Accessing template member! - WPF Discussion Boards

Great job Karl. This is fantastic news - you are THE man.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

I am writing a WPF app, and want to have the app minimise to the system tray, the only examples of how to do this involve adding a reference to System.Window.Forms, is adding this reference bad practice or accepted as needed to be done to get some functionality.

Thanks

Mark

I see no reason to treat this as a bad practice. I have done this exact thing once, and I reference Windows.Forms all the time to get the File Dialogs (I just like the old ones better).

Hi,

I want to asssociate a BitMap image with the ListboxItems in a WPF Listbox. But I could not find any property in the ListboxItem which can get associated with an image. I am loading the ListBox programatically and want to display images on the listboxitems dynamically.

Could anyone let me know how can i acheive this in the WPF ListBox?

Thanx in advance.

I would be tempted to do something like this:

<DataTemplate x:Key="MyTemplate">
  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition/>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
      <ColumnDefinition/>
      <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <Image Grid.Column=1 Width="{Binding myImage.Width}" Height="{Binding myImage.Height}" Source="{Binding myImage}" />
    <TextBlock Width="Auto" Grid.Column="1" 
      Text="{Binding MyTextItem}" />
  </Grid>
</DataTemplate>

Then, your listbox would look like this:

<ListBox Padding="3" HorizontalAlignment="Left" Width="Auto" 
  ItemTemplate="{DynamicResource MyTemplate}" 
  ItemsSource="{Binding Mode=Default, Source={StaticResource MyDataSource}}" 
  VerticalAlignment="Top" Height="Auto"/>

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Hi Pete,
Thanx for the reply.
My actual requirement is to load the listbox with ToolboxItems. Each ToolboxItem has its own image which i want to associate with the listboxitem when i create a new listboxitem. I tried multiple ways of doing it programatically but unable to get the desired result.

Without using the xaml file how can i add items to the listbox programatically. One of the ways is setting the ItemsSource property to collection containing the items. I could populate a Treeview just by creating new TreeviewItems in the code and adding them to the Treeview.But the same did not happen incase of Listbox, am I missing anything?

Also, I am unable to group items within the listbox, could you please suggest how i can acheive this?

Thanx in adv.

Hi,

Also, using the DataTemplate given above I am not able to view any image on the Listboxitem. And sometime a XamlParseException is thrown at runtime, which is as follows

connot convert string in attribute 'Source' to object of type 'System.Windows.Media.ImageSource'

Any idea what am I missing? Is it that I cannot load a Bitmap image on the ListBoxItem??

I have a template and would like to access a UIElement. Because it is a template, it is not an object unless it is a static object. How can I create a static object in a template? The x:Name=”someName” are only to access inside template NOT outside. So we get an error when we try to access from a class. i.e. in constructor I can’t access someName. This also means that I cannot write a function when there is a change.
How this can be done?
Best regards
Agha

<Button x:Class="WpfApplication1.DoubleCharBtn"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

<Button.Template>
<ControlTemplate>
<Border x:Name="br" Background="Blue" CornerRadius="3" BorderBrush="Black">
<StackPanel Orientation="Vertical">
<TextBlock x:Name="TextUpperChar" HorizontalAlignment="Center" Text="{Binding UpperLetter}" />
<TextBlock x:Name="TextLowerChar" HorizontalAlignment="Center" Text="{Binding LowerLetter}" />
</StackPanel>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="Button.IsPressed" Value="True">
<Setter TargetName="br" Property="Background" Value="Red"/>
<Setter TargetName="TextUpperChar" Property="Background">
<Setter.Value>
<LinearGradientBrush>
<GradientStop Offset="1" Color="DarkBlue"/>
<GradientStop Offset="0.5" Color="Blue"/>
<GradientStop Offset="0" Color="DarkBlue"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Button.Template>

</Button>

namespace WpfApplication1
{
/// <summary>
/// Interaction logic for DoubleCharBtn.xaml
/// </summary>
public partial class DoubleCharBtn : Button
{

internal static readonly DependencyProperty UpperCharProperty =
DependencyProperty.Register(
"UpperChar",
typeof(char),
typeof(DoubleCharBtn),
new FrameworkPropertyMetadata(' ', FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender, UpperCharChanged));

public static void UpperCharChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
char TempChar = (char)e.NewValue;
DoubleCharBtn doubleCharBtn = (DoubleCharBtn)d;
// doubleCharBtn.TextUpperChar.Text = string.Format("{0}",TempChar);

}

public char UpperChar
{
set { SetValue(UpperCharProperty, value); }
get { return (char)GetValue(UpperCharProperty); }
}

internal static readonly DependencyProperty LowerCharProperty =
DependencyProperty.Register(
"LowerChar",
typeof(char),
typeof(DoubleCharBtn),
new FrameworkPropertyMetadata(' ', FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender, LowerCharChanged));

public static void LowerCharChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
char TempChar = (char)e.NewValue;
DoubleCharBtn doubleCharBtn = (DoubleCharBtn)d;
// doubleCharBtn.TextLowerChar.Text = string.Format("{0}", TempChar);
}

public char LowerChar
{
set { SetValue(LowerCharProperty, value); }
get { return (char)GetValue(LowerCharProperty); }
}

public DoubleCharBtn()
{
InitializeComponent();
}
}
}

This might help you: Microsoft[^]

Hi,

I try to leave my control as thay are in case i maximaize my window - but i always find them in disorder in my window.

this is the xaml code ...

<StackPanel VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
        <TextBox Name="Title" Text="Title" Background="Yellow" Width="Auto" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Height="30" VerticalAlignment="Top"/>
        <ListView Name="RecentReport" Width="Auto" Height="180" VerticalAlignment="Center" HorizontalContentAlignment="Center" />
        <StackPanel Height="52" Name="stackPanel1" Width="Auto" VerticalAlignment="Bottom" Background="Aqua" Orientation="Horizontal" />
    </StackPanel>

Is this what you wanted?

<DockPanel LastChildFill="True" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<TextBox DockPanel.Dock="Top" Name="Title" Text="Title" Background="Yellow" Height="30" />
<StackPanel DockPanel.Dock="Bottom" Height="52" Name="stackPanel1" Background="Aqua" Orientation="Horizontal" />
<ListView Name="RecentReport" />
</DockPanel>

Hi,

Does anybody know if VS2008 has an internal web browser, for launching Silverlight apps ? I believed have seen screenshots with that...

WolveFred

This one?

View/Other Windows/Web Browser (Ctrl-Alt-R)

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

No. I dont think VS 2008 has an internal web browser. not even in VS2010.. Smile | :)

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

That's not true : there is one.

* Right click a page (.aspx, or on a folder)
* Select Browse With...
* Choose your browser : internal
* Click Set as Default
* Click Browse

Working through this... just completed part 3.

Accessing the ASP.NET Authentication, Profile and Role Service in Silverlight[^]

I can't get the images to appear in Firefox but I can in IE and Google Chrome - despite the fact that the latter is not "officially" supported. ???

Any ideas for things to tweak in Firefox?

Update: It now works as of this morning - no code changes. Must have been a caching issue.

Kevin

modified on Sunday, February 8, 2009 1:17 PM

It should work in Firefox as well.

Are you using that sample or did you change something in that sample?

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

It works now (tried again this morning) so must have been a caching problem.

Kevin

okay. Great! Smile | :)

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Can any one tell me, if I need to populate the items of a Panel dynamically using Binding, how can I do so?
A panel has got a Children property, unlike other collection control ListView, Listbox that offers a property named ItemsSource or stuffs like that. How can i make this thing work for a panel.

To clarify the question- How to bind the items displayed inside a FishEyePanel ..or is it possible at all?

usually, What I can do is

<stackpanel>

however, I want to generate the number of button using Binding...is it possible?

Moim Hossain
R&D Project Manager
BlueCielo ECM Solutions BV

What I would do here is put a ListView inside your panel, and then generate the buttons inside ListView Items.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

hmm nope,

I got my problems solutions ..

<ItemsControl ItemsSource="{Binding ConfiguredViews}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<panels:FishEyePanel/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>

here is what I was thinking.

Thanks for bothering :P

Moim Hossain
R&D Project Manager
BlueCielo ECM Solutions BV

Hi,
i need to create a software (about restaurant,hotel,etc..etc..),
an important request i received from my manager is to create a Forms Authentication with many different Login and Passwords where each user will get a different privilege to restrict the access.
An example:

- Login = guest ...can only access to the software without delete,add or edit the data.

- Login = adminstrator ... can do everything .

- Login = employee 01 ... can access to the software but can delete,add and edit just some (specific) data.

- Login = employee 02 .... can access to the software but can delete,add and edit just some (specific) data.

..... and so on ...

This software will be used in 5 different department in my office so each department will have different privilege/permission to access in the software.

Now i have not a clear idea to develop this feature ,never i made it as my knowledge are poor.
I will use SqlServer 2005 for the database ,Linq toSql and Wpf(interface) of course so i thought to create a table with SqlServer as follow:

CREATE TABLE [dbo].[TblLogin] (
[Name] [varchar] (30) ,
[username] [varchar] (20),
[password] [varchar] (20) ,
[Email] [varchar] (50) ,
[Roles] [varchar] (50)
)
GO

but after i get stuck i don't know how go ahead Frown | :(

If you have any idea/suggestion let me know it will be so useful for me,i'm available to learn ...i have a lot of thing to learn .

Have a good job.

Nice Regards,

Bye

Well, you could always use the MembershipProvider and RolesProvider classes. To use these, you need to add the relevant tables into SQL Server (added by the command aspnet_regsql[^]). Then, you need to add a System.Web entry into your config file, and add the MembershipProvider and RoleProvider sections in here. That's it - you now have access to a role mechanism. It's up to you to provide the login screen and admin screens, but that should be fairly trivial.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Hi Pete

for my poor knowledge never i used a System.Web in past time so i have some question to understand better what i need to do but before to post my question do you have some link to show me so i can ask not foolish question.

Thanks my friend Smile | :)

Have a nice job.

Bye