Building A Database Control Layer DLL For Project?
Jun 10, 2011
I'm building a database control layer DLL for my project.HelpDB is the project.HDB is the class name.I've written a few methods for connecting to the db, querying, and the usual.I've recently included a public class HDB_ParamValue in HDB to handle query parameters.
[Code]...
Note 1: I'm moving from VB6, so you'll appreciate that I have little experience with this real OOP. If there is a link or article you can recommend that might answer this, recommend away!Note 2: I'm not concerned about databases and parameters per se, but more the _concept_ of class in a class (or class of a class).
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Feb 7, 2011
I am generally following this tutorial, the main differences being I'm using 2008 R2 Express and Windows Forms, he is using 2005 & ASP.NET Web Site:'m building a minimalist Windows Form project for learning purposes. So I'm using a 1-table database with 2 columns, ContactID & Name. I added a dataset file, 'ContactsDataSet.xsd' to my project and added a single minimalist table adapter with just a fill() & getdata() method.Then I added a DataGridView control and connected it to the ContactsDataSet to confirm it was working and that worked fine. I ran it and it filled up with data as expected. Everything up to this point was auto-generated code.
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Nov 30, 2010
I am working in VB.NET defining my own classes. I have 5 classes, Policy, Coverage, CoverageCollection, Layer, and LayerCollection. Policy has a bunch of data items, one of which is of type CoverageCollection. Coverage has a bunch of data items, one of which is of type LayerCollection.
Policy
private id as Long
private name as String[code].....
Then I do like "dim p as Policy". So, iIn order to get to properties on a Layer, I reference it like p.cov(0).lyr(0).face. What I am trying to do is add a readonly property to Layer that is calculated using some Layer information but also using something from Coverage (or even Policy). I can take this in as a parameter to the property, but I think there should be a way to get at Coverage/Policy information since I am "under" it already. Is there a way to do this?
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Oct 15, 2011
I have a problem with building a project. When I build a project and when I create .exe file, I cannot run it on other computers.There is an error: "The application failed to initialize properly (0x0000135). Click OK to terminate the application.".ca i have any chance to solve this error without installing framework 3.5
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Jul 20, 2009
I have a problem with building a project. When I build a project and when I create .exe file, I cannot run it on other computers. There is an error: "The application failed to initialize properly (0x0000135). Click OK to terminate the application.". When I install .NET framework on the computer, than there is no this error. Is there any chance to create a file that will run on the other computers without installing the .NET framework?
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Nov 5, 2009
how do I check if a project is up-to-date?
I'm basically trying to programmatically build each project in a list but only if they have changed. So does anyone know of a way (using EnvDTE maybe) to check if a project changed and therefore needs to compile?
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Jun 5, 2009
I have written a program in VB.NET 2008 Express that references a .NET managed dll. I simply added a reference to the dll to the project. I then 'Imports' the dll at the beginning of the program and then can use it. Everything works fine when I am running the program in debug mode (and it uses the dll as intended), but as soon as I go to build the project I get an errors that it "Could not reslove this reference" and "Namespace of type specifier in the Imports 'ModbusTCP' doesn't contain any public member or cannot be found." The dll is located in a different location on my hard drive to the project location, but this was referenced when I 'added reference'.
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Jun 21, 2009
When i am creating a setup project and building it then i am getting a setup file using which if i install then it is getting installed to single user only i want the setup to build run for every user in that system and the users can access it.
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Mar 9, 2012
Both projects are set to build in release modeBoth projects are in the same solutionThe solution is set to build in releaseBoth projects output to a Release folder in bin / objEverything seems to be okay except for one thing.When inspecting the files with a tool such asI tracked this down to a setting in the Advnced Compiler Options for the pdb files.If the debug info output for VB is set to anything other than none - then the project builds in debug mode (keep in mind it still outputs to the release folder).
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Jun 14, 2010
When ever i publish the project, i get a bunch of deployment files and a setup file. Even after running the set up there is no .exe file.Is this just VB .Net way of opening the file now? Do i even need to use the installer? My program uses very basic math with list's and datagrid views.
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Aug 22, 2009
Well i finally finished my Maths Quiz project made using VB. Now, all i have to do is create a wizard that installs the program on the users pc.What i did was clicked bulild--->publish build then follow the simple instructions:location--->loadfromacd/dvd--->finish although when i went to install it, it didnt create a desktop icon although it creates it in the start menu as well as so thats good but it doesnt create a shortcut to the desktop is there anyway i can make it install a desktop icon when installing?
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Aug 12, 2010
What i am looking is how to create a layer between the application and database? I need to create an xml files where the application will fetches the data and updates the data into local cache. Later from the xml files the data has to be transferred to database. Here the application need to work even when the application is in offline and database is not been connected.
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May 25, 2012
Currently 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?
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Aug 11, 2010
What actually is required to consider something installed on a machine. What happens in the background? I know VB offers an installer but Im trying to build my own from scratch. What do I need to do to accomplish this?
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Nov 16, 2011
Can we write all the control events in a seperate class file in different layer rather than in code-behind of web-page ?
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Mar 4, 2011
I've always used this approach while implementing data layer DLL for web application:
1) put datasets into the dll project
2) use a helper class with a method like this:
public shared sub settCnnStr(strconnhere as string)
My.Settings.Item("connectionString") = strconnhere
end sub
3) when I need to use the dll I call a method like this (usually into global.asax):
xxxxxxx.helper.setCnnStr("yyyyyyyyyyyyyy")
This method always worked for me nicely but I'd like to know if this method could have serious drawback or if there's a better solution.
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Apr 14, 2010
While implementing this article,i cant understand what they try to mean by this:Still in the Code Window, change the line that reads:Inherits System.Windows.Forms.UserControl So that it reads:Inherits System.Windows.Forms.Button..if i change this line of the designer form: Inherits System.Windows.Forms.UserControl to this: Inherits System.Windows.Forms.Button...then when i return to the designer,i am getting this error: The designer cannot process the code at line 22: Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!) The code within the method 'Initialize Component' is generated by the designer and should not be manually modified. Please remove any changes and try opening the designer again.
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Jul 26, 2009
I am trying to prototype an application with a data layer on my computer at home using Visual Basic 2008 express edition with SQL Server Compact 3.5. My production situation at work is SQL Server 2000 and I am using Visual Basic 2005 professional for development.I am trying to write the code to create a seperate data layer. Here is my code. First the data layer:
Imports
System.Data
Imports[code].....
My Problem is that the data does not show up in the text boxes.
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May 6, 2009
I have a project that I have created, it something like a contact database.It is complete with its own sql server database, and controls and forms.I kinda of understand that I can include this project into another project.This is the tricky part,Can I include my contact project into another project and add more items to the database and forms in a new project?What I'm after is like using classes.My contact database would be like the base class, and the new project would be adding more features to that project.
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Sep 3, 2009
I am trying to write simple database application and try to understand ADO.net as well.say I have 2 table
1. table emp with the following field (empId, empName, empPhone, salary, deptId)
2. table dept with the following field (deptId, deptName, deptLocation, deptManager)
emp table is link to dept table via deptId.so I try to build a form with 2 data grids the top will be dept data grid and below it is emp data grid.I try to do this with out using the wizard so I know the flow and understand how to link together step by step.
in the form load section:
dim conn as new system.data.sqlclient.sqlconnection(connectionString)
dim daEmp as system.data.sqlclient.sqldataadapter
dim daDept as system.data.sqlclient.sqldataadapter
[code]....
I am kind of stuck on what to do next, I think the next step is to creat dataview from my understanding before mapping it to the datagrid, but on data grid documentation it say it can only filter datarow, it can't filter data column on the dataview.
I would like to be able to display deptName, deptLocation, no the whole column on the table to data grid, and when user select a record from dept datagrid then the employee info (empname, empphone, empsalary) is display on the second grid (again not the whole emp column table).
the user can update, add or delete emp record from employee data grid by clicing on update button, on update button callback routine I need to put something like.
daEmp.update()
from what my understanding then I need to create update, insert and delete routine and attach it to daEmp so the data grid know how to sync with sql server, so when the user say add new record since the data grid doesn't have all the field display, i.e deptId column is not on data grid, how the table know what the dept id would be? I'd like to learn without the wizard 1st since once I know how everything is link then it is easier to debug since the wizard create lots of file and it's everywhere which make it very hard to understand what is happening for someone new to vb & ado.
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Dec 26, 2011
building a ASP.NET profile wrapper to use with an ObjectDataSource control. I would like to have the serialized profile data that I have defined in web.config be accessible via a FormView control within a user control. I'd like the users to be able to view and update their profile data. I have part of the code but am lacking the experience to complete it. I'm using a aspx page with some text boxes and having users update via a simple form now but I need something more reusable and efficient, not to mention moving the logic to a middle tier. I see that the ObjectDataSource control has some intrinsic ability to view profile common data but that seems to be limited.
Namespace SiteMemberShip
Public Class ProfileWrapper
Private FirstName As String
Private MiddleName As String
[code]....
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Feb 4, 2009
I'm building a web browser using the WebBrowser control in a normal vb form. I would like to add an option where the user can view the source code for the page like in internet explorer.
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Jan 22, 2012
If we say blue is the default colour of the Backcolor property I understand it as if you don't specify a colour for Backcolor blue will be its colour. But I could not make sense of default property of a class in the context of building a custom user control. After calling an instance of a class we have to either call one of its members or assign an other object for it. Therefore why should there be a default property?
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Jun 21, 2010
In the VB IDE you control the "layer" any given panel is at by using Bring to Front, Send to Back.
But lets say sometimes I want one in front, and sometimes I want a different one in front.
Is there any way, programatically, to do this?
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Dec 26, 2009
Im building a program that's linked to a ms access database. the function i use to update a row... In order to save a lot of typing i inserted a for loop that uses a directcast function. i did this because i have numerous text boxes that i name tb1, tb2, tb3, tb4...etc and they each correlate with row 1, row 2, row 3, row 4...etc in the database.[code].....
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Nov 8, 2005
I got "Unrecoverable build error" when building setup project.I try the solution in [URL].. but did not work out.
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May 1, 2010
I'm trying to set form size longer, but after building the project form resizing.
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Nov 17, 2010
I began setting up a TeamCity server a couple days ago for use in automated testing and CI. We mainly do VB.net web apps and up until now, it had been checking out things and building just fine.
A problem came up when I tried to add actual deployment into the mix. I saw this article: [URL]
referenced all over the place as a good guide, so I followed the steps relating to setting up a Web Deployment project and rigging TeamCity to run it. Basically, it recommends setting up a new build configuration in VS2010 called "Deployment" which builds the Web Deployment project, then creating a build configuration in TC that targets it.
The issue is that the web deployment project won't compile when run under TeamCity. The regular build works just fine, but if I set MSBuild to use the build configuration that includes the Web Deployment project, it crashes halfway through and gives an error about attempting to load the System.Data.OracleClient assembly in an incorrect format. I assume this means a 32-bit/64-bit error, especially since my development machine is a 32-bit box, and the build server is 64, but I don't know why this is happening, especially when the regular build works, and nothing in my project involves using an Oracle database.
I saw in the log that there's a warning about missing reference assemblies for the 4.0 framework, so I headed off to the MS website and downloaded the SDK, but that didn't change anything. At this point, I'm stuck, and I didn't see anything already here on Stack Overflow that looked quite like this. I'll attach the log below. Have I missed something simple?
[10:46:05]: Project "MyTools.sln.teamcity.patch.tcprojx" (TeamCity_Generated_Build target(s)):
[10:46:05]: [Project "MyTools.sln.teamcity.patch.tcprojx" (TeamCity_Generated_Build target(s)):] Project "MyTools.sln" (Rebuild target(s)):
[CODE]...
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Dec 11, 2008
building a server control that inherits button and giveing it other click capabilities
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Feb 24, 2011
Ok, so I was playing around with Ninject, a "Service Layer" and a "Repository Layer".I built a simple console application to to play around, this is what I came up with:
Imports Ninject
Module Module1
Sub Main()
Dim Kernel As IKernel = New StandardKernel(New CustomerModule)
Dim Service = Kernel.Get(Of CustomerService)()
Console.WriteLine(Service.GetCustomerByID(1).Name)
Console.Read()
[Code]...
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