[2008] Reference With Added Control?
Feb 20, 2009
I have two FlowLayoutPanels in a Form. The first read images from a DIR and expose them generating so many PictureBoxes are necessary. The user can drag an image and drop into the second Panel. All works fine. Now the problem is how can I know the name of the image contained in the PictureBox in the dropped Panel so that I can save it? I tried to recover in a ListBox the name of the images during the population of the first Panel but I don�t know witch may be the reference with the dropped PictureBox.
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Aug 12, 2009
What is the best method to reference a new record added to SQL?
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Jun 21, 2010
I have a program that adds controls on the fly to an auto-scroll panel. When the panel is scrolled (viewing the bottom of the panel for example) and a control is added, it looks like it is added assuming the top left corner of the panel is still at 0,0 when in fact it may be 0,500. To see what I am talking about, create an empty "Windows Forms Application" project and insert the below code into it.
Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents btnAdd As System.Windows.Forms.Button
Dim ButtonCount As Integer
[code]......
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Apr 22, 2010
I am using a .net program. My program is used by few people and it at times downloads updates automatically.Recently I have added a COM control (ocx) in my .net program. Now when I run the program (with ocx in the folder) it gives an error. When I registered the ocx thru regsvr32, it worked fine. So now my program has to register the ocx. Is there any other way to do that rather than using regsvr32. The reason is the regsvr thing will work fine in Win Xp systems but in Vista/Windows 7, which has higher security, I dont know if regsvr will work ok or give an error or will run in elevated more.What should I do ? Should I stick with regsvr32 for all OS or is there an alternative.
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Sep 9, 2009
I've been working on a project lately, where the user can click on an item in a listbox and then get a picture in the PictureBox1. My problem is that when I added a tab control so that I could have several pages with different listboxes and pictureboxes, it stopped working! When I click on an item in ListBox1, the picture doesn't show up in PictureBox1. Why did the tab control ruin everything?
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Sep 26, 2011
At some point in the past, I have added a TabControl1 to my Form in design, now I can't find. I need to view it so I can make some changes. I have looked in the 'Document Outline' and is not there as well. However, the control must be somewhere because it works fine when I run the program.
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May 25, 2009
[code]...
and from VB6 project I reference to Test.dll but an error messege was appear A reference to Test.dll file could not be added (If I create VB NET project and reference to file Test.dll it OK )
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Oct 28, 2010
I have a web site project where I need to use the System.Security.Cryptography.Xml.SignedXml class. I added the Dll System.Security as a reference and imported the namespace into my project. It compiles successfully but when I debug the project I get a compilation error:
Compiler Error Message: BC30002: Type 'System.Security.Cryptography.Xml.SignedXml' is not defined.
What gives? Edit: I run Windows XP Pro 64bit OS
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Jan 6, 2011
I'm trying to learn how to call functions in C DLLs from Visual Basic programs. I'm new to VB but have years of experience in C programming & want my functions to be usable by people who are more familiar with VB.
I managed to create a C DLL & call the functions from a C program. One difficulty I had was that I wanted to put my DLLs in a MyExes directory so I could easily have several unrelated programs call them. It was far from obvious how to tell the compiler & linker to look for the DLL in some arbitrary folder but I eventually found out.
[URL]
Now one of my difficulties with DLLs & Visual Basic is how to tell Visual Basic 2010 Express to look for functions in a DLL in some arbitrary folder. I tried to use Project->Add Reference, then in the Browse tab went to the folder & DLL I wanted to use, but got the message box:"A reference to C:ProgramFilesMyExes....dll could not be added. Please make sure that the file is accesible and that it is a valid assembly or COM component."I've tried to find a walkthrough to take me through the steps of using C DLLs in VB 2010, but so far had no luck.
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Aug 7, 2010
I have added a reference to the System.Data.SqlClient, but i am not able to use its components while coding, But when i import it in the form class i able to use the component.
So,Is importing a namespace and adding a reference two different things?
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Jan 8, 2012
I was trying to make my program see if facebook.com was running in internet explorer.
I added the following
Private Function isFaceBookOpen() As Boolean
For Each ie As SHDocVw.InternetExplorer In New SHDocVw.ShellWindows()
Dim filename As String = System.IO.Path.GetFileNameWithoutExtension(ie.FullName).ToLower()
If filename = "iexplore" Then
[code]...
And added reference; Microsoft Internet Controls (COM tab) but i also need to add this reference; Microsoft.mshtml (.NET tab)
Problem is that i can't find that reference. BTW, I want the function to be triggered by a timer.
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Jan 11, 2011
If i have a check box in a groupbox on my form, and i wanted to get the "control" using its name, how would i do that?
The function below returns the control, but only if the control is on the form directly. It doesn't function if the control (in my case, the checkbox) is in a groupbox, or on a tab control, or both!
Private Function getControlFromName(ByVal controlName As String) As System.Windows.Forms.Control
Return Me.Controls(controlName)
End Function
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Sep 11, 2009
In THIS Thread:NickThissen Said:Quote:It will appear in the toolbox even if you put it in the current project, instead of a control library project.No, it does not have to be in a control library, nor does it have to be a UserControl, to appear in the Toolbox. Any class inheriting (either directly or indirectly) from Control or Component will appear in the Toolbox. Since RadioButton inherits from Control, and your control inherits from RadioButton, your control inherits from Control too, so it will appear in the Toolbox. I have successfully created a pretty cool custom control. I Built the project and have added the a reference to the .dll form a new Windows forms project. It works great, as long as I do something like THIS:
Dim ThisControl As New MyCustomControl
ThisControl.Top = 40
ThisCOntrol.Left = 40
[code]....
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Jul 26, 2011
when I add a Control to the List(Of Control) what gets added to the List? Is it the Control or reference to the Control.I have a collection of controls (picture boxes representing notes,comments, icons, etc.), which can be drag and drop into other picture boxes holding read only images. Those controls are never permamently added to those images, they can be move or dispose as needed. I need to save those controls to a file and retrieve it later, however when retrieved, they must be place onto the same location in the image. Saving just the image is not the option, I also need to save all the control attributes.
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Aug 5, 2010
I have a form with a panel on it (among other controls). I am trying to load picture boxes into the panel (in an attempt to make a star grid). Using the code below, I get a "Top-level control cannot be added to a control." error on the "Parent = Me.Panel7" line.
Searching for this error, I came across a solution to change the TopLevelControl property of the panel to FALSE....but I then get an error "TopLevelControl is read only".
Public Class frmMain
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
LoadPictureBoxes()
[code]....
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Nov 16, 2010
Receive 'ConfigurationManager' is not a member of 'Configuration' in VS2008.I read all of the topics in the forum about this error Tried adding areference to System.Configuration.dll to the project and an "Imports System.Configuration" to the vb file.Still get an error
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Feb 26, 2011
I added a table to my Access database. I added that table to my dataset. Using Database Designer VB Studio, my table and tableadapter show up in the design view. The class definition is in the datasetdesigner.vb, and it shows in the object browser. But, I can't reference it in code. I am a newby and obviously missing somethning.
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Dec 1, 2009
i want write a program to play ogg files, but when i add reference of vorbisfile.dll ait gives me a error same problem with other two
libogg.dll
vorbis.dll
error reference of "path of file" could not be added,please make sure the file is accessible, and that it is a valid assembly or COM component
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May 8, 2010
I get this error:Reference to a non-shared member requires an object reference.When i compile on the following code section:
Private Sub statusBarToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs)
ToolStripMenuItem.Checked = Not ToolStripMenuItem.Checked
statusStrip1.Visible = ToolStripMenuItem.Checked
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Nov 22, 2009
I am trying to create a custom control using vb.net.I have added a image to the user control and the problem I am having is that when I resize the image, the image seems to move as well.I want to be able to resize the user control height without moving the image on the user control.
everytime I resize the user control, it seems to move the image on it as well.Is there a way of leaving the image where it is without moving it as the user control moves?
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Mar 4, 2010
I am using Vb.net 3.5, An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in System.Windows.Forms.dll
Additional information: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
This exception is coming when control is trying to added into the page i.e Me.Controls.Add(CntrlName). I have registered.Then also i am getting error.Please help me.Its urgent.
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Apr 22, 2011
Why would the controls not be in the order that they were added. I am adding the controls below, the first one to be added is a label, would expect to see it at the top,but it appears below the other linklabels[code]...
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May 13, 2011
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.
[Code]...
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Jun 13, 2011
I'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
[Code].....
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?
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Jul 7, 2009
[Code]...
I am using this exact code on another form in the same project without an issue, just with a different data source. Any ideas?
EDIT: Never mind, seems like it was a stupid naming scheme and VS was adding a bindingsource with a different name than I wanted.
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Feb 8, 2012
I have two forms form one have one listbox and one checkedlistbox and form2 have only checkedlistbox
on form one checkedlistbox is being updated by listbox_SelectedIndexChanged.
how can update checkedlistbox on form 2 when listbox_SelectedIndexChanged on form1
when i use form2.checkedlistbox.BeingUpdate()
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Jan 19, 2011
how to add dynamic control to dynamically added picturebox?
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Jan 3, 2010
How do I add an event Handler to a control, for example a textbox, to handle any keypress event?cause I want this textbox(which is added in program runtime) to only accept any convert any small letter to Upper case.
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Sep 30, 2009
I've created a custom control that I insert into my window with the following code
Code:
<controls:ListExpander Text="Class Diagrams"></controls:ListExpander>
The control in question contains several subcontrols, among others, a list. How can create the setup, so I can specify items that should be added to the list?
Code:
<controls:ListExpander Text="Class Diagrams">
<SomeItem>data<SomeItem>
<SomeItem>data<SomeItem>
<SomeItem>data<SomeItem>
<SomeItem>data<SomeItem>
</controls:ListExpander>
In which case the SomeItem objects should be added to the list in the ListExpander:
Code:
<ListBox Name="lstItems" Background="LightGray">
<ListBox.Items>
// Items should go here
</ListBox.Items>
</ListBox>
I'm quite new to WPF, but I suppose it's something along the lines of creating a dependency collection on ListExpander that takes object of the type SomeItem? I simply want to be able to give the control a few arguments which it can translate into items in the listbox contained within the the control.
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Nov 19, 2010
I'm adding multiple combobox controls to a form dynamically, but am having a problem with one of the event handlers. The first event handler I've added (for the Leave event) fires, but the second (for the TextChanged event) does not. I've tried reversing the order when adding the handlers and I get the same results (TextChanged does not fire). Here's a code snippet for adding the controls, and the code for the events. I've added a breakpoint while testing to verify - but it never hits the code.
Dim cbo As New ComboBox
cbo.Name = "cbo" & fldName
cbo.Tag = fldName.ToUpper
cbo.Top = rowtop
cbo.TabIndex = tabOrder
cbo.DropDownStyle = ComboBoxStyle.DropDown
[Code] .....
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