
[CODE].................
Of course this doesn't work in VB because optional parameters aren't referred to by name as they are in C#. As a stopgap I've changed the constructor to allow only a single label like this
CODE]..................
But that undermines some of what this class is meant to do. Does anyone know how, or even if I can get the same basic functionality to work in VB?
Think there must be a way to make the existing design work. Imagine this class was built into a library that I could not modify. Would I be forever forbidden from setting Description because of this design?
I have a C# web method that I need to translate to VB.NET. The method has following attribute:
[return: System.Xml.Serialization.XmlElement("MethodName", Namespace = "http://namespaceurl")]
public CustomClass Method()
....
The method returns custom class as result.How can I translate this to VB.NET?
