How to Customize the Caption Summary Row in .NET MAUI DataGrid?

This article demonstrates how to customize the caption summary row in the .NET MAUI DataGrid. By customizing the caption summary row, you can enhance the appearance and provide more meaningful context for grouped data in your grid.

Xaml

<ContentPage.BindingContext>
    <local:EmployeeViewModel x:Name="viewModel" />
</ContentPage.BindingContext>

<syncfusion:SfDataGrid x:Name="sfGrid"
                        GridLinesVisibility="Both"
                        HeaderGridLinesVisibility="Both"
                        ColumnWidthMode="Auto"
                        GroupingMode="Single"
                        AllowGroupExpandCollapse="True"
                        AutoGenerateColumnsMode="None"
                        ItemsSource="{Binding Employees}">

    <syncfusion:SfDataGrid.GroupColumnDescriptions>
        <syncfusion:GroupColumnDescription ColumnName="EmployeeID" />
    </syncfusion:SfDataGrid.GroupColumnDescriptions>

    <syncfusion:SfDataGrid.Columns>
        <syncfusion:DataGridTextColumn MappingName="Name"
                                        HeaderText="Employee Name" />
        <syncfusion:DataGridTextColumn MappingName="Title"
                                        HeaderText="Designation" />
        <syncfusion:DataGridTextColumn MappingName="LoginID"
                                        HeaderText="Login ID" />
        <syncfusion:DataGridTextColumn MappingName="Gender"
                                        HeaderText="Gender" />

    </syncfusion:SfDataGrid.Columns>

</syncfusion:SfDataGrid>

Xaml.cs
The code below demonstrates how to customize the caption summary row using a custom renderer in SfDataGrid.

public partial class MainPage : ContentPage
{
    public MainPage()
    {
        InitializeComponent();
        sfGrid.CellRenderers.Remove("CaptionSummary");
        sfGrid.CellRenderers.Add("CaptionSummary", new CustomCaptionCellRenderer());
    }
}
public class CustomCaptionCellRenderer : DataGridCaptionSummaryCellRenderer
{
    protected override void OnSetCellStyle(DataColumnBase dataColumn)
    {
        base.OnSetCellStyle(dataColumn);

        if (dataColumn.ColumnElement != null && dataColumn.ColumnElement.Content is SfDataGridLabel label)
        {
            dataColumn.ColumnElement.Background = Colors.SkyBlue;

            label.HorizontalTextAlignment = TextAlignment.Start;
            label.FontSize = 16;
            label.FontAttributes = FontAttributes.Bold;
            label.TextColor = Colors.White;
        }
    }
}

Output

Download the complete sample from GitHub.

Conclusion

I hope you enjoyed learning how to customize the caption summary row in .NET MAUI DataGrid.

You can refer to our .NET MAUI DataGrid feature tour page to know about its other groundbreaking feature representations and Documentation, and how to quickly get started with configuration specifications. You can also explore our .NET MAUI DataGrid example to understand how to create and manipulate data.

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