How to bind a column collection from view model in .NET MAUI DataGrid?

The .NET MAUI DataGrid supports binding the SfDataGrid.Columns to a property in the ViewModel by having the binding property to be of type ColumnCollection or List<DataGridColumn> in the ViewModel.

Refer to the code example below in which the DataGridColumns property is bound to the SfDataGrid.Columns property.

XAML
In the XAML page, bind the DataGridColumns property to the SfDataGrid.Columns.

<syncfusion:SfDataGrid  x:Name="datagrid"
                        ItemsSource="{Binding Employees}"
                        Columns="{Binding DataGridColumns}"
                        AutoGenerateColumnsMode="None"
                        DefaultColumnWidth="155">
</syncfusion:SfDataGrid>

ViewModel.cs
Create a property in the ViewModel class to bind with a type that can be either List<DataGridColumn> or Syncfusion.Maui.DataGrid.ColumnCollection. Assign the appropriate values to this property within the constructor.

private ColumnCollection dataGridColumns;

public ColumnCollection DataGridColumns
{
    get { return dataGridColumns; }
    set
    {
        dataGridColumns = value;
    }
}
public EmployeeViewModel()
{
    this.DataGridColumns = new ColumnCollection
    {
        new DataGridNumericColumn(){ MappingName = "EmployeeID" , HeaderText="Employee ID"},
        new DataGridTextColumn(){ MappingName = "Name" , HeaderText = "Name"},
        new DataGridTextColumn(){ MappingName = "IDNumber", HeaderText ="ID Number"},
    };

}

The following screenshot shows column collection bound from a property in a view model.

Download the complete sample from GitHub

Conclusion
I hope you enjoyed learning how to bind a column collection from the view model in .NET MAUI DataGrid.

You can refer to our .NET MAUI DataGrid feature tour page to learn about its other groundbreaking feature representations. Explore our .NET MAUI DataGrid Documentation to understand how to present and manipulate data.
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