Binding Static Items to combobox in MVVM in Silverlight 4

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How to bind static items in MVVM architecture in silverlight application.

Posted 2-Jan-13 20:24pm

srinivas.dammalapati

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Naz_Firdouse 3-Jan-13 6:58am

post what you did till now so that we can help you...

srinivas.dammalapati 4-Jan-13 3:59am

How to static binding items to Combobox in MVVM in Silverlight application.

For Example i have Country Combobox dropdown so i need to bind (Text="US", Value="US"),(Text="CA", Value="CA") in XAML class.

Please give me sample example its very urgent.

srinivas.dammalapati 4-Jan-13 6:28am

i already wrote in Viewmodel same like above but i am looking at Xaml page like below (this is classic ASP.net but i want in silverlight).
<asp:DropDownList ID="DropDownListID" AppendDataBoundItems="true" runat="server">
<asp:ListItem Text="static item 1" Value="1" />
<asp:ListItem Text="static item 2" Value="2" />
<asp:ListItem Text="static item 3" Value="3" />

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Naz_Firdouse · Answer 1 · 2013-01-03T22:31:00

Create a class which holds the two properties as you mentioned like

C#

class ComboData
{
string Text;
string Value;
}
In your ViewModel,
create a collection like
Public ObservableCollection<combodata> ComboColl = new ObservableCollection<combodata>;
</combodata></combodata>

Add data to this collection

C#

ComboColl.Add(new ComboData(){ Text="US",Value="US"});

In youe xaml page,
define a template to hold the two text values like

HTML

<datatemplate x:key="ComboTemplate" xmlns:x="#unknown">
           <stackpanel orientation="Horizontal">
         <textblock text="{Binding Text}" />
         <textblock text="{Binding Value}" />
           </stackpanel>
       </datatemplate>

Assign this template to combobox like ItemTemplate="{StaticResource ComboTemplate}"

and set the datacontext of the combobox to the Viewmodel object.

Hope this helps...