I made this procedure re-use a select query:
[code..]
And I use it like this if I would want the selected value placed in a textbox and it works fine
[code...]
However if I want the value to be passed in a string like so:
[code...]
The string ends up having an empty string value. How do I assign the value I queried to that String?
How can I create a function that returns an object of a certain type, which the user of the function specify in the argument (using vb.net 2010) ?
[Code]...
The code above doesn't work, but maybe it can explain what I want to achieve. Using this feature, I want to hydrate my data transfer objects from datatable. Client will just call this function, specifying which DTO the client wants, and this function will just create that DTO and populating the properties with reflection GetType.GetProperties().
I am trying to pass a list in string.format as the parameters to the SQL statement, but I get the following error: Index (zero based) must be greater than or equal to zero and less than the size of the argument list. I know that I can get it to work when I list out each individual list member as the arguments, but I am wondering if there is a shortcut so I can just use the list object as the only argument.
[Code]....
I have a class and method exposed to a client asp.net app. The class looks like
<DataContract()> _
Public Class Class1
Private v_string As String
Private v_integer As Integer
[code]....
The method is declared as
<OperationContract()> _
Function GetStuff(ByVal bar As Class1) As String
In the client code I create an instance of Class1 and set the values for v_string and v_integer, but using Wireshark to look at the xml being sent to the server only a value for v_string is being sent as part of Class1. I'm guessing this is because it considers the value of v_integer to be null/not set. Here is an example of the client code.
Dim MyService as New Service1.ServiceClient
Dim test as New Service1.Class1
test.P_integer = 1
[code]....
how different types are passed/used since Integer is a intergral type and String is a class, but can't seem to work out what to do to fix the problem.
m getting an error while using Text1.SetFocus the error is invalid procedure call or argument
View 2 RepliesPublic Class ABC
Public Sub Foo()
AA.Bar(nothing, Sub()
End Sub)
End Sub
End Class
I feel confused at the second argument of function AA.Bar, this argument is specified as a Sub/End Sub procedure.What is the function AA.Bar's possible definition looks like?An event? Delegate? Pointer like?...Where can I find the latest VB.NET Grammar Specification?What are the new features in VB.NET 4?
Actually we have a system for doctors in dispensary and when they try to access records for the patients from doctors module they able to do it but when they try to modify records and save it gives an error "Run-time error '5': Invalid Procedure call or argument" We are using oracle 8i as database and vb6 as fronend.
View 20 RepliesI've spent quite a bit of time reading up on generics, covariance, etc., and I am failing to understand why I get the aforementioned compiler error in this type of codeLet's say I have a base "Bill" class made up of a collection of Lines..
Public Class Bill(Of L As Line)
Private _lines As List(Of L)
Public Property Lines() As List(Of L)
[code].....
Is it possible to have an argument of any type? Here's what i mean:[code]
View 3 RepliesI have the below lines of code :I am getting the error as mentioned in the Title above.This error has come after converting a C# Code to VB.NET Code which is mentioned below:
C#:
public override IChannelListener<TChannel> BuildChannelListener<TChannel>(BindingContext context)
{
if (context == null)
[code]....
I'm using VB.NET 2003 with .NET Framework v1.1. I know it's getting a bit old now but I'm stuck with an existing program and don't have the time/knowhow to convert it to anything newer.
My question would probably be solved very easily with Generics in .NET 2.0 but as I can't use that right now, I'd like to know if the following is possible:
I have a load of manager classes which inherit from DictionaryBase and hold collections of my custom classes. For example, I have a Employee class, a Batch class, a Supplier class, etc... and each of these has a Manager classwhich holds a collection of them - eg: my PlantTrayMgr class holds collections of PlantTrays, etc..
I have one particular form where I have to populate loads of comboboxes with the contents of various Manager objects. What I currently do in my form load event to populate comboboxes is this:
Code:
Option Strict On
Option Explicit On
Private _plantTrayMgr As PlantTrayMgr
[Code].....
Why when I press button without enter the data to one of the field I got:
Argument 'Date1' cannot be converted to type 'Date'.[code]...
In a threaded app in VB 2010, I can do this[code]...
View 6 RepliesHow would that work? I can't find any documentation in the MSDN.you know how when you open a txt file it opens up notepad and loads the file? how does the whole 'loading the file' thing work in VB?
View 1 RepliesI have the following two tables defined...
CREATE TABLE [LogLevel] (
[Id] int primary key
,[Name] nvarchar(50) not null
[code]....
After creating a fresh endity model, I add the two tables above. When I try to build I get the following errors...
Type argument 'Inxsol.CommandPlan.Data.Model.Log.LogLevel' does not satisfy the 'Class' constraint for type parameter 'TEntity'.
Value of type 'System.Data.Objects.DataClasses.EntityReference(Of Inxsol.CommandPlan.Data.Model.LogLevel)' cannot be converted to 'System.Data.Objects.DataClasses.EntityReference(Of Inxsol.CommandPlan.Data.Model.Log.LogLevel)'.
[code]....
I have :
Dim con As New OleDbConnection(My.Resources.ConnectionString)
// Give exception = Format of the initialization string does not conform to specification starting at index 62.
When I substitute the actual value of the Resource, it give no exception :
Dim con As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:
awData.xlsx;Extended Properties=""Excel 12.0 XML;""")
The value of ConnectionString in Resources :
<data name="ConnectionString" xml:space="preserve">
<value>Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:
awData.xlsx;Extended Properties=""Excel 12.0 XML;""</value>
</data>
I don't understand why is this happening ?
I think this should have been replaced even before the compilation process..
Then why is it giving exception ?
I got 2 classes in a form, and I would like to pass a value from a textbox to the other class, so I decided to use Deligate.
Below is the code.
Public Delegate Sub delPassSize(ByVal text As TextBox)
'To get size from Class Calculate(Class 2)
Public Sub GetSize(ByVal txtForm1 As TextBox)
[code]....
and the error message is 'cls.Getsize is a delegate type and requires a single 'addressof' expression as the only argument to the constructor.'
what line i get this error " Argument 'Prompt' cannot be converted to type 'string' "
Try
If movieTxt.Text <> Nothing And ratingCmb.SelectedIndex <> 0 Then
For a = 0 To i
[Code]......
The problem that I am facing is that I want to call a shared DLL created by qt4. Now reading the result from the DLL file is working well and good. But the problem arised while passing arguments required by the function in the dll file.The argument (both string or int) is not passed properly. Suppose I pass an integer argument 8, but 1 is passed. Whatever is my input only 1 is passed.
View 2 RepliesI'm trying to rename some image files....pretty straight forward it seems. However, I keep getting the message "Procedure call or argument is not valid"[code]...
View 10 RepliesI have a "working" program for a Vigene cipher, but I am having an issue that I can't pinpoint. Anytime an accent mark is used in the plain text i get a "Procedure call or argument is not valid" error. So trying to encrypt "Vigene cipher" for example will not work. Using the plaintext "f" with the keyword set as "b" the output is Decryption handles these characters just fine. The following code is my encryption sub:
Private Sub btnEncrypt_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEncrypt.Click
Dim Key As String = txtKey.Text 'makes the password
[code].....
Im a student doing an assignment, how do i pass the value from a sub procedure to a function procedure....i want to pass the value from decSubtotal to a function procedure named CalculateDiscount; check out my code--
[Code]...
I'm trying to pass some parameters into a data annotation, and it is rejecting my named parameter. It's the same exact syntax in Microsoft's documentation for the TableAttribute, except in the documentation they have an uppercase N, but intellisense on the parameter in VS asks for a lower case n. It looks like the constructor was updated, but the tooltip wasn't, because this is what shows up when you get the syntax prompt: And I needed to be able to specify schema. But now I've found another way to do this. Why I was trying named parameters in the first place; because this wasn't working. Apparently I missed trying this syntax, which works.
View 2 RepliesI am creating a process part of which returns a delimited string containing security group numbers, a few examples:
'3|5|6|9|7|4|8'
'5|6|299|27|4|8
'5'
I'm looking for help in fathoming an algorithm for splitting this string into the numbers so that I use each number as an argument within a separate query.Since there maybe only one number, or dozens I cannot work out the logic to make this happen correctly each time.
I am trying to load a movie from openfiledialog.filename, but i keep on getting an error. Here are the 2 things ive tried
1) AxShockwaveFlash1.LoadMovie(OpenFileDialog1.FileName)
2) Call AxShockwaveFlash1.LoadMovie(OpenFileDialog1.FileName)
Both of the codes get the same error that looks like this
Argument not specified for parameter 'url' of 'Public Overridable Sub LoadMovie(layer As Integer, url As String)And here is the URL it goes to when you click "Show Error Help" http:msdn.microsof...f0a(VS.85).aspx
Argument matching parameter 'separator' narrows from 'String' to Ƈ-dimensional array of Char'. ERROR
View 7 Repliesi have 2 mustinherit classes where one is a generic one:
'Visual Basic 2008 - .net 3.5 - Any CPU
Public MustInherit Class BaseObject
End Class
Public MustInherit Class BaseObjectList(Of T As {New, BaseObject})
Inherits List(Of T)
End Class[code]...........
i receive: "Type argument BaseObject is declared 'MustInherit' and does not satisfy the 'New' constraint for the type parameter"users would never enter data in the wrong form,files they choose to open would always exist and code would never have bugs.
As you noticed, in the code bellow, the event argument for the form click event has the type "TimedEventArgument".When the event is raised, e.Time holds the time where the form was clicked.Add the missing code in the class Form1 to make this work.You will not change anything to the methods "Form1_Click" or "Form1.Load".You will not use Option Strict On. HOWEVER, you will not do any narrowing or late binding that wouldn't have been allowed if Option Strict was on.You cannot create any new Class, Structure or Module.You cannot cast the EventArgs to TimedEventArg in any way
[code]...
I am not the one who developed this tool, it's the previous programmer and they gave the project to me to update it however, when I try to run the application in my local computer I am getting this error: Argument not specified for parameter 'XLSFile' of 'Public Sub New(XMLFile As String, XLSFile As String)'.
The error points to the code below in bold letter:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Zym.ConnectionString = Web.Configuration.WebConfigurationManager.ConnectionStrings("cnworkload").ConnectionString
'Dim cn As System.Data.SqlClient.SqlConnection = New System.Data.SqlClient.SqlConnection(Zym.ConnectionString)
'Dim DA As New System.Data.SqlClient.SqlDataAdapter("SELECT * FROM SUMMARY_WORKLOAD", cn)
[code].....
I want to do something like the following in VB.NET, is it possible?
Function task(value as Object, toType as Type)
Return DirectCast(value, toType)
End Function