Question

我正在winform.i工作一个字典项目有一个文本框，我输入我的文本。每当我输入任何文本，我将显示单词及其含义where word = my_entered_text。我试过这个

private void textBox1_TextChanged(object sender, EventArgs e)
    {

        string word = textBox1.Text;

        //connect to database
        SqlCeConnection con = new SqlCeConnection(@"Data Source=C:\Users\Imon-Bayazid\Documents\new2.sdf");


        using (con)
        {
            con.Open();
            // 2
            // Create new DataAdapter
            using (SqlCeDataAdapter a = new SqlCeDataAdapter(
               "SELECT English FROM Table1 WHERE (English like '" + word + "%')", con))
            {
                // 3
                // Use DataAdapter to fill DataTable
                DataTable t = new DataTable();
                a.Fill(t);
                // 4
                // Render data onto the screen
                dataGridView2.DataSource = t;
            }

            using (SqlCeDataAdapter b = new SqlCeDataAdapter(
                "SELECT Bangla FROM Table1 WHERE (English like '" + word + "%')", con))
            {
                // 3
                // Use DataAdapter to fill DataTable
                DataTable tt = new DataTable();
                b.Fill(tt);
                // 4
                // Render data onto the screen
                dataGridView1.DataSource = tt;

            }
        }
    }

但它在“dataGridView1.DataSource = tt;”行显示“参数无效”的异常我怎么解决这个???

Answer 1

"SELECT Bangla FROM Table1 WHERE (English like '" + word + "%')"

PS。 '英语'列可能不存在于Bangla表中

使用datagrid显示数据库中的数据

1 个答案: