我在VC#和ADO SQLITE一个新手...使用组合框的值作为查询值(VC#2K8/ADO SQLITE)
我试图根据价值来更改ComboBox的内容呈现一个又一个......
我的问题是在这里:
SQLiteCommand cmd3 = new SQLiteCommand("select distinct(ACTION) from ACTION_LIST where CATEGORY='comboBox1.text'", conn2);
使用什么做这项工作?这里comboBox1.text'是看到作为一个句子不是一个变量...
下面是代码:
private void Form1_Load(object sender, EventArgs e)
{
using (SQLiteConnection conn1 = new SQLiteConnection(@"Data Source = Data\MRIS_DB_MASTER"))
{
conn1.Open();
SQLiteCommand cmd2 = new SQLiteCommand("select distinct(CATEGORY) from ACTION_LIST", conn1);
SQLiteDataAdapter adapter1 = new SQLiteDataAdapter(cmd2);
DataTable tbl1 = new DataTable();
adapter1.Fill(tbl1);
comboBox1.DataSource = tbl1;
comboBox1.DisplayMember = "CATEGORY";
adapter1.Dispose();
cmd2.Dispose();
}
using (SQLiteConnection conn2 = new SQLiteConnection(@"Data Source = Data\MRIS_DB_MASTER"))
{
conn2.Open();
SQLiteCommand cmd3 = new SQLiteCommand("select distinct(ACTION) from ACTION_LIST where CATEGORY='comboBox1.text'", conn2);
SQLiteDataAdapter adapter2 = new SQLiteDataAdapter(cmd3);
DataTable tbl2 = new DataTable();
adapter2.Fill(tbl2);
comboBox2.DataSource = tbl2;
comboBox2.DisplayMember = "ACTION";
adapter2.Dispose();
cmd3.Dispose();
}
}
感谢
问候
谢谢,它的工作就像我想要的。 Regards – nicodevil 2010-05-29 19:35:11