|
use syncwcf library from codeplex: http://syncwcf.codeplex.com it doees exactly what you need: allows to use the sync-style service interface without writing nor generating code for them
|
|
|
|
|
Hi all,
I have a simple listview that has a currently selected item binding as follow:
<ListView HorizontalAlignment="Left" Width="300" Name="ServiceListView" SelectionChanged="ServiceListView_SelectionChanged" SelectedValue="{Binding CurrentlySelectedService}" Grid.Row="0" Grid.RowSpan="2" Grid.Column="0">
<ListView.View>
<GridView>
<GridViewColumn Header="Machine">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Label x:Name="ServiceNames" Content="{Binding ServiceController.MachineName}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="Service Names">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Label x:Name="ServiceNames" Content="{Binding ServiceController.ServiceName}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="Service status">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Label Width="80" x:Name="ServiceStatus" Content="{Binding ServiceController.CurrentStatus}" Background="{Binding ServiceController.ServiceStatusColour}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
And obviously in the constructor I do the following to enable bindings:
DataContext = this;
The problem:
The binding to SelectedValue="{Binding CurrentlySelectedService}" works 100% (well, sort of).
In my DEV environment it works 100% and the currently selected item works 100%.
But for some or other reason when I deploy this to a Windows server 2003 box (with .Net 3.5 installed), the binding doesn't work anymore...
How can I debug this issue?
Has anyone experienced this problem before?
This is not my first time experiencing this problem. I've seen this a few times now, but it seems to be very PC specific. It will work 100% on one pc, and then completely FAILS on another.
Any help would be much appreciated.
|
|
|
|
|
You need Snoop[^] - run it on the target machine, and see what your listview thinks the DataContext is.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
|
|
|
|
|
Got snoop ... didn't think of using it.
Why the DataContext ? If the DataContext is not the correct one, how does one go about setting the correct one ...?
|
|
|
|
|
The reason I suggested this, is that it sounds like the DataContext is behaving differently between the two machines. Snoop can be used to help you determine if this is the case.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
|
|
|
|
|
i have thousands of data to be bound in the combobox. it takes minutes to display the popup while clicking the combo. i have heared about the virtualisation. but how it could be applied to the ComboBox.
|
|
|
|
|
I would say that thousands of data should not be binded to the combobox. It will make the combobox very ugly and very slow to load. You should probably use another control (e.g. datagrid or listbox with paging.)
Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)
Microsoft MVP (Silverlight), WPF/Silverlight Insiders
|
|
|
|
|
I'd have to agree there. It's one thing to get them in the drop down, but then the user will have to select them. This sounds more like a pattern for doing a look ahead box or something similar (a text box that as you type, begins to build a partial drop down based on the text you've already entered).
If you had to do it for some reason, the key would be:
1. Use an ObservableCollection<t> when you bind to the list. This will make the control aware when the list changes.
2. Append to the list over time
That's more tricky - the async calls of course fire when done so you have the entire list and you'd still be waiting. Better would be to find a way to chunk up your calls, i.e. perhaps call alphabetically and bring back everything beginning with A, then B, etc. Then append to the list. This will make the drop down appear sooner and it will grow dynamically, but the question then becomes - is this even useful, if the user still has to wait a minute for a full drop down?
|
|
|
|
|
Hi,
I am working on RSS feeds using silver light. In this I need to access each item(feed) from the RSS feeds link and display it in my silver light application. I implemented a code for this but by this I am able to access only some RSS feeds only. It is not working for all the RSS links. I am getting error while accessing the feed items from RSS feeds.
Please reply me if anyone have any idea how I can make it work for all the RSS links and solve this error while accessing.
The code I have used is from:
http://www.dotnetcurry.com/ShowArticle.aspx?ID=252
Thanks in advance.
|
|
|
|
|
|
|
Basically, this binds the data context of the ItemsSource to the data context of the ItemsControl (which works it's way up the visual tree until it finds a data context). This means that the datacontext you are looking for is assigned here:
c.DataContext = (null == c.DataContext) ? _letterDatas : null;
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
|
|
|
|
|
Hi Guys,
In the general xaml code, i have written as follows,
<pre>Page x:Class="UI_eHTMP.Window1" Title="eHTMP Application"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Height="800" Width="1400" Loaded="Window_Loaded" Title="applc1" Background="OldLace"></page></pre>
when I run the appliction and try to restore and Maximize the windows page, i dont see the task bar and vertical and horizantal scroll bars to scroll,
what to be included in the xaml code? Even the title is also not displayed when i have mentioned in the xaml title.
Please help me in resolvign this.
Thank you,
Ramm
|
|
|
|
|
0) I don't see in the XAML you posted where you're telling the window to scroll.
1) Scrollbars are typically set to "Auto" so they only appear when scrolling is needed.
2) Learn how to post code here. It's ALMOST IMPOSSIBLE to read code when it's posted with a proportional font.
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
|
|
|
|
|
Hi John,
In the 3rd line of my post, i have entered the xaml code.. just the first few lines..
Thank You,
Ramm
|
|
|
|
|
Guys,
I am able to scroll it now using <ScrollViewer></ScrollViewer>..
I removed the Height="800" Width="1400" from the xaml code.. its fine now.
Thank you,
Ramm
|
|
|
|
|
Hi,
I have a silverlight application with a login page. I want to check login members against Active Directory members and then redirect them to respective pages. I have done Active directory validation in dot net.But in Silverlight, I am unable to find "System.DirectoryServices" dll. Any help regarding this will be very useful.Thanks in advance  .
Gomathi R
|
|
|
|
|
You're not going to be able to use Active Directory in a Silverlight app.
You'll need a Windows-specific solution since Active Directory is Windows specific and
Silverlight is not.
You could possibly use Active Directory on a server, maybe through a WCF or other web
service.
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://www.codeproject.com/script/Forums/Images/coffee.gif)
|
|
|
|
|
|
We had the same challenge. The key is to stand it up behind a secured WCF service. The WCF service can make the call to check active directory and then return the status to the Silverlight client. You'll also want to look into generating a token or some unique way to "tag" the session as authenticated on Silverlight so that subsequent calls don't have to re-authenticate every time.
|
|
|
|
|
hi,
Keep in mind, All the protocolls must be implemented to be accessible from the Silverlight sandbox. As no socket support is available right now, its not possible for 3rd party devs to do that now...
You only could write a webservice proxy and access that proxy from the app. Probably the most easy and approachable way to do it right now.
|
|
|
|
|
what you need to do is to implement a web service that queries the AD and use this web service as a proxy to retrieve AD information
|
|
|
|
|
Hi,
I have two problems which iam listing below:
1.
I need to measure the exact cold start up time for WPF application.
I tried measuring the startup time manually, but its showing very inconsistent value. Sometime its showing 11 sec but sometime 3 secs.
Can anyone please tell me the exact reason for this inconsistency and any way i can measure the exact start up time for the WPF application .
2.Is it possible to measure the startup time module wise, like (Presentation framework loading time, PresentationCore loading time, Windows Base loading time, FontService startuptime an finally application startup time).
Thanks
|
|
|
|
|
If you're concerned about cold start time, this[^] should be your bible.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
|
|
|
|
|
Thanks for the reply ,Actually this article talks about only the improvement points for performance. I need to know how exactly to measure the startup time as it shows different value for different trials.
Thanks
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
