Is there a way in which a case statement can be constructed to call, activate or triger a button control? If not, is there a way any statement can be created to activate a butt non control?
View 2 Replieshow do i activate a textbox in the webbrowser control? I have this code to navigate to the webpage but it does send the keys since the textbox in the webbrowser is not activated:
View 1 RepliesHow can I activate a spell checker for my Webbrowser control?
View 1 RepliesI have written a programm with visual basic 2008 express edition and I'd like to use the parallel port to communicate with my self-made circuit. I want to controll 120 LEDs with the parallel port but I don't get it how. I know how to activate the databus but not how to activate the control lines of the parallel port.
View 3 RepliesIn my old VB6 programs I use control events like Keydown to activate code. The code is the same for all text controls. However, I am hoping that there is a efficient way of handing this in VB.net. Using VB2010.
Private Sub txtField1_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtField1.KeyDown
ButtonState2()
End Sub
Private Sub txtField2_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtField2.KeyDown
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MSDN brings nothing up, so here was my attempt at a work around.
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Because event leave calls another sub i need the last active control. I have the textbox name txtTime{0} but obviously string is not a control.
So Two questions:
1) can a string value be attached to an existing control if i know it's name? Dim attControl as Control = newTime
2) All this could be avoided in event leave if i could get the left controls name. I have tried sender. tostring etc but nothing returns the textboxs name
I need to call this function saveBase from more than one place so i decided to send a number in variable x to know of what type to create the object named Model. however when it's within the if statemet i keep getting the error that model is not declared ![code]...
View 6 RepliesI have some variable that when divided I get this symbol: -1.#IND when you look at the variable in debug. This only happens when I put the equation in the Dim statement.
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I don't have a problem. Why when I put the equation up in the declaration area it sets it to -1.#IND (I assume this is infinite or NAN or some such). I'm curious as this is the only time I've had difficulty with this.
I am trying to input specific information on a form.I have created an sql statement from a table that will out put 18 rows of data.I have opened a recordset and instituted a do until loop.I need for the program to look at each row and if the Standard Score = the value of a field I have on the form it takes the value of the other three columns in updates it on the form.I have created the code and it works for upto 3 (Do Until loops)records, but when I try to add a 4th in the SQL statement and put in another do loop my computer runs it but it acts as if it freezes up. [code]
View 3 RepliesI just started in VB, I have created select...case statement to do some input validation.
Everything apart from the works. Its an extended ASCII character, can this be the cause?
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I have an application that dynamically creates winforms.
Dim NewS As New Form
Dim NewT as new Timer
NewT.Interval = 5000
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I am adding some controls to a panel at run-time. After I add them I need to loop through the panel in a different sub and test for a specific control. I was assuming that if I named the variable that the control is set to to "a", that I could then test for this by saying
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I have an application that dynamically creates winforms.
Dim NewS As New Form
Dim NewT as new Timer
NewT.Interval = 5000
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I have created two dynamic objects in my project; one being a button and the other a listview. I have added addHandlers to the button so that I can print out information from the listview. The problem is I don't know how to access the listview through the button_click Sub.[code]...
View 3 Repliesthis is what i have so far:
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I have a strange behavior with a dynamically created TextBox-Control. The control is created in the handler of the Load-event of a dialog-form like this:
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Now the situation is, that in most cases it works fine. But a few of my customers report that the TextBox not appears on their dialog - it's not there! That's all, nothing more to say.hints or reports about known pitfalls with dynamically created controls which could explain this (sometimes) strange behavior and how I could fix it (I have to create this control dynamically due to some reasons).
BTW: The program is built with Visual Basic 2005. And the customers with trouble are spread about the OS's (XP, Vista, 7).
I am trying to embed an activex control (.ocx) created using VB6.0. It's a bare bones usercontrol with no extra code, just for testing purposes. But when I embed this control in one of our windows forms in our legacy development environment (Gupta Centura V3.1), running as an MDI child in an MDI context, the main menu bar of our runtime MDI disappears.
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i been trying to figure out how to get the control name and other properties of a dynamically created control. I have actually dynamically created a label andnamed it. how do i retrieve its name and other properties.?
View 3 RepliesI'm writing a program that inserts controls onto a webform dynamically. Depending on a variable, I add either a textbox, a set of radio buttons, or a set of checkboxes. Later, after a user clicks a submit button I need to use the controls to determine if the user is submitting the correct answer, but when I try to reference the id of a control, I get "txtAnser is not declared. It may be inaccessible due to it's protections level. Here is the .aspx page (it's the standard content page of a master page):
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I have created an animated button using Microsoft Blend 2I want to use it in my Vb.net windows application
View 3 RepliesI have create a small routine to Generate Tabpages on a tabcontrol, and on each tabpage I have Created a label and a combobox, my problem is that since Im generating them in the code and the name of the two controls change based on an index.. ie. Combobox.name = "cmb" + Index I need to be able to retrieve the selected item from this combobox in order to move on to my next routine.. but I do not know how to reference these comboboxs since there is no pre or defined named for them.
View 4 RepliesI show a waiting form (saying "Please wait...") on a different thread when there is long-running code in some forms (for example, during data loading). I show the form like this:
m_PopProcessingThread = New Thread(New ThreadStart(
Sub()
m_PopProcessingForm = New WaitingForm(m_Message)
Application.Run(m_PopProcessingForm)
End Sub))
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The stack trace points to the part of code where I hide the form. How could the handle not have been created, when just before the Invoke call, I loop until said handle is created?
I have a document with VBA controls in it that I created in MS Word 2003. After migrating to MS Word 2007, I get the message that "Can't exit design mode because control 'lblEmaillist' can not be created".
After reading through the various forums here and on microsoft.com it seems to be a known problem. I looked at these articles but am still having a bit of trouble...
[URL] refers to the same problem in word 2000 but after following the directions I still am getting the problem.
The problem does not occur when I open the document in MS Word 2007 or MS Word 2003. The problem only occurs when I open click on the link from IE.
I've set up the location as a trusted location in Office 2007 settings so that should not be an issue.
The document in question is being saved in the word 97-2003 format due to the fact that some people here have not upgraded to office 2007. I tried saving it as a .docm for office 2007 but the error message still came up.
Using a module in my project, I added Drag & Drop functionality to the picture boxes on my form.
View 3 RepliesI'm having a problem with a Web Control that is dynamically created and inserted in my page. I create a couple of LinkButtons, depending on the data of the search that was made, and I'm trying to add an Event Handler to each of the Buttons, so it would filter the result. The controls are initialized properly, but the event is never fired.
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
Controls.Clear()
[code].....
But why can't I figure out how to get one of any number of created WebBrowser controls to navigate to a website?I have a FORM a BUTTON and TWO TEXTBOX controls at design time. I run the program and it creates a random number of WEBBROWSER controls named WebBrowser1 to WebBrowser whatever.textbox1.text = a number, 1 - max number of created webbrowsers, determined in whatever way it is. but what if textbox1.text could equal 35, or 1, or whatever. HOW DO I REFERENCE IT'S ASSOCIATED WEBBROWSER CONTROL?!?!?I've spent a few hours researching this and I find page after page on creating controls, but I can't change the data of a control determined at run time, and I can't find how to anywhere.
View 3 RepliesI created controls whith the mouseclick event
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It picks up the left mouse key click but none of the others, what did I do wrong?
User control created in vb.net 2003 can it be used in express edition ?
View 15 RepliesI created a user control with a label and 2 combo boxes, and a public property called ControlDataSource that accepts a dataset - which it populates the combo boxes with. I added the reference to the VB project I want to use it on and to the toolbox. I was able to draw it on the form with no problem and use it. However, after changing the backcolor on the control and recompiling it, it is no longer seen by the form. When I bring up the form it's used on, I get a white screen with a bunch of xml. The problem seems to be in the designer, and I get an "object reference not set to an instance of an object" error. Here is the code from the designer:
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The reference error is pointing to the line: Me.UcDx1.ControlDataSource = Nothing
Here's the wierd part. If I hover the cursor over that property, it correctly identifies it as a dataset. So it does know what it is, but it can't seem to use it.
I recently made my own custom control, but is there any way to set the default size of the control when it is created?I did a bit of searching and found that I could change the size of the control at runtime with:
vb
Protected Overrides Sub OnHandleCreated(ByVal e As System.EventArgs)
Me.Width = 200
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But the size doesn't update in the design view until I run the program;?