如何获得combobox当前显示的值：


string a = comboBox1.SelectedText;

string st = "select * from bookmark where categories=(select websortid from websort where websort ='a')";
bookmarkadapter.SelectCommand.CommandText = st ;
DataTable dt6 = new DataTable();
bookmarkadapter.Fill(dt6);
this.dataGridView1.DataSource = dt6;
谢谢！

SQL字符串有问题：
string st = "select * from bookmark where categories=(select websortid from websort where websort ='"+a+"')";

string a = Conbobox1.SelectedItem.Text   

获得ComboBox的值可以用()就可以了