I had a datagridview which contains all the last name of a certain database.the data was displaying properly .I want to accomplished two tasks,first I want it that upon loading on the datagrid, data are sorted alphabetically already even without pressing the column header.Second I want to search the datagrid using a text box. I want like an autocomplete manner, if I type a single letter, say "B", the datagridcolumn will automatically point to the the name say "Bal" and so on...thanks....