I'm learning MVVM using the sample created by Josh Smith and I wanted to add a functionality of update.Two problems arise (not addressed in the referred question):What is the best and light way to create a workspace from another workspace?
View 2 RepliesI Want to develop a software like Yed.i just don know where to start.how we can create a workspace where i can drag and drop icons and create connection etc etc.
View 6 Replieslooking at some applications like excel and other ms office programs got me wondering: how do you create an area where windows open in but don't appear as separate windows on the windows bar? Basically my question is, is there any way to create a window workspace where new windows are opened but don't appear as an entire new window?
View 4 RepliesDim workspace(1 To 4) As Long ' (1)=left (2)=top (3)=right (4)=bottom SystemParametersInfo &H30, 0, workspace(1), 0 ' &h30 = get workspace size Dim X As Long, Y As Long, w As Long, h As Long
X = workspace(1) * Screen.TwipsPerPixelX
Y = workspace(2) * Screen.TwipsPerPixelY
w = workspace(3) * Screen.TwipsPerPixelX - X
h = workspace(4) * Screen.TwipsPerPixelY - Y
Move X + 0.1 * w, Y + 0.1 * h, 0.8 * w, 0.8 * h ' 10% margins
I have TFS url, and I have source File location, but I don't have Workspace path. How to Check out file without workspace, or how to find workspace for some file? I already make solution for checkout file in TFS, but in some cases I don't have workspace path or name.
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How to make main form large: entire workspace less 10% margins on each side using vb.net.
View 2 Replieshow can you create find & find next (using tooltip menu) create in vb.net for datagridview value.
View 1 RepliesI have an object that is defined as a global variable based on custom class. Within that class I have an event that gets fired a certain intervals. These events are fired on the same thread as where the object is declared. How do I create a global object, but have the events within that object fire on a separate thread?
View 2 RepliesI am trying to write an VBA application in Excel 2010 using "Microsoft Soap Toolkit 3.0" on 64 bit Windows 7 to consume an web service. But i got an error while initializing an object of SoapClient30.
Error message is :: Runtime error '429' :ActiveX component can't create object.
I was create Access database with Access 2003. I create VB project with Visual Studio 2005 Standard With connection wizzard I create coonect with this Access database, select all tablesI see this database inside Data sources and inside Server explorer Test connection is OK When I drag and drop table from Data sources, Wizzard don't create DataGridView, DataSourceBinding etc .. and I see popup window with mesage: Object reference not set to an instance of an object and then "game over"
View 2 RepliesAfter reading all the examples for list of T exists and Find and find first, none show how to handle multi-property objects. Below is bare bones example maybe someone could flesh out to show how this should be done.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim DatePriceList As New List(Of DateAndPrice)
DatePriceList.Add(New DateAndPrice(Date.Parse("1/1/2000"), 10.12))
DatePriceList.Add(New DateAndPrice(Date.Parse("1/2/2000"), 11.12))
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Under component services, a COM+ component is used by the company, right-clicking it and choosing 'Activation' tab will show the 'constructor string' that is used for DB server connection by all applications. How can I access it the simplest way possible?
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I have a class library that contains a number of classes. I would like to dynamically create an instance of one of these classes, set its properties, and call a method.
Example:
Public Interface IExample
Sub DoSomething()
End Interface
Public Class ExampleClass
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i have drawn on a e.graphics object and now want to transfer the drawn stuff onto a bitmap object how can i do this?
View 2 RepliesI am developing an IT Asset Tracking application using VB 2005 and SQL Server 2005 Express edition. Will I need to create classes to represent objects such as Computers, Printers, Scanners/Faxes, Contracts, Purchase Orders etc or are there any other approaches.For example, if I am correct, I will have a class called Computer and its properties will include Make,Model,CPU,Hard Disk,Memory etc. Is this the right approach.
Computers can be split up into Desktop PC's, Servers and Notebooks. Would I have to create separate classes for these as well or would they be ok under the Computer class.Once I create an object from the class, how can I use the object to interact with the SQL db.I am a beginner to VB.NET 2005 therefore I am slowly getting to grips with OOP.
I want to create a class is it where I can do...
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How do I do this? Do i create a class and create a instance of CarData? but how do I add Color and Year etc to it?
I am constantly receiving back objects and it would be very useful be able to print out all of their properties. Is there a way in VB to get all the properties of an object and print them out (to console)?
View 3 RepliesI have an object (myObject) and I'm trying to find everything that is listening to any event of that object.
The following code seems to work as expected for listeners created with the AddHandler syntax; but does not report listeners created using the 'Handles' syntax.[code]...
Is there a way that I can parse through the objects of an application and determine if each one is TypeOf a particular form object? I have found no clear way getting a reference to forms that have already been opened. Complicating this further, it appears that not all Visual Basic commands are available to me when coding for an old PocketPC device.
View 1 RepliesI am attempting to create a new mobile app using VB in visual studio 2008. I select "File" "New Project". Select "Smart Device" in new project window. Select the "Smart Device Project" from templates. Select ".NET Framework 3.5". Select "OK" and get the dreaded "object reference not set to an instance of an object"
View 1 RepliesI started making a game in VB.NET, but I am stuck on the pathfinder. There are round objects. I want to know how to find a path get one object from one point to another (or at least as close as possible) without any collisions.
View 2 RepliesThis Questions has properties QuestionID and QuestionAnswer. While iterating through this List of Question in foreach, I have to find .QuestionID = 12. If I find .QuestionID = 12 then I have to immediately assign a value to .QuestionAnswer = "SomeText" of .QuestionID = 14.
I don't want iterate again inside .QuestionId = 12' to find.QuestionID = 14` again.
Is there any way I can go directly to .QuestionID = 14 using LINQ?[code]...
There a dictionary object that gets loaded with the following key values:
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In most situations, life is good and all the individual key values are needed/unique. But in certain situations, the keys with letters behind them (ie...189a, 189b, 189c) all mean the same thing (ie...189). So I need a way to see if a key value exists (like the containskey method) for only the first part of the key and then return true.
I am using the IndexOf function of the string class to find a specific instance of a string. And based on that I have a logic to do something. Below is the example of what I am doing. The code is in production and is working fine. But for some instance I am getting an "Object reference not set error". Yeah its intermittent.The requestXML is a string of xml data passed in as a paramter to a subroutine. I am fetching the xml string as a form post in a request object. The only thing I could think of getting this kind of error is when the requestXML string varia
requestXml = Request("requestXML")
SubmitRequest(requestXml)
Private
Sub SubmitRequest(ByVal requestXml
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Is it possible to find a complete object in list of objects?
how to find x in list1 if it exists without comparing a single property like ID ?
Say I have a list and I have an object. I want to find the index of that object in the list.
View 1 RepliesI finally got the code I needed for inserting data to an Access database and it's working fine. Now I'm applying the same code to a new Button object and I'm getting that ISAM error thing.
Here's the code I'm using and the error I'm getting:
Dim saveConn As New OleDbConnection _
("Provider=Microsoft.Jet.oledb.4.0;Datasource=c:usersEuclides MediciDocumentsVisual Studio 2005ProjectsSistema de Inventario 2007Sistema de Inventario 2007Sistema_de_Inventario.mdb")
Dim sql As String = String.Empty
Dim clear As String = ""
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I'm trying to import data from an exel sheet to a data grid but I keep on getting the following error "The Microsoft Jet database engine could not find the object"
Here is my code
Imports System
Imports System.Data
Imports System.Data.OleDb
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This starts with an object being added to a collection with: CommonArgs.Add(ObjName, Me)
ObjName is a string, call it "Obj1". Me is an instance of a class inheriting from UserControl. Call it "Class1".
Now, to check the value assigned to Obj1, the vendor has the
Dim Obj As Object = CommonArgs(ObjName)
Dim Info As System.Reflection.FieldInfo = Obj.GetType().GetField(ObjName, System.Reflection.BindingFlags.Public Or System.Reflection.BindingFlags.Instance Or System.Reflection.BindingFlags.IgnoreCase)
Obj is the Class1 object added to CommonArgs.
When I run this in my test app, Info is Nothing-but when I run it in the vendor's app Info is an Enumerated type. Why?
I've found a little more info, but it's still a mystery to me-and so far it appears to be a mystery to everybody else, too.
First, I noticed that I didn't mention that the Collection is a Hashtable. I don't know if that would make a difference, but it is something I forgot to mention.
Second, there's a 'regular' variable named ObjName that contains the value being returned by Info. My understanding is that there's no connection between these, e.g. Dim X as Integer = 1 doesn't change the type or value of the object of CommonArgs("X"). But that's what appears to be happening.
Any suggestion?
Basically, I've got this plugin-based application I've used all the time in VS2008 flawlessly. In my current project (VS2010 by the way) I wrote a plugin for the application and whenever I try to use an instance of a particular class (in an external dll) from my plugin, I get an error.
I tried watching the instance and I got the message:
"Cannot find the method on the object instance."
in the watch window. This has never happened before! I also found that some of the extension methods in the plugin does not work.