WPF Hierarchical Data Templates are killing me - WPF Discussion Boards

You would have to look into that yourself. You might even be able to google a student version of Zam 3D (I have never heard of it).

Regards,
Thomas Stockwell

Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.

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Discounted or Free Software for Students:
DreamSpark - downloads.channel8.msdn.com
MSDN Academic Alliance - www.msdnaa.com

Do you also provide a student's version of Zam 3D on your site??

hey can anyone tell me where can I get a CTP version of ZAM 3D. It's not available on their original site anymore Hmmm | :|

Like in .NET FW 2.0, there is Anchor property to set the controls Auto arrange. It will be much helpful if anyone could share info about similar property in WPF

For objects that are placed inside a grid a combination of HorizontalAlignment, VerticalAlignment and Margin can be used to control the position in a similar way to "Anhor".

Anchor right & bottom <=> HorizontalAlignment="Right" VerticalAlignment="Bottom" Margin="<not used="">,<not used="">,<distance from="" right="" edge="">,<distance from="" bottom="" edge="">"

Anchor left & right <=> HorizontalAlignment="Stretch".

As I said the controls must be placed inside a grid;
Mihai,

Thank You

Don't think in terms of anchors ... WPF is a different beast.

As well as using Layout Grids you need to think about putting stack panels and so forth inside grids in order to get the layout of things working properly.

Simply using grids and then margins and so on will yield a UI that doesn't always scale well. Grids are good for deviding up UI but not the best way to actually position things ...

Jammer

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Ok,
I've defined a simple class called NonDataNode that has two members, Name (string) and ContainedItems (object) which will hold whatever type of object is contained by that node in the tree (couldn't be more specific because it could be just about anything). I also created another class called NonDataNodeList, which inherits from List<NonDataNode>. There are no changes in implementation, I just wanted a name that was easier to work with in XAML. ImageOutputType is a business object in my application. lib and local are namespaces defined with xmlns elements at the top of the XAML. The Window.Resources section is before the tree control.

So, the XAML for my treeview looks like this:

<TreeView Grid.Column="0" Grid.Row="2" HorizontalAlignment="Stretch" Background="Transparent" Foreground="{StaticResource TreeViewItemText}"
BorderBrush="DarkRed" BorderThickness="1" x:Name="trvNavigate" ItemTemplate="{StaticResource NonDataNodeTemplate}" >
</TreeView>

In my Window.Resources section, I've defined the following:

<HierarchicalDataTemplate DataType="local:NonDataNode" ItemsSource="{Binding Path=ContainedItems}" x:Key="NonDataNodeTemplate">
<TextBlock Text="{Binding Name}" Style="{StaticResource TreeViewNodeText}"/>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate DataType="lib:ImageOutputType">
<TextBlock Text="{Binding Name}" Style="{StaticResource TreeViewNodeText}"/>
</HierarchicalDataTemplate>

You can see that the key for the heirarchical data template is NonDataNodeTemplate and that the treeview uses that as the item template. However, when I try to run this thing, I get the following error:

Cannot find resource named '{NonDataNodeTemplate}'. Resource names are case sensitive. Error at object 'trvNavigate' in markup file 'WGAdminPanel;component/mainwindow.xaml' Line 76 Position 82.

Now, I'm sure it's something simple I'm missing, but I've been stuck on this for about 4 hours. Can someone help me? I've tried google, but so far I haven't found any examples that I can make work.

Thanks,
Will

what happens if you try this:

DataType="{x:Type local:NonDataNode}" instead of DataType="local:NonDataNode" ?

Mihai,

That fixed it. Thank you.

Hi Guys,

I have created two xaml files , 1. Page1.xaml and 2. Page2.xaml

Page1.xaml has a Hyperlink with click event associated with a method as below:

<Grid>
<TextBlock>This is a <Hyperlink Name="myLink" Click="hyperlink_Clicked">hyperlink</Hyperlink> to page 2</TextBlock>

</Grid>

In page1.xaml.cs, i have created the method hyperlink_Clicked as below:
private void hyperlink_Clicked(object sender,System.EventArgs erg)
{
System.Uri myUri = new Uri("Page2.xaml",System.UriKind.Relative );
myLink.NavigateUri = myUri;

}
However, when i click on hyperlink for the first time, it does not navigate to page2, but if i click second time it goes to page2. Am i missing anything? late Binding or early binding?

Any help , appreciated.

Thanks

happy coding!

Without having tryed to reproduce your issue I suspect that the link would only work if it is in a focused control and that it is not the case when you first click.

Setting the focus reliably can only be done in the Loaded event, as it is well undocumented! Wink | ;)

, I suggest you write something as follow:

MyControl()
{
Loaded += (sender, e) => { Focus(); };
}

A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
_________________________________________________________
My programs never have bugs, they just develop random features.

I have two sahpes created using Path which has Data Property. One Path is smaller and the other is Larger. I want to animate smaller Path and make it look like larger path. Please suggest me how to do this.

Path 1 :
path strokethickness="2.000000" stroke="#000000" fill="#000000" data="F1 M 148.692383,566.845703 L 198.179199,566.845703 L 197.963867,545.753906 L 197.757324,525.583984 L 138.201660,525.583984 C 138.201660,525.583984 139.660156,534.376953 141.660156,541.126953 C 143.660156,547.876953 148.692383,566.845703 148.692383,566.845703 Z" width="87.077" stretch="Fill"
Path 2 :
path strokethickness="2.000000" stroke="#000000" fill="#000000" data="F1 M 200.701172,444.335938 C 200.701172,444.335938 201.902344,454.123047 201.902344,467.187500 C 201.902344,477.767578 201.246582,481.021484 199.109375,489.334961 L 129.755859,489.334961 C 124.140625,485.524414 120.946777,474.328125 120.035156,463.418945 C 119.187988,453.281250 124.750488,444.418945 124.750488,444.418945 L 200.701172,444.335938 Z" stretch="Fill"

Thanks In advance.

<Window
	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	x:Class="DemoAnim.Window1"
	x:Name="Window"
	Title="Window1"
	Width="640" Height="480">
	<Window.Resources>
		<Storyboard x:Key="GrowEllipse">
			<doubleanimationusingkeyframes begintime="00:00:00" storyboard.targetname="ellipse" storyboard.targetproperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)" mode="hold" />				<SplineDoubleKeyFrame KeyTime="00:00:00" Value="1"/>
				<SplineDoubleKeyFrame KeyTime="00:00:01" Value="1.643"/>
			</DoubleAnimationUsingKeyFrames>
			<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="ellipse" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)">
				<SplineDoubleKeyFrame KeyTime="00:00:00" Value="1"/>
				<SplineDoubleKeyFrame KeyTime="00:00:01" Value="1.643"/>
			</DoubleAnimationUsingKeyFrames>
			<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="ellipse" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)">
				<SplineDoubleKeyFrame KeyTime="00:00:00" Value="0"/>
				<SplineDoubleKeyFrame KeyTime="00:00:01" Value="0"/>
			</DoubleAnimationUsingKeyFrames>
			<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="ellipse" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)">
				<SplineDoubleKeyFrame KeyTime="00:00:00" Value="0"/>
				<SplineDoubleKeyFrame KeyTime="00:00:01" Value="0"/>
			</DoubleAnimationUsingKeyFrames>
		</Storyboard>
	</Window.Resources>
	<Window.Triggers>
		<EventTrigger RoutedEvent="FrameworkElement.Loaded">
			<BeginStoryboard Storyboard="{StaticResource GrowEllipse}"/>
		</EventTrigger>
	</Window.Triggers>
	<Grid x:Name="LayoutRoot">
		<Ellipse Fill="#FFFF0000" Stroke="#FF000000" Margin="176,127,0,214" StrokeThickness="5" Width="112" HorizontalAlignment="Left" x:Name="ellipse" RenderTransformOrigin="0.5,0.5">
			<Ellipse.RenderTransform>
				<TransformGroup>
					<ScaleTransform ScaleX="1" ScaleY="1"/>
					<SkewTransform AngleX="0" AngleY="0"/>
					<RotateTransform Angle="0"/>
					<TranslateTransform X="0" Y="0"/>
				</TransformGroup>
			</Ellipse.RenderTransform>
		</Ellipse>
		<Ellipse Fill="#FFFF0000" Stroke="#FF000000" StrokeThickness="5" Margin="0,91,75,178" Width="184" HorizontalAlignment="Right"/>
	</Grid>
</Window>

Jammer

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I would be very grateful to anyone who would explain me what's wrong with my code.

In the code below I'm creating TextBoxes dynamically when user clicks on the TextBlock. I want each new TextBox be focused (i.e. the blinking cursor to be in the TextBox), but it works only for the first one. 2-nd, 3-rd and following TextBoxes became focused only when I switch to another tab in Firefox and than switch back again. How can I make the last created TextBoxes focused?

using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;

namespace TextBoxCase
{
    public partial class Page : UserControl
    {
        public Page()
        {
            InitializeComponent();

            TextBlock txtBlock = new TextBlock();
            txtBlock.Text = "Create new TexBox!";
            txtBlock.MouseLeftButtonDown += txtBlockClick;
            panel.Children.Add(txtBlock);
        }

        void txtBlockClick(object sender, MouseButtonEventArgs e)
        {
            TextBox txtBox = new TextBox();
            txtBox.Loaded += new RoutedEventHandler(txtBox_Loaded);
            panel.Children.Add(txtBox);
        }

        void txtBox_Loaded(object sender, RoutedEventArgs e)
        {
            ((TextBox)sender).Focus();
        }
    }
}

In the xaml code I only have StackPanel named "panel".

Alex Skye wrote:
((TextBox)sender).Focus();

Maybe you can switch '((TextBox)sender).Focus();' with '((TextBox)sender).Activate();'

If this doesn't work will you post the way you fixed it?

Thanks

Can anybody share some piece of code about how to maintain session for every user logging in through WPF browser application.

[Message Deleted]

Mis$Fit wrote:
have been created a wpf listview consisiting gridview now i want to change the color where my gridview column has "Failed" value....how i can do this

Use a DataTrigger.

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plz anyone can give me a sample code oor a link that can help me...

Google has lots, but perhaps this[^] one from our very own RockStar might help.

Deja View - the feeling that you've seen this post before.

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Why do folks delete OP ???

Jammer

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Jammer wrote:
Why do folks delete OP ???

Because they're stupid.

Deja View - the feeling that you've seen this post before.

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HAHA!

Jammer

Going where everyone here has gone before! Smile | :)

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Hi,
can u help me know how to proceed with maintaining session state in wpf browser application.