Asp.net drop-down list box selects the table name as sqldatasource+Gridview, and selects how to open the table and update the data after adding data in edit mode.
There are many solutions:
1) Hide columns that you don't want to display in the bound GridView:
This. GridView 1。 Column [0]. Visible = false; //0 is the field name you don't want to display, and it can only be plastic;