Silverlight ChildWindow with DataTemplate - c#

I am creating a custom ChildWindow that I want to use with a DataTemplate.
The DataTemplate will apply to the "body" of the window, but then, separate from that, I want to always display two buttons, "Save" and "Cancel".
I have no idea how to accomplish that... Any help would be greatly appreciated!

Grab a copy of your ChildWindowStyle from your SdkStyles.xaml to give you a foundation for building your custom control template on. To keep a DataContext you could throw it in a UserControl as UserControl.Resources or if you're just populating ContentPresenters etc you can put the template in your own resource dictionary or wherever you like (though you might want to specify a unique x:Key name for it.) Just depends on how you'd like to use it.
Make your desired changes to the template and also add your Buttons etc. Then you can either set it as the default by replacing the Default BasedOn value in your resource dictionary to point to it or call that style explicitly.
Personally I prefer Expression Blend for all of this and there's even some tutorials out there to help you along with a Web Search (which I might suggest first next time.) Like what you might find here... Hope this helps! :)

Related

How do I make controls extend passed a control bound or overlap with others?

I have a wpf grid setup where I have two custom buttons that are next to each other. First picture is how the design window looks like, however, functionally, it looks like the second picture. I want them to function like the grid doesn't block them (closely resembling the first picture.)
The current xml I have is based on this MSDM which is very basic.
I do not know how to proceed. Do I have to use a different control panel/container or is there a setting to allowed them to extend passed the grid if the other button isn't above it (like zpanel?)
E: I couldn't find any other questions for this, so please link to any searches/posts with information on it.
Turns out I can use canvas and just do a bit more xml to keep the design the same. I would still like to know if it is possible to overlap them in any way for future use.

Programmatically filter custom properties

I have an existing custom control library with controls which may contain properties: HeaderStyle, ModalStyle, Collapsable, etc...
In the user interface the program is currently displaying a categorized list of these properties. I am trying to update this code to hide properties they dont normally use. I have a list of properties to hide/show based on button click but I am not sure how I can hide these fields programmatically.
I would like to retain any values entered into the fields before hiding and re-display the values if the fields are shown again.
Here is a property that current exists but would like to be hidden/shown on toggle.
/// <summary>ModalStyle property for control</summary>
[XmlAttribute]
[DefaultValue(Utility.Common.Enumerations.ModalStyle.None)]
[Category(PropertyCategories.Rendering)]
[Description("Modal dialog style")]
public ModalStyle? ModalStyle
{
get { return control.ModalStyleActive; }
set { control.ModalStyle = value; }
}
My original though was to do some variant on #if DEBUG but use my own Conditional however I was unable to find a way to change my conditionals via button/toggle.
Can anyone please help with a solution to my problem? I have 20-30 controls with 20 to 30 properties that would like to be filtered.
I have two suggestions that, while they may not give you the exact functionality desired, will keep your solution much more straight forward.
First:
Since you are the library developer you should just decide what properties you want other developers to have access to though the IDE properties window. If a property is seldom used or not very useful through the IDE then just place the [Browsable(false)] attribute on it.
Second:
If you really want all properties to be visible in the IDE properties window, but want to give individuals a way of hiding the more advanced (or less used) ones, just throw them all in an 'Advanced' category. The user can then simply collapse that category and forget about them.
Also: Take a look at Oliver's answer to this question:
[how-to-show-or-hide-properties-dynamically-in-the-propertygrid]
I'm not sure to understand what you are trying to achieve.
When you use Attributes, those are static to the class. So, in your case, when you toggle a show/hide on an object, it's on an instance of the object. Also, you cannot change an attribute value at run-time.
Maybe you should try an alternate solution like creating a global
map<pair<type of object, property name>, is shown>
and update that accordingly from your editor.
And if you want to use something like a property grid, you will have a problem since it won't check your map, but it can be fixed. You could create a new class at run-time and make it a proxy to your current instance. (check on the net how to achieve that, but it's quite simple. There are 2 possibilities: compile from a string or use the ILGenerator.
Hope this help.

WPF Listbox change container at runtime

For my project i need a scatterview but let's call it a listbox for people who don't work with the surface sdk :) , and it's bound to an observablecollection of objects in my viewmodel. Depending the kind of object, i use a different datatemplate (images, video's,...)
The container for these items is by default a listboxitem.
But there is a special object where i need more than a normal listboxitem as container, so i created my customlistboxcontainer. Here if found how to use that container:
Have a databound WPF Listbox generate subclassed ListboxItems
but this is not enough. I need to check at runtime what item is added to the collection, and choose the correct container for it (listboxitem, customlistboxitem). I can't seem to get is work.
Has anybody some experienxe with this?
Thx,
Bjorn
If you need to provide a different template for different types of items I suggest providing a DataTemplateSelector for your ListBox. I think the MSDN example is pretty clear on how to implement it, but let us know if you need further help.
Update:
Here's an another tutorial to get you started.

QuickWatch-like control for .NET WinForms?

Visual Studio QuickWatch window has a hierarchical property grid control. Is a control like that available somewhere?
The default property grid control doesn't seem to work for me as it requires the objects to have an ExpandableConverter attribute to work the way I want. Although, if any of you know a way to turn the property grid into a QuickWatch-like control it would also be accepted.
Thanks.
It is very spread type of control. Each Library-of-Controls company created at least one.
http://images.google.com.ua/images?q=tree%20like%20grid
Here you have two samples:
http://www.codeproject.com/KB/grid/PropertyGridExWinForms.aspx
http://www.howtocode.net/software-development/c/propertygrid-utilities
I don't think so, its something you would have to create your self.
looks like it wouldn't be to difficult, I think its DataGridView where the first column is a custom cell that when clicked does a hit test to see if its hit a node glyph.
But i could be wrong.

Accessing TemplatePart without changing ControlTemplate?

i wonder if there is a way to access a control's templatepart from within c# for modifying the part (e.g. hiding, etc..). is it possible to get a reference to the part with pure c#?
i don't want to touch the controls template.
thanks
j.
It is possible, but its quite nasty.
On the Template there is a method called FindName, which needs two arguments: the name and the FrameworkElement that has the ControlTemplate as Template. Of course, you need to set the name of the element in the ControlTemplate...
Another more elegent solution is to use a Binding in the ControlTemplate to determine the visibility.. That way you do not need to do stuff in your code behind and you can keep it Xaml only...

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