How to get column values of weblistbox using cellclick event

Targets Web
1

here I need to single click on weblistbox and achieve all the values of columns with respect to row and want to fill textfields. But xojo.core.baddataaexception occures.
The code is

 PatientID=DataList.cell(row,0).val
  txtFName.text=DataList.cell(row,1).ToText
  txtLName.text=DataList.cell(row,2).ToText
  txtAddressOne.text=DataList.cell(row,3).ToText
  txtAddressTwo.text=DataList.cell(row,4).ToText
  txtStreet.text=DataList.cell(row,5).ToText
  txtState.text=DataList.cell(row,6).ToText
  txtZipcode.text=DataList.cell(row,7).ToText
  txtPhoneone.text=DataList.cell(row,8).ToText
  txtPhonetwo.text=DataList.cell(row,9).ToText
  txtEmail.text=DataList.cell(row,10).ToText

Error given at line 2
Please any one tell me that how to do this ??

3

TextField.Text is a string property.