When I try to create an Inherited User Control everything goes fine until I specify the base control and press "Add" in the Inheritance dialog. The code in the newly created Control should have a "Inherited From" statement, but it doesn't and nothing works after that. I even tried following the ctlClocklib project and the same thing happened. ctlAlarmClock.vb was created but the "Inherited From" statement was missing.
View 3 Repliesi created a user control and inherited a textbox.is it possible to remove some of the inherited properties of the user control?like to Multi-Line, PasswordChar etc also at the Form Design, when selecting the user control, there's an arrow on the upper-right which i also want to remove.
View 2 RepliesI'm developing a program with a team in Visual Basic 2010.
What i wanna do is to create a textbox (inherits from textbox) with additional one property called MDIStatusInformation which is used to display a tooltip text in a status bar at main MDI form.
When i use this tag <Browsable(True)> _, the control property not list anything there.
I'm confused regarding the MS examples for inheriting a treenode. I have created the following class to allow an addtion description field on the treenode:-
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View 1 RepliesI am trying to create a new user control. But facing some problems. Following are the steps I am taking.
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Then in another project [windows application project] in solution explorer > references > Add Reference it displayed add reference dialog box In projects dialog box it was supposed to show the above project but it didn't.So I clicked browse There a select component dialog box appeared. In ile of type it showed ( Component Files (*.dll;*.tlb;*.olb,*.ocx;*.exe) )I located folder where project was saved. But it does not show any files (there are some olders )
i'm trying to create a user control.. i placed a textbox and a button in it.. there's also a form in it.. basically this is a DateTimeTextBox control that i'm doing.. i'm able to create the control and add it to my forms but when going to the property at design time, i don't see the Text property and its not on the DataBindings property as well. how do i make use of this property?
View 3 RepliesI am creating an Extended DateTime picker. I have created a Class the inherits the Default DateTimePicker and Adds a new Property NullableValue. I have placed the control on a form and bound it to a Binding Source using the NullableValue Property. When I load the record the control updates as it should. But when I change the value and save it does not save back to the database.
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I've removed the properties completely with a controlDesigner class, but I'm getting warnings + trying to do it properly to remove those warnings.
View 6 Replieshow to create an use control?this link http:[url]....
View 4 RepliesI want to create User Control for vb form application.
View 3 RepliesHow to create custom events for contol. i have created a user control mytextbox & i am showing some properties of textbox & now i want to expose user control events
I am showing Following properties to user
CODE:
How to expose Events
I have created a website that works perfect on my machine but when I posted to the server every thing works but the create user and Login. I know when you run it on your machine it saves users at the Web Site Administration Tool. What do I need to do to make it work on the server.
View 4 RepliesI am making some changes to a fairly old project.It has a DataGrid with an Inherited Class
Public Class CustomDataGridTextBox
Inherits DataGridTextBoxColumn
and a Override Sub Protected Overloads Overrides Sub Paint (.......What it was doing was alternating the Data Grid Line colours New Requirement is to break up some items in the DataGrid By categories So I have added new lines to the data and sorted so they show up ad category headers (Production Stations) And they would like the Category Header to be a different colour and then the alternating line colours to restart.This did not sound too difficult but that has proven a trap Setting the category header is no problem but restarting the alternating colours is Previously the row was determined to be odd or even to set the colour.Now I am intending to use an Integer to define what colour is used but it persists only for that text box.
How can I get it to extend its life so each call can refer to it and update it and set the desired colour?All I need to do is have an integer variable that will hold its value for the next call?
I have a relatively simple question regarding the best way to call the DataGridView.Rows.Add function when it is inherited into the current control. Which is the best way to make the call to the inherited control? Call it directly in the invoke or call it using recursive-like function? They both seem to produce the same result, a row gets added and the quantity is returned, but which is the most efficient?The delegate: Private Delegate Function ReturnDelegate() As Object
The two ways are:
A)
Private Overloads Function AddRow() As Integer
If InvokeRequired Then
Return CInt(Invoke(New ReturnDelegate(AddressOf AddRow)))
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what is the diff between custom control ,inherited controls adn usercontrol in vb.netadil
View 2 RepliesI recently wrote an inherited picturebox control. From within the control inside methodI I call Me.Invalidate to fire the control onpaint event. But onPaint does not fire.
View 2 RepliesI'm trying to create my own control to build a custom planning on it.After trying it with loose controls I got an error but after advice on my previous post, I redraw everything.I have now the header of the control finished, the header shows the days of the month for as many months that fit in the window.Now I want to put the list of data below it, but it will be more than the windows height, so I need to have a scroll bar that will scroll the data but not the header.I would not like to design my own scrollbar and rather use the scrollbar control for it, but when I put it in, I cannot use the NEW keyword.example:
Dim sb
As
ScrollBar
with this I get the error message: 'New' cannot be used on a class that is declared 'MustInherit'.How can I get a scrollbar on my form to scroll the list only (so not the header)?
I'm trying to create a generic ListView user control that can be used over and over again in different projects. I've got all the basics done but I want to be able to act on click events in the from not the user control. In other words if someone right clicks on the listview, for example, I want the form to know it and be able to act on it.
View 8 RepliesI have to develop a small app for which I have to create a user control which is intended to be something like a Table View.On Form Load, the user should be asked about the number of rows of columns required on the form.Once the user sets the number of cells, each cell should have a button and a Text Box inside it (grouped together).
View 8 RepliesI am trying to create a vertical progressbar type user control.
I want to be able to set the max / min of the progressbar as well as setting the value
But the thing I want is able to have green at the bottom fading into red up the top like in this image: [URL]
But I don�t know how or where to start.
Is there a custom progressbar I can use?
create a simple control. The control have 1 label and 2 panels with images. The control needs to be clicked, the problem is i can create the click action for the control, i can only use internal click events. how to use it out of the control.
View 5 RepliesI want to create a User-Control that inherits the functionality of a TabContol.
I begin by starting a new project of the type Windows Form Control Library. Next I place a TabControl on the UserControl designer surface and Dock the TabContol to Fill the UserControl.
I go to the code editor for the UserControl and enter the following line of code.
Inherits System.Windows.Form.TabControl
Then I run the program and get an error. Intellisence recommends that I use one of two recomendation. When I accept the recommendation I and try to run the program the problems esculate.
The design-surface is no longer accessable.
I try to comment out the problem lines of code in the UserControl1.Designer.VB file but that doesn't help.
How can I create a UserControl that Inherits the Properties of the TabControl so that the properties of the TabControl are visable in the Properties Window?
I am working on a user control. Embedded in my user control is another user control. All of a sudden while programming some simple stuff I get an "out of memory error message". I can no longer load my project (after reboots etc.). I start a new project, copy the control.vb files into a new project folder.. add then add the control to the new project. Ican view the design and the code of the control. When I attempt to drag the control onto another control in the same project I get an error message
"Failed to create component... 'system.outofmemoryexception. Out of memory".
I've not got any issues with Cross threading but I hate the amount of work involved in sorting cross threading issues out.I thought today that my inherited Listview Control could have built in cross threading capabilities; it would decrease the amount of work on the form, and tidy things up.I've got this to work (EnsureVisible method), BUT I'm a little stuck when it comes to the Items.add below is my example control.
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I frequently use TextBoxes that expect date values. I do a tedious job every time to handle the Validating event. The Validation event ensures that the value is a valid date value according to the current thread's Calendar, and if so, formats the date to "dd-MM-yyyy".
I want a TextBox (e.g. DateTextBox) that automatically runs validation and formats its Text property. All I have to do is dropping it to the form.
I know I should use inheritance; but I do not know where to put the auto-validation code; and I do not know how to save the inherited class as a control in the ToolBox.
I've written my code to implement a new property and to set the content to this default text and grey the text whenever the textbox is empty, and to hide it when the user starts typing. This all works fine at runtime.[code]My question is this : If I place an instance of the control on a form, and set the DefaultText via the properties grid, why doesn't my Property Set code run?I'd expect the control on the form to show my new DefaultText in the control, but instead it remains blank. When I run the form it does display correctly, but just not at design time. I place a breakpoint in the DefaultText set property code and it simply doesn't run.
View 2 RepliesI was looking for a tutorial and i find this
[URL]
but it does not give the sample code for creating a user control with properties, events, methods
complete to create windows user control? that includes creating properties, events, methods? and if it has how to create web user controls better
Is there any way of hiding the tab page headers without having to create a new user control?
View 2 RepliesIn businesslayer, there is a inherited Class Called BaseEdit which contains contractor and base properties. There are about 30 CustomEdit (inheriting classes), all of them has methods "Load","Save" and "Delete". The require for this existing system is to add a readonly user. Possible solutions considering the cost of works:
1) Modify the BaseEdit so all CustomEdit can stay the same. The system will check 'user role' in session by using httpcontext then to accept or reject the user's action.
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