I took over a project for another individual. He has created a variety of custom controls (which I have no experience with). So one of these controls is displayed as a combo box. (It is called ctlTechnician). There are 4 items on the dropdown list. What I am trying to do is to set the selected index to -1 (along with other things) when the user logs off so that the control is back to its original state.[code]....
View 2 Replieshow to specify a custom icon for display in the toolbox window when you create your own custom control? Something other than the dreaded "gearbox" icon.
View 2 RepliesI have an ASPX Custom Control which is supposed to load it's properties into an internal collection (defined with PersistenceMode.InnerProperty). Here's the ASPX
<cc:CustomControl runat="server">
<Queries>
<cc:QueryTypeOne ... />
[code]...
I am using custom textboxes and I need to be able to set the Text on txb1 based on the Text of txb2. I have simplied my code to the following:
Public Class customtextbox
Inherits TextBox
Public Event ControlReset()
[Code]....
So, when txb1 looses focus, if its Text is "fried", then it sets off txb2's ProcessAlert function. I had tried to change the value of txb2 Text in ProcessAlert function, but didnt work, so I tried to get it to raise an event instead, which then tries to set the Text property. However I still cant set txb2's Text property. The Text property seems to be set for the duration of the "life" of the Event handler. When I step through the forms controls within the Event handler, the changed Text value is there, but not outside of the Event handler.
how to clear the datetimepicker control?
View 1 RepliesI am using web browser control in one of my forms for displaying html files (local files). Before I load the next file I want to clear the webbrowser control of the previous page. I am trying the following method which I found while searching the net.
private Sub ClearWebBrowser(ByVal wb As WebBrowser)
Dim tempDoc As IHTMLDocument2 = CType(wb.Document.DomDocument, IHTMLDocument2)
tempDoc.write("")
tempDoc.close()
End Sub
I have added the reference for mshtml namespace in com tab. When trying to run the program, error is thrown like "Type 'IHTMLDocument2' is not defined. (BC30002)".
In my userform I have a WebBrowser control to load PDF files. I have added a FolderBrowserDialog to allow user selection of drives and or folders.
What I am trying to do now is after a file has been selected and viewed, the user may want to change drives and or folder locations. How do I remove the current contents of the WebBrowser control to be a blank screen (just like when the app starts, its blank).
I've created my own ascx control with button inside it. Now I'm using this control inside other control. (In my case it is a webpart). What I would like to do is program button.click logic from my custom control inside webpart
View 4 RepliesI'm having trouble with visual basic 2010 since this is my first project, I'm assigned to design a control database that allow me to add, insert, remove, clear and close I designed a software but there are quite a lot of problems in it so I need fixing these problems.
View 5 RepliesCan a custom control NEW Sub be the only one that executes when Inheriting from an existing control please?I am Inheriting from TabControl and I do not want the base New Sub called, is this possible?In other words, I do not want TabPage1 and TabPage2 to be added.A Form has an Activated Sub which runs once a Form is activated.It is a pity that Microsoft have not got such a method in the baseControl Class otherwise I could have used it within a custom TabControl.
Public Class Form1
Private Sub Form1_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Activated
End Sub
[code]....
We have a ASP.NET web application written in VB.NET where we build content programmatically during the Init event.We make extensive use of user controls, building them on the fly, and I now want to start including SilverLight content.Is there an easy way of embedding a SilverLight application in a control, and then instantiating the whole thing in code, in the same way as you'd programmatically add ordinary ASP.NET controls to a page?The SilverLight component itself works fine when added to a page using the <object> tag but I really want to be able to reuse it elsewhere in code.Since I'm expecting use of SilverLight to increase in our application, and the asp:Silverlight control seems now to be deprecated, I'm looking for an alternative way of wrapping the content.
View 1 RepliesWhat I've done is create a User Control Library (Project) and I've added a single User Control to that project. The control contains a single FlowLayoutPanel, and I created a Property on the control itself to pass the FlowDirection from the Control to its FlowLayoutPanel child.
Build, reference, component appears in the Toolbox and everything works fine, but the property on the control does not appear in the Properties window when I go to edit it at design time.
I trying to fade-in the application startup form using the forms opacity and a timer control.I dont know if I am using the right approch to achieve this so suggestions for alternatativ approches are welcome.I have a form with a few randomly select controls on it, one of which is a textbox.When I run the code, the form and all its controls reflect the changes to the form opacity property set through the timer_tick event except the textbox.The textbox remains clear all the time and I would like to know: Why?[code].....
View 8 Repliesthis is currently my code to clear my 5 textboxes
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
TextBox1.Clear()
TextBox2.Clear()
TextBox3.Clear()
TextBox4.Clear()
TextBox5.Clear()
End Sub
I have a timer that runs every time by itself, and for the code the runs in it I would like to have it clear the dataset before it does anything, the timer runs every 10 seconds, so I tried to do dataset.clear but it would crash if the dataset had no values
View 4 RepliesI want to understand N-tier architecture like when to use and so on.Also I would like to know about user control and custom control.
View 4 Repliesin hyper teriminal when i press "ctrl+L" is to clear terminal screen how to write the code in vb.net? Hyperterminal is connecting to serial comport.when i try this it work and return line on debug
serialport.writeline ("at+cmgl=1")
i try this but not work and it still show some lines on debug
serialport.writeline (vbcrtl +"L")
serialport.WriteLine("vbCrLf + l")
I am trying to make a listview custom control based on the standard listview control that will allow me to drag a column header outside the standard listview control and drop it on a panel. I plan to use the drop event to determine which column I should group by view on.
View 2 Replies[URL]I tried dragging it but it didn't work. I'm not used to the IDE. Also, how would I make that control at runtime and place it on the form I understand you would do
PHP Code:
Dim myAccount as new TAccount
But how do I display it on the form?
I want to create a custom control in a dll file.
I can make this without a dll file, also inside a normal project, making a class for it and inheriting the desired base control class, compiling the project and the toolbox has the custom control.
But now I want to make it in a separate file, in a dll file. I use vb express 2008.
I start a new class library project, add the reference System.Windows.Forms to the project and add this code (this is only an example):
Inherits System.Windows.Forms.Button
Private Sub New()
Me.Backcolor=Color.Red
End Sub
I compile the project and get the dll file. Then I add this file to the toolbox, but I get the error message: "this control has no components."
I'm trying to play with this: [URL]..I have no clue how to use it though.What i THOUGHT i had to do was open the project and "build" it to produce a .dll or something which i would then add as a reference in my new project. I'm unable to open the solution so i could not test this theory.
View 6 RepliesIm trying to add a custom combobox to the database, the problem is i cant figure out how to do it. This combobox has images in it, i had to find the code to put the images in it cause the .net framework does not support icon's in combobox's. here is the code i found, cant remember where i got it, i think from code project.
Spoiler
Public Class ComboIcon
Inherits ComboBox
[Code].....
I have created a custom class, which contains a panel and a label on it. I added to this class a pcaption property, which holds the label text. This property is browsable and I can change its value.But when I drag the custom control to the form and change the pcaption property, it has no effect. Even the <Defaultvalue> has no effect. Why?
Here is the class code:
Imports System.ComponentModel
Public Class mypanel
Inherits Windows.Forms.Panel
Private panelcaption As String
[code]....
Color values are unimportant, you can change it.
I have created 2 WPF control which reside in the same folder and i want to add one control to the other.
The controls are added in a Win Forms project.
the thing is that in a custom Win Forms control I can see my two WPF controls in the toolbox but in the WPF designer I cannot see any WPF controls.[code]...
Is this possible? I am trying to create my own "X" and "minimize" buttons on my form -- the only way that I can currently think to do it is by making my form have no border, and creating a 'fake' menu bar using labels and buttons for minimizing and maximizing. The goal here is to be able to have custom icons for maximize, close, etc that may not match the Windows default scheme.
View 1 Replieswant to create a custom control of the button such as the button will be a bit enlarged and with a different colour.A custom control is a class that either inherits the Control class directly or some other control.So Iadded class named class1.vb and added this line:Inherits System.Windows.Forms.Button
View 6 RepliesI know how to create custom controls with all sorts of properties, but I cannot get a collection property to work
View 3 RepliesI looking for someone who are familar with custom control. I want to create two panels and the splitterbar to have a button in it where i can click to expandablecollaspe on either of the panels. I tried to use splitContainer where I can resize between the two panels and expandablecollaspe them, but I can't make the button on the splitterbar.
View 3 RepliesThis is purely academic-- I'm looking for an example of a custom control, created from scratch as in not built out of existing controls, you're actually handling drawing it, ect entirely yourself.
View 4 RepliesI have a custom controll that is created at runtime this contol has several lables and list boxes. I want the user to move the controls from one panel to another. an not find the cirrect wat to impliment e.Data.GetDataPresent(DataFormats.???)
View 1 Replies