I make a two vb project with a same framework 4.0 in one solution then I call the form of project 1 from project 2 then it is worked! But the problem is if I changed the framework of project 1 to framework 2.0 and the project 2 is still framework 4.0 . . . there's error occurred.
View 1 RepliesI have two separate projects and I need to bundle them together as a single solution, how do I? I am using VB2008 in VS2008.
View 4 RepliesI have two unrelated databases and I need to pass data back and forth between them. Right now I have created two separate entity models - one for each database - but this is causing issues in my code b/c I have to do a Using nameofcontext / End Using and when I try to then use some of the results from the first section of the code in a second Using nameofcontext / End Using it doesn't like it - b/c I've closed the connection to the first database!
View 1 RepliesI've developed a couple of different stand-alone projects, myRibbonRTF and myRibbonCalendar and have them functioning well. I want to tie these together with other projects in a single solution called myMain. When I add these projects to the solution, their forms are not accessible in myMain (e.g. myRibbonRTF.frmMain.Show()). I've searched high and low for the last week trying to solve this and the only nearby solution is to turn the other projects into .dlls and access them in myMain that way.
View 7 RepliesIn vb.net 2.0 is it possible to declare a variable globally so that it is visible to all projects of a single solution?
View 1 RepliesI wrote very simple code to send emails. I wish that end users who do not have .NetFramework installed, could also install this application without installing Net Framework.
View 2 RepliesI need to grab just one row, and output its name and details properties to a sidebox on my page.So far I have come up with this, which is not working and giving cast errors between the entity and the list of.
Public Shared Function GetOneRow() As String
Dim db As New Model.Entities
Dim rowCount As Integer = (From t In db.Table Select t).Count
[code]....
I am work on VB.net 2003 Framework 1.1 for last 3.5 years in windows Application.We are currently migrating to VB.net 2008 framework 3.5, but i don't know about the features which related to ADO.net and which is important to performance. I know linq to SQL but our architecture is made in .net 2003 so we should follow this.Any features which is very important to enhance the performance?
View 2 RepliesTill yesterday I was working fine with my Project.I din install anything new, am not trying to open my solution file with a different version also.Today when i tried opening my solution, it was saying
"The Selected Fiel is not a valid solution file"
"The Operation could not be completed.Unspecified Error"
Microsoft Visual Studio Solution File, Format Version 10.00
# Visual Studio 2008
Project("{54435603-DBB4-11D2-8724-00A0C9A8B90C}") = "??E", "..Setup2Setup2.vdproj", "{600F8FB2-B9A9-4138-B7E7-FE7B39815CC1}"
EndProject[code].....
Say I have a code with 3 methods that do some pretty intensive work. Would executing these methods on 3 seperate threads be faster then executing them one after the other on a single core cpu? And what if it's a dual core or HT?
View 8 RepliesI am trying to make a list, separated by a comma, of entries from a single column in a SQL database. I have been spending the last several days searching for a way to do this, but every thing I found either didn't work, or wasn't exactly what I was looking for.
The query will pull all the email address that are not null. What I need to know is how to take the result of that query and make it look like this:
email0@address.com, email1@address.com, email2@address.com, etc, etc, ...
I feel like I should know this, but for the life of me, I can't remember nor can I find it in any of the textbooks I have.
I am using Visual Basic 2010 and SQL Server 2005. I also have access to Visual Basic 2005 if needed.
I use SqlParameters when executing database statements. I know that I can replace a single quote with two single quotes... but in the past SqlParameters took care of this for me. I have two projects.. in one, the SqlParameter does this and it handles single quotes fine, in another, it does not and I'm at a loss why (I even copied and pasted the code):
[Code]...
I am trying to use the DGV to view various properties from a variety of different class instances. Is it possible to bind each cell individually?
View 9 RepliesI am trying to update a row or a single cell in ms access through vb.net. But when i update the text box named NRIC, say for example i want to update "s4522147B" to "tr4521856C" and mean while leaving the other fields the same.
But the thing is when i make the changes in nric.text (textbox), the dataset actually updates the whole column in the table instead of the selected textbox.
Below is my code for the update part
[Code].....
I have a solution that I wish to upgrade from Vb.net framework 1.1 to framework 4.0. The solution consists of a number of projects, all but one of which compile to dll's. The master project compiles to a executable which provides a menuing system which dynamically loads the dll's and connects to entry points.
The projects contain normal classes, numbers of forms and also controls, which are either usercontrols or are inherited extensions of standard windows controls.There are a number of third party components (eg reporting and grid controls from Component One, Ribbon control from DevExpress etc).
[Code]...
How come software created in an older framework version won't run on a newer framework version? Actually whenever i try to run some old specific software having .net 3.5 framework on my PC they show they needs .net framwork 1.1 . What a bad thing?My newer version of Photoshop ans Ms office open all lower version files.
View 6 RepliesI work for a small company and we are planning to build our own framework using .net . For example if a dropdown is placed in the form and set the custom property to Users, then the users list from db from has to populate. The developer will drag and drop the custom control and set the connection string in config file. Other things are to be managed by the framework.
View 4 RepliesI have a few problems i need to solve. Firstly, I am looking for a piece of code i can use to display a picture from a bank of pictures. It will work on the basis of generating a random number and loading a picture that corresponds to that number.
i.e. Dim RandNumber As Integer
Dim RandClass As New Random
RandNumber = RandClass.next(1, 10)
If RandNumber = 1 Then
Picturebox1.image = picture1
[Code]...
Secondly, can I then use subsequent picture boxes to display pictures from the same bank of images, without displaying the same image? Finally, I then need to be able to click the picture or a button beneath the picture to select it as an answer to a question and then the whole process starts again.
c# - Are Microsoft Entity Framework and ADO.NET Entity Framework (.edmx) the same?
View 7 RepliesI have a .Net solution with 5 projects in c# and one in visual basic. I want to know whether there would be a gain of performance to convert my visual basic project to C# in the day to day while I compile my solution.
View 3 RepliesIm trying to implement this code: url... and want to add it to my existing VB.NET solution.But when I look at the source code I see a code behind file for global.asax (Global.asax.cs) file with a namespace defined in it?!?Now in my existing VB.NET solution I DONT have a code behind file. Here's what my global.asax looks like: [code]When I add the namespace code as in the sample code I get: 'Namespace' statements can occur only at file or namespace level.How can I implement the sample code correctly in my current solution?
View 1 RepliesIm working with a CD722UN Customer Display for our POS application. it comes with a USB2.0 connection and a installation package containing a driver etc. now, for my application. how should i do when i want to access this driver? at the moment i'm using the "CD722UN application"s .dll path but that can wary from clients OS etc. [Code] my first thought was to first check if there was a device installed in the device manager and somehow use the driver from there? [Code] what is the best solution?
View 1 RepliesI have a solution, Winforms, mainly composed from VB.NET projects (Wiforms, Constrols and business classes).
How, I added to it a WPF project, but wrote it in C#. Actually, every time I make a modification in the WPF C# project, I need to (re)build the C#WPF project. Is there a option to make it work like other (VB.NET) projects (accept and "see" the changes without rebuilding the C# project)?
An example:When I reference project "R.VB" in project "M.VB", I add a method "DoTest" in the "R.VB" and use that method in "M.VB" without compile errors.
If I add "DoTest" in the C# WPF Control and try to use it in "M.VB" project, I recieve a compile error "DoTest" is not a member od "R.C#Class".
I have 2 projects (P1 and P2) in a VB2008 solution, with each project compiled to a separate EXE.P2.exe is started via a button on P1 and while P2 runs, certain aspects of P1 are disabled. When P2 closes, P1 needs to reactivate those disabled aspects.Question: How do I communicate with P1 from P2, seeing that they are 2 separate EXE files, even though part of the same solution?
View 2 RepliesI am using 2 forms in a solution the first is the application itself (MainForm) while the second is for the settings (SettingsForm) My first question is how to let the (SettingsForm) to Inherits Or Share the Declarations in the (MainForm)? And how do I it Save Load , the settings if changed when the application is closed Some applications use *.ini files to save it's settings but I don't know how to load it back I may save it with this code:
[Code]...
I may save a settings if there a Check box by "1" or "0" where "1" means Checked while "0" means UnChecked
Also, if there is a radio button I may set the first radio as "1" second as "2" third as "3" The problem is with Loading the settings Here is the Questions once more: 1- How to let the (SettingsForm) to inharets Or Share the Declarations in the (MainForm)? 2- How do I it Save , Load the settings when the application is closed?
I need to quickly fill a datagridview but there are over 10,000 records.What is the best paging solution to use in cases like these ? Should I use a backgroundworker ?
View 4 Repliesi have this project in TFS, and someone else from another computer changed the solution file's name. Now when i try to open it, i cant. It gives ne this error -"This project (xxx.sln) cannot be opened from source control because it was created by a version of Microsoft Visual Studio that is incompatible with this one.If this is the case, you may be able to open it from source control using that version of Microsoft Visual Studio, and then use Microsoft Visual Studio to open the local copy."
I dont have a local copy cause i deleted it. Reason being i wanted to get eveything new from the server. How can i open this project now?
I've written a bare-bones ap in Visual Studio 2010, Express version. It does what I need and several others are using it successfully. I'd like to add features to it, but I don't want to foreclose the ability to make corrections to the present version.
How do I make a fork in the application for this purpose? Google has been no help in this case, and I've tried several incarnations of copy and change names etc etc.
.NET solution does not contain a Main function
View 2 RepliesEvery Visual Basic application must contain a procedure called Main.
I Didn't find such a method in my solution..
[Code]...
My problem is, in fact, I try to follow a recommendation that says: Clipboard.GetDataObject Always Returns null? If you find you're always getting null from GetDataObject, try adding [STAThread] before your static void Main().So, me, if I don't find Main()... I can't follow that recommendation in VB.NET...