ComboBox Data Binding in XAML

Tue, 10 Feb 2009 03:22:29 Z

Hi

The ComboBox data binding is on a DataTable which is returned from a method call on a singleton instance object.

Here is my XAML

<Window x:Class="MainWindow" 

    xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation  

    xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml  

    xmlns:data="clr-namespace:System.Data;assembly=System.Data" 

    Title="Database" Height="495" Width="420" ResizeMode="CanResizeWithGrip">  

    <Window.Resources> 

        <ObjectDataProvider x:Key="DataTable" 

            ObjectType="{x:Type data:Sql.SqlDataSourceEnumerator}"/>   

    </Window.Resources> 

    <StackPanel> 

        <ComboBox Name="comboBoxServer"   

            ItemsSource="{Binding Source=  

                {x:Static data:Sql.SqlDataSourceEnumerator.Instance}}"   

            DisplayMemberPath="ServerName" /> 

    </StackPanel> 

</Window>

The method I want to call is GetDataSources(), for example in code it would appears:

System.Data.Sql.SqlDataSourceEnumerator.Instance.GetDataSources();

So the question is, how do I declarative make this call using XAML binding the return DataTable to a ComboBox?

Craig

ComboBox Data Binding in XAML

Tue, 10 Feb 2009 06:58:59 Z

Read the following article;

http://msdn.microsoft.com/en-us/library/aa348824.aspx

Irfan Ahmad

ComboBox Data Binding in XAML

Tue, 10 Feb 2009 07:05:07 Z

Solution

<Window x:Class="MainWindow" 

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 

    xmlns:data="clr-namespace:System.Data;assembly=System.Data" 

    Title="Database" Height="495" Width="420" ResizeMode="CanResizeWithGrip">  

    <Window.Resources> 

        <ObjectDataProvider   

            x:Key="DataTable" 

            ObjectInstance="{x:Static data:Sql.SqlDataSourceEnumerator.Instance}" 

            MethodName="GetDataSources" 

            IsAsynchronous="True"/>         

    </Window.Resources> 

<StackPanel> 

                <ComboBox ItemsSource="{Binding Source={StaticResource DataTable}, Mode=OneWay}" DisplayNamePath="ServerName"/>  

</StackPanel> 

</Window>

ComboBox Data Binding in XAML

Tue, 10 Feb 2009 09:39:17 Z

Yes, that is what explained in the article I had pointed in my last post :-(

Irfan Ahmad

ComboBox Data Binding in XAML

Sat, 04 Jul 2009 22:34:49 Z

This works great, but being new to WPF and how to bind, I am wondering if there is a way to know when this process is complete.

Basically, I want to know if there is a way (BackgroundWorker, for example) to know when the asynchronous method is complete so I can enable other UI controls.
How would I be able to use XAML to tie WorkerSupportsCancellation="True" and cancel this request?

Also, what if I wanted the data to go directly to a model, wait for completion, and then update the combobox?