Question

我正在尝试创建一个自动完成功能，能够推荐一个项目，其中该项目包含我输入的内容。

像这样

但我在文本框中实现此自动填充，而不是在dategridview的单元格中。

这是我的代码..

     private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {    
            if (dataGridView1.CurrentCell.ColumnIndex == 0)
            {
                string gkey = "";
                Connection.ConnectionClose();
                Connection.ConnectionOpen();
                int currentRow = dataGridView1.CurrentRow.Index;
                //TODO fill Customer list
                //string queryItem = "SELECT * FROM ITEM WHERE CODE LIKE '%" + dataGridView1.Rows[currentRow].Cells[0].Value.ToString() + "%'";
                string queryItem ="";
                //Console.WriteLine("asdf = " + );
                try
                {
                    gkey = dataGridView1.Rows[currentRow].Cells[0].Value.ToString();
                    queryItem = "SELECT * FROM ITEM WHERE CODE LIKE '*" + gkey + "*'";
                }
                catch (Exception ex)
                {
                    gkey = "";
                    queryItem = "SELECT * FROM ITEM ";
                }

                Console.WriteLine("qyery = "+queryItem);
                Connection.command = new OleDbCommand(queryItem, Connection.conn);
                Connection.command.CommandType = CommandType.Text;
                AutoCompleteStringCollection kode = new AutoCompleteStringCollection();
                reader = Connection.command.ExecuteReader();

                if (reader.HasRows == true)
                {
                    while (reader.Read())
                    {
                        kode.Add(reader["code"].ToString());
                    }
                }
                else
                {
                    MessageBox.Show("Data not Found");
                }
                reader.Close();
                //ComboBox txtBusID = e.Control as ComboBox;
                TextBox kodeTxt = e.Control as TextBox;
                if (kodeTxt != null)
                {
                    kodeTxt.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
                    kodeTxt.AutoCompleteCustomSource = kode;
                    kodeTxt.AutoCompleteSource = AutoCompleteSource.CustomSource;
                }

            }
}

如何实现像上面的图像一样的自动完成，这个自动完成可以使用＆＃34; LIKE＆＃34;，在sql查询中类似

例如..

此图片...当我输入＆＃34; SAM＆＃34;时，该列表会出现，但是当我输入＆＃34; AM＆＃34;该列表不再是明显的。

Answer 1

您必须覆盖以下方法：

dataGridView1_EditingControlShowing

以下是进一步的解释：http://csharp.net-informations.com/datagridview/autogridview.htm

C＃使用LIKE创建自动完成

1 个答案: