Automatically Generate ComClass Attribute And Guids?
Apr 27, 2009
I've run across some VB.NET code that explicitly creates three GUID constants and uses them in a class's ComClass attribute. I've written COM-aware classes in the past just by checking the "Make COM-Visible" and "Register for COM interop" options in the project options. Is this explicit code simply unnecessary, or is it doing something above-and-beyond what those two options do? Here's a snippet:
<ComClass(MenuHandler.ClassId, MenuHandler.InterfaceId, MenuHandler.EventsId)> _
Public Class MenuHandler
Public Const ClassId As String = "A2204623-A902-44d4-B524-FDFFCD176E53"
[Code].....
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Apr 26, 2012
I am building a tool that takes an XML document and replaces XML nodes with a different XML node using .ReplaceChild. This all works great. The nodes get changed to the proper nodes. Where I seem to be having an issue is that the new node is inserted with an xmlns="" attribute, which I am not specifying for it to do, nor do I want as an attribute. How can I stop the ReplaceChild from inserting this as an attribute, or am I going to have to remove the attribute after the node is replaced?
Dim imgSrcNode As XmlElement = xmlDoc.CreateElement("img")
Dim imgSrcAttr As XmlAttribute = xmlDoc.CreateAttribute("src")
imgSrcAttr.InnerText = "./art/" + imageName.Substring(0, imageName.LastIndexOf("."))
imgSrcNode.Attributes.Append(imgSrcAttr)
mmlNode.ParentNode.ReplaceChild(imgSrcNode, mmlNode)
Resulting XML change:
<img src="./art/equJI161298_1" xmlns="" />
XML change desired:
<img src="./art/equJI161298_1" />
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Feb 1, 2012
I am writing an encryption application that requires a 64 bit key. I am currently using the following code to automatically generate a key.
Function GenerateKey() As String
' Create an instance of a symmetric algorithm. The key and the IV are generated automatically.
Dim desCrypto As DESCryptoServiceProvider = DESCryptoServiceProvider.Create()
[code]....
I am wanting the user to create their own key. Can I convert a user defined password (a string) into a 64 bit key that can be used?
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Feb 5, 2010
How to generate mouse click automatically in another program wind?
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Jun 22, 2010
I am making a project on cyber cafe and I want to generate username and password automatically on different clicks. I am using
txtusername.text=cstr(int(rnd()*1000))
It gives random numbers but in a same sequence like whenever I run and click on generate button it shows
973
again click
950
again click
939
But when I close my program and again running program then same sequence starting from 973
973
again click
950
again click
939
So I want codes for generating random string or integer without repeating sequence after programme closing again and again.
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Dec 19, 2011
I would like someone to modify the following code to save data to generate the primary key for each record automatically. In the database,the ID column is the primary key and the Is Identity is set Yes.
Try
cmd = New SqlCommand("Insert into StudentDetails.programmes(ID,Programme,Form,AcademicYear,Class) values(@ID,@Programme,@Form,@AcademicYear,@Class)", cn)
cmd.Parameters.AddWithValue("@Programme", txtProgramme.Text)
cmd.Parameters.AddWithValue("@Form", txtForm.Text)
cmd.Parameters.AddWithValue("@AcademicYear", txtAcademicYear.Text)
cmd.Parameters.AddWithValue("@Class", txtClass.Text)
cmd.ExecuteNonQuery()
MessageBox.Show("Record successfully saved", "Saved", MessageBoxButtons.OK, MessageBoxIcon.Information)
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Jun 3, 2011
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code].....
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May 18, 2010
I followed an example from a VB 2008 Wrox book on creating, binding and updating a data set but I am having a problem. The code is supposed to automatically generate the update/insert/delete statements for me (according to the book) but when I call the update command, the data is not saved.
Here is my code
Code:
Imports System.Data
Imports System.Data.SqlClient
Public Class FrmAddExpenses
[Code]....
After the form is loaded, I change the EntryDate field (which is a DateTimePicker) and close the form which should save the change but it doesn't work.
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Jan 19, 2010
Recently I implemented an interface which had some 130 members that i should implement (C#, but i think thats irrelevant).How can i generate the stubs for all those automatically, in VS 2008...If its not possible in VS 2008, i've also installed Coderush Express, can some one guide me on how to do that with CR Express ?
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Mar 13, 2009
I've got a bunch of web page content in my database with links like this:
<a href="/11ecfdc5-d28d-4121-b1c9-1f898ac0b72e">Link</a>
That Guid unique identifier is the ID of another page in the same database.
I'd like to crawl those pages and check for broken links.
To do that I need a function that can return a list of all the Guids on a page:
Function FindGuids(ByVal Text As String) As Collections.Generic.List(Of Guid)
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Dec 13, 2010
When I run the code to setup the watcher everything run ok. When A new file is detected, I get the messagebox with no problem. After I click 'ok', the vb6 app that called this crashes with no error.[code]......
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Jan 29, 2010
I am trying to re-code a com object that was developed in c++ using vb.net. I have successfully recreated the methods and have been able to register my new vb.net com class with regasm and use it from vb-script. The issue is that the previous class used a coclass with a default interface allowing us to create objects in our vb scripts by simply calling the library.
eg.
Code:
dim z
set z = createobject("library")
my com object requires that i do the following
eg.
Code:
dim z
set z = createobject("library.interface")
because we do not want to redo all our vb scripts is there a way to have my code function in the same manner as the previous c com object? with out getting into great detail my vb code to create the class looks as follows which is essentially what vb.net provides me. for simplicity I have not added my methods. [Code]
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Mar 31, 2011
Paste the below into a C# Project and all is fine:
public class Test
{
public delegate void RandomEventHandler<T>(T newValue);
[code]......
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Nov 27, 2011
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.
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Nov 10, 2011
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]...
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Feb 2, 2012
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]
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Jul 20, 2011
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.
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Nov 6, 2009
Imports System
Imports System.Reflection
Public Module Module1
' An enumeration of animals. Start at 1 (0 = uninitialized).
[code].....
' 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..
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Sep 30, 2009
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>
[Code]...
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Dec 27, 2010
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]
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Jul 22, 2009
When 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?
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Dec 21, 2010
In 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?
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Oct 2, 2009
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)]
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May 7, 2009
I 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?
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Sep 18, 2009
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 />
[Code].....
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May 21, 2012
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}
[code]....
this works but it returns:
{ datefrom = test }
i just want it to state "test"
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Nov 10, 2010
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?
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Jul 15, 2010
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?
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Mar 6, 2010
How can I shift the GET-implementation of a Class property to a / using a custom attribute? (I've added instantation vars (classname, propertyname) to the attribute, however I'd rather have these automatically fetched ofcourse.)
Public Class CustomClass
<CustomAttributeClass(ClassName:="CustomClass", PropertyName = "SomeProperty")> _
Public Property SomeProperty() as String
Get() as String
[code]....
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Nov 14, 2011
<xml xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882"
xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:rs="urn:schemas-microsoft-
[Code]....
This is my Effect.xml file .I am using vb.net to access this xml file.
Actually i want to access effect name when i enter particular effect id.So that i will get attribute value of effect name when i give effect id as input value
How can i do using vb.net
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