I want to be able to show a different usercontrol in a single container depending on a criteria, something like
Quote:
if a = 1 then
show usercontrol1
else if a = 2 then
show usercontrol2
etc
I could add all of them at a time and just tweak their visibility per each case but is that the best method for such task?
I'm trying to test/debug a WPF UserControl library in Visual Studio 2010 with the User Control Test Container.exe. I keep getting the error "Assembly [...] doesn't contain any UserControls." This should be simple, and every msdn article and blog tutorial I've looked at suggests that it should all just work perfectly and magically.[code]Project File has debug options set to open UserControlTestContainer.exe, with ./MyTestLibrary.dll as a command-line arg.
View 2 RepliesHow do I show a continuous time stamp on a label in windows form.
I am using vs.2005 - vb language
see the code below i placed form and made it isMDIcontainer=trueadded treeview to this form and docked to leftadded split Containeradded 2 child forms namde Form3 & Form4
everything ok, except one thing the child forms not showing up
Public Class Form2
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
Currently, the following code shows a blank line if Address2 (which comes from the database) is Null. How can I condition on the value of <%#Container.DataItem("Address2")%> so I can get rid of the blank line if Address2 does not exist (or is Null) in the database? If code in the code-behind is needed
<asp:repeater id="rptLabels" runat="server">
<HeaderTemplate></HeaderTemplate>
<ItemTemplate>
[Code]....
how to set the container of a picturebox as groupbox1 at run time?
View 3 RepliesI am trying to extend the functionality of the ToolStripPanel control (which is a panel hosting ToolStrips that can be moved during design-time, as I'm sure you know).One thing I wanted to add was a 'ToolStrips' property, which would be a collection of ToolStrips the user can edit via the collection editor in the designer. So instead of manually placing ToolStrips on the ToolStripPanel via the toolbox, the user can just use the property to add/remove (or even edit) them. This is of course similar to how you add/remove/edit TabPages in a TabControl.So, I came up with this code, which I have used successfully in the past for other controls:
Public Class cToolStripPanel
Inherits ToolStripPanel
Private _ToolStrips As New ToolStripCollection(Me)[CODE]....
The cToolStripPanel control inherits the ToolStripPanel control and adds the ToolStrips property, which is of type ToolStripCollection. That class, in turn, inherits the Collection(Of ToolStrip). In the InsertItem method, I add the 'item' ToolStrip to the cToolStripPanel. Of course I also need to override the RemoveItem / ClearItems methods but that's for another time.I am 100% sure that this code should works, at least for other controls. If you replace ToolStrip with Button (for example), I can add buttons via the property during design-time just fine, exactly the way I want it.But it seems that ToolStrips are special. When I try to Add a toolstrip (via the collection editor Add button), a null reference exception occurs. I've been trying to debug this all day and I've finally come up with a possible candidate for the problem... (I've actually used design-time debugging for the first time ever, which was pretty cool, and which showed me that the InsertItem method is not run!)
I think the problem is that the collection editor cannot create a new instance of the ToolStrip class. I can remember when trying to inherit from the ToolStrip, I was forced to add a constructor, because the ToolStrip "has more than one constructor that can be called with no arguments".Perhaps this is causing my problem? Do I (and if yes, how?) have to somehow control the creation of a new instance of the ToolStrip? Or am I completely off track and that is not what is causing the problem? I'm sure that it's a problem with the ToolStrip class, since I can use the exact same method with other controls just fine. It's only when I change the type to ToolStrip that it starts getting angry at me....
i have taken some Group Boxes and Panels within my form,
as mentioned now i want to make just transparent these containers
i mean it(container) just hide itself and illustrates its controls and also
it's background containing form.Mohammad Arif Mustafa arif_mustafa@live.com
I'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 RepliesIm trying to show a tooltip when it reaches a certain time, or when my Datetimepicker matches the system clock. My program iwll bem inimized and the timer will be running while the application is in the notification area, Then of course when it reaches the time, The ballon pops up saying "Your break is getting close" but everytime I close my application the Notification pops up instantly.
Public Class Form1
Dim UpTimeStr As String
Dim dtpStr(3) As String
[code]......
I made this splash screen and since I just started working on my project, the app takes less than two seconds to load and the time for splash screen is not enough? I have tried to put System.Threading.Thread.Sleep(5000)but where? I put it in the code of the splash screen, then it waits 5 seconds before showing the splashscreen and I put it in the main program, then the splash screen is out THEN it waits 5 seconds after the splash screen is gone then it loads.
View 17 Repliesvb Label3.Text = Format(Now, "mm:hh")
That is my issue. It's giving me 24 hour time, and I want 12 hour time, with out showing AM or PM.
How do I show a continuous time stamp on a label in windows form.
I am using vs.2005 - vb language
there I am using a ToolTip on a Label that I am using as a place holder, so the same Label is being recreated over and over in diferent locations each time the ToolTip Message is diferent. The problem is the mesages is all showing ap at the same time overlaping one another.
[Code]...
I have a VB (.NET3.5) project like this:
- form1: IsMDIForm = true.
- form2: adding a list view with 2 records, select first record, and register the event ItemSelectionChanged.
- Add form2 as a child of form1 (form2.MDIParent = form1).
- When use "form2.Show()" -> the event ItemSelectionChanged firing three time:
+ 1st: SelectedItem = 1
+ 2nd: SelectedItem = 0
+ 3rd: SelectedItem = 1
I want to know the rootcause (not Solution) of thi issue, can anyone help me !?
Project code: http://www.mediafire.com/?hhhdzh5te1wrod4
I have a usercontrol which overrides the property Text. But this property is not shown at design time.If I rename it to caption or value it is shown in properties at design time but Text is not shown.
public Class SomeControl
Inherits System.Windows.Forms.UserControl
Public Overrides Property Text() As String
[code].....
Showing of my forms is somewhat slow, I am thinking of loading them when the app is started but I am worried it will take too much memory. What other means can I do to make the showing of the form faster?
View 8 RepliesI make a program upon sending emails to my friends using smtp. The problem is that I have confusions why my another form will not show until it is not finished sending all of the messages. I want my next form to show how many percent were finished but the problem is that my form will show only until all the emails are sent on my listbox. I put my code on the load event of the for
View 5 RepliesI am currently utilizing the StatusStrip and a form which auto-close after a second or two, is there other funkier way of showing some status like if a save has been successful or not? For exceptions I am already using ErrorProvider.
View 3 RepliesI have a Setup form that calls the main form after the user clicks on a button. This works fine in VB6, but in VB.Net, the original form either hangs around if I call the new form with .ShowDialog() or the new form exits immediately if I call the new form with .Show()...
View 1 RepliesI have a menu which when clicked will load form which take quite sometimes (although not very long) but the user keeps on clicking the menu and so the "not responding" message appears on the title bar of the app. I am thinking of displaying "Loading....Please Wait" so that users will stop clicking the menu or will wait until the loading of the form is completed. I tried these code but the form is still displayed even if form has loaded completely. [Code] I like to use the same concept also when the user clicked the save button, to tell the user to wait while changes are being saved.
View 36 RepliesI'm developing a windows application using vb.net (VS 2005 and windows XP) I've set images (transparent png files) to buttons.I do it importing images into the resources of the project I could do it for most of the buttons of this project, but today I noticed new images I set, not showing in run time. In the development form I can see all images on buttons, but when I run the application, buttons with new images are missing. This happens to the new images I import and set as button images. I tried few times new images I set are not showing.
View 18 RepliesI have ComboBoxes on my form that have two functions.Editable / AutoComplete - SuggestAppend Non Editable. If the ComboBox is not editable, I am looking to set the SelectedIndex = 0 but not to set any SelectedIndex if the ComboBox is editable/AutoComplete. I have the following in my code and all the values are right; however, all ComboBoxes are showing a default item regardless. Any ideas? [Code]
View 3 RepliesI have created a series of custom user controls for a wizard interface that I am making. Each user control represents one step in the wizard and really shouldn't be used outside of the wizard. The thing that is bugging me is that each wizard step user control shows up in the toolbox of components to insert into a form.
Is it possible to hide a user control from the toolbox? Better yet is it possible to hide a user control from other classes not in the same namespace of an assembly? Is this a good approach or should I think of a different approach?
I'm not sure if this is a bad way of building an application but let's say I have 30 WPF Windows for different screens in my application. I want to build them into a DLL so I was wondering if it is bad design to instead of creating each window as a window, if i can have 1 window that hosts whichever screen is open. So the windows will actually be a usercontrol, or at least act like one. So when you want to go to a different screen, you would just change the content of the 1 window to the content of the "usercontrol" that you want displayed.
View 3 RepliesI am trying to troubleshoot a VB.NET project that contains UserControls (actually, several of them that are displaying the same issues). I am trying to get them to build under x64, but it is impossible. In x86 or AnyCPU, the UserControl builds and shows up in the Toolbox, so I can add or modify it in the forms that require it. In x64, the controls disappear from the Toolbox, I get warnings during build (the current project builds though), I can't see any of the forms - I get errors (please see below) - and projects that require the project with the form as an import will not build.
When I was studying what these UserControls are so that I can maybe rebuild them from scratch, I downloaded code from a book - great learning tool, but I get the same errors[code]...
I'm using Visual Basic in Visual Studio 10 Beta 2.
I did make a library with UserControls In VS2010 and I did a build. After that I want to use my UserControls from the library in a new project in VS2010.
How do I get the UserControls in the ToolBox when I'm desiging? I tried some import statements, but without result.
[Code]...
I also set a reference to the dll file of the library, but still I don't the UserControl in the TooBox.
I am working on a project and there are about 30 controls that I need to call and update at runtime. I have named the controls day0 - day35 (it is a calendar). Basically, at runtime, I need to call each control's setDate function to display the day number. When I run it, the array just has null/empty.This is the array I am trying to use in the code behind. The controls are names day0-day35.
Private dateArr() As ucMonthDay = {day0, day1, day2, day3, day4, day5, _
day6, day7, day8, day9, _
day10, day11, day12, day13, day14, day15, day16, day17, day18, day19, _[code]....
When this gets called, I get a null pointer exception.I do not understand why the controls are not in the array?
I created an item user_control that has a textbox, button, etc. which will intentionally collect the total quantity of items the user wants.
I dynamically create a few intances of user_control on page_load. If you click the add button for the item quantity it will add to a session variable. however when the user enters a different quantity in the textbox and clicks the add button the total is of the original value of the textbox.
How to get the value the the user has typed in to the textbox to add to total???
I've create a stripped down example below: [UserControl] [Page] [CodeBehind]
UserControl...
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="BomItem.ascx.vb" Inherits="DynamicUserControl.BomItem" %>
<style type="text/css">
[Code].....
When we create an inherited control then is the Designer still needed or not? Should usercontrols be disposable?What is the difference of using Base and Me when we are setting default properties of our usercontrols?[code]
View 4 Replies