How to customize the dropdown height of AutoComplete editor in .NET MAUI DataForm (SfDataForm) ?
In the Syncfusion® .NET MAUI DataForm, you have the flexibility to customize the dropdown height of the Autocomplete editor using the MaxDropDownHeight property. This guide will walk you through how to modify the dropdown height for better user interface customization.
C#
Attach a custom behavior to the SfDataForm to register the editors and customize the dropdown height.
public class DataFormBehavior : Behavior<SfDataForm>
{
protected override void OnAttachedTo(SfDataForm dataForm)
{
base.OnAttachedTo(dataForm);
dataForm.ItemsSourceProvider = new ItemSourceProvider();
dataForm.RegisterEditor("Address", DataFormEditorType.MultilineText);
dataForm.RegisterEditor("Country", DataFormEditorType.AutoComplete);
dataForm.RegisterEditor("City", DataFormEditorType.ComboBox);
dataForm.GenerateDataFormItem += OnGenerateDataItem;
}
private void OnGenerateDataItem(object sender, GenerateDataFormItemEventArgs e)
{
if (e.DataFormItem != null && e.DataFormItem is DataFormAutoCompleteItem autoComplete)
{
autoComplete.MaxDropDownHeight = 90;
}
}
}The default value of MaxDropDownHeight is 400.
XAML:
Bind the DataFormModel to the DataObject property and attach the custom behavior.
<dataForm:SfDataForm x:Name="dataForm"
DataObject="{Binding DataFormModel}">
<dataForm:SfDataForm.BindingContext>
<local:DataFormViewModel/>
</dataForm:SfDataForm.BindingContext>
<dataForm:SfDataForm.Behaviors>
<local:DataFormBehavior/>
</dataForm:SfDataForm.Behaviors>
</dataForm:SfDataForm>Output:
Download the complete sample on GitHub.
Conclusion
I hope you enjoyed learning how to customize the dropdown height of the Autocomplete editor in the .NET MAUI DataForm.
You can refer to our .NET MAUI DataForm feature tour page to learn about its other groundbreaking feature representations. You can also explore our .NET MAUI DataForm documentation to understand how to present and manipulate data.
For current customers, check out our .NET MAUI components from the License and Downloads page. If you are new to Syncfusion®, try our 30-day free trial to check out our .NET MAUI DataForm and other .NET MAUI components. Please let us know in the comments section if you have any queries or require clarification. Contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!
