Mandatory fields

Hi,
To accomplish your task, you need to use the Reflection mechanism. Please write something like this in your ViewController:

C#
public partial class ViewController2 : ViewController {  
    public ViewController2() {  
        InitializeComponent();  
        RegisterActions(components);  
    }  

    protected override void OnActivated() {  
        base.OnActivated();  
        View.ControlsCreated += new EventHandler(View_ControlsCreated);  

    }  
    protected override void OnDeactivating() {  
        base.OnDeactivating();  
        View.ControlsCreated -= new EventHandler(View_ControlsCreated);  
    }  
    void View_ControlsCreated(object sender, EventArgs e) {  
        if (View.Id == Application.GetListViewId(typeof(DomainObject1))) {  
            ListView listView = View as ListView;  
            GridListEditor gridListEditor = listView.Editor as GridListEditor;  
            GridView gridView = gridListEditor.GridView;  
            Type clsType = typeof(DomainObject1);// your object here  
            PropertyInfo[] pInfoArray = clsType.GetProperties();  
            for (int i = 0; i < pInfoArray.Length; i++) {  
                RuleRequiredFieldAttribute attr =  
                 (RuleRequiredFieldAttribute)Attribute.GetCustomAttribute(pInfoArray[i], typeof(RuleRequiredFieldAttribute));  
                if (attr != null) {  
                    gridView.Columns[pInfoArray[i].Name].AppearanceCell.BackColor = System.Drawing.Color.Red;  
                }  
            }  
        }  
    }  
}  

Please let me know your results.
Thanks,
Marina

Hi Marina,
The code u had provided is for listview but need for the detailview. Anyhow i had found the solution with the help of ur code.Thank you,
This is the code for detailview
public partial class MandatoryFields : ViewController
     {
          public MandatoryFields()
          {
               InitializeComponent();
               RegisterActions(components);
               this.TargetViewType = ViewType.DetailView;
          }
          protected override void OnActivated()
          {
               base.OnActivated();
               View.ControlsCreated += new EventHandler(View_ControlsCreated);
          }
          protected override void OnDeactivating()
          {
               base.OnDeactivating();
               View.ControlsCreated -= new EventHandler(View_ControlsCreated);
          }
          void View_ControlsCreated(object sender, EventArgs e)
          {

PropertyInfo[] pInfoArray = this.View.ObjectType.GetProperties();
                    for (int i = 0; i < pInfoArray.Length; i++)
                    {
                         RuleRequiredFieldAttribute attr =
                          (RuleRequiredFieldAttribute)Attribute.GetCustomAttribute(pInfoArray[i], typeof(RuleRequiredFieldAttribute));
                         if (attr != null)
                         {
                              ((DevExpress.XtraEditors.BaseEdit)((DetailView)View).FindItem(pInfoArray[i].Name).Control).BackColor = System.Drawing.Color.Cornsilk;
                         }
                    }
          }
     }

Hi,
I'm happy to know that my snippet helped you and thank you for sharing your findings with us.
See Also:
Validation - Introduce an immediate visualization for properties, which are marked with the RuleRequiredValue attribute (BackgroundColor, Border or Icon)
Thanks,
Marina