I'm working with a third-party library interfacing to an old database system. There's a method - CallProg that calls a "stored procedure" (for lack of a better translation - any Pick users in the crowd?). However, instead of doing something like this:
Public Sub CallProg(ProgName, ParamArray ProgArgs() As String)
...
End Sub
[code].....
Probably an easy question to answer...I have 9 buttons on my form
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
etc. and all do the same thing so how can I merge them into the same sub so i don't have to copy and paste a bunch?
So Google's not a good choice for looking up examples for overloaded operators like "And" or "Or", because it tries to parse them as operators to the search query itself. MSDN also provides no examples of how to implement an overloaded And operator, so I'm not certain how to properly overload it for my project.Does anyone have an example of "And" at minimum? "Or" or "Xor" (or any others) would be a bonus. I'm not certain if I need to overload these operators in my objects just yet, as I'm still building them out and haven't planned beyond just yet. But having examples around that might get indexed by Google will probably help save the sanity of a lot of people...
View 2 RepliesIn this project I am making a grade calculator; I am modifying an existing code I have to have the following characteristics: I need to modify the DetermineGrade method so that it accepts the maximum number of points that can be earned on both tests (currently, the max number of points is 200: 100 points per test). For an A grade, the student must earn at least 90% of the total number of points. For a B, the student must earn at least 80%. For a C, at least 70%. For a D, at least 60%. If they earn less than 60% of the total points, then grade is F. Here is the exisint code I have for the DetermineGrade method specifically:
Public Sub DetermineGrade()
Dim intTotal As Integer
intTotal = _intScore1 + _intScore2
[code]......
I have two computer. Both have VS2003, but on one of them, Navigate() is overloaded. Its either Navigate(string) or Navigate(string, ref obj, ref obj..and so on). But on my other computer, Navigate only has Navigate(string, ref obj, ref obj....)
View 1 RepliesI'm trying to call a private sub in another private sub. For example ;
[Code]....
When you refrence a Function like this one:[code]You may want to be able to get more out of that, like this.[code]So how would I be able to add subs or functions onto a sub or function like that?
View 4 RepliesI have created a dialog as a winform and am calling that winform like this:
Dim dlgEditChangeOrder As New dgEditChangeOrder
Dim dlgResult As DialogResult
dlgResult = dlgEditChangeOrder.ShowDialog
pretty simple. I want to be able to set the visiblility of a control on the win form when the win form is called. I would like to do this as a constructor so I could write the following. Dim dlgEditChangeOrder As New dgEditChangeOrder(visibleIsTrue)
Can someone give me the contructor code to make this happen? The reason I am concerned is I dunno if its legal to do this inside a winform since the winform is loaded bby the precreated IntializeComponent() function
I have some VB6 code that I am converting to VB.net and came across this section
Declare Function TmSendByLen Lib "tmctl.dll" Alias "TmSendByLength"(ByVal id As Integer, ByRef msg As Any, ByVal blen As Integer) As Integer
'snip'
[code]....
I have not come across the Alias term before but I can guess what it does. What I am unsure of is the reasoning behind overloading the alias. If that is what is happening.I need to create overloads for the TmSendByLen function as the 'As Any' is not supported in VB.net so I am not sure if I should just remove the alias or if I should leave it in place.
I am looking for a little expert design insight.I am trying to save an overloaded property from a generic class.
Base Class
Public MustInherit Class BaseEvent
Public MustOverride ReadOnly Property IsWorkCalendar() As Boolean[code]....
I tend to loath repetition in code, so when I come across a problem where the only different is types I tend to use generics. Coming from a C++ background I find vb.net's version to be rather frustrating, I know C++ has template specialization and I guess vb.net does notso what I have is a set of routines that do the exact same code regardless of type being passed.something like this
Public Sub decision(Of T)(ByVal a As T, ByVal b As Integer)
If b > 10 then
gt(a)
[code].....
I have an abstract class in vb.net with two subclasses. In the abstract class I have a constuctor that looks like this:[code]I would like to create a second constructor that doesn't take any arguments and just initializes the args to default values.[code]When I attempt to create a new subclass using the second constructor the compiler complains that I'm missing two args to the constructor.Is there a reason I can't overload the constructor in the abstract class?
View 2 Replies[Code]...
Why is the first line not correct? What it wants is a System.Type and a System.String but refuses to work.
As some of you may know i been working on an inventory program, for this part of the app the user enters an ID number and clicks search, the app searches for the ID and shows if it exists or not.
[Code]....
In my previous application using Linq2SQL I was able to overload constructors with parameters by doing this:
Namespace CoreDb
Partial Public Class Accomplishment
Public Sub New(ByVal accomplishmentTypeID As Object, ByVal description As String, ByVal title As String, ByVal applicableDate As DateTime, ByVal lastUpdatedBy As String)
[code]....
Basically using a partial class off the object, sharing the namespace of the .dbml file and calling the default constructor and then doing additional stuff. So then in my code I could do something like:
Dim accomplishment As New Accomplishment(id, description, title, applicableDate, lastUpdatedBy)
This seems to no longer work in Entity Framework as there is no default constructor to call.Does this no longer work? And if so what is a good alternative to implementing something like this?
It seems that my library of extension methods that was written in VB.NET has problems.I have 2 overloaded extension methods Crop().When i reference the lib from a VB.NET project i see them. If reference it from a C# project i can't see them.
View 3 RepliesNot sure if this question belongs here or the Interop forum, but here is the situation. I have a vb.net app that was upgraded from vb6. It has an overloaded Login method. A simple method with two string parameters for name/password calls the primary login method with numerous optional parameters. The simple method is for compatibility with C# because, until Visual Studio 2010, optional parameters were not supported.The C# intellisense finds the overload and compiles ok... but throws an error at startup stating that it cannot find the Login method. This makes no sense and appears to be a problem with vb. (I am using .net 4 for both vb.net and the c# test harness.)ILDASM shows the following:
Public Function Login(ByVal LoginName As String, ByVal Password As String, ByVal Alias_Renamed As String, Optional ByVal LoginFrom As String = "", Optional ByVal ClientIPAddress As String = "", Optional ByVal ServerIPAddress As String = "", Optional
[code].....
I'm trying to create an overloaded method in a module, but if I type Public Overloads Function GetData(ByVal sql As String) As String it tells me "Inappropriate use of 'Overloads' keyword in a module". Are overloaded methods not allowed in modules?
View 3 Repliesi have to combine 2 wav files in my project.
View 1 RepliesI'm a long time VB.NET developer and has recently switched to C#. I found out that some of the built-in VB.NET functions (which predates .NET back to 6.0 and BASIC itself) such as the String.Left, or Right, or advanced functions like saving to the registry (SaveSettings and GetSettings) are noticeably absent. What I did was create a new project in the same solution with VB.NET as its language and recreate basically all the functions I need that are available in VB.NET. And then I just call that to the C# code I'm writing.Since compiling the code in .NET pretty much boils down to the same CIL, it shouldn't matter performance-wise what language I wrote the code in or whether I mix C# with VB.
View 4 RepliesI'm trying to write 2 extension methods to handle Enum types.One to use the description attribute to give some better explanation to the enum options and a second method to list the enum options and their description to use in a selectlist or some kind of collection.You can read my code up to now here:
<Extension()> _
Public Function ToDescriptionString(ByVal en As System.Enum) As String
Dim type As Type = en.GetType
Dim entries() As String = en.ToString().Split(","c)
[code]....
So my problem is both extension methods don't work that well together. The methods that converts the enum options to an ienumerable can't use the extension method to get the description.
I have 3 textbox's and 1 dropdownlist and I am trying to combine all that data into one string. Here is what I tried but is not working:
Private Sub FullAddressTextBox_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles FullAddressTextBox.TextChanged
FullAddressTextBox.Text = AddressTextBox.Text & " , " & CityTextBox.Text & " , " & StateDropdown.text " , " & ZipCodeTextBox.Text
End Sub
My goal is to combine these simultaneously as whoever is filling in the data or after I hit my submit button, if so it has to occur as the first event.
I think my problem has to do with .text after the statedropdown, Is it suppose to be .tostring?
I've seen several posts on the subject, but none seem to answer this particular dilemma. I have two datatables that I obtained by querying two separate servers.[code]
View 7 RepliesTry5Times will try a function for 5 times.that function can have any number of argument and return a boolean.
If the function return false, try again.
If the function return true, stop.
How to make such function and delegate? Is there a general delegate?
im just playing around making a silly web browsing application for no reason but to look for the right code and see it i guess
well anyway is there a way for me to make a 'for' statement that does an action to a string of objects with same name but different number like:
For fame As Integer = 1 To 10
If PageLoc = fame Then
WebBrowser(fame).Navigate(TextBoxAddress.Text)
End If
Next
I have two (actually many) .png images in my application. Both have transparent areas here and there.I want, in my application, to take both images, combine them, and display the result in a picture box. Later I want to save the result through a button.So far I managed to find the two images and combine them, but it seems the transparency thing won't work. I mean, if you put one image over another, only the top image is visible as the result because, apparently, the image's background is a plain white box. Which is not. Here is a bit of my code:
Dim Result As New Bitmap(96, 128)
Dim g As Graphics = Graphics.FromImage(Result)
Dim Name As String[code]....
resourcesPath is the path to my resources folder. Bases is a folder in it. And Name is the image's name.
How to combine these two conditions in one section
Private Sub DataGridView1_CellValidating(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles DataGridView1.CellValidating
'condition 1
' check given value is numeric or charactr type
If e.ColumnIndex = 3 Then
If Not IsNumeric(e.FormattedValue) Then
DataGridView1.Rows(e.RowIndex).ErrorText = " must be a numeric value"
[Code] .....
'condition 2
' check given value is greater than 0 or not
If e.ColumnIndex = 3 Then
If (e.FormattedValue.ToString = "0") Then
[Code] .....
Let's say I have 3 tables: carts, baskets and eggs where a basket can contain many eggs and where carts contain many baskets. Each basket has a foreign key that maps to a cart and each egg has a foreign key that maps to a basket.I need to return a table that contains these 3 columns:Cart Name | Count of Baskets in Cart | Count of Eggs in Cart.Each table is an EF and I'm using linq with VB.So far, I have 2 queries: one that returns the columns Cart Name and Count of Basket and another one that returns Cart Name and Count of Eggs. How can I combine these two result tables so that I get the results in one table?
Dim query1 = (From cart In myEntities.Carts
Where cart.UserID = TheUserID
Join baskets In myEntities.Baskets On baskets.CartID Equals cart.CartID
[code]...
I'm trying to combine two arrays. Simply append 1 array to another. I have two string arrays. Lets just say array1 and array2.would the following be correct?
array1.Copy(array1, array2, UBound(array1)) I guess I'm slightly confused about the parameters. When I try to use the above code I get green squigglies with the following error.Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated.
[Code]...
this is my code right now i want to make it so that it will keep adding the total. meaning if i get an answer then get another answer i want both of them to add up and show.how can i change it so that it will do tat??