Article 2: Get Choice Field from sharepoint list and fill to checkboxlist

Step 1: Create List name GetChoiceFields, Field name is Provinces as below

Step 2: User Interface

Step 3: Open VS 2010 | New Project | Empty Sharepoint Project | name GetChoiceFields | Choose deploy sanbox solution

Step 4: Add new item | Web Part | name GetChoiceFields

Step 5: Paste code to your project

using System;

using System.ComponentModel;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using Microsoft.SharePoint;

using Microsoft.SharePoint.WebControls;

namespace GetChoiceFields.GetChoiceFields

{

[ToolboxItemAttribute(false)]

public class GetChoiceFields : WebPart

{

CheckBoxList cblProvinces = null;

protected override void CreateChildControls()

{

cblProvinces = new CheckBoxList();

this.Controls.Add(cblProvinces);           

GetDataInChoiceFieldAndFillToCheckBoxListControl();

}

void GetDataInChoiceFieldAndFillToCheckBoxListControl()

{

try

{

using (SPSite spSite = new SPSite(SPContext.Current.Web.Url))

{

using (SPWeb spWeb = spSite.OpenWeb())

{

SPList spList = spWeb.Lists["GetChoiceFields"];//GetChoiceFields => Display Name

SPFieldMultiChoice spFieldMultiChoice = (SPFieldMultiChoice)spList.Fields["Provinces"];//Provinces => internal name                       

for (int item = 0; item < spFieldMultiChoice.Choices.Count; item++)

{

cblProvinces.Items.Add(new ListItem(spFieldMultiChoice.Choices[item], spFieldMultiChoice.Choices[item]));

}

}

}

}

catch (Exception ex)

{

}

}

}

}

Step 6: Build project | Package project to .wsp. Open your site, on top level site | Click Site Actions | Site Setting | Click Solution | Upload .wsp to here

Step 7: Active .wsp

Step 8: Open any page and Add web part. Result below