Is there a way you can pin a wpf dockpanel? I have searched on the net and I have not found any functionality that will allow this. What I want is to lock the size of a dockpanel's dock regions. For example I want the right region"s width to stay locked all the time. The only solutions to this that I have seen are 3rd party controls. Does anyone know of a way to restrict the width of these regions? Thanx in advance.
You can set the MaxWidth property of the control you are docking.
According to your additional explanations, you have the following layout:
<DockPanel>
<ItemsControl DockPanel.Dock="Left"/>
<StackPanel DockPanel.Dock="Right"/>
</DockPanel>
The first thing I recommend is to add LastChildFill="False" to the DockPanel so your left and right parts grow unrelated.
Then you have to decide what happens when the number of items in the ItemsControl increase. You can make a horizontal scrollbar appear, make them wrap, and so on.
Yes, I had LastChildFill = "False" already set, plus the my items control is already in a scrollviewer with a horizontal template applied. With this setup the initial layout looks great in the row. The only problem is when the itemscontrol grows too big and hits the right dock, it will always force the right dock to go smaller even though the minwidth is set on the grid that is contained within. Here is an example of my code:
<DockPanel Grid.Row="1" LastChildFill="False">
<!--Horizontal template applied-->
<ScrollViewer DockPanel.Dock="Left">
<ItemsControl/>
</ScrollViewer>
<Grid DockPanel.Dock="Right" MinWidth="200">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Button Grid.Column="0"/>
<Button Grid.Column="1"/>
</Grid>
</DockPanel>
Thanks for the help . . . any other ideas?
Related
I am using a telerik TreeView in WPF, and I'm using a HierarchicalDataTemplate to show the nodes. Nodes represent matched items - which can be left only, right only, equal or inequal (a tree based comparison).
I am currently using a DataTemplateSelector to select from one of four templates, which all look similar to the following:
<HierarchicalDataTemplate x:Key="EqualTreeItemTemplate" ItemsSource="{Binding}">
<Grid Name="rowGrid" HorizontalAlignment="Stretch" Height="Auto" d:DataContext="{d:DesignInstance Carbon:ICarbonComparisonPair }">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="16" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Path Data="F1M574.042,314.611L533.8,344.398 522.251,328.798 515.235,333.988 526.786,349.593 526.782,349.596 531.978,356.603 579.235,321.622 574.042,314.611z" Stretch="Uniform" Fill="#FF000000" Width="16" Height="16" VerticalAlignment="Center" Margin="0,0,0,0" />
<TextBlock Grid.Column="1" Text="{Binding ObjectName}" Style="{StaticResource ObjectNameStyle}" Margin="4,0,0,0" />
<TextBlock Grid.Column="2" Text="{Binding ObjectName}" Style="{StaticResource ObjectNameStyle}" Margin="4,0,0,0" />
</Grid>
</HierarchicalDataTemplate>
The problem that I have is that the item content area is a different width based on the level of the tree that the item appears in. This means that the columns that I have don't line up - the text in the right hand column shifts to the right a bit for each level of the tree that you expand.
What I would like to do is specify the right hand grid column's width to be 50% of the size of the tree control as a whole, rather than 50% of the grid's natural area. I thought maybe I could do this with a binding with a RelativeSource, but I just can't seem to make it work. Is there a way to achieve this in XAML, or do I need to resort to code-behind?
If I'm understanding it correctly you want column index 2 to align across all items?
Check out the TreeListView control and see if that gives you what you need.
Silverlight demo here (just so you can see what it looks like - the WPF version is pretty much the same)
[Edit - More info]
The SharedGroupName property on ColumnDefinition is tempting but, thanks to the indent, it won't quite work - you'll end up with all of the content in column 1 or 2 being sized the same, but the pesky indent still throws it off. Check out ListView's View Property. I'm believe it's at least in the same spirit as what Telerik TreeListView is, if not darned similar in implementation.
Here's a decent writeup on how to use it. (Ironically I have that page bookmarked in a folder called "TreeGridList" so apparently at some point I had the idea to do that to accomplish something similar :) )
My application UI is divided in 2 parts. Left side is Navigation Menu and Right is View Area where the selected Menu content is displayed. Now, one of the menu is reports. I am using Tabcontrol with Header and Content Template. Template has a ViewModel as DataType and content as the respective View which is a UserControl. This TabControl is inside a scrollviewer which is set as horizontal and vertical alignment to stretch.
The user control hosts a ContentPresenter inside a Grid which is bound to a ReportHost which has a reportviewer as child. I am using this ReportViewer to generate reports.
When the user opens a report, it opens in a new tab. It works fine till the number of tabs is such that the tabheaders are contained inside the viewing area. But as soon as more tabs are added, it causes the tabcontrol width to stretch, causing the content area of the tab to stretch and the contentpresenter also stretches causing horizontal scroll to appear.
This finally result in the report to stretch and due to some reason, unknown to me, the report overlaps the Navigation Area of the UI, as if it is not a part of the UI but is overlapping it. The whole report keeps on floating on top of the View Area and Navigation menu on scrolling.
I can fix it by providing the MaxWidth to the ScrollViewer but I don't want to do that. I would like the width of the tabcontroll or the Scrolviewer to be decided purely based on available View Area. How do I do this through the code or XAML without using fixed width.
I am not sure if I was able to explain the situation. Please let me know if more information or clarification is needed. I would be more than happy to provide details.
Edit: Adding Code for information.
<DataTemplate x:Key="TabContent" DataType="{x:Type VM:ReportViewModel}">
<View:Report/>
</DataTemplate>
<DataTemplate x:Key="TabHeader" DataType="{x:Type VM:ReportViewModel}">
<ContentPresenter Content="{Binding Path=TabHeader}"
VerticalAlignment="Center"/>
</DataTemplate>
<ScrollViewer HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock HorizontalAlignment="Left" TextWrapping="Wrap"
Text="Reports" VerticalAlignment="Top" Margin="10,13,0,0"
FontSize="18.667" FontFamily="Segoe UI" Foreground="White"/>
<Border BorderThickness="0" Margin="0,50,0,0"
Background="{DynamicResource Brush_HeaderNew}" Height="50" Width="Auto"
VerticalAlignment="Top"/>
<TabControl ItemsSource="{Binding ReportItems}" Grid.Row="1" Margin="0,20,0,0"
SelectedItem="{Binding SelectedReportItem}"
ContentTemplate="{StaticResource TabContent}"
ItemTemplate="{StaticResource TabHeader}"
/>
</Grid>
</ScrollViewer>
ScrollViewer presents to its child an infinitely large area on which to set itself out, because it reasons that it can just offer scrolling if it's bigger than the space available to ScrollViewer itself. Because yours has scrolling enabled in both directions, that means the TabControl can expand as much as it likes in either direction, and it's not going to be smart enough to know that it's inside a ScrollViewer and that you want the tabs to not take advantage of this virtual space.
From the sound of things, you might want to consider moving the ScrollViewer within the TabControl so that only the contents of the tab is scrollable rather than the whole set. You should be able to do that by modifying the tab content template.
If there's a TextBlock inside a Grid, what's the best way (performance wise) to set its width and height?
Is setting them in the TextBlock's properties will be better than setting it as Grid's properties?
basically what I'm asking is which one of the following is better :
<Grid Width="200" Height="200">
<TextBlock />
</Grid>
vs
<Grid>
<TextBlock Width="200" Height="200"/>
</Grid>
<Grid Width="200" Height="200">
<TextBlock />
</Grid>
Using a Grid purely to constrain a TextBox is not really a good way to set the width of the TextBox. A Grid is more for laying out multiple controls. However this is perfectly acceptable:
<Grid Width="200" Height="200">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200" />
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="1" HorizontalAlignment="Stretch" Margin="5,0" />
</Grid>
This is along the same lines as what #Ahmed suggested.
Generally with a XAML layout the recommendation is to use a proportional layout rather than fixed sizes, so that your UI can be resized correctly with minimal oversight from any of your code. This means it is good to let the parent element dictate the size as much as possible, only used fixed sizes where you must. (Setting MinWidth/MaxWidth/etc is fine, just try to avoid explicitly setting Width where possible, the same goes for the Height properties).
I Really don't understand specifically what you are asking about !
But I really like to set my Grid to be stretched as Window and set my TextBox Width & Height to Auto Or NAN ,, then define special margins & alignments to my Textbox
In the Layout System article on MSDN there is a small section on performance but there is also a dedicated article on optimizing performance of the layout and design. Maybe there is something helpful in there.
It seems to me that this documentation does not make any claims about this issue though, it probably does not matter or the difference is negligibly small.
I don't have any stats to back this up but since WPF's rendering/layout engine works by first measuring the child elements of everything, one would assume if you manually define the size of a child element it would have a marginal effect.
In this scenario, if all you're doing is wrapping a single TextBlock element, you might be better off using something like a <Border>. If there's multiple elements, see if you can use a <StackPanel>.
In WPF, I want set a controls width to be, say, 97% of it's Parent controls ActualWidth property. How can I do this?
You can use Grid panel. E.g:
<Border>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.97*"/>
<ColumnDefinition Width="0.03*"/>
</Grid.ColumnDefinitions>
<Button Content="97%"/>
<Border Grid.Column="1" Background="Green">
</Border>
</Grid>
</Border>
Grid will occupy 100% of available border's size. First column will use 97% of it. And the rest 3% are given to border in the second column.
Hope this helps.
Cheers, Anvaka
I was wondering if I can have 2 controls in a horizontal-oriented StackPanel so that the right item should be docked to the right side of the StackPanel.
I tried the following but it didn't work:
<StackPanel Orientation="Horizontal">
<TextBlock>Left</TextBlock>
<Button Width="30" HorizontalAlignment="Right">Right<Button>
</StackPanel>
In the snippet above I want the Button to be docked to the right side of the StackPanel.
Note: I need it to be done with StackPanel, not Grid etc.
You can achieve this with a DockPanel:
<DockPanel Width="300">
<TextBlock>Left</TextBlock>
<Button HorizontalAlignment="Right">Right</Button>
</DockPanel>
The difference is that a StackPanel will arrange child elements into single line (either vertical or horizontally) whereas a DockPanel defines an area where you can arrange child elements either horizontally or vertically, relative to each other (the Dock property changes the position of an element relative to other elements within the same container. Alignment properties, such as HorizontalAlignment, change the position of an element relative to its parent element).
Update
As pointed out in the comments you can also use the FlowDirection property of a StackPanel. See #D_Bester's answer.
Yo can set FlowDirection of Stack panel to RightToLeft, and then all items will be aligned to the right side.
For those who stumble upon this question, here's how to achieve this layout with a Grid:
<Grid>
<TextBlock Text="Server:"/>
<TextBlock Text="http://127.0.0.1" HorizontalAlignment="Right"/>
</Grid>
creates
Server: http://127.0.0.1
Could not get this working using a DockPanel quite the way I wanted and reversing the flow direction of a StackPanel is troublesome. Using a grid is not an option as items inside of it may be hidden at runtime and thus I do not know the total number of columns at design time. The best and simplest solution I could come up with is:
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="1" Orientation="Horizontal">
<!-- Right aligned controls go here -->
</StackPanel>
</Grid>
This will result in controls inside of the StackPanel being aligned to the right side of the available space regardless of the number of controls - both at design and runtime. Yay! :)
This works perfectly for me. Just put the button first since you're starting on the right. If FlowDirection becomes a problem just add a StackPanel around it and specify FlowDirection="LeftToRight" for that portion. Or simply specify FlowDirection="LeftToRight" for the relevant control.
<StackPanel Orientation="Horizontal" HorizontalAlignment="Right" FlowDirection="RightToLeft">
<Button Width="40" HorizontalAlignment="Right" Margin="3">Right</Button>
<TextBlock Margin="5">Left</TextBlock>
<StackPanel FlowDirection="LeftToRight">
<my:DatePicker Height="24" Name="DatePicker1" Width="113" xmlns:my="http://schemas.microsoft.com/wpf/2008/toolkit" />
</StackPanel>
<my:DatePicker FlowDirection="LeftToRight" Height="24" Name="DatePicker1" Width="113" xmlns:my="http://schemas.microsoft.com/wpf/2008/toolkit" />
</StackPanel>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="Left" />
<Button Width="30" Grid.Column="1" >Right</Button>
</Grid>
If you are having a problem like the one I had where labels were centered in my vertical stack panel, make sure you use full width controls. Delete the Width property, or put your button in a full-width container that allows internal alignment. WPF is all about using containers to control the layout.
<StackPanel Orientation="Vertical">
<TextBlock>Left</TextBlock>
<DockPanel>
<Button HorizontalAlignment="Right">Right</Button>
</DockPanel>
</StackPanel>
Vertical StackPanel with Left Label followed by Right Button
I hope this helps.
for windows 10
use relativePanel instead of stack panel, and use
relativepanel.alignrightwithpanel="true"
for the contained elements.
Maybe not what you want if you need to avoid hard-coding size values, but sometimes I use a "shim" (Separator) for this:
<Separator Width="42"></Separator>