"Not linked to another item" Error show in TestTools formchecker

Hi all ,

I have a UDO form with a textBox . A link button added in this text box using Screenpaint .

i have set Linkto ="TextBoxUniqID" , LinkedObject ="4" in Link button property and set Alias ='Table Columnname' ,DataBound='true',TableName ='@abcd' .link button work properly but error Textbox is "Not linked to another item" show in 'B1TE Tools' formchecker for the TextBox.

please any one help why this error show that TextBox not link to another item .

thanks in advance

surajit