- DropThings: Open Source ASP.NET 3.5 AJAX Portal - new and improved
-
Omar AL Zabir (author of Building a Web 2.0 Portal with ASP.NET 3.5) updated his very cool ASP.NET AJAX Portal application with 3.5 features, Workflow Foundation and new C# 3.0 features. Play with it here: http://www.dropthings.com/
Check out the details...
- A Live Mesh Moment
-
While I was out in the bush near Krueger national park in South Africa recently I found a great use for Live 
Mesh... After a full day of seeing some excellent big game I had a ton of photos to show for my effort.
Later that night, back in the lodge, I was briefly able to get on the spotty, very low bandwidth wireless network to work for me. So I shared my pictures using live mesh and immediately shared getting a cloud hosted backup of my precious photos. As they were uploading I was thinking about how much I wanted to share this experience with my wife and kids who where half a world away and fast asleep.
I thought it would be fun to make the kitchen laptop display my latest pictures. So I "connected" to my wife's machine and effectively got a terminal server session from 10,000+ miles away. 
It was exactly like I was sitting at the keyboard of our kitchen laptop. Even over the very bad network, I was quickly able to change her screen saver to point to the new live mesh folder with my great pictures.
When they got up that morning, my five year old son was the first to notice pictures of giraffes and lions on the kitchen laptop! The magic of shared experiences through live mesh!
Throughout the trip whenever I was able to get a little network connectivity a few more pictures would get uploaded and by the time I got the MS office in Johannesburg my family had a full copy of my adventures.
Thanks Mesh.
- Very Simple .NET Thumbnail Creation Code
-
When I was working the update for my Ajax demo, I needed to create thumb nail from a director of photos. There are tons of tools out there to do this, but I thought I'd share the very simple code I used.
It takes all the jpgs in the root path and creates 160x120 thumbnails of them. It also copies the original photo into fullpath.
namespace ThumbNailer
{
class Program
{
static void Main(string[] args)
{
string rootPath = @"C:\Users\brada\Desktop\ForDemo";
string thumbPath = Path.Combine(rootPath, "Thumb");
if (Directory.Exists(thumbPath)) DirectoryDelete(thumbPath);
Directory.CreateDirectory(thumbPath);
int imageNumber = 0;
foreach (string s in Directory.GetFiles(rootPath, "*.jpg"))
{
imageNumber++;
Console.WriteLine("{0}:{1}", imageNumber, s);
Image i = Image.FromFile(s);
Image thumb = i.GetThumbnailImage(160, 120, null, IntPtr.Zero);
thumb.Save(Path.Combine(thumbPath, GetName(imageNumber)));
}
}
static void DirectoryDelete(string directoryName)
{
foreach (string filename in Directory.GetFiles(directoryName))
{
File.Delete(filename);
}
Directory.Delete(directoryName);
}
static string GetName(int imageNumber)
{
return String.Format("{0}.jpg", imageNumber);
}
}
}
Update: A couple of folks asked me about how to do this in ASP.NET... Bertrand has a much more complete example of that here:
http://dotnetslackers.com/articles/aspnet/Generating-Image-Thumbnails-in-ASP-NET.aspx
http://weblogs.asp.net/bleroy/archive/2007/12/05/what-interpolationmode-and-compositingquality-to-use-when-generating-thumbnails-via-system-drawing.aspx
- Great User Experience Example in a Business Application
-
DNR-TV has a great talk\demo with Billy Hollis on a next generation business applications in WPF and Silverlight. Billy is working with a customer to provide a temp worker to job matching services. So far the application is in WPF, but they are planning to create a Silverlight version as well. Watch the web cast for a full demo.
A few things I thought was cool:
- They use visual clues effectively to direct the users attention (for example per-entity model pop-ups)
- They multiple-module editing model. Many records can be edited at the same time. There is great navigation and notification support to manage all of this.
- Dirty tracking seems nicely done.
Billy, we are all looking forward to playing with the real thing!
Here are a few screen shots:
- ASP.NET Ajax Roadmap Published
-
Bertrand recently published our roadmap for ASP.NET Ajax.
Our goal is to describe some of the proposed features that we are considering investing in future releases of ASP.NET AJAX, Visual Web Developer, and the ASP.NET AJAX Control Toolkit.
We really appreciate your feedback, so this document is intended as much for you to provide an input to our direction as well as to give some indication of what the teams are investing in.
We'd love to hear your thoughts!
- WPF Composite Application Guidance is Live
-
A very common pattern for business focused applications is the "Composite Application Pattern". Over the last few months our P&P team has been working with industry leaders and the product teams in Microsoft to develop an sample application and a framework for building composite applications in WPF.
If you are looking at building a WPF business focused application, you should really check this out.. all the documentation, source code and even unit tests are included!
Check it out! Composite Application Guidance for WPF
- Loving the South African Developer Community
-
I just got back from South Africa and I am happy to report that the .NET Developer community is very strong there.
User's Group Meetings in in Johannesburg and Cape Town
- User group meeting in Johannesburg - thanks for setting this up Craig Nicholson.. I had a great time showing off Silverlight 2. We had lot of fun talking about Silverlight wit these slides and demo that I did. I also showed HardRock DeepZoom, the video wall and HSN.TV
- User group meeting in Cape Town - Thanks to Hilton Giesenow for setting this up. This time I did a drill down into the ASP.NET MVC framework. The response was excellent! Thanks folks for your questions and interest! Here is the slides and demo..
Mix Essentials in Johannesburg and Cape Town
We had over 664 developers\designers attend the events in both cities… A little over 3/5th of them were developers and the vast majority of them were active ASP.NET developers. Just about everyone was already on VS2008.
Keynote:
We kicked off the day with keynote highlighting Microsoft’s investment in UX. I got drafted to do a breif bit on to show off some of the great work we are doing in WPF for SP1. So I showed the very cool WPF Bitmaps effects demo ScottGu showed at Mix '08 in Vegas… Judging from the comments afterward, I think it got a few people thinking about what is possible with a desktop applications. People were impressed that the CPU was not being chewed up by this..
For the rest of the day we split up – the designers when to a different room and I kept all of the developers. I did three sessions covering the full web development space. The retention rate was really good… just about everyone stuck around for the end.
Silverlight 2:
Next up I did an hour fifteen minute demo on Silverlight 2 development. I focused on end-to-end development, not just the UI glitz side of Silverlight and the audience responded very where. Rather than going through a bunch of slides I created an application from scratch that does read\write data access via WCF and LINQ as well as local storage via Isolated storage Here is part of the flow I used: http://blogs.msdn.com/brada/archive/2008/06/26/data-focused-silverlight-demo.aspx and http://blogs.msdn.com/brada/archive/2008/06/23/using-asp-net-authentication-in-a-web-service-with-silverlight.aspx. Thanks Scott Morrison for your help with this! Here are the slides I used to kick it off.
Ajax:
I had a great time doing this ajax demo… It was basically a reprise of my Mix 08 talk which is an all demo talk.. I could tell people really loved it! Because I had just come back from Safari, I re-themed it with my pictures.
MVC:
I split the last talk on the “future of ASP.NET” into two parts… Part 1 was on MVC. The “no viewstate” and the “IDs not mangled” were winners! Folks generally seemed to get that they did not have to move to ASP.NET MVC. The two consistent big asks where for better\more ajax support and some sort of reusable component support. I think we are well on our way to address both of those. Here are the slides and demo I used.
Dynamic Data:
This talk was a real crowd pleaser. I started off by showing how to change an existing site into being Dynamic Data aware and this really drove home the point about the value Dynamic Data adds. http://blogs.msdn.com/brada/archive/2008/06/20/asp-net-dynamicdata-an-introductory-demo.aspx . By this point ½ the room was already sold… but there was much more. I then used the wizard to show off all the customization capabilities of DD. That pulled the rest of them in. http://blogs.msdn.com/brada/archive/2008/06/27/asp-net-dynamic-data-customizing-the-ui.aspx . The questions here were all about support for different data sources. NHibernate, plain old objects, etc. I think we have a great story here and I wish I would have had time to demo it. Here are the slides I used
Closing
I had a little fun to close out the event. Through the day I had been throwing out giveaways (t-shirts\balls\hats) whenever someone asked a question or pointed out a bug I had made (there were a few!). But I was left with a big Microsoft keyboard that I didn’t want to through. So I ask for a volunteer to come up and code something on stage like I had done all day! I chose creating a LINQ model over top of Northwind as I did that like 5 different times during the event so I thought it was fair. The victims.. ah, I mean volunteers at the Cape Town and Johannesburg events did well! They started off kind of shaky and made me nervous, but they got in and nailed it! It was a good fun time for all as the audience “helped” out a bit by yelling suggestions. One guy even said “you owe me ½ that keyboard” when he finally go it ;-). Oh, and some folks asked me about the zooming tool I used to zoom in on the screen. It is called ZoomIt.
Here are a few blog posts I have already seen from the event..
http://liamb.com/2008/06/23/brad-abrams-visits-south-africa/
http://metallemon.blogspot.com/2008/06/mix-essentials-2008.html
http://www.fremus.co.za/blog/2008/06/first-experiences-with-visual-studio-2008/
I'd love to hear your feedback\thoughts on this... and if you blogged on the event please let me know and I will add your link here.
Oh, and I did spent a few days on Safari at Mala Mala adjacent to Krueger national park. I was amazed at the big game viewing... I highly recommend it. Here are some photos.
- Updated Talk: Building Great AJAX Applications from Scratch Using ASP.NET 3.5 and Visual Studio 2008
-
For my Mix Essentials talk in South Africa I updated my Mix08 talk Building Great AJAX Applications from Scratch Using ASP.NET 3.5 and Visual Studio 2008 to have a little more Africa feel... I used some photos from my safari at Mala Mala here this week.
Download the working sample and a set of starter demo files.
Hope you enjoy it!
- ASP.NET Dynamic Data: Customizing the UI
-
In my last post on Dynamic Data, I showed what Dynamic Data adds to the current ASP.NET data story. In this post I show how to customize the UI with Metadata, field templates, and page templates.
I start off by showing off the Dynamic Data Wizard.
File\New WebSite
Create a new connection, in this case using SqlExpress
It may take a minute, but the wizard will load the database metadata.. let's select just a few tables for this demo
The next step is customizing the project that gets generated. For this demo, we will Add All.
Next, we can do some further customization of the end application..
The resulting application looks great. Notice the automatic filtering, navigation between tables, editing and validation.
Custom Metadata
Dynamic Data works off the metadata in the data model. As you see from above there is already a lot of this in the database. But we can customize it and add more.
In NorthwindDataContextPartialClass.cs,
We customize the error message to be more friendly..
[Required(ErrorMessage="Please fill in the product name")]
public object ProductName {
Set a maximize string length
[StringLength (20)]
public object QuantityPerUnit {
And customize formatting
[DisplayFormat(DataFormatString="{0:C}")]
public object UnitPrice {
There are many other customization, and it is an extensible system, so you can add your own!
Custom Field Templates
In the DynamicData\FieldTempates directory you will find some default field templates. Dynamic Data uses these to render values based on their type. As an example, change the Text template as such:
String(
<asp:Literal runat="server" ID="Literal1" Text="<%# FieldValueString %>" />
)
Now, clearly this particular modification is not that useful.... But for example if you wanted to change the check box rendering to say "True" or "False". That is easily done by editing the boolean template as such:
<asp:Label runat="server" ID="label"></asp:Label>
public partial class BooleanField : System.Web.DynamicData.FieldTemplateUserControl {
protected override void OnDataBinding(EventArgs e) {
base.OnDataBinding(e);
label.Text = "False";
object val = FieldValue;
if (val != null && Convert.ToBoolean(FieldValue))
label.Text = "True";
}
public override Control DataControl {
get {
return label;
}
}
}
Now, that readers as:
There are a bunch of other things you can do... Use third party controls, etc.
Custom Page Templates
In the DynamicData\PageTemplates directory you will find the default rendering for all the kinds of pages. Changing these templates changes how all "Lists" or "ListDetails" are rendered.
From the URL, you can see that the table in we are using is "Products" and we are using the "List" view. Change the List.aspx template as follows:
<h2>My Customization: <%= table.DisplayName%></h2>
But notice, Categories does not have this customization.
That is because we have defined a further customization just for the Categories table. Look in DynamicPages\CustomPages\Categories\List.aspx
In this post I show how to customize the UI with Metadata, field templates, and page templates. You can get the final project here.
Enjoy!
- Data focused Silverlight demo
-
Yet still more time on traveling, I thought I'd do a little demo of a data oriented scenario with Silverlight.
Here is what we are after:
The data for the app is loaded from a Linq model and sent to the Silverlight client via a WCF services.
As the user makes changes to the grid, we asynchronously update the Linq model on the service.
The app uses local storage to cache the data on the local machine to reduce network calls.
Create a new Silverlight application and associated web site.
Let's start by creating a data model in the web site.
Then drag over the Employees table.
Then, Select Photo and delete it. It is a large binary blob that we don't want to be sending back and forth.
Then, because we are going to expose this over a WCF service, let's make it Serializable.
Now let's add the WCF service. Be sure to select the Silverlight-enabled WCF service.
Then the implantation is straight forward. In this method you can customize based on the user's role, do paging, etc. For now, I will just take the first 15 for this demo.
[OperationContract]
public IEnumerable<Employee> GetAllEmployees()
{
var context = new NorthwindDataContext();
var q = from employee in context.Employees
select employee;
return q.Take(15).ToList();
}
Now in the client, we need to add a reference to this service.
Then define a very simple UI...
<StackPanel>
<Button x:Name="btn1" Width="100" Height="50" Content="Load Grid" Click="btn1_Click" RenderTransformOrigin="0.5,0.5"></Button>
<my:DataGrid x:Name="dataGrid" ></my:DataGrid>
<TextBlock x:Name="label"></TextBlock>
</StackPanel>
And handle the button click
private void btn1_Click(object sender, RoutedEventArgs e)
{
var client = new EmployeeService.EmployeesServiceClient();
client.GetAllEmployeesAsync();
client.GetAllEmployeesCompleted += new EventHandler<GetAllEmployeesCompletedEventArgs>(client_GetAllEmployeesCompleted);
label.Text = "Sending Request";
}
void client_GetAllEmployeesCompleted(object sender, GetAllEmployeesCompletedEventArgs e)
{
dataGrid.ItemsSource = e.Result;
label.Text = "Got results from network";
}
Now let's send up the changes as the user changes the values in the grid.
What we want to do is sign up for changes on each row. The interesting thing here is that we recycle the rows, so we have to be careful to not sign up for an event more than once. The solution we came up with was to listen for the Loading and Unloading row events and register, unregiser the events on each.
So DataGrid looks like this:
<my:DataGrid Width="600" Height="200" x:Name="dataGrid" UnloadingRow="dataGrid_UnloadingRow" LoadingRow="dataGrid_LoadingRow" AutoGenerateColumns="True"></my:DataGrid>
And the code:
private void dataGrid_LoadingRow(object sender, DataGridRowEventArgs e)
{
((Employee)e.Row.DataContext).PropertyChanged +=
new PropertyChangedEventHandler(Page_PropertyChanged);
}
private void dataGrid_UnloadingRow(object sender, DataGridRowEventArgs e)
{
((Employee)e.Row.DataContext).PropertyChanged -=
new PropertyChangedEventHandler(Page_PropertyChanged);
}
void Page_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
Employee ep = sender as Employee;
label.Text = "Employee " + ep.EmployeeID + " changed. Updating network";
}
With this, as the user changes values in the grid, this PropertyChanged event is called.
Now all we need to do is call the server with the changed data.
To do that, let's go back and add a new web service.
public void UpdateEmployee(Employee employee)
{
NorthwindDataContext context = new NorthwindDataContext();
var oldEmployee = (from e in context.Employees
where e.EmployeeID == employee.EmployeeID
select e).First();
oldEmployee.FirstName = employee.FirstName;
oldEmployee.LastName = employee.LastName;
// add the rest of the properites
context.SubmitChanges();
}
Note: There are of course easier\better ways to do this sort of updating in linq... http://msdn.microsoft.com/en-us/library/bb425822.aspx
Then back to the Silverlight client and update the reference
Now, add a few lines to call this method and we are set.
void Page_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
Employee ep = sender as Employee;
label.Text = "Employee " + ep.EmployeeID + " changed. Updating network";
var client = new EmployeeService.EmployeesServiceClient();
client.UpdateEmployeeCompleted += new EventHandler<AsyncCompletedEventArgs>(client_UpdateEmployeeCompleted);
client.UpdateEmployeeAsync(ep,ep.EmployeeID);
}
void client_UpdateEmployeeCompleted(object sender, AsyncCompletedEventArgs e)
{
label.Text = "Employee ID"+e.UserState+" successfully updated";
}
Run it and it works great!
Make changes, refresh to be sure the changes are reflected in the underlying datamodel.
OK, for a final step, let's see if we can cache this data offline in Silverlight's per-application Isolated Storage.
Add the following to the page class
private IsolatedStorageSettings appSettings =
IsolatedStorageSettings.ApplicationSettings;
To client_GetAllEmployeesCompleted add
appSettings["backStore"] = e.Result;
appSettings.Save();
This saves the backStore into the local store.
To the Page constructor add
if (appSettings.Contains("backStore"))
{
label.Text = "loading data from local store";
dataGrid.ItemsSource = appSettings["backStore"] as IEnumerable;
}
else
{
label.Text = "No local data";
}
If there is data in the store, we use it.
Run it... the first time, no data..
Hit load and refresh and you should have local data
Now, just to be sure things are working the way we expect, right click on the Silverlight control, select Application Storage and Delete this one for this app. Notice it says zero as a rounding issue,there is so data there.
Hit refresh and it is back to no data. Just as we expected.
In this post we:
Got the data for the app is loaded from a Linq model and sent to the Silverlight client via a WCF services.
As the user makes changes to the grid, we asynchronously update the Linq model on the service.
The app uses local storage to cache the data on the local machine to reduce network calls.
Download the full sample here.
- WatermarkedTextBox for Silverlight 2 Beta 2
-
One breaking change you may have noticed between Silverlight 2 Beta 1 and Beta 2 is that WatermarkedTextBox is no longer available in the Silverlight SDK (System.Windows.Controls.Extended.dll).
We decided to remove the control because in a future version of Silverlight, we will be adding a “Watermark” property to TextBox. Given this upcoming change, it does not make sense to have "WatermarkedTextBox" as a separate control, so we decided to remove the control from Silverlight 2.
Kathy has all the details on her blog, but you can download the WatermarkedTextBox source code and unit test here.
- Using ASP.NET Authentication in a Web Service with Silverlight
-
A reader recently asked me to expand on the ASP.NET Authentication + Silverlight concept I started.. Specifically they wanted to do know how they can have a web service that returns different results depending on who calls the service (and what role they are in).
Here is my quick walk through of adding that capability to the Silverlight+ASP.NET AppServices sample.
First, let's look at the scenario we are trying to enable. I wanted to add a "Fire Bob" button. Hopefully, no line of business application has a "fire employee" button, but I thought it showed of the concepts well. Clearly only managers should be able to fire bob, so the button should be grayed out if you are not logged in or logged in but not in the manager role.
Logging as manager enables the button and clicking on it actually does the firing and reports status. Notice the background color is a user preference of manager.
And when logged in as an employee, the button is grayed out.
Defining the service
The first step to enabling this is to define a web service that will fire the employee and offer a way to check to see if you can fire the employee.
In the web project, add a new item and select the new (in Beta2) Silverlight-enabled WCF service
Then define the service as such:
using System;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.Web;
[ServiceContract(Namespace = "")]
[AspNetCompatibilityRequirements(RequirementsMode =
AspNetCompatibilityRequirementsMode.Allowed)]
public class FireEmployeeService2
{
[OperationContract]
public void FireEmployee(string employeeName)
{
if (CanFireEmployees())
{
DoTheDirtyWork(employeeName);
}
}
public void DoTheDirtyWork(string employeeName)
{
//Proceed to fire the employee
}
[OperationContract]
public bool CanFireEmployees()
{
return HttpContext.Current.User.IsInRole("Management");
}
}
Notice we are defining two entry points, one to check (CanFireEmployees) and one the actually fire. Clearly in a real world scenario you'd want a few more checks here and more of a model where you start a workflow.. The key thing here is the call to User.IsInRole().. the great thing here is that logging in on the client means you are also logged in on the server! So this just works.
In the Silverlight project, right click and add a service reference. Hit "Discover" and select the right one.
In the login_Competed method, go ahead and check to see if this person can fire the employee
FireEmployeeService2Client fireClient = new FireEmployeeService2Client();
fireClient.CanFireEmployeesAsync();
fireClient.CanFireEmployeesCompleted +=
new EventHandler<CanFireEmployeesCompletedEventArgs>(fireClient_CanFireEmployeesCompleted);
this.fireButton.IsEnabled = false;
Then when the call completes,simply set the buttons enable status based on the results.
void fireClient_CanFireEmployeesCompleted(object sender, CanFireEmployeesCompletedEventArgs e)
{
this.fireButton.IsEnabled = e.Result;
}
Then, the actual implementation of the fire button is streight forward, following all the patterns we have setup for this sort of thing.
private void fireButton_Click(object sender, RoutedEventArgs e)
{
this.fireLabel.Text = "Trying to fire...";
var client = new FireEmployeeService2Client();
client.FireEmployeeAsync("bob");
client.FireEmployeeCompleted += new EventHandler<AsyncCompletedEventArgs>(client_FireEmployeeCompleted);
}
void client_FireEmployeeCompleted(object sender, AsyncCompletedEventArgs e)
{
if (e.Error != null)
fireLabel.Text = e.Error.ToString();
else
fireLabel.Text = "Call Succeed";
}
Hope that helps! you can get the full project here.
- ASP.NET DynamicData: An Introductory Demo
-
I had a bit more time on my travels, so I cooked up this brief introduction to Dynamic Data. I tried a different approach this time by showing what Dynamic Data adds to our existing data story.
More information on Dynamic Data: http://asp.net/dynamicdata
To do this demo, install Visual Studio 2008 SP1 and the Dynamic Data update.
I started off with a new, blank Dynamic Data Web Site
But rather than going directly into Dynamic Data features, I thought I'd review were we are today with .NET Framework 3.5 briefly.
Add New Item and select "Linq to Sql Classes" (notice this works nearly the same with Entity Framework
Then add a couple of tables from Northwind. I am using Products, Categories and Suppliers.
Now add a new Web Form, creatively called Default2.aspx
In design View, add a GridView control and set up its datasource via the smart tag.
Use the LinqDataSource and change the table to Products
under Advanced, but sure to enabled Update.
Run it...
Overall this looks good.
But there are a couple of areas it could get better. For example, those IDs, they are meaningless to my users... I need to go in write code the handle them.
And Validation, right now i just get an exception if invalid data is entered.
Ok, we have set the stage... Let's see what help Dynamic Data can give us.
First we need to enable Dynamic Data. Like all good features, it is off by default!
In Global.asax, un comment out the model.RegisterContext method and set it to the NorthwindDataContext class.
model.RegisterContext(typeof(NorthwindDataContext),
new ContextConfiguration() { ScaffoldAllTables = true });
In Default2.aspx, add the DynamicDataManager
Finally, in Default2.aspx.cs, in Page_Load() let's ask our DynamicDataManager to mange our GridView.
DynamicDataManager1.RegisterControl(GridView1);
Now, just a couple of tweaks to our Gridview, delete the columns collection, enable AutoGenerateColumns and AutoGenerateEditButton.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="True"
DataKeyNames="ProductID" DataSourceID="LinqDataSource1" AutoGenerateEditButton="True">
</asp:GridView>
Run it...
Notice that Category and Suppliers have real names rather than IDs and when you edit them, you get a drop down for options. Dynamic Data knows more about your data model and can therefore provide much better defaults.
Data validation is a lot cleaner as well, notice how Dynamic Data pulls data validation from the model and does the right thing on the client?
From here you can take advantage of all the other great Dynamic Data features to customize the UI. More on that later.
Download the full sample
- Updated Silverlight FlickR demo for Beta2
-
I had a little time while traveling to South Africa so I thought I'd update my Silverlight FlickR demo to Beta2.
Download the full solution read the full writeup
(note: in the application, you can click on the image to advance to the next one)
Overall, the changes were pretty minor, the most interesting one was a change in the way Isolated Storage is accessed.
I set up a page level variable called appsettings:
IsolatedStorageSettings appSettings = IsolatedStorageSettings.ApplicationSettings;
Then, when the page is loaded, I initialized based on it.
public Page() {
InitializeComponent();
if (appSettings.Contains("searchTerm"))
{
this.searchTermTextBox.Text = (string)appSettings["searchTerm"];
}
if (appSettings.Contains("imageNumber"))
{
ImageNumber = (int)appSettings["imageNumber"];
}
}
Then, at the right time in the application flow, I save data to it
private void searchResultsImage_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (Photos == null) return;
if (ImageNumber >= Photos.Count()) ImageNumber = 0;
FlickRPhoto p = Photos.Skip(ImageNumber).First();
this.searchResultsImage.Source = new BitmapImage(new Uri (p.ImageUrl));
appSettings["imageNumber"] = ImageNumber;
appSettings.Save();
ImageNumber++;
}
Notice, I also use Corrina's updated "Flat" style for SL beta2 as well, while the style structure changed a lot to take advantage of the new Visual State Manager, the changes to my code were minimal.
- Silverlight talk at AjaxWorld
-
I am pretty exited to be going to AjaxWorld (Oct 20-22) in San Jose.... I will be at least giving a 
Silverlight talk and maybe something else fun in the Ajax, MVC, ASP.NET space.
I love getting out in the broad industry events because I can hear such diverse perspectives.
Anyone else planning to go? If so, what would you like to hear about?
