I have a form called SearchScreen and on that screen is a custom control of class recentlyOpenedCompany called 'uxRecentlyOpened' within the form. I have made no changes at all to the SearchScreen form. I have added an aboutdialog to the project and deleted an about form. Thats itand
View 1 RepliesI found some code on the internet as below (slightly modified).It simply requests the content of a webpage.However I get two warnings:
Warning 1 Variable 'srRead' is used before it has been assigned a value. A null reference exception could result at runtime.
Warning 2 Variable 'Str' is used before it has been assigned a value. A null reference exception could result at runtime.
I know I can simply forget about the Finally and add the code to the try block.Will that be the way to go or can I prevent the warnings using a different approach?
I am using vb.net 2003 for a stand alone windows program. I access an Access database file via Jet 4.0 and OleDbDataAdapter.
The program is like a "check book" for commercial fishermen to track their landings in relation to the amount of "quota" that they have been assigned. The program is structured so a fisherman can enter multiple boat names and track each one seperately. To work on a particular boats account, the fisherman would select a boat name from a drop down list. The boat name is then captured and assigned the string variable name of "xid" and in a Module have this code:Public xid As String
I have used the DataAdapter Configuration Wizard to setup the data connection and assign the DataAdapter and DataSet. I went into the code and manually entered a WHERE clause to filter the data for the selected boat. The proper syntax was an issue that I had a problem with earlier, but once I got that correct, the program worked fine. The code that works is below:
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Does anyone have any practical examples where F# would be a better choice than C# or VB.NET? Please can you demonstrate using source code?
View 8 RepliesSo my teacher gave us this assignment that I'm having trouble understanding why she wants us to write outside of the button Private Sub.1. Write the code for the Calculate Total and Grand Total button a. Declare a variable to accumulate the individual totals outside the sub procedures b. Calculate the total by multiplying the selected number of atendees by the selected cost, and display this total in the label next to Total c. Calculate the grand total by adding the total calculated in step 3.b to the grand total variable. Display the grand total next to Grand Total I'm don't understand why she says 1a. I feel like you can just write all the variables in the same Sub on the calculate button.
View 8 RepliesFirstly please see this thread.>>[URL]..In the code in that thread the code calls on MS Word to check its dictionary and then report back TRUE / FALSE if the word is found or not.
Rewriting the code slightly for a Windows Form application with one Button on the Form I now have.>>
Option Strict On
Option Explicit On
Option Infer Off
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I have a bunch of warnings dealing with Crystal Reports, which I was going to use in the program but change my mind. deleted everything I can find dealing with Crystal Reports to no avail. I stall have 20 warnings.
View 4 Repliesdoes it make sense to use a backgroundwoker that includes a parallel process that starts many
processes if during this the full application is frozen by the parallel stuff itself?
Is there a way in Visual Studio (2008 or 2010, don't care right now which one) to show all warnings and/or messages in a project?Currently, I see all warnings and messages for all open files/documents. It would be handy if I could switch an option somewhere or something to show all the warnings and messages without needing to open everything.(I ask this as I'm developing a web site in VS that I have inherited from an ex-colleague and there's lots of messages per page regarding outdated attributes and the like)
View 1 RepliesI'm trying to get all nodes below but I am getting an error message of: Overload resolution failed because no accessible 'GetAttributeValue' accepts this number of arguments.
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For our VB.NET websites we use SVN for Source Control and CruiseControl.NET for continuous integration.
To use the SVN build number in the compilation by CruiseControl.NET we need to use Web Deployment Projects. We then replace in the configuration file the Version field with this variable from SVN Labeller[code]...
I've just converted a project from .net 1.1 to 3.5, and I'm being given loads of warnings in the error list. The program compiles and runs ok, but I think I should probably try to at least reduce this large number of warnings.The trouble is that the error list only tells me about the first 102 warnings. Even when I fix one, the number stays at 102. So I have absolutely no idea how many warnings there actually are. If there are 150, I'd like to get rid of them. But if there are 10,000, I don't have the time to fix them all.Is there a way to see the actual total number of warnings?
View 2 RepliesVB.NET has this rather annoying limitation which caps compiler warnings reported at 100.vbc : warning BC42206: Maximum number of warnings has been exceeded.This makes things rather frustrating when trying to size up the amount of effort that would be required to comply with VB.NET best practices, such as enabling Option Strict.
View 2 RepliesI don't know why or how but my project just turned into a not working system with hundreds of warnings... I didn't touch any of the assembly or anything that could do this and I don't have a clue. I have backups but one days' work will be gone if I can't resolve this.I got warnings like these:Warning1Could not find type 'crm.MyTextBox'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built.00 Warning2The variable 'txtQty' is either undeclared or was never assigned.L:MartynascrmEquipmentSale .Designer.vb3270Warning3Could not find type 'crm.Mycombox'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built.00 Warning4The variable 'cmbProduct' is either undeclared or was never assigned.L:MartynascrmEquipmentSale.Designer.vb3310 Warning5Could not find type 'crm.MyTextBox'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built.00
View 6 Repliesi wanted to ask how to make picturebox1 ,to which functions are already assigned, perform the same function as picturebox2 ,to which no functions are assigned.For example:I have already made picturebox1 and have assigned it alot of function like when play button is pressed then picturebox1.visible = true and when we press pause button picturebox1.visible = false. So now i decided to make a theme and have to remove the picturebox1 and want to allow the picturebox2 to havefunction of picturebox1.But when i disable the theme the function of picturebox1 should go back to picturebox1.
View 6 RepliesI am creating my very first Service application and it seems to be quite simple to do. I want to create an eventlog so I can write away any exceptions that may occur. Is this the correct way? I have the following
If Not MyLog.SourceExists("MorrisonsSync") Then
MyLog.DeleteEventSource("MorrisonsSync")
End If
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I am using vb.net with phpMyAdmin MySql database. While running the piece of code below, the program hangs in the for loop before the variables are assigned values from the data table(dt)...
'Check for appraisal period-----------------------------------------------------------------------
Dim sqlCheckDate As String = "SELECT * FROM tblappraisalsetting where appSetID=(select max(appSetID) from tblappraisalsetting);"
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I have two very similar vb.net projects. Both have recently been converted from .net 1.1 to 3.5.In one, the following code gives no warnings. In the other I get a warning when I try to set the parameters of the mysql command object:
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If I follow the instructions, and use "AddWithValue" instead, the warnings go. But I can't figure out why I don't get these messages in the first project. It seems there is something different in their configuration, but I can't figure out what. Both use the same version of mysql.data.dll. And both are configured to show warnings in the same circumstances via the project>properties>compile menu. Can anyone suggest where else to check?
I have a vb.net dll which I imported in an unmanaged c++ project.I successfully created an object of the class object using:
CComPtr< IWSconnection > pIWSconnection;
pIWSconnection.CoCreateInstance( __uuidof(IWSconnection ) );
Then, when I tried to call a method from the dll:
pIWSconnection.connect(...);
I am getting an error: pIWSconnection undeclared identifier.Why would the object work with 'CoCreateInstance', and not with 'connect'?
I am trying to catch an error that a directory does not exist. When I don't try for the error checking, this line works just fine:
Dim
xmlFolder()
As
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i'm using a foreach to loop through my regular expression like:
For Each secwordMatch As Match In secwordmatches
Dim secWord As String = secwordMatch.ToString
Next
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Im new to programming and I started by grabbing some code here and there from various internet sites. I made some little programs without sense but Im stuck on my new program.
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I'm studying visual basic and wanted to know where I place my code in the new project which looks like this below:
Public
Class Form1
Private
Sub Form1_Load(ByVal sender
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I'm creating variables.
In my project there are lot of variables, and some of them are not used at all.I want to clean up the code by removing these unused variables. These variables are not shown as unused when i build the application. The problem is with the global variables, and not with the local varible for a function .Is there a method to find these unused variables?
View 8 RepliesHow to pass a variable in one project to dll in vb.net
View 1 RepliesI try to create a sub main in a project but i can not.I have create a module called Module 1 and inside i have created a Main Sub which is intended to creta a thesaurus_form class instance , like this Code: Module module 1Public Sub Main()Dim thesaurus_form2= New Thesaurus_formEnd SubEnd module.Instead of this, once it has cretaed a first instance of the thesaurus_form class, it creates another one what i dont want at all..How can i do do make it execute the code which is inside the thesaurus_form_load sub..I also can not create a global variable or a staitc variable, because i receive this message.static is not valid in a member variable declaration.
View 2 RepliesForm1 has 2 public string variables defined and initialized to "" (an empty string).Form2 has 2 text boxes and a button. When the button is clicked the public variables on Form1 get set to the values in the text boxes.This works fine.I recently had to add a module to my project so that I could use Main as the startup item. Ever since doing that the above no longer works.The variables never get set to the values in the text boxes. They just stay empty.My Main code is simply this for now:
Dim f As New Form1
Application.Run(f)
I'm developing a revised version of a system I have been using for years, but with all the advantages of .NET features that were not around when I first made this. It's proving a steep learning curve! So, when a user logs in through my Login.aspx page which simply compares username/password to Database record, the system creates a session variable containing the user's Username and various other things. There are two type of variable which will be common to all elements of this system
User Specific data, Username, Permissions, etc
Setting variables, drawn from a database of pre-set facilities which are setup within the system, some will determine which facilities work, how they work, and some will be dependent upon the User's permission. Obviously, I could set everything within the Session data, but that'd be inefficient wouldn't it? If I were to set these globally available variables in my App_Code, how would I go about setting this up so that, for example, those variables which require a database call, are set for the duration of the Logged-In session and do not require constant Database lookups? Further to that, those variables which are dependent on the session state, would need clearing on each LogOut. I am using VB.NET.
I Know you cant sum to strings to each other so i trying to make the variables to Integers first but i can figure it out why it does not work![code...]
View 12 RepliesHow would i make txbroot always show the value of root, because at the moment I will still show my current directory (this is in VB.net 2010)
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