getting the value from a datatype dropdown

Mohammad Javed 64 posts 373 karma points

Nov 08, 2015 @ 17:49

General

Umbraco 7

Hi,

I am trying to get the name or shall i say the value of the dropdown pre value created using the umbraco datatype "dropdown"

Service Dropdown List

Now when specifying the "id" it gets the number, how do i get the value of that "id"?

Here is the dropdown populated with the id of the values;

enter image description here

How do i get the value name? And not the ID?

Here is the Surface Controller;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Xml.XPath;
using Umbraco.Core.Services;
using Umbraco.Web.Mvc;

/// <summary>
/// Summary description for ContactSurfaceController
/// </summary>

namespace LiquidThinker2015
{
    public class ContactSurfaceController : SurfaceController
    {
        public object XPathModeIterator { get; private set; }

        public ActionResult ShowForm()
        {
            ContactModel myModel = new ContactModel();
            List<SelectListItem> ListOfServices = new List<SelectListItem>();
            XPathNodeIterator iterator = umbraco.library.GetPreValues(1435);
            iterator.MoveNext();
            XPathNodeIterator preValues = iterator.Current.SelectChildren("preValue", "");
            while (preValues.MoveNext())
            {
                string preValue = preValues.Current.GetAttribute("id","");
                ListOfServices.Add(new SelectListItem
                {
                    Text = preValue,
                    Value = preValue
                });
                myModel.ListOfServices = ListOfServices;
            }
            return PartialView("ContactForm", myModel);
        }

        public ActionResult HandleFormPost(ContactModel model)
        {
            var newComment = Services.ContentService.CreateContent(model.Name + " - " + DateTime.Now.ToString("dd/MM/yyyy HH:mm"), CurrentPage.Id, "ContactFormula");

            //DataTypeService myService = new DataTypeService();
            //var SelectedService = myService.GetAllDataTypeDefinitions().First(x => x.Id == 1435);
            //int SelectedServicePreValueId = myService.GetPreValuesCollectionByDataTypeId(SelectedService.Id).PreValuesAsDictionary.Where(x => x.Value.Value == model.SelectedService).Select(x => x.Value.Id).First();


            newComment.SetValue("contactName", model.Name);
            newComment.SetValue("companyName", model.Company);
            newComment.SetValue("emailFrom", model.Email);
            newComment.SetValue("telephoneNumber", model.Telephone);
            newComment.SetValue("dropdownServices", model.SelectedService);
            newComment.SetValue("contactMessage", model.Message);

            Services.ContentService.SaveAndPublishWithStatus(newComment);

            return RedirectToCurrentUmbracoPage();
        }
    }
}

Thanks

Javed

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Casper Andersen 126 posts 508 karma points

Nov 08, 2015 @ 18:35

As far as i can see in my code which as i know for a fact you are using as you told me :) the problem is in this section of the code

 while (preValues.MoveNext())
            {
                string preValue = preValues.Current.Value;
                ListOfGenders.Add(new SelectListItem
                {
                    Text = preValue,
                    Value = preValue
                });
                myModel.ListOfGenders = ListOfGenders;
            }

you wrote

string preValue = preValues.Current.GetAttribute("id","");

where as i wrote

string preValue = preValues.Current.Value;

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Mohammad Javed 64 posts 373 karma points

Nov 08, 2015 @ 18:42

Here is the full code that mirror yours except for ListOfGenders is ListOfServices in my case.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Xml.XPath;
using Umbraco.Core.Services;
using Umbraco.Web.Mvc;

/// <summary>
/// Summary description for ContactSurfaceController
/// </summary>

namespace LiquidThinker2015
{
    public class ContactSurfaceController : SurfaceController
    {
        public object XPathModeIterator { get; private set; }

        public ActionResult ShowForm()
        {
            ContactModel myModel = new ContactModel();
            List<SelectListItem> ListOfServices = new List<SelectListItem>();
            XPathNodeIterator iterator = umbraco.library.GetPreValues(1435);
            iterator.MoveNext();
            XPathNodeIterator preValues = iterator.Current.SelectChildren("preValue", "");
            while (preValues.MoveNext())
            {
                string preValue = preValues.Current.Value;
                ListOfServices.Add(new SelectListItem
                {
                    Text = preValue,
                    Value = preValue
                });
                myModel.ListOfServices = ListOfServices;
            }
            return PartialView("ContactForm", myModel);
        }

        public ActionResult HandleFormPost(ContactModel model)
        {
            var newComment = Services.ContentService.CreateContent(model.Name + " - " + DateTime.Now.ToString("dd/MM/yyyy HH:mm"), CurrentPage.Id, "ContactFormula");

            DataTypeService myService = new DataTypeService();
            var SelectedService = myService.GetAllDataTypeDefinitions().First(x => x.Id == 1435);
            int SelectedServicePreValueId = myService.GetPreValuesCollectionByDataTypeId(SelectedService.Id).PreValuesAsDictionary.Where(x => x.Value.Value == model.SelectedService).Select(x => x.Value.Id).First();


            newComment.SetValue("contactName", model.Name);
            newComment.SetValue("companyName", model.Company);
            newComment.SetValue("emailFrom", model.Email);
            newComment.SetValue("telephoneNumber", model.Telephone);
            newComment.SetValue("dropdownServices", SelectedServicePreValueId);
            newComment.SetValue("contactMessage", model.Message);

            Services.ContentService.SaveAndPublishWithStatus(newComment);

            return RedirectToCurrentUmbracoPage();
        }
    }
}

On Compile i get this error:

Severity    Code    Description Project File    Line
Error   CS7036  There is no argument given that corresponds to the required formal parameter 'provider' of 'DataTypeService.DataTypeService(IDatabaseUnitOfWorkProvider, RepositoryFactory, ILogger, IEventMessagesFactory)'    LiquidThinker2015   D:\Websites\LiquidThinker2015\App_Code\ContactSurfaceController.cs  44

Stack Trace;

Server Error in '/' Application.

Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. 

Compiler Error Message: CS1729: 'Umbraco.Core.Services.DataTypeService' does not contain a constructor that takes 0 arguments

Source Error:


Line 42:             var newComment = Services.ContentService.CreateContent(model.Name + " - " + DateTime.Now.ToString("dd/MM/yyyy HH:mm"), CurrentPage.Id, "ContactFormula");
Line 43: 
Line 44:             DataTypeService myService = new DataTypeService();
Line 45:             var SelectedService = myService.GetAllDataTypeDefinitions().First(x => x.Id == 1435);
Line 46:             int SelectedServicePreValueId = myService.GetPreValuesCollectionByDataTypeId(SelectedService.Id).PreValuesAsDictionary.Where(x => x.Value.Value == model.SelectedService).Select(x => x.Value.Id).First();

Source File: d:\Websites\LiquidThinker2015\App_Code\ContactSurfaceController.cs    Line: 44 


Show Detailed Compiler Output:

Show Complete Compilation Source:


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.6.106.0

Thanks

Javed

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Mohammad Javed 64 posts 373 karma points

Nov 09, 2015 @ 09:45

Here is the fix which has worked for me, was a simple fix, just needed to sleep on it. I now see where the problem is with the help of someone from StackOverflow.

I was using preValue for both Text and Value in my list.

I then changed it to:

ListOfServices.Add(new SelectListItem
{
    Text = preValues.Current.Value,
    Value = preValues.Current.GetAttribute("id","")
});

Woohoo! First ever surface controller milestone completed in Umbraco.

Massive thanks to Casper, Warren for the support provided on here, twitter and YouTube!

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Getting the Value from a Datatype Dropdown