I have a external list. I changed the textbox available for Student Id column and made it as a dropdownlist. Now I want to connect the datasource to the dropdownlist. I clicked on Data fields. In the change data bindings, in the select datasource,
i selected the datasource, data field for display text, i selected Student id, in the data field for value, i selected the student Id. Clicked on ok. In the Preview browser, when i try to view the page, i am getting error as Object reference not set error"
How to connect a dropdownlist to a datasource?
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