When In The Process Of Adding A Control To A TableLayoutPanel Do New ColumnStyles/RowStyles Get Added
Jul 30, 2009
I'm adding controls to a TableLayoutPanel in the form myTableLayoutPanel.Controls.Add(someControl, 5, 5), inserting the control in column 5, row 5. After that line of code has executed, I expect that the ColumnStyles and RowStyles properties of myTableLayoutPanel will contain ColumStyles for columns 0 through 5, and RowStyles for rows 0 through 5. This is not the case. where and when RowStyles and ColumnStyles are added to these properties and the best way to deal with adding styles when inserting new Controls?
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May 12, 2011
In the windows form designer, I added a StatusStrip control, made some changes to adding items and changed the names of the items to names I would recognize, for instance I changed "ToolStripStatusLabel3" to "lblMode". All was fine until I inadvertenly deleted the StatusStrip. Now when I add it back to the form and try to change the name I get an error saying that the name "lblMode" is already in use. And sure enough it is listed in the items of the properties window, but not dislayed anywhere.
I am not sure how to resolve this. I know there is a window, I think its called "Project Designer" or something similar that is code where controls get added but I CANNOT find this window to view the code.
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Aug 31, 2009
When I add a control to a TLP in design mode several new properties get added to the control, such as ColumnSpan, RowSpan, etc, which can then be set in the properties window. If I add a control to a TLP in code these properties don't seem to be available. how to set these properties in code if it's even possible?
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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 15, 2010
[Code]...
SubMy problem is that I want to be able to determine the CHECKBOX checked state within this sub. The sub is being called when the checkbox is checked, but I can't seem to find a way to do the conditional.
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May 15, 2009
I have a routine which allows me to expand the size of my DataGridView within a TableLayoutPanel. Effectively it repositions the DGV to the first row and first column of the TableLayoutPanel that it is in using the SetRow and SetColumn methods of the TableLAyoutPanel. Then it sets the column and row span by passing the row and column count properties of the TableLayoutPanel to the SetColumnSpan and SetRowSpan methods. It work fine. There are two buttons on the form, One expands the DGV the other returns it to its original state.
My question is, how would I set this up if I wanted to do this for all the controls in this TableLayoutPanel and/or every control on every other TableLAyoutPanel on my form. I am assuming I have to use a class as I would have to create an abundance of public variables to pass the row/colum and row/column span starting positions to.[code]....
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Oct 24, 2010
I am looking for a little help with replacing a combobox with a textbox in a specific row&column in a TLP.
I have basically looped through my TLP and found the control I want and tried to use its row&column to create a new control in its place with no luck
[Code]...
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Dec 9, 2009
Is There Anyway To Use The TableLayoutPanel Control In A Mobile Application
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Jan 25, 2011
I'm using VB.net 2005 to code an application that will be a used as a "digital sign" to report factory production levels and will be displayed on a 55 inch wide screen LCD TV/display. So I am putting my controls in a TableLayoutPanel control so they will expand to use the whole TV screen and can be view from a distance. (I have my FormBorderStyle = None and WindowState = Maximized.) My Form is set to AutoSize = True and AutoSizeMode = GrowOnly. My TableLayoutPanel AutoSize = True, AutoSizeMode = GrowOnly, and Dock = Fill. I'm using Label controls to display the text on the display and they are set to AutoSize = False and Dock = Fill. When I run the app. the Gauge control expands on my 19" monitor like it should, but none of the Label Text expand. How do I get the Labels to enlarge / Fill there area? Is that not possible?
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Jul 2, 2009
I have a data bound DataGridView. The final column of this is for the last change date to see how new the data is. I also have a hidden label on my form that has the current system time and date. I am wondering how do I take the date that is on the label and insert it into the column for the last change date on the datagridview when ever a new row is added. This way it automates the process of putting the exact time that row was added.
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Aug 5, 2010
i am wanting to add handler for controls i add at Page_load at page load i added several image buttons and applied the image urls using -i used the borderwidth propertiy for padding as was having trouble getting a cssclass to work. [code] what i want these Image button to do is when clicked a larger image in another panel will appear so i will need to assign the clicked buttons image url to the large image controls, image url
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May 7, 2010
I have run into this problem a number of times, and I am not sure what I might be doing wrong - or if this is just a bug, or not going to work.I have a collection that I setup on my own (eg, collection class). I then cycle a Log file that has text entires and I read those, and then parse the entry and attempt to add it to my collection.
But as each entry is added, ALL records just get duplicated - in other words, as I add entry 2, both entrys 1 AND 2 wind up with the same values - as I add 3, all 3 entries get the same value - and this continues no matter how many entries. For example,
if I added 100 entries, I would have 100 duplicates of the last record added.I have stepped through the debugger and watched this occur and just cannot figure out why this is not working as it should. Here is the code...
While
Not objReader.EndOfStream
' Read one full line
[code]....
No matter what I do, my lstSent collection just winds up with EVERY entry being the same as the last entry added.
End
IfFalse'
Add the elements into the collection if its a "Sent" itemElem = objReader.ReadLine
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Feb 18, 2009
Hi how's it going. In the middle of coding a banking application for a project. Part of it involves mortgage interest repayments. Was wondering if there was any way of logging the time a new record was created and added to the database and then adding interest to the balance owed periodically every 30 days..
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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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Jul 11, 2008
I am in the process of designing a computer control program to control a HF communications receiver (radio), and have found a problem with the Serial port. I am using VB Express Edition 2008. This module of the program is supposed to take an input string from another part of the program, format it, break it into 4 bytes, and send it to the radio in hex form via COM port 1. The problem comes in when you try to enter a frequency with an 8 or a 9 in it. The 8 or 9 is usually replaced by 45, ex.-input 9900, receiver tune 4545. The exact same thing happens with 8's, input 8800 and receiver tune 4545. All other numbers other than 8 or 9 work fine. The strange part of it is that sometimes the 8's and 9's work, and work correctly. For instance, 900, 1900, 2900, 3900, 4900, 5900, 6900, and 7900 all work correctly. This led me to believe that is may only be when the 8 or 9 is in the first position, but that is not the case, it also shows up in other positions as well. All other frequencies that do not have 8 or 9 in them also work. I ran into this same problem with VB Express 2005, and worked on it for weeks before giving up and going back to VB6.0. This same module (with exception of the port open command) runs flawlessly under VB6. I have even tried importing the MSCOMM control from VB6, but it gives the same results. In de-bugging mode, all of the inputs, decimal and hex seem to be correct, so the problem must come in after you click the command button, but before it leaves the COM port.
[Code]...
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Dec 18, 2010
I'm trying to Enqueue several processes to a queue of processes.When I do, each process is added, but only the last process name is added. The rest of the names are blank.Here's what I'm doing to test it:
VB.NET
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
[code]......
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Sep 22, 2011
im trying to start a process within vb.net as an administrator. I have succesfully impersonated an administrator from within my application, however when I try to process.start to access a UNC path it says login username or password invalid. This is not true because im running as the user who has permissions to access that unc path.
I was able to work around this, by using shell() instead of process.start(). However, with Shell() you can not specify a username and password, so I have to use the runas command. However, shell calls for runas, but runas requires you to enter a password in order to proceed to call the program your requesting runas to run. How can I programmatically enter the password into the runas.exe process as if I entered it manually.
If there is a way to implement this using process.start() instead of shell() please let me know.
This is what I have so far.
[Code]...
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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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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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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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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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Sep 15, 2011
I am trying to create a program, where the user click a button and this will add a custom control and then drag and drop them on the form.
What I want to be able to do is add multiple controls (by clicking this button) and for them all to have the same events. So basically they can add as many as they like of this control and then click on it and drag it anywhere.I know in vb6 there was the use of the control index but I am not sure how to do this in Visual Studio 2005?
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