VS 2008 Adding A New Method To A Custom Control Found
Feb 25, 2010
I found a custom ListBox that, strangely doesn't have an InsertAt method and I would like to add one. The custom ListBox uses an object instead of just a list of strings like a normal ListBox. I was curious what the logic behind inserting a new item at a particular index would be.The only thing I could come up with was add the new ListBoxItem at the end, then using the specified index, I could either keep moving ListBoxItem objects to the bottom, with the Add() method, from that index till the ListBoxItem at that index equals the one added, or I could use that index number in a "calculation" till I know I've moved the correct number of objects.
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Aug 29, 2011
I want to create a custom control (let say textbox), after build, when I place that custom control on a form, all the properties for the default textbox are available.
1- How to Hide them and only show the wanted property and method?
2- Is there a Wizard or custom tool for creating custom control or I had to do every thing by coding?
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Jun 19, 2012
Is it possible to have a custom control (inherits from Control) and add sub-controls to it (like, a label for example)? Basically I want a composite control. I know controls can contain other controls, but if I try to add a control to MyBase.Controls, this doesn't work because that's readonly.
[Code]...
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Nov 17, 2011
[Code] I have a panel as the base of my custom control and I am adding other panels to it, along with a flow layout panel(myInnerContainer). I know the code above isn't going to work because when I try to add the regular panels to the main control, they will attempt to be added to the flow layout panel myInnerContainer, and cause a circular error. [Code] but intellisense doesn't display anything which leads me in the correct direction for adding only the buttons to the flow layout panel (myInnerContainer).
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Jun 27, 2012
I have seen that BindableAttribute is used to decorate public properties in custom controls. MSDN briefly mentions that it provides the ability to control the binding direction and whether binding is supported at design time.
public class MyControl : Panel
{
[Bindable(BindableSupport.No, BindingDirection.OneWay)]
public string MyString { get; set; }
[code]....
1) I set BindableSupport to No, however I could still do this in markup (.aspx).What does BindableSupport affect then? Does it hide the property in the toolbox?
<cc:MyControl runat="server" MyString="something" />
2) How does one-way binding and two-way binding work in the context of custom controls and ASP.NET?
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Oct 23, 2009
There is a response to this question using C# - I am looking for a VB answer and the C# code is too deep for me. I have a custom user control and I have a toolstrip on it. I have certain default buttons on the toolstrip, but I want the user to be able to add additional buttons at design time. I exposed the Toolstrip.Items collection in a public property. I can open the collections editor in design time, but I cannot edit the collection.
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Feb 3, 2009
(using vb.net) On our intranet site we have an app that loads customer or vendor information and then allows the users to edit info and add/update/delete contacts. I'm not sure what really changed to this program lately, but I keep getting this error:
Method not found: 'Int16 DBLayer.DBTools.ExecuteNonQuery(System.String, DB)'.
This occurs when i try editing any customer info and the vendor contacts, but the program works when I try editing the vendor info/addy. Here's the program code. There's a seperate program on our webserver that contains the classes used. Here's the main code that calls the classes:
TO ADD CONTACT
M2MInterface.M2M.Customers.AddContact(Session("CustVendID"), txtFName.Text.ToUpper.Trim, txtLName.Text.ToUpper.Trim, Tools.RemovePhoneNumberFormat(Phone), Tools.RemovePhoneNumberFormat(Fax), txtEMail.Text, txtNotes.Text, False)
TO UPDATE CONTACT
[code].....
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Jul 30, 2010
1. I have a DataGridView box, that is connected to a MySQL database via the 'Data Source'. I am trying to do the datagridview1.rows.add("info here"), however i receive an error i cannot do this programmatically. I DO know the code to post to MySQL via the "insert into" la la la.However, I was curious if I can do this via the datagridview a bit..easier/simpler, such as a "datagridview1.rows.add(stuff)" sorta thing.
2. I am attempting to make a custom control, and as with ANY control, they have their.. settings. Example, a textbox, or label, has so you can set the Text. and color, etc.Others, have it (such as datagridview) have the little icon on the control itself, where you click it, and it opens a small window with settings.
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Apr 27, 2011
I have a user control that checks if a certain query string and session value are present then returns a boolean based on that, if it's true I want to set the master page. The page is throwing an Object reference exception when it tries to call the method EditUser1.UserAuthorization(). Why is this happening? I imagine that the method doesn't exist at that point in the stack. Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
[Code]...
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Sep 16, 2009
I have created a custom control that has a few labels and a button on it. In my main program i dyanmically add this control to a stackpanel. When i add the control i add a few events for it by doing th e following:
Dim newqueue As New UserControl1
AddHandler newqueue.MouseDoubleClick, AddressOf PrintMessage
How would i go about adding an event for the button.click for the button in the custom control?
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Nov 11, 2010
I am trying to use a simple LINQ to Objects query.When I try to run my application I get the message:
System.InvalidOperationException was unhandled Message="An error occurred creating the form. See Exception.InnerException for details. The error is: Method not found: 'Void sharatTashlumimWS.paymentDetailsManager.set_ReleaseDate(System.DateTime)'."
Source="WindowsApplication1"
StackTrace:
[Code]...
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Aug 3, 2009
I am getting a
"Method not found: 'Boolean MyCompany.LibraryAssembly.SomeFunction (System.String)'"
Exception/error when running a VB.NET console application. The method is part of an external assembly and it is definitely in the assembly. The error only occurs at runtime when I go to enter the function that calls the method. I have the assembly referenced by my project and I am not copying it locally. Intellisense shows no errors, and neither does the compiler. I am loading the assembly statically not dynamically. I reference the from a local folder (not the GAC) although the same version is also available from the GAC.
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Jan 2, 2012
I am getting an error when I try and run my service. I made sure everything in the project is VB .NET 2.0.This service used to work, but we have been making code updates... I did some research but I do not see anything relevant. Does this error mean that my function cause the issue? Or is it the List that is the issue?
[Code]...
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Apr 25, 2011
I have:
Namespace Model.Object.Interface.Object
Public Interface IObject
Property Id As Integer
Property Id_Parent As Integer
Property Name As String
[code].....
Why throw this exception? How to fix?
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Mar 17, 2012
Private Sub setView()
With lvwLogs
.AllowColumnReorder = True
.FullRowSelect = True
.GridLines = True
[code]...
I am getting the same compile error for the forms with setview. I am thinking it concerns with listview. It highlights the public sub setview().
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Nov 6, 2011
I'm making a notepad and i added find method to find the string and i programed the code but when i search some string in the text box the found string not be shown until i will scroll the text box to see it
it's not auto select or auto go to found text
so how can i do this and my code is Imports System.Text.RegularExpressions
[Code]...
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Jan 4, 2011
I am trying to read all selected items from a listbox in Visual Basic.
Dim x As Integer
Dim testValue As String
testValue = "20"
[code]....
is the code I am trying. But When I run the code, I am getting "Compile error : Method or data member not found" I guess I am missing some references to use "ListBox.Items" method right?What is the required references/library.
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Apr 18, 2012
When I start my application I get the following error:
method not found microsoft.visualbasic.msgboxresult
I have tried repairing my .NET installation.
Note: This error only occurs on one machine. On every other machine it works fine which makes me think something with the .NET assemblies was corrupted. It was working fine on the broken machine a few days ago.
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Jan 18, 2012
I want to open a notepad file using VisualBasic.Interaction.Shell method. At present I get a file not found exception using the following code.
int pid = Interaction.Shell(@"D:abc.txt", AppWinStyle.NormalNoFocus, false, -1);
But this works:
int pid = Interaction.Shell(@"notepad.exe", AppWinStyle.NormalNoFocus, false, -1);
[code].....
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Jan 6, 2010
I know there is a function Contains that returns true if string has a certain substing in it. But is there a function that returns the count of instances of that substring inside another string.
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Oct 4, 2011
I've not really worked with them before, well at all really. How would I go about creating a control which has multiple picture boxes, so then I can access each picturebox and refer to them via custom properties? I'm not aware you can draw several picture boxes and combine them into one control?
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Apr 15, 2009
this forum, I made a custom numeric TextBox that was designed to accept monetary input.
vb.net
Public Class moneyTextBox
[code].....
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Sep 11, 2009
In THIS Thread:NickThissen Said:Quote:It will appear in the toolbox even if you put it in the current project, instead of a control library project.No, it does not have to be in a control library, nor does it have to be a UserControl, to appear in the Toolbox. Any class inheriting (either directly or indirectly) from Control or Component will appear in the Toolbox. Since RadioButton inherits from Control, and your control inherits from RadioButton, your control inherits from Control too, so it will appear in the Toolbox. I have successfully created a pretty cool custom control. I Built the project and have added the a reference to the .dll form a new Windows forms project. It works great, as long as I do something like THIS:
Dim ThisControl As New MyCustomControl
ThisControl.Top = 40
ThisCOntrol.Left = 40
[code]....
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Mar 8, 2010
I have the above control I am using, whose base class is the ListBox.Unlike the ListBox, it doesn't highlight a new item when it is inserted.I already had to add the ability to InsertAt() a new item since the person who made it originally hadn't implemented that part.But, I am having trouble figuring out how to make that part work.The above link is directly to the original Control.Here is the code for the Insert method I added:
Public Sub Insert(ByVal index As Integer, ByVal value As MCListBoxItem)
Try
List.Insert(index, value)
[code].....
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Jan 27, 2010
I have several custom controls inside my project, just added a new class and then inherit the original control. For example i have a Custom DataGridView Control (CustDGV), that defines several properties in the constructor of the control.Now i have one problem and one issue, the problem, if i change the CustDGV i don't know why, the forms that are using the control doesn't update the changes... The only way it's removing and adding it again.. not very useful when i have several event's already defined for the dgv.How do i force the form to update the control?The issue it's that some of the properties doesn't get applied, for example i set the column header height and the disable resizing in the constructor, but if i run the code this two properties doesn't get applied, i need to define them in the form where i use the control to get the results that i expect..The order of the properties in the constructor? The properties in the properties window override the constructor ones?
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Jan 5, 2012
I have a custom control I've created, and I'd like to be able to step through it (either in a test application or the one it's being used in). Is there a way to do this?
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Feb 1, 2010
I have a panel that has 9 pictures boxes within it. I need the User to be able to create as many instances of this control as they like.
Then each control needs to be able to move freely within the form.
I've created the control and added the appropriate code to move it around the control.
I've made the control canvas the same size of the panel. The problem is that when I move the panel, it only moves within the bounds of the control canvas. I guess I could increase the size of the canvas, but then additional controls would still only be able to move within their bounds and it would come out all wrong.
Is there anything I could do about this? Or is there a better method?
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Jan 23, 2009
This relates to WPF but is broad enough that a winform answer will do. I have made a few custom controls in the past by inheriting from whatever particular control I wish to inherent from.
I have noticed that I can add a form to a class/user control library from the add new dialog and have it run. When this application is compiled I get a DLL.
So my question is can I use a Form as a custom control. The reason I ask is I am creating a more advanced MsgBox for a new application I require and a form as its container makes the most sense.
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Jul 23, 2009
I am searching a XML file for <Asset_Number> and then adding all children to DataGridView1, i can search but i dont know how to add item to the DataGridView Also my datagridview columns are created from a txt file
this is what i have.....
this is my XML
<?xml version="1.0" standalone="yes"?>
<DocumentElement>
[Code].....
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Jun 11, 2010
I'm using the following method to move a picture box that is in a 24, 24 panel:[code]This is obviously the worst way of doing this. But, it's the first thing I could think of and Googling has brought me no luck so far.
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