Detail view Columns binding

[Ondrej Svoboda]

Hello,

I'm binding Columns collection to the view model based on this article: https://help.syncfusion.com/wpf/sfdatagrid/mvvm#bind-columns-from-viewmodel. I want to use it also for detail grid in master-detail setup. It works fine for master grid, but detail grid has always no columns.

Is there a way how to do it?

Thanks

Ondra

[Ondrej Svoboda]

Just to clarify what I need: dynamically change detail grid column setup (add, remove, reorder columns) from view model.

[Adhikesevan Kothandaraman]

Hi Ondra, 

Thanks for using Syncfusion products. 

We are currently analyzing your reported query at our end. We will get back to you with the complete details on this at 7^th June, 2019. Meanwhile, If you want to populate the details view grid columns, you can use the AutoGenerateColumns property as true for the details view grid or  manually defining the columns for the details view grid. Refer to the following UG link for defining the columns for the master details view grid, 

UG Link: https://help.syncfusion.com/wpf/sfdatagrid/master-details-view?cs-save-lang=1&cs-lang=xaml#defining-columns-for-detailsviewdatagrid  

Regards, 

Adhi 

[Ondrej Svoboda]

Hi,

anything new regarding this topic?

Ondřej

[Adhikesevan Kothandaraman]

Hi Ondre, 

Regret for the inconvenience caused. 

Since the details view grid is not available in the visual tree, it will not support the binding. Therefore, it will not directly bind to the ViewModel property.  

If you want to bind the columns collection of the DetailsViewDataGrid with ViewModel property, you can use the binding by inheriting Freezable class as below, 

 

Code Snippet: 

public class BindingProxy : Freezable 

{ 

    protected override Freezable CreateInstanceCore() 

    { 

        return new BindingProxy(); 

    } 

 

    public object Data 

    { 

        get { return (object)GetValue(DataProperty); } 

        set { SetValue(DataProperty, value); } 

    } 

 

    public static readonly DependencyProperty DataProperty = 

        DependencyProperty.Register("Data", typeof(object), typeof(BindingProxy), new UIPropertyMetadata(null)); 

} 

 

And you can bind to the Columns property of columns in DetailsViewDataGrid as like below, 

 

<Syncfusion:SfDataGrid.Resources> 

    <local:BindingProxy x:Key="proxy" Data="{Binding DataContext, ElementName=datagrid}"/> 

</Syncfusion:SfDataGrid.Resources> 

 

<Syncfusion:SfDataGrid.DetailsViewDefinition> 

    <Syncfusion:GridViewDefinition RelationalColumn="EmployeeDetails"> 

        <Syncfusion:GridViewDefinition.DataGrid> 

            <Syncfusion:SfDataGrid x:Name="FirstDetailsViewDataGrid" AutoGenerateColumns="False"  

                                   Columns="{Binding Data.SfGridColumns, Source={StaticResource proxy}, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">                            

            </Syncfusion:SfDataGrid> 

        </Syncfusion:GridViewDefinition.DataGrid> 

    </Syncfusion:GridViewDefinition> 

</Syncfusion:SfDataGrid.DetailsViewDefinition> 

 

 

Sample: https://www.syncfusion.com/downloads/support/forum/145059/ze/Sample196147891  

Regards, 

Adhi