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DataTable dataTable = (DataTable)dgv.DataSource;
dataTable.Columns.Remove("ID");
private void Query()
{
DataTable dataTable = DBHelper.ExecuteDataTable(connectionString, CommandType.Text, sql, null);
int cnt = dataTable.Rows.Count;
dgv.DataSource = dataTable;
}
private void Export()
{
DataTable dataTable = (DataTable)dgv.DataSource;
dataTable.Columns.Remove("id");
}
你重新绑定数据源就好了
为毛要移走?? 不能将datagridview.columns("ID").visual =false