Knowing The List The Types Of Components That Are Provided By The .Net?
Jun 23, 2009I really need to know the list the types of components that are provided by the VB .Net?
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C# - Avoid Type Name Conflicts With Types Or Names In The User-provided Code?
Feb 6, 2011I am writing a code-generator that will need to output some miniscule portions of VB.NET code, and since this is a code generator that will add user-provider code, I'd like to try to avoid type name conflicts with types or names in the user-provided code.
In C#, I can prefix types with global:: to make sure they're matched from the global type namespace hierarchy, rather than some local name, but is there a similar system for VB.NET? ie. this: global::System.String
Avoid Compatibility Without Having To Have 2 Separate Components In 2 Projects For 2 Types Of Computers?
May 27, 2011Does it exist? Or is there some way to avoid these kinds of compatibility issues without having to have 2 separate components in 2 projects for 2 types of computers?
View 4 RepliesVS 2008 Will Not Need To Update Each Component Variable Of Products List When Components List Changes
Sep 21, 2010I think (?) this is about object design, and perhaps about structural and/or creational patterns. But a bit hard to say when I only know a couple of patterns yet.[code]But... what if we INSTEAD want each Product instance only to (in some way) refer to one instance of a specific list of Components. So we wan't to save the products list to one file, and the components list to another file. Then would I build the objects the same way, or different? So let's then say we have now Class B as below. [code]
1. Will not need to update each component variable of the products list when the components list changes.
2. If the Product object shall be shown in a DataGridView, for editing properties, it seems easier to implement the selection of the component property.
Is this wrong approach? Is it suitable in some cases, and if so, when? Are there other solutions I perhaps am not aware of that would be appropriate? Is this about structural design patterns? and if so, can the alternatives above be catagorized to some pattern type? I don't really know exactly what I'm looking for.. But I think probably I'm looking to understand whether the object design will be determined by the way the objects are saved.. And if i shall save the objects by serializing to file, vs saving to a database, would I create the business objects differently?
Pulling Street Based On City Provided From A List?
May 9, 2009I don't know what you would call it but I want to do something like this:
I have a list that contains the following and will have more in the future.
{buffalo}
street
street2
street3
{end}
[Code]...
Using Facebook API - Components Don't Show Up In The Toolbox Nor In The 'Choose Items' List
Oct 6, 2010Give me some kind of tutorial for using the FB API with VB.NET (2008). I tried installing the SDK, but the components don't show up in the toolbox nor in the 'Choose Items' List...
View 4 RepliesArray Of List Types
Jun 8, 2010I'm writing a program and currently have 4 lists called Palette1, Palette2, Palette3, Palette4.Each contain 15 list items of Color type.I was hoping to create an array of lists but have been unsuccessfull in doing so.[code]
View 6 RepliesCustom Chart Types To List Box?
Nov 14, 2009Is it possible to add Excel Custom Chart Type names to a list box at run time? That is, Microsoft.Office.Interop.Excel.Chart.XLChartType values to a list box?
View 1 RepliesList Encryption Types In Program?
Oct 31, 2011Could any one list the encryption types in Visual Basic.
View 1 RepliesSql Server - List Of All The SQL Types And Their .NET Mapping?
Nov 27, 2009I need a list of all the SQL types and their .NET (vb would be preferred, but C# also works for me)equivalent.
View 3 RepliesGenerics - List(Of T) - Use It To Hold Items Of Several Types?
Oct 3, 2009Assuming a base type of "Message"...
[Code]...
I would like to have one collection of Message objects which can be either PhoneMessages or MailMessages, so that I can iterate through the list and deal with each message based on what type it happens to be.
Attempting just to use .Add() fails, saying that I can't add an item of type PhoneMessage to a List(Of Message). Is there some elegant way to accomplish what I'm trying to do? I had thought I could accomplish this with generics, but I think there's a gap in my understanding. If it can be accomplished in .NET 2.0, that would be ideal.
Link :: Excluding Items From Different List Types?
May 18, 2009Is there any way to select items in a list that aren't contained in another? For example:list1 = From t In list1 Where Not list2.Contains(t.column1)That gives me the error:Value of type 'Integer' cannot be converted to '<anonymous type>'which makes sense, since list2.Contains is expecting the same type as list2. However, the list types are different. I want only to select based on column comparisons.
View 3 RepliesLINQ Returning List Of Anonymous Types
Mar 11, 2009Any best approach to what I'm trying to achieve (linq to sql, returning list of data to show in a grid/list etc etc)... Its complaining about anonymous type conversion, and from what I'm reading, thats not elegant way of doing it.
Public Function GetHistory(ByVal historyId As Integer) As List(Of ?????????)
Using dc As New myDataContext(Application.GetConnection)
Return (From t In dc.ActionTypes, a In t.MyTable Where a.HistoryID = historyId Select a.ActionOn, a.ActionBy, t.Description, a.ImpactedItem, a.ActionDescription).ToList
End Using
End Function
C# - From A List<object> , ToString() Them Just When They Are Primitive Types Or Have This Method Overridden??
Feb 15, 2011Given a list of objects, I'd like to print a string version of them just in case the object.ToString() result is a relevant string.By that I mean I don't want to get things like:
obj.ToString() -> System.Collections.Generic.List`1[MyLib.Dude]
obj.ToString() -> System.Collections.Generic.Dictionary`2[System.Int32,System.DateTime]
obj.ToString() -> System.Byte[]
But I want to get things like:
obj.ToString() -> Hi
obj.ToString() -> 129847.123
obj.ToString() -> Id = 123
What should be the best way to implement this in a method:
Public Sub PrintInterestingStuffOnly(ByVal coolList as Ilist(Of Object))
For Each obj in coolList
'insert solution here
[code].....
C# :: Determining Object Equivalence For Value Types, Reference Types And ILists?
Nov 1, 2009I have a class with a Property called 'Value' which is of type Object.Value can be of any type, a structure, a class, an array, IList etc.My problem is with the setter and determining whether the value has changed or not.This is simple enough for value types, but reference types and lists present a problem.For a class, would you assume that the Equals method has been implemented correctly, or just assume that the value has changed every time the setter is called?If I did assume it's changed, then perhaps I should assume it for value types as well, so that the behaviour is consistent.
View 2 RepliesCannot Start A Process Because A Filename Has Not Been Provided
Dec 21, 2010Cannot start a process because a filename has not been provided.
Private Sub Backup_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdBackup.Click
Process.Start(adbFind.adbLocation.Text, "pull /data/local/bootanimation.zip C:Backup.zip")
End Sub
It was working fine now this is just started to appear, i have went back as far as i can where i only have that line of code and it still appears.
Cannot Start Process Because A File Name Has Not Been Provided
Jul 14, 2008When I ran the application, I am getting error as Cannot start process because a file name has not been provided. [code]
View 3 RepliesCreate Some Effects For The Pictures Provided By The User?
Mar 14, 2011I am working on a project called "My Digital Diary" and I need to create some effects for the pictures provided by the user.
View 3 RepliesException Row Provided Already Belongs To A DataGridView Control?
Feb 14, 2012I am getting following exception while coping the row in same datagrid view control System.InvalidOperationException was unhandled
[Code]...
Scripting Error - Using An Application Provided By A Third Party ?
Jul 31, 2010We are using an application provided by a third party. We applied their hotfix and are now receiving the error below. So far they haven't been able to provide us with a solution/answer as to why this is happening and how to fix it. They say we are the first customers with this problem.
Compilation Error Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.
Compiler Error Message: BC30560: 'FileSystemObject' is ambiguous in the namespace 'Scripting'.
Source Error:
CODE:
Webbrowser - Snapshot Of Website With Provided URL Address?
Mar 11, 2010i have seen google chrome, whenever you open a new tab, it will show you the last 8 pages that you have visited. I want to do a similar thing, except i have a vb.net code behind the .aspx file, which shall give me a list of URL's called form the database. When the page is loaded the URL's are displayed on it. what i need my code to do is to pick up these URL's, on the background open a web browser, take a snapshot of it and save it, and display it on the screen. dont recommend IFrames cause I need a snapshot and not an actual running site in the small snapshot.
View 2 RepliesEngine Is No Longer Provided With AutoCAD OEM Installation Media
Nov 26, 2010I have been using Visual Basic for Applications (VBA) in MS Office packages and in Auto CAD. The Visual Basic for Applications (VBA) engine is no longer provided with AutoCAD OEM installation media, but it supports VB.net.I am bit confused of Visual Basic 2010 and VB.net Which version shall I go for to learn VB.net.
View 2 RepliesApplication Provided By A Third Party Facing A Scripting Error?
Jul 31, 2010We are using an application provided by a third party. We applied their hotfix and are now receiving the error below. So far they haven't been able to provide us with a solution/answer as to why this is happening and how to fix it. They say we are the first customers with this problem.
I thought maybe the .net forum here will be able to guide me on how to solve the scripting error.
[code]...
Asp.net - Export Gridview To Excel In .Net Not Taking Provided Filename?
Jun 10, 2011I have the following code to export a gridview to excel and the export works just fine. The issue is that no mater what I do it names the file the name of the webform .xls instead of the name I am providing in the code (Team.xls).
Protected Sub btnExcel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExcell.Click
Dim sw As New StringWriter()
Dim hw As New System.Web.UI.HtmlTextWriter(sw)
Dim frm As HtmlForm = New HtmlForm()
[code]....
Building A Connectship (Shipping Service Provided By UPS) Project In VB 10?
May 25, 2012Currently I am building a Connectship (Shipping Service Provided by UPS) project in VB 10. This is my first project in 10, in the past I have always used 2003. We decided to upgrade due to the connect ship API(.dll) wasn't compatible with 2003.
My current problem is as follows:I've built a program that uses ADOBD, some XML httprequests and a little bit of integration with there API they have. I also built it to use .net Framework 4.0. I can run the project just fine on the machine I built it on (XP SP3), but when I go to run it on the other machine, it acts like it runs but just doesn't do nothing. Basically just starts and stops.. The machine is not the same model as mine, but has all the updates (SP3) & the .net 4.0 framework on it. I've also tried installing the software package that comes with Connectship on the machine, this is how the .dll work but it still doesn't bring anything up so I don't think it's that messing it up.I was also wondering, to run VS 10 projects you should at least have SP3 correct or could you use SP1 also in XP?
Drag And Drop - Row Provided Already Belongs To DataGridView Control
May 25, 2009For Each DGR As DataGridViewRow In dgvJobs.SelectedRows
' Added to stop error occuring when destination dgv columns do not exist
If dgvProject.ColumnCount = 0 Then
For Each ColumnHeader As DataGridViewColumn In dgvJobs.Columns
Dim name As String = ColumnHeader.Name
[Code] .....
I'm making a form where I have two datagridviews. The first dgv is databound to a database. The second dgv is not databound. I want to allow users to drag rows from dgv1 and drop them on dgv2. At the moment I have managed to get it to the point where I can drag from dgv1 to dgv2 but the result is an empty row being added. When I try adding a row without using .Clone I get this error "Row provided already belongs to a DataGridView control."
Compare Two Types In Dictionary Of Types .net?
Jun 23, 2012I need to compare two dictionary values if the types stored are equal, this is what i have
if gettype(Args(key)) = gettype(argtypes(key)) then
'' do something
end if
[Code]....
Create Commands That Allow A Group Of Adjustable Voltages To Be Provided Outside The Computer?
May 20, 2011How do I create commands that allow a group of adjustable voltages to be provided outside the computer, via the usb, serial or paralell ports, etc to control devices connected to the computer?
As a former electronic technician and developer, I have several useful projects I would like to develop.For example, I just received a celestron digital microcope and I am interested in developing a speciman stage the microscope can be placed in which provides a from 4 to 8 adjustable led's located above the speciman and more below the speciman so the lighting on the specimen can be adjusted in a variety of ways so hidden features of the specimen will be revealed when viewed from the microscope.
how to send the commandsf rom the computer to outside devies for further processing is my primary concern into a port to accept these voltage commands since I am behind on current technical advances in the electronic field.
Selecting Information From Particular Column Based On Key (or Keyword) Provided By User
Jul 23, 2009i m working on a project on vb.net with access database...and i need a code for separating the information from my complete package by following some kind of search,
1. for example if we type a word "publish" in a textbox and then click on a button...then it should display all the rows and columns containing the word "publish" in the grid view.
2.i also need a code for selecting the information from a particular column based on the key(or keyword) provided by the user
Consuming Web Services - Going From A Manual Method To An Automatic One Using Third Party Provided WSDL
Feb 24, 2009We have a small VB.net application that basically pulls information from our dBase and then exports this information to an .xls file. From this .xls file, in house agents then manually update a third party listing service (which maintains our current inventory) with the information contained within. The information is very basic, consisting of, for ease of discussion, a 'Part Number', a 'Description' and a 'Quantity On Hand.'
Normally we update this information once a week, but, a newly revised contract with this listing service now requires a daily update to maintain our 'platinum' vendor status.The problem is that it can take quite some time to manually update this information. an automated process is in dire need. And I have finished most of the ground-work and coding - up to a point. Hence the question, and hence where I get stuck.The listing service has provided us with the following WSDL's: One for Increasing our Inventory, one for Decreasing our inventory, one for Adding inventory and one for Removing Inventory.
Up to this point, I have re-programmed a Stored Procedure that was generating the exported information. this SP now does some internal math to figure out if a transaction result occurring on 'yesterday' was an 'Increase', a 'Decrease', an 'Add' or a 'Remove.' These results are then added to a result table under a newly created column named 'SERVICE.' This new information is then pulled from the dBase with vb.net and imported into a Data Table for analysis.
With this Data Table, I can now loop through each row, looking in the column 'SERVICE' and depending on the information contained in that cell, call the appropriate web service.
[Code]...
I realize that this has become quite long winded, mostly because on any given day I have 25 FF tabs open and none of them agreeing with each other. To add another wrinkle; the WSDL's in question use a lot of complex types within complex types with, you guessed it, other complex types entwined.