how to use ViewData to bind with checkboxs and default values. RSS

• • Reply
  

  DivakarGanta

  Member

  39 Points

  140 Posts

  how to use ViewData to bind with checkboxs and default values.

  Apr 17, 2012 08:33 AM|LINK

  I have functionality as the below VieData["AvalCourses"] values will be bind to Check boxes with foreach.

  SelectList AvalCoursesList = new SelectList(AvalCourses.AsEnumerable(), "COURSE1", "COURSE_NAME", string

  .Empty);

  ViewData[

  "AvalCourses"] = AvalCoursesList;

  @

  foreach (SelectListItem item in (SelectList)ViewData["AvalCourses"

  ])

  {

  <tr

  >

  <td

  >

  <input type="checkbox" value = "@item.Value" name="@item.Value" class

  ="CourseCheckboxList"/>

  </td

  >

  <td

  >

  @Html.DisplayFor(modelItem => item.Text)

  </td

  >

  </tr

  >

  }

  Please help me in the above code to some values will be defaultly checked when returns to View.

  -Divakar.
• • Reply
  

  zuperboy90

  Participant

  977 Points

  819 Posts

  Re: how to use ViewData to bind with checkboxs and default values.

  Apr 17, 2012 08:49 AM|LINK

  Hello,

  try this

  @if(item.Selected)
  {
      <input type="checkbox" value = "@item.Value" checked="checked" name="@item.Value" class="CourseCheckboxList" />
  }
  else
  {
      <input type="checkbox" value = "@item.Value" name="@item.Value" class="CourseCheckboxList" />
  }

  
  But, how do you create the ViewData, i think no checkbox will be checked by default.

  To have a checked/selected value, you should have something like this:

  SelectList AvalCoursesList = new SelectList(AvalCourses.AsEnumerable(), "COURSE1", "COURSE_NAME", "SelectedValue"); // <-- change string.Empty with the default selected value

  • Edited by zuperboy90 on Apr 17, 2012 08:51 AM
  • Marked as answer by DivakarGanta on Apr 18, 2012 08:38 AM
• • Reply
  

  Bhavik Solu...

  Member

  746 Points

  159 Posts

  Re: how to use ViewData to bind with checkboxs and default values.

  Apr 17, 2012 09:11 AM|LINK

  Hi,

  Controller code

  List<SelectListItem> _LiList = new List<SelectListItem>();
              AddItemInlist("1", "true", _LiList, false);
              AddItemInlist("2", "false", _LiList, false);
              AddItemInlist("3", "true", _LiList, false);
              AddItemInlist("4", "false", _LiList, false);
              ViewBag.Chklist = new SelectList(_LiList, "Value", "Text");
              
  
          }
  
          public void AddItemInlist(string Key, string value, List<SelectListItem> addtolist, bool IsSelected)
          {
              SelectListItem Li = new SelectListItem();
              Li.Text = Key;
              if (IsSelected)
              {
                  Li.Selected = true;
              }
              Li.Value = value.ToString();
              addtolist.Add(Li);
  
          }

  View part

    @foreach (SelectListItem item in (SelectList)ViewBag.Chklist)
             {
                 @Html.CheckBox(item.Text,Convert.ToBoolean(item.Value));
             }

  
  
  

  
  
  

  Bhavik Solucky | My Blog
  • Marked as answer by DivakarGanta on Apr 18, 2012 08:37 AM
• • Reply
  

  Bhavik Solu...

  Member

  746 Points

  159 Posts

  Re: how to use ViewData to bind with checkboxs and default values.

  Apr 23, 2012 10:02 AM|LINK

  Hi Divakar,

  Sorry i am in meeting when you call me. if you have any question or doubts. please ask me in forms so i will  reply you when i am free

    Regards,

   Bhavik Solanki

  Bhavik Solucky | My Blog