I have a Region in the top left of the WPF application which I want to be my global button bar where the user chooses which screen they want to view, and the appropriate content will then be displayed in the main region. THere will also be a sub navigation region in the top right with sub-menu options within that screen, eg if the user clicked "Maintenance" from the main menu, the sub menu would show options for New, Update, Delete, Edit etc.
What I want to have is a way to create a custom menu bar by simply specifying a list of Text button names, and ICommand/Parameter pairs for the action to invoke on button click. The natural way to do this would be have a MenuButtonViewModel class with dependency properties Title, Command and CommandParameter. One more would also be needed, IsSelected, so there is some visual way for the user to see which screen you are currently on, so it needs to behave like a toggle button, but where only one button in the group can be selected at a time. I can then have a UserControl where the content of the bar binds to an ObservableCollection and uses data templates to render the button bar.
I have tried a few ways of doing this so far but cannot figure out a way that gives me the visual behaviour I want. These are my requirements
1) Button to change background to a different Brush OnMouseOver
2) When button is selected, a different Brush is displayed as the background until a new button in the group is selected, like a togglebutton IsSelected behaviour
3) Only one button in the group can be selected at a time
The ways I have tried to do this so far are
1) Extending RadioButton with my own class, adding dependency properties for command and commandparameter. Setting all controls to have the same group Id. Data template to override display of radio button to make it look like a visual button with triggers for mouseover and isselected.
This works fine, except for one thing. Once you select a radio button in a group, there is no way to deselect all options in the radio button group. So if you navigate to "maintenance" and then click the sub menu for "Countries" for example, then you are displayed the country maintenance screen. If you then go to a different area of the app and select "Deal Entry" from the main menu, you are taken to the deal entry screen. If you then click "Maintenance", it displays the generic "maintenance" content and brings back the sub menu control for maintenance, where "Country" is selected in the radio button group, but this is undesirable. When you navigate back to Maintenance, it should deselect all sub menu options, display the generic maintenance landing page content and let you select a sub menu option before displaying that screens content. The first time you load Maintenance, nothing is selected, but once you have chosen an option, then there is no way to have nothing selected again when you reload the maintenance screen.
2) I then tried extending a ListBox, styling it with a horizontal stackpanel for the content, each listboxitem is a menubuttonViewModel. This allows me to only select a single option at a time and to clear the selection when you navigate away from the page. It also lets me change the background when you mouse over each listboxitem.
The bit I can't get working with the listbox is to have the background different on the IsSelected trigger. There seems to be some trigger on the default ListBoxItem template that overrides anything you specify in CSS so no matter what trigger I put on the listboxitem or menubuttonviewmodel style, the background simply does not change. I think I need to redefine the data and content template for listboxitem, but only have it apply for this listbox, so it can't be a global template change to all listboxitems - as I want to be able to use listboxes elsewhere in the app without inheriting this behaviour.
Can anyone give their thoughts on these two approaches and how to perhaps solve the issues I'm having to make one of them work in the way I want, particularly if you can advise how I can override the content/data template for the listboxitems in my style so they do not use the default triggers, and I can get the IsSelected trigger working for me?
If I understood correctly, you would want to clear the selection on the RadioButtons from the Sub-Menu each time you navigate back from another Main Menu option.
In order to solve this, you could have every Radio Button "unchecked" by manually setting the RadioButton´s IsChecked property value to false. A possible solution could be the following:
If you want to clear any checked option from the Sub-Menu everytime you navigate to a different section of the Main Menu, you could first notify to the Sub-Menu´s ViewModel by publishing an event using the EventAggregator after selecting and clicking a different MainMenu button, from the SelectionChangedEventHandler method of the Main Menu´s ViewModel.
Therefore, the Sub-Menu EventHandler of the published event would update each RadioButton´s IsChecked property value to false, which it could be accomplished by using a "Two-Way" Binding between each IsChecked property defined on the View, and each boolean "RadioButton1IsChecked" property implemented on the ViewModel.
I hope this helped you.
I am working with Silverlight property grid (http://slg40.codeplex.com/). I would like to put "Button" as property in this grid and implement the "click" functionality of this button.
Main task is: There is workspace(schema) with objects, properties of object are shown in grid, some of objects have their own schema as a property. I want to show this in grid when the button is clicked.
Now only simple types can be shown in grid. If I add complex type it shows result of "ToString()" and small button. By the way this can be a solution but I can't override Click of this button.
Maybe someone had already solved such task?
I want to be able to allow a user to set a module as a Favorite by toggling a star icon that is placed on each tab. Is this possible using Infragistics XamTabs?
The technique you want to use is to template the tab header. You should create a style that targets the TabItemEx and provide a HeaderTemplate.
In my sample I added a Radio Button and an Image to the header which are bound to an IsFavorite property in my viewmodel causing the image to be visible when the radio button is checked. The VisConverter converter is being used to toggle the visibility property of the image.
See more details and my sample here.
http://community.infragistics.com/forums/p/67815/344088.aspx#344088
I need to have button have 4 images that are changed by the application action.
I want to define new class ButtonEx that inherit from the Button class.
So, i did it by adding 'silverlight template control' and it to be inherit from control to Button.
Now, i cant see the images whan i put this ButtonEx on the page.
What i did wrong ?
How to fix it ?
( same code work fine in WPF )
Can you post any of your code? Did you create a visual style for it in themes\generic.xaml? Did you set the default style key?
I recently followed this tutuorial for a TextBox, you could so something similar for your button... http://www.silverlightshow.net/items/Create-a-Custom-Control-Inheriting-from-TextBox.aspx
Store your images as resources then create a user control that has
- a button and the content of the button is an image
- a property to select the image from the resources
use the usercontrol as your button.
please post a code sample...
to inherit form button you simply need this.
public class ButtonEx:Button
{
}
this will have all functionality that button has.
if you want new template just add it in Themes/generic.xaml
From your question its not clear that you really need to be subclassing Button. Maybe you can get by with just copying and modifying the template of button (Blend helps for this), or just have the image as content bound to some property for the application to change (using a ValueConverter perhaps).
I have a combo box on a form and when I rollover the combo box with my mouse, the OnMouseOver event causes a graident view to appear. How would I go about ensuring that it doesn't do that. What I want is for the combo box to remain white.
What you need to do is create a new Template for your ComboBox. This is easiest to do in Blend; right click on the control and choose to edit a copy of the template.
You will want to remove the animations from the MouseOver VisualState.