Auto-complete feature in .net for winforms controls

Many a times it is required for us to use the auto-complete feature in the controls of the winforms .net application. This feature of auto-complete can be applied both to textbox and combobox alike. The code for it in c#.net is as follows:

public void AutoCompleteTextBox(string tableName, string fieldName, TextBox txtToAutoComp)

        {

            AutoCompleteStringCollection txtCollection = new AutoCompleteStringCollection();

            DataTable dtAutoComp = Dal.ExecuteSP("StoredProcedure", fieldName, tableName);

            if (dtAutoComp.Rows.Count >= 0)

            {

                for (int count = 0; count < dtAutoComp.Rows.Count; count++)

                {

                    txtCollection.Add(dtAutoComp.Rows[count][fieldName].ToString());

                }

            }

            txtToAutoComp.AutoCompleteMode = AutoCompleteMode.SuggestAppend;

            txtToAutoComp.AutoCompleteSource = AutoCompleteSource.CustomSource;

            txtToAutoComp.AutoCompleteCustomSource = txtCollection;

        }

For implementing the code for combobox just replace the textbox variable with combobox variable. Everything else remains same.