Hi I am using igHierarchicalGrid (Ignite UI), which has a columns defined in the controller not in cshtml. I am using 2014.1, I am giving the sample design of the model. It has a property SignerAuth. Please see below:

var Signer1 = new SignerInformation()
            {
                SignerIndex = 0,
                SignerName = "Joe Dewo",
                SignatureStatus = true,
                eSign = SignerInformation.eSignature.InPerson,
                SignerAuth = new SignerAuthentication { 

AuthenticationMode = SignerAuthentication.AuthenticationType.Email,

EmailAddress = "test@immonline.com" ,

Details     = "Signer1 Details"}             };
 
            var Signer2 = new SignerInformation()
            {
                SignerIndex = 1,
                SignerName = "Rob",
                SignatureStatus = false,
                eSign = SignerInformation.eSignature.Remote,
                SignerAuth = new SignerAuthentication
                     {
                         AuthenticationMode = SignerAuthentication.AuthenticationType.KBA,
                         EmailAddress = "tes2t@immonline.com",
                         Details = "Signer2 Details"
                     }
            };

Controller:

authenMode.Group.Add(new GridColumn() { HeaderText = "Type",Key = "SignerAuth",DataType = "eSignature",Width = "15%",FormatterFunction = "lookupAuthiticationMode" });
        authenMode.Group.Add(new GridColumn() { HeaderText = "Email Address",Key = "SignerAuth",Template = "${SignerAuth.EmailAddress}",DataType = "string",Width = "15%" });
        authenMode.Group.Add(new GridColumn() { HeaderText = "Details",Key = "SignerAuth",Template = "${SignerAuth.Details}",DataType = "string",Width = "15%" });
        grid.Columns.Add(authenMode);

So for this column I set the UpdateSettings as below:

var Updating = new GridUpdating();
          
           Updating.EnableAddRow = false;
           Updating.EnableDeleteRow = false;
           //Set this mode for editing, cell,row, none and RowEditTemplate
           Updating.EditMode = GridEditMode.Cell;
           //apply it to child layouts
           Updating.Inherit = false;
           var colUpdateSettings = new List<ColumnUpdatingSetting>();

//Set settings for AuthenticationType
 
           ColumnUpdatingSetting columnUpdatingSettingForAuthenticationType = new ColumnUpdatingSetting();
           columnUpdatingSettingForAuthenticationType.ColumnKey = "SignerAuth";
           columnUpdatingSettingForAuthenticationType.EditorType = ColumnEditorType.Combo;
           JavaScriptSerializer serializer = new JavaScriptSerializer();
           columnUpdatingSettingForAuthenticationType.EditorOptions = String.Format("valueKey: 'id', textKey: 'Type', dataSource: {0}",

		serializer.Serialize(GetAuthenticationTypes()));
           colUpdateSettings.Add(columnUpdatingSettingForAuthenticationType);

I am able to manage the cell edit click, quit well, figure it out to populate the combo, I still have some issues with it but the main issue is 

it is applying the same settings to the EmailAddress and Details , I want EmailAddress and Details to be edited but should be text editor. because the Key is bound 

to SignerAuth, it is setting to combo to the other fields. I am attaching the code so that you have more clarity. I attached the screens also. 

Also, when I am setting the columnIndex, as below:

columnUpdatingSettingForAuthenticationType.ColumnIndex = 6;
 and set other properties, it is not working, what I observed in the generated code is columnIndex: -1 . What is the use of this column and where is the documentation for this in 2014.1?            

Any details example will be much appreciated.