DataGridView not updating in C #

Question

Has anyone received an explanation of what is happening? Changing code 1 to code 2 fixes the problem, although theoretically there should be no difference. (Theory gets into practice like a pumpkin striking a brick wall).

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Code 1:

OutputDataGridView.DataSource = myList; 

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Code 2:

  OutputDataGridView.DataSource = null; OutputDataGridView.DataSource = myList; 

Answer 1

Look at this link

simple DataGridView update question

Answer 2

 protected void btnWhateverClick(object sender, EventArgs e) { myGridView.DataSourceID = String.Empty; myGridView.DataSource = new int[0]; myGridView.DataBind(); } 

and you're done.

For Ref DataSource in gridview