I wants to create a form in a specified format where main window area will have some common links or buttons to all pages and the page area is where all the pages will be shown. Is this possible in wpf ?
Yes you can do that by using tab item and frames. You can have an idea using:
<TabItem Header="about" Name="aboutTab">
<TabControl>
<TabItem Header="REGISTRATION" Name="subTabRegistration">
<Grid>
<Frame NavigationUIVisibility="Hidden" VerticalAlignment="Top" HorizontalContentAlignment="Stretch" ClipToBounds="True" JournalOwnership="Automatic" Source="Pages/register-activate.xaml" x:Name="frameRegistration" />
</Grid>
</TabItem>
</TabControl>
</TabItem>
Related
I would like to bind a TabItem's visibility property to a bool property in my viewmodel (via converter, true=visible false=collapsed), but the visibility property on the TabItem does not hide the tab. I don't want to hide all of the tab, just individual ones.
Does anyone know how this can be achieved?
I wanted to have something similiar. I asked the developer about it, but this is not possible with Dragablz (which is Tabablz). The TabItem itself is not used in dragablz.
A workaround for this could be using materialdesign radiobuttons as tab headers instead of dragablz. Radio buttons can be collapsed.
<StackPanel Orientation="Horizontal" Margin="4">
<RadioButton x:Name="FirstTab" Style="{StaticResource MaterialDesignTabRadioButton}" Margin="4" Visibility="Collapsed" IsChecked="True" Content="FIRST" />
<RadioButton Style="{StaticResource MaterialDesignTabRadioButton}" Margin="4" IsChecked="False" Content="SECOND" />
<RadioButton Style="{StaticResource MaterialDesignTabRadioButton}" Margin="4" IsChecked="False" Content="THIRD" />
</StackPanel>
now you just have to create some grids below them, which have their visibility bound to the IsChecked attribute of the corresponding radio button. This way you can show only the grid which is bound to the currently selected radio button. You need a bool2visibility converter, maybe the default one shipped with wpf works (the one in my example is a custom one).
<Grid Visibility="{Binding IsChecked, Source={x:Reference FirstTab}, Converter={StaticResource Bool2VisibilityConverter}}">
Say I have a simple Windows 10 UWP app
<Page
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
<!-- etc -->
>
<Grid>
<ListView>
<TextBlock Text="Sample text"/>
<TextBlock Text="Sample text"/>
<TextBlock Text="Sample text"/>
<!-- & many more -->
</ListView>
</Grid>
</Page>
The large number of ListView items causes it to overflow and scroll, as expected:
However, if I need to add another control as a sibling of the ListView, like so (replacing the Grid with a StackPanel for simplicity)
<Page...>
<StackPanel>
<ListView>
<TextBlock Text="Sample text"/>
<TextBlock Text="Sample text"/>
<TextBlock Text="Sample text"/>
...
</ListView>
<StackPanel>
<TextBlock Text="StackPanel at the bottom"/>
<Button Content="Click me"/>
</StackPanel>
</StackPanel>
</Page>
then the scrollbar disappears and the ListView isn't scrollable anymore. The content just gets clipped / cut off past the bottom of the window.
What's going on here and how can I make it scroll again?
The key to this is the ScrollViewer control. The reason ListViews and GridViews can scroll in the first place is because they have a ScrollViewer built in.
When you place a ListView inside a parent layout panel (e.g. a StackPanel or a Grid row), if the ListView height is greater than the viewport, the parent panel becomes the full height of the ListView. But StackPanel doesn't implement ScrollViewer so it can't scroll, and you end up with a StackPanel extending off the bottom edge of the viewport.
The fix is simple: put the parent layout panel in question inside a ScrollViewer
<Page...>
<ScrollViewer VerticalScrollBarVisibility="Auto"> <!--default is "Visible"-->
<StackPanel>
<ListView>
<TextBlock Text="Sample text"/>
<TextBlock Text="Sample text"/>
<TextBlock Text="Sample text"/>
...
</ListView>
<StackPanel>
<TextBlock Text="StackPanel at the bottom"/>
<Button Content="Click me"/>
</StackPanel>
</StackPanel>
</ScrollViewer>
</Page>
ScrollViewer API reference - MSDN
Going to add more context to binaryfunt's answer: It depends on the layout logic of the panel you're using!
To note beforehand: ListView internally has it's own ScrollViewer by default.
When laying out it's children, a Grid will typically tell its children they should fit inside the bounds the grid. In the case of the ListView, it's happy to do this, and it's own internal ScrollViewer handles it's children scrolling.
StackPanel on the other hand tells its children they have virtually infinite space to layout in in it's stacking direction - so your ListView has no idea it has to constrain itself to the height of your StackPanel because the StackPanel does not tell it do so and so the ListView never needs to use it's own ScrollViewer as it thinks it has infinite space.
Now, put a StackPanel in a ScrollViewer by itself doesn't help - if you put that ScrollViewer inside a StackPanel you have the same problem as the ListView does - it thinks it has infinite space and so never needs to scroll it's content. But, put the ScrollViewer in a Grid and the grid will give the ScrollViewer a defined size to layout in, and so anything inside the ScrollViewer will now scroll if it get's too big.
Put a ListView inside this StackPanel inside this ScrollViewer? The ListView still thinks it has infinite space and so never needs to use its own scroller, BUT it's also disables and virtualization and performance enhancements the ListView would normally have, as they rely on it's interal ScrollViewer actually being put a too use.
(binaryfunt's XAML answer will work.)
Currently I got a requirement to implement a control something like traditional masked text box. But unfortunately there is no first party control (some third party paid control is available like Component 1) available in uwp. If anybody has any idea to create the same please share.
You can make a TextBox background transparent and have a TextBlock behind it with your watermark text. Bind the visibility to the TextBox Text.IsEmpty property using a BooleanToVisibilityConverter
<Grid Grid.Row="0" Margin="5" Background="White">
<TextBlock VerticalAlignment="Center" Margin="3"
Foreground="SteelBlue"
Visibility="{Binding ElementName=MyTextBox, Path=Text.IsEmpty, Converter={StaticResource BooleanToVisibilityConverter}}">Type in here...</TextBlock>
<TextBox Background="Transparent"
x:Name="MyTextBox"/>
</Grid>
In your resources:
<BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/>
Have a look at PlaceHolderText Property on TextBox control.
I want to disply all my elipse in the same point using itemControl wpf. by default itemsControl use vertical stackpanel. there's a way to simply remove the StackPanel?
Thanks
Sure, you can give a custom ItemsPanel by either set one in your ItemsControl ControlTemplate, and using the IsItemsHost property to tell which of the panels is the receiver of the items.
<ItemsControl.Template>
<ControlTemplate>
<Canvas IsItemsHost="True"/>
</ControlTemplate>
</ItemsControl.Template>
or by supplying a custom ItemsPanel and telling the position in the template by an ItemsPresenter.
<ItemsControl.Template>
<ControlTemplate>
<ItemsPresenter/>
</ControlTemplate>
</ItemsControl.Template>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<Canvas/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
I'm hoping to create a control that I call an "AutoCompleteListBox". If you've ever used hotmail to send an e-mail the way the to: address line works is what I wish to create. You have what looks like an input box and as you type you get a dropdown of matching objects. Once you select an object (contact) it is added into the input box as a rectangular object. Multiple objects can be added this way and the input box acts like a wrap panel. You can delete objects by backspacing them or clicking the x button on each.
My approach was to begin by subclassing ItemsControl. I've started to write its control template which is basically a wrap panel that I want to show the bound items + a text box. I don't know how to get both the bound items and the textbox to be in the same wrap panel. Here's what I have:
<Style TargetType="ctrl:AutoCompleteListBox">
<Setter Property="Width" Value="200"/>
<Setter Property="Height" Value="100"/>
<Setter Property="Background" Value="White"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ctrl:AutoCompleteListBox">
<ScrollViewer x:Name="RootScrollViewer" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled" Padding="0" Background="{TemplateBinding Background}">
<toolkit:WrapPanel IsItemsHost="True">
<!--Items Bound To ItemSource Go Here-->
<TextBox x:Name="txtInput"/>
</toolkit:WrapPanel>
</ScrollViewer>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I don't know how to express what I want. I know you can use an "ItemsPresenter" in the control template which does show the bound items but then how can I add my textbox into the same panel as the bound items?
I'd greatly appreciate any help. Is this the right way to even go about it? Thanks very much.
Subclassing the items control is a good start, but I think the controltemplate should be setup a bit different. The Silverlight toolkit contains an excellent autocomplete box that you can use for this exact purpose. Combine this with a separate items control and you should have something that can be styled to look exactly like the live mail "To" field.
<ControlTemplate>
<toolkit:WrapPanel>
<ItemsControl ItemsSource="{TemplateBinding Items}">
<ItemsControl.ItemsPanel>
<StackPanel Orientation="Horizontal"/>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<!-- Add data template for the previously added items here -->
</ItemsControl.ItemTemplate>
</ItemsControl>
<toolkit:AutoCompleteBox ItemsSource="{TemplateBinding AutoCompleteItems}" />
</toolkit:WrapPanel>
</ControlTemplate>