How to display value from a combobox in silverlight?

Question

Hi I'm a designer, trying to learn blend and silverlight, basically what i'm trying to achieve is output the selected item from the comobox into a textBlock. Can any one point me in the right direction or show me some c# on how this is done. This is my current code:

private void GetSubmitBtn(object sender, System.Windows.RoutedEventArgs e)
{
    this.Message.Text = "Hello there " + this.Firstname.Text + " " + this.Surname.Text + ". You come from "  +  this.Origin.SelectedItem.ToString();     
}

Answer 1

I think you need SelectedValue instead of SelectedItem

Or

((OriginClass)Origin.SelectedItem).value;

Answer 2

Bind the text of your textblock to the combobox.Text.

Answer 3

You could do something like this:

   <ComboBox x:Name="Names">
        <ComboBoxItem Content="John Doe" />
        <ComboBoxItem Content="Jane Doe" />
        <ComboBoxItem Content="Jack Black" />
        <ComboBoxItem Content="Jake White" />
        <ComboBoxItem Content="Kelly Blue" />
    </ComboBox>
    <TextBlock Text="{Binding SelectedItem.Content, ElementName=Names}" />

And just use a converter to translate into your "Hello ...." string.

You can do it with Sample Data as well. Create some sample data with a Column named FullName.

In your XAML reference your Sample Data (similar to this)

<UserControl.Resources>
 <SampleData:SampleDataSource x:Key="SampleDataSource" d:IsDataSource="True"/>
</UserControl.Resources>

Then your ComboBox and TextBlock would change to this.

<ComboBox x:Name="Names" DataContext="{Binding Source={StaticResource SampleDataSource}}" DisplayMemberPath="FullName" ItemsSource="{Binding Collection}"/>
<TextBlock Text="{Binding SelectedItem.FullName, ElementName=Names}" />

Answer 4

how to display text in combobox in silverlight

you can display selected value of combobox into textbox in silverlight

TextBox1.Text= (cmbApplicationStatus.SelectedItem as ComboBoxItem).Content.ToString();

here, cmbApplicationStatus is Name of your combobox

thank you