Executes A Loop To Make Visible All The Controls On A Panel?
Jun 12, 2012
I have a BackgroundWorker and the DoWork event, calls a function called "JustMe", it executes a loop to make visible all the controls on a panel, but does not work vb.net
Private Function JustMe As Boolean For Each ctr As Control In Panel1.Controls ctr.Visible = True Next Return True End Function Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
JustMe()
End Sub
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Dec 30, 2009
But I don't know if i posted this at the right place. I am making 40 textboxes inside a panel. And this textboxes I set it to visible=FALSE. Then I have another textbox named txtNoteam in which once the user will enter a number in this txtbox which is less than or equal to 40, those textboxes will be set to true starting from textbox1 to textbox40 depending on the number entered by the user. Example: user enters 3, then textbox 1 to textbox 3 will be set to visible.
I was successful in doing this except one thing, instead of textbox 1 to textbox 3 will be set to visible, it's the textbox 38 to textbox 40 will be set first. This means it will start from the last textbox to the first textbox instead of from textbox1 to the last textbox.
I need your help on what should I do for this to be able to set it to visible from the 1st textbox to the last textbox or is there any other ways of doing this?
[Code]...
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Jul 16, 2011
Well im not understanding to much about the panel control. I am not understanding on how to do this panel control put a textbox and button control in it, when the user selects load from Internet, you make the panel control visible, then use the textbox to get the URL from the user and the button to fire the event that makes everything happen
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Sep 11, 2009
I use lots of panels to hide controls and display groups of controls.
If sender Is BDVActive Or sender Is BDVCompleted Then
BDVCases.Visible = True
BDVCases.BringToFront()
[Code]...
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Apr 3, 2010
I have a simple treeview, when I click a node I want to be able to make a panel visible when a node is clicked using a simple if then statement and make the other panels associated with the other nodes invisible. From what I read the code should be placed in the afterselect method. Was thinking would be similiar to a list box using selected index or something but can't seem to get it to work.
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Nov 20, 2009
I have a form with six picture boxes on it. Each Picture Box has a button underneath it. When the button in clicked, a "Label" and "Textbox" appears. My question is, how can I close the currently open "Label" and "Textbox", when I click another button. I have a working code below, but it's not efficient. As you can see, I will have to list all labels and textboxes on the form. Is there a way to identify all labels and textboxes without naming them all. [code]...
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Jan 28, 2009
I've got a panel - that's in a group box. All of this - with lots of other textboxes on labels - is in another panel (the big panel).I make the big panel visible and not visible based on selections made by the user.This small panel - that's in the group box. I cannot seem to make it appear.Even if I leave it VISIBLE at design time - the objects in it will not appear.Is there some kind of nesting problem that I'm not aware of!
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Jan 27, 2010
I want my form to be invisible but I want the buttons and list-box to still be visible. So basicaly I want a bunch of floating buttons and listboxes on my screen.
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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].....
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Jan 25, 2009
I want to loop through all the controls on a "panel" and bind them to a datatable. I'm finding it hard to detect the "end of the panel" - as I also have group boxes and such on the panel. At first I was using the "parent" control - but that doesn't work with group boxes.
[Code]...
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Mar 2, 2010
I am trying to make a collection of controls that I can loop through. So I have this code in my form... Dim WizardFrameCollection As New Control.ControlCollection(Nothing)
I then try to add controls to the collection by I get a error "Object reference not set to an instance of an object." WizardFrameCollection.Add(Me.GroupBox1) I am not sure why I am getting this error. Groupbox1 is a groupbox that is on the form.
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Apr 4, 2012
I would like to know please how to check whether a string exists or not in a html code. I'm executing a for loop. Each time it checks a different url, so I want to be able to check each time if for example "<img" exists .
P.S: What's the difference between using
webrowser1.navigate
AND
dim request webrequest
request = WebRequest.Create
etc...
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Apr 21, 2009
When a user is editing a given piece of data, they're allowed to add messages/comments. These are stored as child records in a SQL database. Clicking on the Add Message button brings up a panel (pnlMessage) courtesy of the AJAX ModalPopup Extender. This takes some input and, when the "Send Message" button in the panel is clicked (I learned the hard way to NOT make that the 'OkButton' property), the message is stored in the database and an email is sent to the intended recipients. No problem there.
However, I need to be able to allow the user to add new email addresses (so long as they are registered in our database). I have another ModalPopup / panel combo (pnlSearch) that's tied to a button on the previous panel (pnlMessage).
The user is supposed to be able to add an email or click on a search button to populate a list to choose from.
The pop-up panel (pnlSearch) comes up just fine, but clicking the "Lookup" button (which instigates the search and returns a collection of records that the user is supposed to pick from) closes the panel.
Previously, I ran into the problem of having the Button.Click event never firing when I put the Button into the "OkControlID" property (the CancelControlID works fine since I don't want to do anything). Removing the "OkControlID=Button" line allowed it to work perfectly with the Button.Click event firing as expected.
So now I have the Search panel with a button for "OK" and a button for "Search" - but the panel should stay up and visible after the Search.Click does it's thing. Am I missing some property that basically says "don't close the panel when this button is clicked"? Of course, if I bring up the panel again in the same session, the results from the previous effort are there (the search results).
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Apr 14, 2012
I'm getting some unexpected behavior with panel scrollbars, and was wondering if it is a bug, or simply something that I'm failing to do correctly. Basically, I have a panel with Autoscroll enabled. Then I put some other items inside the panel, and then make the panel smaller, so that the panel's scrollbars appear.
Outside of the panel I have 2 buttons, named "scrollOn" and "scrollOff", which turn the panel's scrollbar's on and off using the "Autoscroll" property (for example the "scrollOff" code I'm using is Panel1.AutoScroll = False ). So after I run the program, I move the panel's scrollbar down a little bit with the mouse (this part is necessary to reproduce the bug). I then click the "scrollOff" button (which should make the scrollbars disappear). But when I do that, the scrollbars are not only still visible, but they "freeze up" (can't move them with the mouse anymore).
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Aug 25, 2010
I have set the panel on visible as false, so it would not show up when I run the form. I am trying to set the visible as true when I enter my mouse on panel location, but it doesn't show anything....
Private Sub Panel1_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles Panel1.Enter
Panel1.Visible = True
End Sub
How to set the panel visible as true when I enter my mouse on panel location while the visible are false?
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Aug 4, 2011
I have a Windows Forms VB.NET application, with a panel that contains a few other controls.I set the panel's AutoScroll property to True, and that seems to appropiately apply the scroll bars when they are needed. The issue is that a user must scroll all the way to the right to access the verticle scroll bar. Is there a way to always show the verticle scrollbar no matter where the user is scrolled horizontally?
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Aug 17, 2009
I have a panel, how can I save a picture of what is visible in that panel to file as a bmp?
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Jun 28, 2010
I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:
Dim picLight(2) As
Boolean
For intX
[code]....
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Mar 25, 2012
I am stumped on this one. I have a panel (pnlKeyPad) that won't change the visible property when I try to set it to True. But when I try to set the Dock Property to DockStyle.Fill it succeeds. I have tried them in different orders, setting the parent property to the splitpanel and nothing seems to fix it. The panel is on a splitpanel that is visible. The panel is set to visible = false by default.
Any ideas of why this panel won't switch to visible when I specifically set it to visible?[code]...
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Aug 5, 2009
I have a number of textboxes and labels in a panel which has to scroll in order to view them all. The user is then able to scroll down and click on one of the labels which has a textbox that appears so the user can change the corresponding value in the label. For some reason, if the user has to scroll down at all to any of the labels that are initially out of view, when they click on the label the textbox appears far below as if it was at its initial position and not directly where the label currently is.
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Mar 14, 2012
In Form1 I have a SplitContainer with Panels.In SplitContainer1.Panel2 i have a Form2 (Inherit) and a GroupBox1.
[code]...
When i Start the Application, Form1 Appear with 2 Panels. In SplitContainer1.Panel1 is the Button1 and in SplitContainer1.Panel2 is not visible the GroupBox1.I press the Button1 and nothing happen. Why? How can i make visible the GroupBox1 by Button1?
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Jul 23, 2010
I have a VB.Net project. The form has a panel and few buttons inside panel... The problem is that the background image of the panel is only visible behind buttons....but not in empty space....The app is running fine on Windows 7 but the problem comes on XP....I have tried "Enable XP Visual Styles" but no luck....When i dock a button to fill all empty space then the background image is visible....but if i remove the button ... background image is not visible....
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Nov 24, 2011
I would like to add an effect where a panel sweeps out of the way to make room for another panel. This is sort of like a sliding effect, and I think at one point in time this could be seen on Apple's website under their product pages. I came up with some code, but it isn't working.
[Code]...
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Jul 17, 2009
I need some code that goes through each item in a listbox and executes a for next loop for each item
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Mar 1, 2012
In VB6 I could embed a panel or picturebox containing controls or images within an outer panel or picturebox. If I moved the outer control then the embedded panel would move with the outer panel and stay in the same relative position, which is what I require. This doesn't seem to happen in VB.NET, the internal panel stays fixed in its location, even if I have pasted this panel within the outer container. Is there are trick to this or do I have to code to get the internal panel to move with the outer one? How does an internal container remain embedded within an outer one?
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Apr 16, 2011
When I place a control on a form and need to move it, it becomes invisible when I click the mouse to move . What did I accidently change? I use to be able to see it before.
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Sep 11, 2011
I would like to list all visible controls in a form, I use reflection to do this, I have done what I want, but I have to write code for specifics controls that doesnt exist in the Framework, so i would like to know if there is some code to do that generic for any control (even third party controls).
Private Sub LlenarArbolFormularios(ByVal Arbol As TreeList)
Dim parentForRootNodes As TreeListNode = Nothing
Dim tipos() As Type = System.Reflection.Assembly.GetExecutingAssembly().GetTypes()[code]......
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Jun 6, 2011
I recently uninstalled an IDE for a motion control system (Delta Tau) that is a visual studio based product. Now when I bring up my Visual Basic 2008 IDE that I'm using to write an HMI for the control system, the properties for controls placed on forms doesn't appear in the properties window. And if I click on properties for a form I get the FileProperties2 information, not the form control properties such as size, location, or color. I am also not able to access the controls in the VB toolbox to place on a form. The controls are grayed out and unavailable. what part of Visual Studio 2008 got broke in the Delta Tau uninstall?
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Mar 26, 2012
I am trying to see all the labels in Me.Controls and when I use:
For Each Control As Label In Me.Controls.OfType(Of Label)()
MsgBox(Control.Name.ToString)
Next
it only shows the labels that have NOT been renamed
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Nov 11, 2009
I have aspx form with several textboxes.They are populated with values from a table via retrieval of a dataview.If the row count for the dataview is 0, then I'd like to reset the values in all textboxes. How can I loop through all the textboxes and set a default value?I've tried the following, but no sucess.
For Each ctrl As Control In Page.Form.Controls
If TypeOf ctrl Is WebControls.TextBox Then
CType(ctrl, WebControls.TextBox).Text = ""
End If
Next
My first For Loop was using Page.Controls but it returned only 1 count.The textboxes are inside a tabpanel (ajax), so do I have to locate the tabpage and then find all it's controls (for each tabpage)?
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