Try using lbSignPost.Items.OfType<ListItem>().Where(item => item.Selected);

Hope this helps.

Frederik

Hi,

Thanks for the reply.

I tried like this:

protected override void SetupEditControls()
 {
  try
   {
     lbSignPost.SelectedValue = this.ToString();
   }
  catch
    {
    }
 }

public override void ApplyEditChanges()
{
  try
  {
   base.SetValue((lbSignPost.Items.OfType<ListItem>().Where(item => item.Selected)));
  }
  catch
  {
  }
 }

This time I'm not seeing any item as selected once published, Am I missing something in "SetupEditControls()" method.

Thanks.

When setting the value (ApplyEditChanges()) you need to use a separator, comma or similar. Then when getting the value traverse through the Items and check if the item value matches the one you have stored, and based on that set Selected property to true for that item.

Frederik

Hi,

With the help of following code I'm able to do this.

        protected override void SetupEditControls()
        {
            try
            {
                string strTempHideSignPostId = string.Empty;
                strTempHideSignPostId=this.ToString();
                List<string> lstSignPosts=new List<string>();
                
                if (strTempHideSignPostId.Contains(","))
                {
                    lstSignPosts = strTempHideSignPostId.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries).ToList();
                }
                else
                    lstSignPosts.Add(strTempHideSignPostId);

                lstSignPosts.ForEach(li =>
                {
                    if (lbSignPost.Items.OfType<ListItem>().Any(li2 => li == li2.Value))
                        lbSignPost.Items.OfType<ListItem>().Single(li3 => li3.Value == li).Selected = true;
                });
            }
            catch
            {
            }
        }

        public override void ApplyEditChanges()
        {
            try
            {
                string strSelectedValue = string.Empty;
                List<ListItem> LstTest = new List<ListItem>();
                strSelectedValue = lbSignPost.SelectedValue;
                LstTest = lbSignPost.Items.OfType<ListItem>().Where(a => a.Selected).ToList();

                int itemCount = 0;
                foreach (var item in LstTest)
                {
                    if (itemCount == 0)
                    {
                        strSelectedValue = item.Value.ToString();
                    }
                    else
                        strSelectedValue = strSelectedValue + "," + item.Value.ToString();
                    itemCount++;
                }
                base.SetValue(strSelectedValue);
            }
            catch
            {
            }
        }

Thanks.

Extract "," to constant, makes it easy when it will come to refactoring :)

Also you can use string.Join() to get things back concatenated.