We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

How to load the collection in GridComboBoxColumn when defining DataContext after loading Page?

Platform: UWP |
Control: SfDataGrid |
.NET Framework: 4.5.1

In SfDataGrid, the GridComboBoxColumn will loads the collection when defining DataContext before loading the SfDataGrid. When we defining the DataContext in Page.Loaded event, the binding will not updated for GridComboBoxColumn which loads the empty collection. But you can achieve this by using DependencyObject class like below code example.


C#

WPF

this.Loaded += MainPage_Loaded;
 
void MainPage_Loaded(object sender, RoutedEventArgs e)
{
    this.DataContext = new ViewModel();
}
 
 
public class BindingProxy: DependencyObject
{
    public BindingProxy() { }
 
    //Dependency property Data for holding ComboBox ItemsSource value.
            
    public object Data
      {
        get { return (object)GetValue(DataProperty); }
             set  { SetValue(DataProperty, value); }
    }
       
    // Using a DependencyProperty as the backing store for Data.  This enables animation, styling, binding, etc...
    public static readonly DependencyProperty DataProperty =
        DependencyProperty.Register("Data", typeof(object), typeof(BindingProxy), new PropertyMetadata(null));  
}

 

 

XAML           

<Page.Resources>
        <local:BindingProxy x:Key="proxy" Data="{Binding}" />    
</Page.Resources>
 
<syncfusion:SfDataGrid x:Name="DataGrid"
                               AutoGenerateColumns="False"
                               ItemsSource="{Binding Orderlist}"
                               NavigationMode="Cell">
            <syncfusion:SfDataGrid.Columns>
                <syncfusion:GridTextColumn MappingName="Name" />
                <syncfusion:GridTextColumn MappingName="City" />
                <syncfusion:GridTextColumn MappingName="Country" />
                <syncfusion:GridComboBoxColumn AllowEditing="True"
                                               DisplayBinding="{Binding Path=SelectedName}"
                                               DisplayMemberPath="Name"
                                               HeaderText="ComboBox-Column"
                                               ItemsSource="{Binding Data.StringName,
                                                                     Source={StaticResource proxy}}" />
            </syncfusion:SfDataGrid.Columns>
        </syncfusion:SfDataGrid>

 

Sample Link

 

UWP

 

 

 

2X faster development

The ultimate UWP UI toolkit to boost your development speed.
ADD COMMENT
You must log in to leave a comment

Please sign in to access our KB

This page will automatically be redirected to the sign-in page in 10 seconds.

Up arrow icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile