How to read Custom Attribute

[Shakti SIngh Dulawat]

I am trying to make a multi colum combo box 

RadComboBoxItem item = new RadComboBoxItem();

                item.Text = selectionItem.ShortName.ToString();
                item.Value = selectionItem.SelectionId.ToString();

                item.Attributes.Add("SelectionNumber", selectionItem.SelectionNumber.ToString());
                item.Attributes.Add("DrawnNumber", selectionItem.DrawnNumber.ToString());

                radComboBoxSelection.Items.Add(item);

                item.DataBind();

But when trying to read value of radComboBoxSelection.SelectedItem.Attributes  I am getting error what are other way to read value of 

DrawnNumber 

Thanks,

[Nencho]

Hello Shakti SIngh Dulawat,

In order to access the value of a specific custom attribute, please consider using the following approach:

string attr = radComboBoxSelection.SelectedItem.Attributes["DrawnNumber"];

All the best,
Nencho
the Telerik team

[Shakti SIngh Dulawat]

I use this method but it always show me NULL is there is any other property we have to set for rad combo box?

Thanks,
Shakti

[Shakti SIngh Dulawat]

Thanks the Problem is resolve using this!
If you use LoadOnDemand with the RadComboBox you cannot access the SelectedItems and SelectedIndex on the server-side. For a further explanation of this you can read over this documentation article:

http://www.telerik.com/help/aspnet-ajax/load-on-demand-access-items-server-side.html

You can use the SelectedValue property I believe (the article mentions it as well) and perhaps that will help you in this scenario. 


Thanks,
Shakti