.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Register
 
Win Surprise Gifts!!!
Congratulations!!!


Top 5 Contributors of the Month
Kaviya Balasubramanian
Imran Ghani
Post New Web Links

Issue with x:TypeArguments, generic List class, and XAML

Posted By:      Posted Date: May 22, 2011    Points: 0   Category :JQuery
 

I created the following markup for a loose XAML file.

<StackPanel 
 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 
xmlns:sys="clr-namespace:System;assembly=mscorlib"
 
xmlns:scg="clr-namespace:System.Collections.Generic;assembly=mscorlib">
   
<scg:List x:TypeArguments="sys:String">
        HelloWorld
   
</scg:List>
</StackPanel>

But I get this error when I run the loose XAML in IE:

The tag 'List' does not exist in XML namespace 'clr-namespace:System.Collections.Generic;assembly=mscorlib'. Line '7' Position 2'.

As you would know, generics in XAML are a feature in XAML 2009 and can work for the most part only in loose XAML files. But the above code doesn't work.<


View Complete Post


More Related Resource Links

Themes/Generic.xaml issue when file is Link from another project

  
Hello,

I have two Project A and B that use a Themes project. In the Themes project, I defined a Generic.xaml file. If I run the program on the A project, it works.

But in the second project (B) I don't create the Generic.xaml file but link (add existing item -> add as link) it from the first project (A). When I run this one I got this error :

'/Theme;component/Themes/Generic.xaml' value cannot be assigned to property 'Source' of object 'System.Windows.ResourceDictionary'. Cannot locate resource 'themes/generic.xaml'.  Error at object 'System.Windows.ResourceDictionary' in markup file 'AssemblyProjectB;component/app.xaml' Line 9 Position 37.

If in the second project (B) I create the file instead of linking the generic.xaml created in the first project (A), it works.


Any idea ?


Thanks

Xml Serialization: choose tag name for class instances in a generic ObservableCollection / List

  

Hi,

I've creating a class called Graphics, deriving from a generic ObservableCollection where T is a custom class called Graphic :

public class Graphics : ObservableCollection<Graphic>
{
public Graphics()
{
}
}

Another class has a Graphics field. When I serialize to XML this class, this works fine :

<MyOtherClassInstance>
 <Graphics>
  <Graphic id="1">
  <Graphic id="2">
  <Graphic id="3">
 </Graphics>
</MyOtherClassInstance>

But I would like to have the following:

<MyOtherClassInstance>
 <Gs>
  <Gr id="1">
  <Gr id="2">
  <Gr id="3">
 </Gs>
</MyOtherClassInstance>

How can I process, I can't find a solution.

Please help.

Thanks


Xml Serialization: change tag name of class instances in a generic ObservableCollection / List

  

Hi,

I've creating a class called Graphics, deriving from a generic ObservableCollection where T is a custom class called Graphic :

public class Graphics : ObservableCollection<Graphic>
{
public Graphics()
{
}
}

Another class has a Graphics field. When I serialize to XML this class, this works fine :

<MyOtherClassInstance>
 <Graphics>
  <Graphic id="1">
  <Graphic id="2">
  <Graphic id="3">
 </Graphics>
</MyOtherClassInstance>

But I would like to have the following:

<MyOtherClassInstance>
 <Gs>
  <Gr id="1">
  <Gr id="2">
  <Gr id="3">
 </Gs>
</MyOtherClassInstance>

How can I process, I can't find a solution.

Please help.

Thanks


How to set a style's TargetType property in XAML to a Generic Class?

  

I've just moved to .NET 4.0 / Visual Studio 2010 and am hoping there is a new answer to this question, found on StackOverflow from over a year ago:

Is it possible to set a style's TargetType property in XAML to a Generic Class?

public class Selector<T> : Control { }

and then in xaml

<Style x:TargetType="Selector">
<Setter Property="MyProperty" Value="Green" />
</Style>

I found this on the WPF Tutorial, and would like to find a similar mechanism for this situation above.

<!-- XAML 2009 -->
<ObservableCollection x:TypeArguments="Employee">
 <l:Employee FirstName="John" Name="Doe" />
 <l:Employee FirstName="Tim" Name="Smith" />
</ObservableCollection />

 

Janene


Generic list of custom class returns data in WCF service layer, but loses them in Presentation Layer

  

I'm reading this excellent article by John Papa in MSDN Data Points - http://msdn.microsoft.com/en-us/magazine/cc700340.aspx

This single article alone sheds great deal of light on EF, WCF, WPF, MVP architecture, Layered Architecture with these technologies and so much more.

I'm trying to experiment with the code that comes with the article as is.

When executing the application, the service layer returns a Generic List with three Customer objects to the presentation layer. However, in presentation layer, the Generic list arrives with zero objects in the list. In the context of this application, I provide 'd' as a search criteria and hit the search button; while stepping through, I can see it returns 3 rows from the database.

With my limited experience in WCF, I am unable to figure out why it is so. This article was written  for 3.5 SP1 Beta 1. Could something changed in the general release that is causing this?


-Perennial Newbie-

Format Generic List Bound to Gridview

  

I have a generic list of a custom type. The custom type has a string and double.

I'm binding the list to a gridview and it outputs everything fine.

I'm trying to format the double column into a currency format. It is in a template field as I'm calculating a running total. I pass the value to a function that returns a double and adds the current value to a running total which I will show in the footer.

The format is not changing to currency as expected when using String.Format("{0:c}", GetTotal(Convert.ToDouble(Eval("Amount"))))


Any ideas on what might be going on and how to fix this?

Thanks!


How to Cache System.Collection.Generic.List object

  

I need to cache System.Collection.Generic.List object with expiration time

var Root = from feed in feedhotel.Descendants(ota + "HotelContent")
                           where (feed.Attribute("HotelCode") != null)
                           select new xmlhotel()
                           {

....

....

    };

return Root.ToList();

Is it possible to cache Root.ToList() for some time....





Datalist with embedded Grid or List...Sub Totals issue with iteration

  

Let me see if one of you can assist with this one...

 

i have a similar situation, but mine does not use the selected item (item Command). Here is what the form is to do:

 

1. this is for an educational environment, so we use SID- NOT SSN's, but i use the SID as a filter in the subset as the grouping unique id.

2. I'm trying to inject a sub total row at the last line item of each SID (if more than one item in the report for that SID).

3. I'm looping thru the items in the Datalist Item Command with a for each (item i in Datalist2.Items).

Issue with List Definition of same base content type and deployed via same feature

  

I am trying to deploy two custom list definitions using only one single feature.  Below are the details of my issue.

  • Two custom list definitions
  • Each custom list definition has its own custom content type
  • Each custom content type inherits from the base content type Picture (Type = 109)
  • The custom list definitions are grouped together under one single feature
  • The custom content types are grouped together under a seperate single feature

When I deploy my solution in this configuration, the second list definition gets the first custom content type applied to it and the list schema from the first list definition is also applied to the second list definition.

What makes this more interesting, when I seperate both of the list definitions under two seperate features it all works fine.  Custom content types and list schemas get applied correctly.

Can anyone tell me why I can not deploy both list definitions under one single feature?

If you need me to post any of the origional code or XML to this post please let me know.

 

Craig


Navigate through a generic list using a webservice

  
Hi I have a problem where I would have a dataset coming to me and I would break into 5 new generic LIST<>. Now the user needs to see one record at a time and navigate through the list Fields like               From date : Text box with calendar                To Date : Text box with calendar               Manager Reporting To : Drop down list                Buttons on Move Back  and move Forward Now I would have 4 such similar lists which I have to pick up from the audit table. When the user clicks on move back and move forward buttons he should be able to navigate through records in my list that I have fetched in the beginning . I can store it in a session or viewstate till it gets updated again. How do I achieve this. Can I also a gridview instead of textboxes. What should be the simplest way to achieve this. Thanks!      

text box binding with Generic list

  
Hi, I am working in asp.net 3.5 page, where I want to bind a textbox with generic list data. And I have Previous & next button. Which will show the record in textbox. I don't want to go in db again and again.  Is it possible.??? 

Can serialize but not deserialize class containing an xs:list attribute using XmlSerializer

  
I have a simple serializable class along the lines of: [Serializable] [XmlType] public class MyClass { [XmlAttribute("values")] public int[] Values { get; set; } } If I create an instance of this class with Values set to an empty collection the XmlSerializer class produces this output as expected: <?xml version="1.0" encoding="utf-16" ?> <MyClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" values="" /> However, deserializing this exact output throws a System.FormatException: Input string was not in a correct format. Shouldn't the XmlSerializer be able to deserialize this, since it produced the xml string in the first place?

How can I access a Type with generic parameter in XAML

  
Hello, How can I access a Type with generic parameter in XAML. class SampleClass<T> { } now in XAML: i want to access xmlns:local="Ref to SampleClass" How it will create the instance of SampleClass<T>?

Accessing Generic Type in XAML

  
Hello, How can I access a Type with generic parameter in XAML. class SampleClass<T> { } now in XAML: i want to access xmlns:local="Ref to SampleClass" How it will create the instance of SampleClass<T>?

Compile issue with List<> and Linq

  
I am pretty sure this is some framework version issue but I am getting this on a (custom layout) page compile migrated over from MOSS. The following code complies in my MOSS 2007 environment but does not in my new 2010 environment. Thanks in advance for any help. Code section #1: private bool isSuccessReturnCode(string s) { bool bReturn = false; // Following line fails looking for ';' XDocument loaded = XDocument.Parse(s); var q = from c in loaded.Descendants("Node") select (string)c.Element("ReturnCode");   Code Section #2 private InvoiceItem getInvoiceItem(Guid ID) { List<InvoiceItem> InvoiceItems = ((List<InvoiceItem>)ViewState["INVOICEITEMS"]);

Generic.xaml and Resources stored in App.xaml

  
Hi, I store things like ValueConverters or Brushes in the App.xaml, custom controls are stored in the generic.xaml. Now I'd like to get access  to those resources in the App.xaml from my custom controls in generic.xaml, but if I try to access them with {StaticResource TestConverter}, my programm seems to not find them. How can I achieve this? With ComponentResourceKeys?   Tobi  
Categories: 
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend