When the dropdownlist control is binded with a datasource which has large amount of data items, the prompt of ListSearchExtender will become unreadable, because the long list will block the prompt message, no matter the PromptPosition is Top or Buttom. It makes web user confused with their input for searching item.
Possible solution: add more PromptPosition such as left or right.
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please create a new inquiry.
Possible solution: add more PromptPosition such as left or right.
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please create a new inquiry.