How to implement converter to .NET MAUI DataForm (SfDataForm)?

The Syncfusion .NET MAUI DataForm (SfDataForm) supports you to programmatically implement converter. In this article, you can understand the demonstration of how to programmatically implement converter.

C#:

Use DataFormValueConverter attribute to convert the value before reading and saving in DataForm.

public class DataFormModel
{
  [DataFormValueConverter(typeof(StringToDateTimeConverter))]
  [DataType(DataType.Date)]
  public string DateTime { get; set; }
}

C#:

Use the Converter class as demonstrated below to convert a string value into a datetime value and vice versa.

public class StringToDateTimeConverter : IValueConverter


{
   public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
   {
       if (value == null || string.IsNullOrEmpty(value.ToString()))
       {
           return DateTime.Now;
       }
       else
       {
           DateTime dateTime;
           DateTime.TryParse((string)value, out dateTime);
           return dateTime;
       }
   }
   public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
   {
       return value.ToString();
   }
}

C#:

Initialiize the DataFormModel in the DataFormViewModel class.

public class DataFormViewModel
{
   public DataFormModel DataFormModel { get; set; }

   public DataFormViewModel()
   {
       this.DataFormModel = new DataFormModel();
   }
}

XAML:

Create a dataform and bind the DataFormModel as DataObject.

<ContentPage.BindingContext>
   <local:DataFormViewModel/>
</ContentPage.BindingContext>
<dataForm:SfDataForm x:Name="dataForm" 
                    DataObject="{Binding DataFormModel}"/>

View the sample on GitHub.

Output:

Conclusion:

I hope you enjoyed learning how to programmatically implement converter in the .NET MAUI DataForm (SfDataForm).

Refer to our .NET MAUI DataForm’s feature tour page for 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 age. If you are new to Syncfusion, try our 30-day free trial to check out our .NET MAUI DataForm and other .NET MAUI components.

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