Find All The Classes Of The .net Controls?
Aug 15, 2009How do i find all the classes of the .net controls for example how do i see the class of the button control?
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ASP.Net - Accessing Controls From Separate Classes?
Jun 23, 2010I have an ASP.NET Web Site I am creating in Visual Web Developer 2008 Express using Visual Basic as the language. It is actually a rewrite-with-mods of an existing ASP script and I'm trying to chew what I've bitten off. I created my page with a text box (txtOutput) on it and since the end product is very complex, and it's generally good practice to separate like functions, I have created 4 separate classes in the App_Code section. My main page is Sync.aspx and has a code file Sync.aspx.vb with it. One of my code files is SyncDatabases.vb and in it I have created
Public Class SyncDB
In that class I have created some routines such as
Public Function ReadMSDB(ByVal SQLString as string) as Boolean
In this routine I want to put information in my text box txtOutput on the main form (the default - Form1).
My problem is that if I try:
Form1.txtOutput.Text = "Hello world"
or just
txtOutput.Text = "Hello world"
it says Name 'Form1' (or 'txtOutput') is not declared. I am sure I am missing something simple but have no clue what it is. I assume it's the fact that the write command is in a file (class?) outside the file (class?) containing the page itself but I don't know how to address it properly.
Custom Controls - .net Inherits 2 Classes?
Jan 16, 2012inherit from two classes in VB.net?We are developing Custom User Controls that inherits from say System.Web.UI.WebControls.Label. We are planning on implementing a bunch of these controls but they will share mostly the same additional properties. We are hopeful about centralising these properties.I have looked into interfaces but it seems they only 'contract' properties you need to implement.
View 2 RepliesCannot Find A Way To Set Filetype To Jes Within 2008 Ftp Request Classes?
Apr 28, 2011the function to call the command filetype=jes. My calls to the ftp site arequote site filetye=jesasciiput filename.extquote site filetype=seqI have looked at the system.net.ftpwebrequest class and it works great for sending and files but need this one command to finish the call
View 6 RepliesFind Out Other Classes/control Handles For Different Programs?
Mar 25, 2010In all the sendmessage examples its always to Notepad using the class "edit" how would i find out other classes/control handles for different programs?
[Code]...
How To Find Out Other Classes / Control Handles For Different Programs
Mar 25, 2010In all the sendmessage examples its always to Notepad using the class "edit" how would i find out other classes/control handles for different programs? [code]I'm just testing this on mozilla firefox for now, but it doesnt send over the Virtual Key because i cant find the Hwnd.
View 2 RepliesUsing Inheritance-Based Controls - Creating As New Classes (not UserControls) Inheriting From An Existing System Control
Oct 15, 2011I seem to be having a problem with controls that I am creating as new classes (not UserControls) inheriting from an existing system control. Everything seems ok while I create the control code, through to the compile (which is successful and adds the control to the toolbox) and dragging the control from the toolbox to the GUI surface. However, when I then debug or compile the project, I get a message such
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Cannot Find Controls With In The Same Project?
Nov 22, 2010I am trying to update a Vs2008 project to vs2010. In one of my projects I have two controls. The controls are not being seen by the form when I open it up in design view. They are friend controls. (No code has changed since I opened it up in vs2010.) But it was running fine in vs2008.
View 4 RepliesFind Controls In Script?
Oct 14, 2009I'm having an issue finding an UpdatePanel inside of a Gridview inside of a Formview in Javascript. The Below Doesn't work.[code]....
View 2 RepliesCan't Seem To Find Anyway To Adjust The Volume Controls?
Sep 15, 2009I've been digging around but I can't seem to find anyway to adjust the volume controls (the windows general ones) using VB .NET.Basically, I want to make a program that's always on top that allows me to changemute the microphone and the other volume values on a specific device - not necessarily the one set as default.
I got this weird feeling that I'm missing something quite simple but I simply could not find anything. I saw some media players and such but nothing similar to what I was looking for.
Find A List Of The Controls On A Form?
Jun 10, 2010I have this VB.Net form and I need to know the names of all the controls on it. I would suppose that Microsoft keeps a list of all the controls on any given form I just don't know how to access it.
View 4 RepliesForms :: Find The Existing Controls?
Jul 31, 2009I am editing an application that was developed using VB .NET. The form has a button, I see it in the code but it is not visible in the Form. Also, when I place a new button, it comes as Button2 meaning there is a Button1 - I am not sure how to find where it is and place it at the right place.
View 2 RepliesHow To Find Angles Of LineShape Controls
May 9, 2012I need a Function or section of code that finds the angle of a lineShape. Alternitively, a code to find the angle between two set coordinates would also work. I need to know the angle in order for my program to work properly. I'm using VB Express 2010.
View 2 RepliesVS 2005 - Find A Group Of Controls?
May 18, 2009I have a group of controls dynamically added to a forms with a name like "OptionID_#" where the "#" is unique number.1st I need to check if these controls are checked/unchecked, but am having a difficult time even finding them to make that first check.I thought controls.find might work, but Controls.Find ("Option ID_" True) dues not seem to find my controls.2nd I need to get the "#" from each of those checked options.I think that Split(conControl.Name, "_") should work to get me two different parts one with the OptionID, and the other with the "#".Still stuck on the first part though of actuall locating the controls I need.
View 9 RepliesFind Total Days Between Two Date Controls Selection
Jun 30, 2012Protected Sub Calendar2_Selectionchanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles Calendar2.Selectionchanged
Dim myDate1 As String = ""
[Code].....
Have to find total days from two date controls after selecting dates in two controls it should print total days by calculating after immediate selection of second date control
Unable To Find Controls Of A Jsp Webpage In Webbrowser Control?
Nov 18, 2010This time I am stucked with a JSP page which is loaded in my webbrowser control. I have checked that it has been loaded. But I am unable to locate any of the controls of that page. Even in the count of any html controls it displays me 0. The page contains two frames and there is no "iFrames". Has Javascript got do anything with this?
View 2 RepliesVS 2008 Find The Controls Name That Triggered Datagrid Event?
Sep 18, 2011I have a datagridview control with a number of comboboxes on it.I am generating a custom combobox with a DataGridView_EditingControlShowing event.How do you get the name of the combobox in DataGridView that fired the event?as all actions on the DataGridView trigger this Sub
View 2 RepliesUse LINQ To Filter Collection Of Nested Classes To Yield Dictionary Of Unique Properties Of Those Classes?
Jan 23, 2012I have two classes, one nested in the other. [code]Neither "Name" or "ID" are unique between operations and records.I wish to construct a dictionary using LINQ = Dictionary(Of String, Of List(Of Integer), whereby the keys are uniqe examples of Names in my collection and the values are the collective set of distinct IDs that are associated with those names.
View 2 RepliesVS 2010 Structure Classes So That The User Interfaces Though A Single Class While The Supporting Classes Are Hidden From Their View?
Jun 13, 2012How can I structure my classes so that the user interfaces though a single class while the supporting classes are hidden from their view? I think its best understood in an example:
Public Class MyInterface
Public Economic as EconomicClass
Public Sub New()
MyBase.New()
[code].....
So you might ask why am I even separating them? It's strictly for others who will be working with this interface. I need to funnel them though a logical structure:
interface.Economic.MyMethod
interface.Currency.MyMethod
etc
This way everything is already handled for them in the background and they only need to run the method they need. I don't know if I can have it both ways in VB.NET.
Forms :: Loop Through Controls In A Group And Find Out Which Button Is Clicked?
Sep 2, 2010I have a form with many buttons on it and I would like to loop through all the controls in a group control and find out which button is clicked.
I plan to use the click event of the button and I know it's easy to create a click event procedure for all of the buttons but would like to avoid that.
The group control is called GroupFilterButtons.
VS 2010 Calling Subs And Functions Within Classes That Are Within Classes?
Oct 24, 2009Here is some example code of what I mean:
vb
Public Class Form1
Private Sub Button1_Click(ByVal sender as Object, e as systemEventArgs) Handles Button1.Click
[Code]....
Find Runtime Created Controls - String Spanning Multiple Lines
Mar 21, 20091. i added a datagrid at runtime on a form. i want to bind a datasource to the datagrid in a button's click event handler, but the datagrid doesn't seem to be visible anywhere else outside the form load event where it is declared. how can i find the datagrid control?
2. and another beginner question.. how to i declare a string that spans multipe lines? i tried with the + operator like in c#, but it doesn't work.
Derived Classes Cannot Raise Base Classes
Jul 10, 2009I m trying to raise Click event of Textbox explictly but I m getting "Derived classes cannot raise base classes" error.[code]....
View 1 RepliesCould Not Find File 'Microsoft.Windows.Common-Controls Version=6.0.0.0, Culture=*, PublicKeyToken=6595b64144ccf1df, ProcessorArchitecture=*, Type=win32'._[projectname]
Nov 22, 2010I am getting the following error when i try to publish my application with the checkbox for ClickOnce Security On. Could not find file 'Microsoft.Windows.Common-Controls, Version=6.0.0.0, Culture=*, PublicKeyToken=6595b64144ccf1df, ProcessorArchitecture=*, _ Type=win32'. [projectname ]
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Loop And Enumerate Properties Of Nested Classes In Nested Classes?
Sep 24, 2010so far i got
code
For Each item As Reflection.FieldInfo In GetType(NameSpace.ClassWithNestedClasses).GetFields
rtfAppend(item.Name & ":" & Tab & item.GetValue(Me))
Next
For Each item As Reflection.PropertyInfo In GetType(NameSpace.ClassWithNestedClasses).GetProperties()
[code]...
which gets me the simple string vars and properties of my top class, but how can i apply this to loop through all sub classes and get there vars and props?
VB XML Classes Vs String Classes?
Oct 13, 2011Searching the internet finds no less than 700 different ways and opinions to accomplish what I'm trying to do, and I would just like to know the simplest, most bullet-proof way possible.
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I simply want to extract the string "bar," which is inside <hostName></hostName>I can do this easily enough with simple string functions, but I'd like to do it with one of the .NET XML classes/methods.
Find Documentation For "Microsoft Internet Controls", "HTML Object Library"?
Sep 23, 2009I have been writing VBA code for MS Access for years, but am starting my first project that will need to retrieve data from the Internet. I have come across code samples that use "Microsoft Internet Controls" and "Microsoft HTML Object Library", and I can make them available references in VBA, and available methods and fields etc. show when writing code, but I cannot find any documentation for these APIs. Does it come with MS Office on the CDs (if so, where?), or is it available over the Internet somewhere?
View 2 RepliesBest Pratice In Inheritance - Three Classes Employee, Manager And Salesman. Manager And Salesman Classes Inherits Employee Class
Jul 27, 2010I have three classes Employee, Manager and Salesman. Manager and Salesman classes inherits Employee class.
Employee :
Public MustInherit Class Employee
' Field data.
Protected empName As String
Protected empID As Integer
Protected currPay As Single
[CODE]...
Manager :
Public Class Manager
Inherits Employee
[CODE]...
Salesman :
Public Class Salesman
Inherits Employee
[CODE]...
Now I have created a object of salesman and manager using the following code:
Dim objSalesMan as Employee=new Salesman("xyz",1,2000,5000)
Dim objManager as Employee=new Manager("abx",2,5000,"production")
Is this a good programming pratice or should I use:
Dim objSalesMan as new Salesman("xyz",1,2000,5000)
Dim objManager as new Manager("abx",2,5000,"production")
Accessing The Click Event In Layered Controls Or When Multiple Controls Are Docked Within Each Other?
May 22, 2009I wanted to know if anyone could tell me how to access the Click_event.I have a boarderles form with a panel control which has the Dock property set to fill and on the panel I have placed a Label also with the Dock property set to fill. I also have a timer running.How can I get code to execute in the Label1 click event.I've tried doing it by using the generic Click_event and also with two variations of the Click_event Handles parameters
'Alternativ 1:
Private Sub Form1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
[code].....
Manage A Large Number Of Similar Controls In A User Interface (such As Button Or TextBox Controls)
Aug 23, 2011There is newer code in a follow up post. I suggest using the code in the later post rather than the code in this one. You can still read this post though. When designing a user interface, one should be conscious of how many individual controls are required to implement the functionality. In some cases an initial design may begin with many buttons or textboxes (for example) but then further review of
the actual required functionality allows for a reduction in the number of unique controls.
But other times, there isn't a better way (which will still make sense to the user of the application) then to have a series of many repeated controls. So in the cases where one can be certain that the best UI implementation for an application will require the use of multiple copies of a given control, then it often becomes necessary to maintain some method of managing all of those controls at various points
throughout the application. Doing so typically requires that one build up some collection of controls which can then be accessed by index in order to work with any given control; but this can lead to a lot of clutter in the code file which handles these control's events. For instance there will be some kind of collection declaration, some recursive routine to find all of the controls of interest, and then any number of event handler methods with long lists of Handles clauses, or additional code loops to wire up the event handling for each control.
Purpose Since most of this functionality could be considered a requirement regardless of the type of control being managed, or its required functionality, it may make sense to wrap all of the control management functionality into a single class. And since our first requirement is a collection of controls, then a base collection class could be the perfect starting point for our control manager. There are a number of existing thread around this topic, with some recent (at the time of this writing) ones being:[URL]..In this, and related, threads I have posted examples of a simple TextBoxManager and ButtonManager control. But again, with so much similar functionality required regardless of the control being managed, it would be technically possible to create a generic ControlManager(Of T As Control) class which can manage any type of control.
[Code]...
So in summary, one can facilitate managing a large number of user interface controls by building a "control manager" class which both encapsulates the list of control instances, and deals with adding and removing defined event handlers for every control it manages. The generic control manager class itself can be inherited and extended into a more specific class on a per-application basis in order to provide more application-specific functionality. Reed Kimble - "When you do things right, people won't be sure you've done anything at all"