wsick/Fayde

Inspired by Silverlight; XAML engine using Javascript and rendering to the HTML5 Canvas.

Ronnie Barnard

@Ronmenator

ok let me try

awesome, working perfectly

thank you

Brad Sickles

@BSick7

no problem

Blacksun

@angelcalvasp

microsoft to aquire xamarin

Brad Sickles

@BSick7

i saw that

it was inevitable

Blacksun

@angelcalvasp

Hope they purchase gorilla player next

Ronnie Barnard

@Ronmenator

@BSick7 it seems that the scrollviewer always scrolls to the bottom, is this by design? the same issue is still occurring if you clear a listbox's bound items, and add a new set, it will always scroll down to the bottom.

Brad Sickles

@BSick7

It's most likely just "remembering" it's scroll info and not invalidating

Ronnie Barnard

@Ronmenator

is it a quick fix?

Brad Sickles

@BSick7

Quick to build, potentially, but can have negative side effects

Over invalidation can degrade performance

Ronnie Barnard

@Ronmenator

understandable, problem is that the list box is not usable in its current state as clearing out the data and adding new data will cause the list box content to disappear and the only way to get it back is the user has to scroll up manually.

if a developer could have a way to call a method to invalidate, then it is up to the developer to do and not the control

Brad Sickles

@BSick7

@Ronmenator can you verify if this behavior happens when ListBox ItemsPanelTemplateis not VirtualizingStackPanel, but instead StackPanel

Ronnie Barnard

@Ronmenator

@BSick7 I changed it to virtualizing and normal stackpanel, both has the same effect

https://onedrive.live.com/redir?resid=396B05A6DB21C50A!148046&authkey=!ANWRVP7NsfETDZw&ithint=file%2czip

link to a test harness for these issues

on the Second tab, just start typing the first letters

Ronnie Barnard

@Ronmenator

The list below it will filter down on those that contain the character sequence you are typing. But you will see the moment you start typing, it will seem like all data disappeared, but notice the scrollbar in the right bottom.

Brad Sickles

@BSick7

Thanks

Ronnie Barnard

@Ronmenator

@BSick7 where would you suggest I start looking at fixing the scrollbar issue, would it be in Selector.ts where you intercept the Clear on the ItemsSource?

Brad Sickles

@BSick7

@Ronmenator I would recommend looking at items removed/added,

Invalidate scroll info

However if using virtualization, let the virtualizing stack panel invalidate during measure

Selector makes the most sense

Brad Sickles

@BSick7

@Ronmenator can't fix the error right now (blocked github), but i know what needs to change for that error you just reported

Ronnie Barnard

@Ronmenator

ok, no problem, found it while working through the listbox issue.

Brad Sickles

@BSick7

@Ronmenator fixed in latest

Ronnie Barnard

@Ronmenator

awesome, thank you

Ronnie Barnard

@Ronmenator

@BSick7 I have a very weird issue occuring in textbox

                           <ScrollViewer BorderThickness="0"
                                        x:Name="ScrollElement" 
                                        IsTabStop="False"
                                        Background="{x:Null}"
                                        VerticalAlignment="Stretch" 
                                        HorizontalAlignment="Stretch" 
                                        VerticalScrollBarVisibility="Auto"
                                        HorizontalScrollBarVisibility="Disabled">
                                <ScrollViewer x:Name="ContentElement" 
                                            BorderThickness="0" 
                                            IsTabStop="False"
                                            Margin="4,0,2,2" 
                                            Padding="0,0,5,0"
                                            Background="{x:Null}"
                                            HorizontalAlignment="{TemplateBinding TextAlignment}"
                                            VerticalScrollBarVisibility="Disabled"
                                            HorizontalScrollBarVisibility="Disabled" />
                            </ScrollViewer>

this is from the TextBox template in metro. I added the HorizontalAlighnment on the inner scrollviewer

to do the TextAlignment, all works perfectly

but, with that HorizontalAlignment present in the template, the cursor dissapears when at the end of the text string

if you remove it, then the Cursor shows correctly after the last character

and if you type when it is not there, the characters are inserted and the cursor comes back every so often but it's size is varying

only if it is at the end of the text

Do you know where I can look to resolve this one?

I feel that it is going to be down in Menirva in the layout updater

Brad Sickles

@BSick7

Ya definitely in minerva

There is an entire section dedicated to rendering cursor position and calculating cursor position from mouse coordinated

Ronnie Barnard

@Ronmenator

Ok, someting to go and investigate

Brad Sickles

@BSick7

Please add a git issue

Ronnie Barnard

@Ronmenator

Will do, I will see if I can fix it before I push it up to git

Serge Baltic

@hypersw

hi,
Is it possible to do MVVM with data templates, like in the original XAML?
I'm trying to reproduce this,

    <Window.Resources>
        <DataTemplate DataType="{x:Type local:ItemViewModel}">
            <TextBlock Text="{Binding DisplayName}" FontWeight="Bold" />
        </DataTemplate>
    </Window.Resources>
    <StackPanel>
        <ListBox ItemsSource="{Binding ListItems}" />
    </StackPanel>

where ListItems viewmodel prop is a list of type ItemViewModel.
With Fayde, the listbox item content presenters won't make use of the data template.

Ronnie Barnard

@Ronmenator

@hypersw Yes you can, Change Window.Resources to Page.Resources or Application.Resources, depending where you are placing this Xaml

Where communities thrive

People

Repo info

Activity