我在winform中工作一个字典项目。我有一个文本框,我在其中输入我的文本。每当我输入任何文本时,我都会在word = my_entered_text的位置显示单词及其含义。我试过这样
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”异常 我该如何解决这个问题???