Radlistbox - datatextfield

[Ayesha]

Hi,

I've a radlistbox and I set the datasource:

 List<CMListItem> obCMListItem = new List<CMListItem>(); (where CMListItem is a class).

m_radListBox.DataSource = obCMListItem.

This obCMlistItem has ItemName,Itemdescription and Item code as 3 elements.

I need to set my datatextfield of the radlistbox by combining the 2 elements of the class( combining ItemName and Itemdescription).

If I try to do the below approach, I get an error:

            m_radInstitutionLstBox.DataTextField  = String.Format("{0},{1}", Properties.Resources.Ttl_Col_ItemName , Properties.Resources.Ttl_Col_ItemDescription);
            m_radInstitutionLstBox.DataValueField = Properties.Resources.Ttl_Col_ItemName;
            m_radInstitutionLstBox.DataSource     = obCMListItem;
            m_radInstitutionLstBox.DataBind();

How can i handle this situation. Pls help me with code in c#

Thanks,
ZR

[Simon]

Hello Zaheka,

Please read more about the Data[...]Field properties usage (and how to resolve the issue) here.

As for your requirement, you could achieve it by handling the ItemDataBound event as shown below:

protected void m_radInstitutionLstBox_ItemDataBound(object sender, RadListBoxItemEventArgs e)
{
   CMListItem dataItem = (CMListItem)e.Item.DataItem;
   //setting different properties for the items
   e.Item.Text = tring.Format("{0},{1}", dataItem.ItemName, dataItem.Itemdescription);
}

Note: In this case you could skip setting the DataTextField property as you will be manually setting the Text property in the ItemDataBound event handler.

All the best,
Simon
the Telerik team

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