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 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 RepliesI 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 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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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()
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I 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?
I am developing an application which created a series of labels using code such as this below[code]...
View 3 RepliesI am passing some values from a Gridview Update Click event to a popup ASP.net page that dynamically builds a series of textboxes in a Placeholder based on the number of sentences that are found in a specific cell of the Grid Row selected.The boxes that are built represent each sentence found in the cell of the selected row. Each sentence is presented for translation, where user enters data into a 2nd dynamically generated textbox.This all works great.Now I have a Listbox beside the 2nd textbox, which sometimes has 1 or more variables that need to placed into the translated sentence. I have set up a Hover menu over the listbox so that I can select the variable and insert it at the end of the sentence in the 2nd textbox. My problem is generating the click event on the dynamically created Listbox. Something like....
Protected Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
TextBox1.Text = TextBox1.Text & ListBox1.SelectedValue
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I'm trying to create a page dynamically, but I falling at the first herdle. I have create the below after reading may blogs/post/articles. The problem I have is when I click the first buttons I created nothing happend, if I then click it again it works.Can any one tell me where I'm going wrong?
ASP Page:
<%@ Page Title="Create / Amend Quotes" Language="vb" AutoEventWireup="false" CodeBehind="Quote.aspx.vb" Inherits="BIS.Quote" %>
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I can usually find the answers to most of my questions via the Google Gods, but not this time.I have a form that has a TabPageControl and on that page a collection of labels and text boxes via a usercontrol.
On the form I have a button that allows the user to create a new tabpage, when the code adds a new page, it automatically adds the UserControl collection. I can't get my head around how to access the objects on the newly created tabpage.
What I need to be able todo is take the index of the tabpage that has focus and translate that against the UerContol name, but I havn't a clue how to do it!
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I am adding a grid of buttons to a form at run-time, and all of then use the same Handler.My question is : Is there any way I canadd the TextBox at run-time ?I know how to but without it on the form, the IDE isn't very happy about the "MyClick" Sub - TextBox1 is not declared......
' some logic here to make nice rows and Columns of buttons
' with different .Text and .Name
Me.Controls.Add(btn)
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I have this code.
Code:
Public Class Form1
Dim NPB As Button
Dim x As Integer
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As you can see, when I open a program from my menu, a new button will be created with text similar to this, "C:Program ". The button it self will not do anything. How can I create the method at the same time the button it is for is created? Also how can I change the text do that it gives me, for example, CCleaner.exe instead of the whole target path?
I'm new to VB (and .net), just started taking an introductory class. One of the things we've done is set up a little form that does basic math. It looks something like this:
Code:
[txt1] = [txt1mod1] + [txt1mod2] [btn1]
[txt2] = [txt2mod1] - [txt2mod2] [btn2]
[txt3] = [txt3mod1] * [txt3mod2] [btn3]
[txt4] = [txt4mod1] / [txt4mod2] [btn4]
When you click btn1, it adds the values txt1mod1 and txt1mod2 and displays the answer in txt1. The same happens for buttons 2, 3, 4 on their respective lines. So the way we handle this is to have four subprocedures that handle the button clicks, one for each button. I was thinking it would make more sense to have one function handle all of the button clicks, since it's basically the same thing. Through my own research I've learned you can have multiple events call one procedure like so:
Private Sub btn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn1.Click, btn2.Click, btn3.Click, btn4.Click
'stuff
End Sub
But how do I determine which of the four buttons was clicked, and which text box values the user cares about? Then after doing so, how do I reference the relevant controls (txt[x]mod1, txt[x]mod2, txt[x])?
Code:
Dim b As Button = CType(sender, Button)
Dim t As String = b.Tag.ToString
But it gets a little fuzzy after that because I can't figure out how to reference the controls using the tags. I don't even know if I'm going down the right path. I can, for example, set some string to
Code:
strBox1 = String.Concat("txt",t,"mod1") 'string is "txt1mod1" for example
but trying to reference the control
Code:
...strBox1.Text...
gives me errors that, "Text is not a member of String."
Well, I don't know if this is correct or not, but it seems to work if I use "Controls()":
Code:
'if t = 1
Dim a As String = Controls(String.Concat("txt",t,"mod1")).Text 'value of txt1mod1
Dim b As String = Controls(String.Concat("txt",t,"mod1")).Text 'value of txt1mod2
Dim s As Integer = CInt(a) + CInt(b) 'im actually determing the operand elsewhere
Controls(String.Concat("txt",t)).Text = s.ToString
this is what i have so far:
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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 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 have a UserControl.ascx which essentially outputs the Name and Email of the user currently logged in (stored in session variables, for the record) at the top of every page on my website. Said control is currently called by Site.Master using <%Html.RenderPartial("UserControl")%>.
It works fine when I log in for the first time and my details are displayed correctly, but when I log out and try to log in again something strange happens...
The Control itself tests the condition Session("auth"), which my controller sets to true upon authenticating a user and which it forces to false when the logout button is pressed. All session variables are cleared upon logging out.
(For the record, my user control used to check Request.IsAuthenticated rather than Session("auth") to determine the current Session State. The same issue arised.)
The problem is that when I try to log in as a different user, instead of showing the new user's information in the header, nothing appears beside Name: and Email: (see code below). I suspect this is because UserControl.ascx is not updating its state.
Ideally, I'd like a solution which would force UserControl to check Session variables every time a page is loaded. Is there a clean way to achieve this?
<%@ Control Language="VB" AutoEventWireup = "false" Inherits="System.Web.Mvc.ViewUserControl" %>
<%-- The following line works around an ASP.NET compiler warning --%>
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I have code that reads file paths froma text file into my application for an mru list on my apps main menu. The menuitems are added programatically from each line of the text file. How can i attach events to these menu items?
View 1 RepliesI'm trying to find out how (if it's possible) you can control a button in a dialog dynamically. What I am trying to do is a lot to write, so I am going to use a simple example to get my message across. Here is an example:
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I've been working at this for hours, and I'm completely stumped. There may be a more elegant way to do what I want, but I can't find it in my reference books or online. I have a form that has 64 labels corresponding to 64 unique locations on a map. Each of the labels contains one character, a ●. The program determines, randomly, if these is something in those locations.'m using a For... next loop to step through each location and determine if there is something there.My question is how do I turn off the label in the form without resorting to some 64 choice Select Case statement (or something similar).
View 5 RepliesI have a project setup, where depending on a certain variable one of two controls will be used. Either the default webbrowser or the gecko control. Now I can load either one fine dynamically but I can't work out how to use either one depending on a variable result.To load the one I know I want is easy enough..
Code:
Private WithEvents wb As Skybound.Gecko.GeckoWebBrowser
wb = New Skybound.Gecko.GeckoWebBrowser()
Me.Controls.Add(wb)
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I want my webbrowser to be called wb as I already have all the event handlers written.
Okay, so I have some problems with dynamically added pictureboxes. This is the code I have now. When I click on one of the imageboxes, I get teh following error: Index was outside the bounds of the array.
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i know a way to play mp3 files, which is to go toolbox and add the msdx.ocx file. however is there anyway i could dynamically create an object that plays media files (other than .wavs)
View 15 RepliesI've created a new tabpage and also added a richtextbox to it:
Private Sub AddTab(ByVal ctrl As TabControl, _
ByVal text As String)
If Me.InvokeRequired Then
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I know the name is rigth cause I have printed the name in the create method and I have printed the name string in the code where I try to access it.
So by the looks of it it seems .Item() is not the right way to access the control.
So how to access to dynamically created control?
Private Sub TextBox1_() Handles TextBox1.MouseDoubleClick
TextBox1.Height += 15
End Sub
Private Sub TextBox1_TextChanged() Handles TextBox1.MouseWheel
TextBox1.Height -= 15
This code seems to work ok for dynamically controlling a textbox height. Would like to know if there is a way to have the textbox height auto size to accommodate each entry. Autosize does not appear to be a property of textbox.