Pass Usercontrol Controls Or Form Controls?
May 11, 2009I created a class that can take either usercontrol.controls or form.controls as a parameter,how can i pass either to that class? as a property or how?
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Asp.net - Check Whether The Controls In Usercontrol Contain Any Value?
Dec 8, 2011How do I check whether the controls in a usercontrol contain any value?
I have created a usercontrol called ctlCustomerAddress and I want to create an address record in the database if only I have the values in the textboxes.
Add Controls To A Form In Code And Set The Properties Of The Controls?
May 24, 2009How can I add controls to a form in code and set the properties of the controls using the With statement?Also I would like to know how to add a container control and then add a control to that container.
View 2 RepliesControls Not Return All The Child Controls For The Form?
Apr 15, 2010I have a slight problem With an enumaration of child controls on a form. The following code will not get but about have the controls that are on the form. The controls show that the count is correct but when it goes through the loop it skips over some of the controls. If you run it through the enumeration two or three times it will get all the controls a few at a time. The solution uses two forms, one that has the controls and the other that labels are made and displayed on. The Tx is just a index to add a number to the label.name and rename the label. So each label is identified seperately. This works for all the the controls that are seen in the for each loop.
View 11 RepliesControls On Inherited Usercontrol Are Invisible?
Jun 26, 2010am trying to make use of inheritance to keep consistency in my user control appearance. I created a usercontrol to use as my base design, as a platform to link to a tab as acontainer. To this I added a few framing visual items like a header panel andsome labels.I then created another usercontrol that inherits from my base control, with the intention of adding the necessary items to this derived control to build it into a complete functional usercontrol that I can associate with a tab on my main form. I want to keep the visual appearance consistent across all similar derived controls. Then later if I change the design of the base form, this flows through to the derived controls.
View 7 RepliesUsercontrol - Test Controls In Its Container
Dec 6, 2011i'm building a control. then the control can be puted in form(or other container) and i need to know what controls are in that container. for now i don't put it to work:
Code:
Public Sub AllControlsName()
Dim i As Long
For i = 0 To Me.Container.Components.Count - 1
[Code].....
Allow IExtenderProvider Control To Attach To Controls On A UserControl
Mar 25, 2010VB.NET 2.0 Framework..I developed a control that implements IExtenderProvider in order to attach to controls and display a form for translating of the text of that control.This works great on regular controls on the form but the IExtenderProvider is not attaching to controls on UserControls by default.Is it possible to modify the UserControl or my IExtenderProvider control to enable it to attach to controls on a UserControl?
View 1 RepliesDifference Between Custom Control - Inherited Controls Adn Usercontrol?
Dec 14, 2009what is the diff between custom control ,inherited controls adn usercontrol in vb.netadil
View 2 RepliesSet The Value Of X That Is The Location Of The Controls Inside A Selected Usercontrol At Runtime
Sep 8, 2009I want to set the value of x that is the location of the controls inside a selected usercontrol at runtime. i want to set it to be 0 when there is no control on the usercontrol and i want it to be x += control.width. how can i do this, maybe how can i detect that there is a control inside the usercontrol.
View 8 RepliesUserControl Communication - Sharing Information Between User Controls
Nov 29, 2010Whats your preferred method of sharing information between user controls? Information stored in variables (strings,arrays, list of etc).
View 12 RepliesAccessing Controls Within Controls On A Form
May 26, 2012I 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.
Creating A Container Control Out Of A UserControl Can't Access Controls At Runtime?
Oct 16, 2009I have created a usercontrol that contains two rectangle shapes to create a unique button effect and a rounded-corner rectangle shape serving as a border to provide a look similar to a group box. It also contains two labels, one for use with a Text property of the control and the other to indicate the status of expansion of the control. The control is designed to collapse itself when the "button" is clicked leaving only the "button" visible. Clicking it again toggles this affect. I've dubbed it an ExpansionBar. It is also designed to be a container control so that I can add controls to it and allow these to disappear when the bottom portion collapses. The problem is that the controls contained in this usercontrol cannot be accessed during runtime. In other words, I can add a checkbox to it and it will disappear correctly when the control collapses, but I can't select the checkbox to check it... same thing with any other controls, you can see, but can't touch. I'm a novice developer, so I'm sure I'm missing something obvious.
View 12 RepliesUser Conrol Mouse Events From Controls Added To The Usercontrol?
Dec 7, 2009I am trying to make a small control that has a picturebox and a few labels that can be dragged on the form it is placed on. The control was easy, and I can drag it fine when the mouse is down on the control, where there are no other controls, like not over the picturebox or labels.
When i try to click and drag the user-control and the mouse is on the picture box or labels of the control the mouse down event is not detected. I am hoping someone can tell me how to pass the mouse-down event from the controls on the user-control so the form I place it on detects the mouse down even no matter where on the control i click.
Write Controls Text Into A .txt File And Read Them Form .txt File To Controls Again?
Jan 16, 2012I have a form. And some controls(such as TextBox,ComboBox,etc.) on the form.Now,I want to store the controls' Text into a .txt file(or any other formarts).Then I want to read the text in the .txt file to my controls.
View 10 RepliesPass A Listbox Selecteditem In Usercontrol To Parent Form?
Oct 19, 2010I have a user control which contains several buttons and a listbox. Clicking a buttondetermines what items are in the listbox. When a user clicks an item in the listbox I want the selecteditem passed to the parent form.
View 6 RepliesGet Values From Dynamically Added Controls And Pass It To Webservice?
Jan 12, 2011I get values from web service:
Dim ctr As Integer = 100
Dim ctr2 As Integer = 145
Dim ctr3 As Integer = -2
[code].....
Accessing The Click Event In Layered Controls Or When Multiple Controls Are Docked Within Each Other?
May 22, 2009I 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].....
Manage A Large Number Of Similar Controls In A User Interface (such As Button Or TextBox Controls)
Aug 23, 2011There is newer code in a follow up post. I suggest using the code in the later post rather than the code in this one. You can still read this post though. When designing a user interface, one should be conscious of how many individual controls are required to implement the functionality. In some cases an initial design may begin with many buttons or textboxes (for example) but then further review of
the actual required functionality allows for a reduction in the number of unique controls.
But other times, there isn't a better way (which will still make sense to the user of the application) then to have a series of many repeated controls. So in the cases where one can be certain that the best UI implementation for an application will require the use of multiple copies of a given control, then it often becomes necessary to maintain some method of managing all of those controls at various points
throughout the application. Doing so typically requires that one build up some collection of controls which can then be accessed by index in order to work with any given control; but this can lead to a lot of clutter in the code file which handles these control's events. For instance there will be some kind of collection declaration, some recursive routine to find all of the controls of interest, and then any number of event handler methods with long lists of Handles clauses, or additional code loops to wire up the event handling for each control.
Purpose Since most of this functionality could be considered a requirement regardless of the type of control being managed, or its required functionality, it may make sense to wrap all of the control management functionality into a single class. And since our first requirement is a collection of controls, then a base collection class could be the perfect starting point for our control manager. There are a number of existing thread around this topic, with some recent (at the time of this writing) ones being:[URL]..In this, and related, threads I have posted examples of a simple TextBoxManager and ButtonManager control. But again, with so much similar functionality required regardless of the control being managed, it would be technically possible to create a generic ControlManager(Of T As Control) class which can manage any type of control.
[Code]...
So in summary, one can facilitate managing a large number of user interface controls by building a "control manager" class which both encapsulates the list of control instances, and deals with adding and removing defined event handlers for every control it manages. The generic control manager class itself can be inherited and extended into a more specific class on a per-application basis in order to provide more application-specific functionality. Reed Kimble - "When you do things right, people won't be sure you've done anything at all"
Accessing Controls Inside ASP.NET View Controls (Event Handling)?
Nov 8, 2011If 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].....
Control Recommendations - Controls At The Top Of It And A Large DataGridView Is Docked Below All The Controls
Nov 10, 2011I have a maximized form that has controls at the top of it and a large DataGridView that is docked below all the controls. Its kind of like the Ribbon in MS Office. The controls cover about 1/4 of the screen at the top. I would like a way for the user to click a button to hide all the controls then automatically expand into the place the controls were so the user can view more data in the DataGridView and visa versa. For example, in MS Office Excel you can hide the ribbon by clicking a tiny button that has "^" on it.
I'm not very familiar with all the controls in Visual Studio so I would like to hear some recommendations. Is this situation ideal for a SplitContainer or ToolStripContainer or am I way off base here?
NumericUpDown Controls - Update Some Variables Each Time One Of These NumUD Controls Changes Value
Nov 20, 2011I've got a couple of these NumericUpDown controls I put on a form. Without describing too much about the form I basically want to update some variables each time one of these NumUD controls changes value. So for each NumUD I have a call to a Recalculate subroutine within their "changedValue" event.
There are actually two problems. First, if I initialize the "Value" property to something other than zero in VB2010 at DESIGN TIME it won't even open the form when I hit RUN. It gives me a "No Source Available. No symbols loaded for any call stack frame" error. The error box says "InvalidOperationException" was not handled. So if I try to set the initial value of the Value property to anything but zero of either I get this error.
[Code]...
Container Controls Access Controls At Design Time?
May 13, 2009I've been building controls for many years professionally and personally, but even back in VB6 days I just could not work this out. After all this time I remembered about it again.If I create a usercontrol/containercontrol and add one or more controls to the controls surface, I just cannot figure out how to access the controls at design time.
View 4 RepliesDraw A Rectangle Over Some Controls So That The Controls Are Partly Obscured
May 18, 2010I want to draw a rectangle over some controls so that the controls are partly obscured.
View 2 RepliesForms :: Dynamic Controls Disposal - Only 50% Of Controls Removed?
Sep 17, 2010I have a query about dynamically added controls to a form. I have a series of buttons which are created and added at run time. I have a two drop down lists and two buttons which are created at design time. Button 1 creates a series of buttons called "Test 1.x" based upon the selection of the two drop down lists. This works fine and am happy with the logic.However.... Button two should remove all the dynamically created buttons from the form.This does not happen. What does happen is that 50% of the buttons are removed starting with the first one. WHen checking the loop it only enters the loop half the amount of times that there are buttons. Very strange. When the loop is run repeatability it will remove all controls. Why will my logic not remove all the dynamically created controls at once? What is wrong with my logic?
I attach two code snippets and the .net file for your consideration.Button method which creates the dynamically created buttons from the two drop down lists and adds to form
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Count As Integer
Dim MaxHours As Integer
[code]....
Looping Controls / Migrating Among Controls In Control Array
Jun 19, 2009i have created control array , now i wann to loop around as well wann to find which control has triggered the respective event my code :
[Code]...
Remember All Controls - Object Browser In VS Contains Many Controls And Properties
Jun 10, 2011The object browser in visual studio contains many controls and properties ....so is it possible to remember in mind all these controls. Whenever i am programming in vb 2008 and for reference i look at the examples on internet i always find some new controls,properties etc which makes me confuse.So i was wondering If by any means there is a way to remember all these controls
View 4 RepliesSetting A 'default' Value To Controls (textbox) (loop Controls)?
Nov 11, 2009I 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)?
VS 2008 Loop Through Controls Doesn't Get All Controls?
Jan 21, 2011I am rather irritated at this. I have no clue why looping through controls on a form and in groupboxes leaves out 75% of the controls.
Here's the code I have:
Dim settings As String = ""
Dim gbControl As Control
Dim gbbox As Control
[Code]....
I want to have setting save all settings to an ini file, and not have to reprogram the saving routine when I add a group box or control. At random times, any number of controls can be disabled, checkboxes can be checked and unchecked, radiobuttons can be checked and unchecked. Regardless of the state of the control, I want the control to show up in the loop. But they don't. Only controls that are enabled and only checkboxes that are checked, every other control state is ignored. That's crap, and is definitely not what is needed by any programmer of any type. We're capable of determining if a control is enabled, hidden, checked, visible, and otherwise.
How do I get the controls to be included in the loop regardless of their state?
Addressing A Textual Array Of Controls - Controls("FuelBoxMin_" & IntLoop.ToString & .Text)?
Aug 20, 2011I cannot work out the correct formatting of the above type addressing for a textbox in a (sort of) array of textboxes such as
textbox_1
textbox_2
textbox_3
etc.
The controls are on Tabs but I don't think I need to include the Tab as a container control, just refer directly to the textbox on the form, but I cannot work out how this is done in VB .NET format. In VB6 it was relatively straightforward but VB .NEt seems it is different. Can anyone help me with the correct way to formulate
[Code]...
For Each...In Panel1.Controls Is Skipping Controls?
Jun 22, 2010I wanted to delete all of the TextBoxes that I put on a form that start with "tbx". The below code only deleted some of them.
For Each ctl As Control In Panel1.Controls
If ctl.Name.StartsWith("tbx") Then
ctl.Dispose()
End If
Next
So, I took it a step further in testing...Now I'm really confused about the .controls collection. When I try to delete controls from Panel1 with the below code, it only deletes every other control instead of all controls.
For Each ctl As Control In Panel1.Controls
ctl.Dispose()
Next
It looks like it deletes item(0) which moves everything back one step but then advances the pointer to the next step. For example, if the following controls exist on the form...
tbx1
tbx2
tbx3
tbx4
