I am new to classes, and I am new to Visual Basic in general, but I am working on a multi class program. The code seems to be correct, but I am trying on instantiate a class oject with the code:
I am getting a strange error when I try to build my solution. The error occurs when I am calling the oGetHeaderValue function and passing the parameters.
Dim oGetHeaderValue As New clsGetHeaderValue Dim returnString As String returnString = oGetHeaderValue(strInvoiceNumber, strOrderNumber)
The error message is: Class 'clsGetHeaderValue' cannot be indexed because it has no default property.
[code]This is my Code the error is Class 'System.data.datatable' cannot be indexed because it has no default property.. When i try this code in oledb it works but here it wont..
<AcceptVerbs(HttpVerbs.Post)> _ Function Widget(ByVal collection As FormCollection) As ActionResult ... If ... Then
[code]....
I upgraded to ASP.NET MVC 2 Beta and ASP.NET MVC 2 Futures Assembly for Beta and now ToValueProvider() fails with this compile-time error: Interface 'System.Web.Mvc.IValueProvider' cannot be indexed because it has no default property How do I use ModelState.SetModelValue() if not with collection.ToValueProvider()?
I have the following method to strip hidden and user-specified columns from a gridviewrow and return a tablerow. [Code] However, when I run this code and hit the Add method for the TableRow, I get an InvalidOperationException stating the Collection was modified; enumeration operation may not execute. I've gotten this exception before, but usually it's because I'm attempting to modify a table that is databound.
VB code: Public Class InputBox Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim a, b, S, p a = InputBox("Enter length") b = InputBox("Enter width") S = a * b p = a + a + b + b End Sub End Class
In InputBox lines i get this error: Class 'LearningVB.InputBox' cannot be indexed because it has no default property.
I am not sure what I am supposed to write in the code behind for my vb.net project. I have a repeater that filters a gridview. When trying to declare the scalar variable @CompanyID, I get the error.
dsLetters.SelectCommand = "SELECT DISTINCT LEFT(ProductName, 1) AS [Letter] FROM Product, CompanyLink, Company WHERE Product.ProductID = CompanyLink.ProductID
Class 'System.Windows.Forms.Label' cannot be indexed because it has no default property Really can't figure out why I'm getting this error... tried to google it but no success. Could anyone point out what I'm doing wrong? I'm sure it's something simple. The code in red is where the error occurs.
I'm having a few problems converting some code into VB.NET from C#. Most of the translating is done, but I am getting errors when I try to run my code, and I can't figure out what is causing them. Here is the Sub I translated.
Public Sub CreateWidget() Dim blue As LCDColor blue.Red = 0 blue.Green = 0
[code]....
The error I receive on this line ("vision.Widgets.CreateWidget(wg1)") reads "In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user."
I am making a new class that requires a lot of input information. Some of the properties need to be set to a default value, however I do not want to hard code them into the class.
What do you think would be the most efficient way to populate these properties?
I've been thinking of making a new class to hold all the default props and pass them as one object into the new class as a single argument but it seems kind of clunky.
Given a simple class like this: Public Class clsOB Implements System.ComponentModel.INotifyPropertyChanged Private _Frequency As Double Private _Value As Double Public Event PropertyChanged(ByVal sender As Object, ByVal e As [Code] .....
And then I'd like to do something like this: Dim o As New clsOB(50, 30) o = 31
I receive a System.Data.SqlClient.SqlException in the following code: Specifically Incorrect syntax near ' In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user. The exception detail in its entirety is shown below the code.
I have a listbox and I want to loop through each of the items to see if the string im looking for is inside. I know I could do .contains but that wouldnt look at substrings. The code im using looks like this:
While tempInt > Listbox.items.count then if searchString.contains(listbox(tempInt)) then end if tempInt+=1 end while
Everything in the loop is fine but VB gives an error on the listbox(tempInt) part. The error is "class windows.forms.listbox cannot be indexed because it has no default value". get around the default value crap? I tried putting in a blank string but no change.
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?
I have a website which is code generating practically everything on the page. The home page consists of a right menu which is being built via code. It uses ystem.Web.UI.WebControls.TableCell class and creates a td for every new item.ere is a snippet of the code:
Public Sub BuildMainMenuStructure(ByVal Cell As TableCell, _ ByVal Contents As DataTable, _ ByVal ReadMode As Boolean, _
I'm creating a student evaluation form in a repeater that should submit the evaluation responses and update the SQL database, but I keep getting the error mentioned in the title. I'm coding in ASP.Net using VB.
I am developing a VB.NET program to search for text in a specified column from a Datagrid. I am almost finished implementing this following the MS tutorial at:[url]But now I have just one compilation error:
[code]...
Also, I'm not sure if it is good to be declaring these variables new like this since I believe I already call them new elsewhere in my code.
I'm working with a listbox that has, let's say, 20 items. The size of the listbox allows the user to see the first 5 items. However, the listbox has one preselected item which is sometimes not visible because it isn't one of the first 5 items.
After I set the selected Item for the listbox how can I ensure that the lisbox is scrolled appropriately so that the selected item is visible to the user?
Say I wanna bind to dictionary that TKey is string with XAML:<Label DataContext="{MyDictionary}" Content="{Binding Item("OK")}" />Doesn't work.How should I do it?
Im trying to write a sub where a item from the first listbox (listbox1) is transferred to the second listbox(listbox2). When I try to call it on the button handler I get the following error:
if a new value of Calendar is selected, it would trigger .SelectionChanged event, but what if same selected value is clicked again? How should i identify it uniquely?
While running the code I've included below I receive the error "EntityCommandExecutionException was unhandled by user code.I'm then told to look at the inner exception for details...and there I see under Data:"In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user."And under Inner Exception --> Message:"A transport-level error has occurred when receiving results from the server.[code]
