Accessing Multiple Form Controls Using A Variable For The Name?
May 23, 2012
I'm trying to iterate through a group of ComboBoxes and set a property using a concatenated string & variable to represent the name of the control. However, I can't get the instance of the form to recognize the (String & Integer_Variable) as one of its controls -- and so it doesn't recognize any of the appropriate properties or subroutines as members of the System.Windows.Forms.Control.Is there a cleaner way to do this?
For myTempCount = 1 To 6
If tempValue < Me.("ComboBox" & myTempCount).Items.Count Then
ComboBox.SelectedIndex = tempValue 'appears to work -- how?[code].....
This code was originally VBA / VB6, which I put through ArtinSoft's Visual Basic Upgrade Companion (VBUC). FWIW, I'm using Microsoft Visual Basic 2010 Express.
View 3 Replies
ADVERTISEMENT
May 22, 2009
I wanted to know if anyone could tell me how to access the Click_event.I have a boarderles form with a panel control which has the Dock property set to fill and on the panel I have placed a Label also with the Dock property set to fill. I also have a timer running.How can I get code to execute in the Label1 click event.I've tried doing it by using the generic Click_event and also with two variations of the Click_event Handles parameters
'Alternativ 1:
Private Sub Form1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
[code].....
View 16 Replies
Aug 28, 2008
I don't know the best way to use multiple forms in VB, but I have created a problem and I'm not sure where it came from or how to fix it.
Background: I start the program at Sub Main. This is the main function:
Code:
Module modFunctions
Dim frmD As frmDAQ
Dim frmT As frmTrendView
[Code].....
it works, but I don't want to have to change the entire project.
View 1 Replies
Oct 21, 2009
I have to make some automatization on a web server, I use Visual Studio 2005 Visual Basic Windows Console Application. I want to make a load/performance test of the web server, so I open several Internet Explorer instances, and I login the application, that is not a problem. But after that I have a mess on the page and I cannot make any more automatization...The composition of the page after the login is like this: I have the default form, another form and a multiple data window(mdw) controller, which dinamically can switches the forms on this part.
The problem is that I don't know how to access the controls of this mdw forms. I couldn't find much about this mdw controller and I am not an expert.
My code is here:
Imports System
Imports System.Diagnostics
Imports System.Web.Ui.Webcontrols
[Code].....
View 5 Replies
May 26, 2012
I have a module level sub that I use to clear text fields etc on my forms:
CODE:
The problem I have is in the last few lines of code as I'm not really sure how to access the text boxes contained within the tab controls (of which there are many tabs and many text boxes).
This is the closest I've got but I am getting an "option strict on disallows late binding" error on the tabCtl in the following line.
View 6 Replies
Jan 19, 2011
how can i access the controls that i made from another form? i'm also going to also use function (on the same form as the controls) that access that controls?
View 3 Replies
Jan 30, 2011
When I try to access the controls of a form which is not yet created (i.e. to modify the contents of a text box , to press a button etc) , I fail , usually without even an error message . I found out that the only way to make my program go right is to take care that the form is first created before I try to access anything on that form . However this means I must use the Show method to create it and then to Hide it , which leads to an instant awful optical effect . I remember back in VB6 there wasn't such a problem ; it seems that in VB6 each time I accessed a control on a not-created form led to the form being created silently . Is there any way I could do that in .NET too in order to access my precious controls ?
View 15 Replies
Nov 8, 2011
If I have the following ListView, how can I attach a SelectedIndexChanged event listener to the DropDownList so I can perform a command on the respective object? Imagine I have a list of new users and I want to add them to a usergroup by selecting the group from the DropDownList.
<asp:ListView ID="NewUsers" runat="server" DataSourceID="NewUsersSDS" DataKeyNames="ID">
<LayoutTemplate>
[Code].....
View 1 Replies
Aug 26, 2010
When I click a cell or a row in a datagridview I want to be able to open a new form with several textboxes and comboboxes in it and to be able to edit the selected row. The only thing I managed to do so far, was to fill a texbox from the form with the info from the sellected cell using the following code.
Dim
cell As
DataGridViewCell
[Code]....
View 2 Replies
Mar 9, 2011
I have eight NumericUpDown controls in my form, I call them NumericUpDown_1 thru NumericUpdown 8. I first noticed when I set a breakpoint in say NumericUpDown_1 routine and have code inside this routine to manipulate say NumericUpdown_6's value, the code would immediate jump to NumericUpdown_6 routine because the value changed. This makes sense since the handler fires due to the default handler - numericUpDown_valuechanges. But I do not want this to happen so I removed the handlers for all NumericUpdownX routines, one thru eight and instead I use "addhandler" and "removehandler" statements inside the individual routines to "mask off" this problem every time I change a numericUpDown.Value that is not in it's own routine.
My problem is this does not work. What I found is if I use removehandler numericUPDown_x.valuechange addressof numericUpdown_valuechange statement the coding would work however when I'm done in that routine I follow up with addhandler numericUpDown... statement and I'm back to the same problem. A different numericUpDown routine will fire because I changed it's value in another routine but I had the handler removed before I changed it's value so I don't understand. It's almost like it remembered that it's value changed as soon as I turned back on the handler using addhandler. I'm working with Visual Basic 2010.
View 13 Replies
Jul 18, 2009
Im currently working on a project using VS2008. One of the features of this applications is to enable the user to change the theme either buy selecting preset ones or defining there own. The themes used in this application are not the default windows ones. I basically created my own window, titlebar etc... with the use of panels and removed teh windows form borders. So its basically coloring the controls on the form. At the moment the theme information is stored in a "txt" file and when the application loads, it applies the theme to the current form. However, there is more than 1 form within this application. I dont want to write many lines of code to apply certain design/appearance properties to every control in the form. So is there a way to apply settings to a group of controls?
EG: Make all textboxes BackColor Blue
My application also has widgets. All widgets are panels with their names prefixed as "Pnl_WIDGET". Is there also a way to set propeties to all panles with the name beginning with "Pnl_WIDGET"?
View 2 Replies
Oct 1, 2010
How would I go about doing multiple layers on a form?Say the first layer contains a command button that when its click, it changes to the second layer hiding the command button and showing the controls on the second layer?
View 6 Replies
Jun 2, 2011
Still using VS 2005. My concept is to use the same form space to display different "pages", like a "wizard" where you click the [Next] button, and the current UI disappears and a new UI appears. I want to "turn off" multiple controls and "turn on" multiple other controls. Example code: -
Private Sub
Button4_Click(ByVal
sender
[Code].....
View 8 Replies
Aug 25, 2010
At design time in the IDE, you can ctrl-click or drag a box around multiple controls on a form and move them all at once. How do you do that at runtime. I need to be able to create image maps based on textual copies of medical claim forms that are generated from different systems and the ability to create dynamic label controls and move a single or multiple controls and resize is required. How does MS do this in the IDE?
View 7 Replies
Nov 10, 2010
I have a form that I will be using to keep track of data for computers I build and will eventually link into a database for configuration management, but for right now I'm just trying to get the basic form layout done and functional. I need this for to be customized for each job I do, that means I can have multiple computers, PC card, peripheral equipment, etc. So with that said basically what I have done is created a user control for each separate item that I want to add (i.e. computer, PC card, etc) that has all the fields and functions I require. When I want to add another computer I just add a tab and place my "computer" user control on it, no big deal...
My issue is when I want to add my "PC card" user control to that "computer" user control. What I am trying to do is to add the first user control(PC Card Info) I created under a button called "Add New PC Card" (which is part of the "computer" user control.)and that part works! What I want to do is keep added as many "pc card"user controls as I need and basically keep appending them under the last control on the bottom of the page (which is the "pc card" user control, that is a groupbox with a few drop down boxes and text boxes in it.)with a little spacing between them. The biggest problem I am having is when I add the first "PC Card" user control, it works.. but when I try to add another one and search the current page for all user controls under a certain point or with a specific name, I don't get any results.
I think I'm on the right track with the following code but I am running into 2 things I can't do that are critical to my needs. 1: I need to define the text of the user control I just added so I can uniquely identify it, so If I need to remove it I can and will also play a role later( I thought if there was some way in code to make my control # a variable that may work) 2: I need to know what to look for since I have a count that represents how many of that particular control exist on my form, that way I can name them properly, this will also allow me a method to delete the user control if desired.
Dim pccard As New PC_Card
Dim x As Integer
Dim name As String
[Code].....
View 3 Replies
Jun 23, 2011
How do capture which button caused the postback on a web form with multiple controls using asp.net
View 3 Replies
Sep 4, 2010
I have a thread running on a child form, I want to activate a control on the parent form but cannot. It works fine if It's done from the child forms UI thread:
(FormMain.SetControlPropertyValue(FormMain.RBSQL2005, "Checked", True))
but not from a thread running on the child form:
Public Class FormRestoreDB
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim t = New Thread(AddressOf UpdateListView1)
[code]....
View 2 Replies
Feb 25, 2008
Is there anyway of access the value of a chekbox in a excel worksheet using vb? I need to import the answers of a survey that is in multiple excel files.
I´ve tried
wsheetB.OLEObjects("CheckBox1").Object.Value
but I get a com exception
Exception from HRESULT: 0x800A03EC
View 8 Replies
Mar 24, 2010
How do I access the sContents variable in loadBoard() sub to LoadTable() sub
Sub loadBoard()
Dim oFile As FileStream
Dim oReader As StreamReader = Nothing
Dim sContents As String
[code]....
View 2 Replies
Mar 9, 2012
I have this,
Public Class posData
Public Property strLabel As String
Public Property strX As String
[Code]....
then i want to loop through all the objects within my list so i have a for each position in posList, inside this is where the problem occurs, i want to be able to write something like this, a1.blnavail, this is not happening however, i know i can use position.blnavail but i need to hardcode the position for my logic to work correctly
View 1 Replies
Mar 4, 2009
I have two variables, X and Y (this is just figurative)
X = 123
Y = X
How can I get that X out of the Y to be able to get the contents of X from the Y? I just want to be able to do something like tell a textbox to display the contents of the variable within the Y variable (thus, the contents of X).
View 4 Replies
Apr 2, 2009
I have a nokia phone, which is connected to my PC through Nokia PC Suite. Whenever I get a call on my phone, a small window appears above System Trey. I want to read out the number of caller that appears on that window through my program, so that I can use it further.
View 1 Replies
Mar 24, 2011
I have placed a button on data repeater (called datarepeater1) so that it is repeated with other controls. When I click this button, How do I access/reference the text value of a textbox control called TxtAnimalID on the same row? (This would be something like the current row I am on).
View 2 Replies
Jun 23, 2010
I have an ASP.NET Web Site I am creating in Visual Web Developer 2008 Express using Visual Basic as the language. It is actually a rewrite-with-mods of an existing ASP script and I'm trying to chew what I've bitten off. I created my page with a text box (txtOutput) on it and since the end product is very complex, and it's generally good practice to separate like functions, I have created 4 separate classes in the App_Code section. My main page is Sync.aspx and has a code file Sync.aspx.vb with it. One of my code files is SyncDatabases.vb and in it I have created
Public Class SyncDB
In that class I have created some routines such as
Public Function ReadMSDB(ByVal SQLString as string) as Boolean
In this routine I want to put information in my text box txtOutput on the main form (the default - Form1).
My problem is that if I try:
Form1.txtOutput.Text = "Hello world"
or just
txtOutput.Text = "Hello world"
it says Name 'Form1' (or 'txtOutput') is not declared. I am sure I am missing something simple but have no clue what it is. I assume it's the fact that the write command is in a file (class?) outside the file (class?) containing the page itself but I don't know how to address it properly.
View 4 Replies
May 19, 2010
I am trying to create an app that adds tabpages into a tabcontrol which has a several controls on each tabpages. However how do I access those controls?lets say the controls I add are named label1 and label2. the tabpage is named infoTab1.
If I do inftoTab.infoTab1.label1.Text = "some text" I get an error saying infoTab is not a member of 'system.windows.forms.tabcontrols' cause in design time it isn't added yet.So how is this actually done? am I on the right track?Any tutorials are more then welcome, tried google but only get basic concept stuff comes out it or trying the wrong keywords.
View 13 Replies
Dec 19, 2011
I want to be able to use a loop and reference controls using a string. The following code works for textboxes.
dim myControl as Control
dim ControlName as string
dim LoopCount as Integer
For LoopCount = 1 to 3
[code].....
View 5 Replies
Feb 13, 2009
I'm having trouble trying to access a list of comboboxes created dynamically in one procedure from another. I believe I have to add in an event handler but I not sure how this is going to work. Or should I change the array scope?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'variables declared here.
[code].....
View 5 Replies
Mar 2, 2010
I have an application that has a grid of rich text boxes on a panel. I would like to access and modify the text in the various rich text boxes during run time. I know this has been brought up a bazillon times over the years, but I would have done this as a series of control arrays in VB 6. Below is a simplified representation of how the textboxes would appear in a panel if control arrays were availble:
rtbA(1) rtbB(1) rtbC(1)
rtbA(2) rtbB(2) rtbC(2)
rtbA(3) rtbB(3) rtbC(3)
I find that I can access the properties of the rich text boxes via panel1.controls.item(x).text, for example, where x is the control index assigned by the panel when I dropped the controls on it.
Since I created the rich text boxes at design time and dropped them on the panel, it has arbitrarily assigned the index values, and they are not in the index order that I would desire.
How does one re-assign a control's index at design time for a controls collection on a panel? And if one has 24 text boxes on one panel, is there a way to break them into subgroups, such as rtbA(), rtbB(), rtbC() with their own index values?
View 2 Replies
Aug 25, 2009
how to access the main ui's labels from a delegate method?
View 7 Replies
Jun 26, 2009
I am trying to access controls that were added to the form and created code all before I added them to a panel. Upon form loading I create the form handle into a dictionary. then I call that dictionary ID and add data to the controls. I can't seem to add data to the controls inside the panel.. I think it is something simple. I may just be over looking the method I need to call.
View 11 Replies
