Add to a DataForm ComboBox

Question

Is there a simple way to add to the add items to a sfDataForm ComboBox?

Here is how I load a non-DataForm ComboBox:

  private void LoadComboBoxes()

  {
      visitcategory = new ObservableCollection<string>();
      visitcategory.Add("--Select One--");
      visitcategory.Add("Office Visit");
      visitcategory.Add("Established Patient");
      visitcategory.Add("New Patient");
      visitcategory.Add("Health and Behavioral Assessment");
      visitcategory.Add("Preventative Care Services");
      visitcategory.Add("Ophthalmological Services");


      VisitCategoryComboBox.ItemsSource = visitcategory;
      VisitCategoryComboBox.SelectedIndex = -1;
}

Vidyalakshmi Mani · Accepted Answer

Hi Frederick,Thank you for reaching out. To achieve your requirement, you can load the combo box using the `ItemSourceProvider`. Register the property as a `ComboBox` using the `RegisterEditor` method to make the editor function as a combo box editor, as shown in the code snippet below: public string Country { get; set; } dataForm.RegisterEditor("Country", DataFormEditorType.ComboBox); dataForm.ItemsSourceProvider = new DataFormItemsSourceProvider(); public class DataFormItemsSourceProvider : IDataFormSourceProvider { public object GetSource(string sourceName) { if (sourceName == "Country") { List list = new List() { "USA", "Japan", "UK", }; return list; } return new List(); } } We have prepared a simple sample demonstrating this. Please see the attached sample for your reference.If you have any further questions or need assistance, please let us know!Regards,Vidyalakshmi M.Attachment: GettingStarted_948d3ef8.zip

Frederick Switzer · Answer

Thank you for that sample, but I'm looking for a solution that does not include the multiple Folders etc.

My dataform has a number of properties that I want to make into comboboxes.

Can I make the changes in my .cs file (code behind)?
How do I identify the fields if they are "dataform generated" ?

    <dataform:SfDataForm

        x:Name="usersDataForm"
        AutoGenerateItems="True"
        GenerateDataFormItem="usersDataForm_GenerateDataFormItem"
        ValidateProperty="usersDataForm_ValidateProperty" />

I want to make the suffix field a combo box for "Jr., Sr.II ) and the Specialty field (DR., Nurse,Therapist)

Vidyalakshmi Mani · Answer

Hi Frederick,Regarding your queries:Handling Events in Code-Behind: Yes, you can manage the events and behavior of the DataForm directly in the xaml.cs file without the need for a separate behavior class.Identifying "DataForm Generated" Fields: When the `AutoGenerateItems` property is set to `True`, editors are automatically generated based on the property type. To identify these generated editors, you can utilize the `GenerateDataFormItem` event, which is triggered for each editor creation. The `GenerateDataFormItemEventArgs` provides information about the currently generated editor.Making Suffix and Specialty Fields ComboBoxes: To convert the `Suffix` and `Specialty` fields into ComboBoxes, you can register them as ComboBox editors using the `RegisterEditor` method. You can then populate these ComboBoxes by providing the itemsource in the `ItemSourceProvider` class as shown in the code snippet below. this.dataForm.ItemsSourceProvider = new DataFormItemsSourceProvider(); this.dataForm.RegisterEditor("Suffix", DataFormEditorType.ComboBox); this.dataForm.RegisterEditor("Speciality", DataFormEditorType.ComboBox); public class DataFormItemsSourceProvider : IDataFormSourceProvider { public object GetSource(string sourceName) { if (sourceName == "Suffix") { List list = new List() { "Jr.", "Sr.", }; return list; } if (sourceName == "Speciality") { List list = new List() { "DR.", "Nurse", "Therapist", }; return list; } return new List(); } } We have prepared a sample according to these suggestions. Please find the attached sample for your reference. If you require further assistance, feel free to let us know.Regards,Vidyalakshmi M.Attachment: GettingStarted_70a95952.zip