Forms :: Combobox And Textbox - Display Fcorresponding Data In Textbox1 And Textbox2

I use following codes to diplay data in combobox

str = "SELECT sno,name,city FROM employees"
cmd = New SqlClient.SqlCommand(str, con)

[CODE]..............

With ComboBox1
.DataSource = dt

[CODE].......

Table has three fields as sno,name,city Combobox displays name column and data in table is as

sno--name-----city
1-------a------london
2-------b------moscow
3-------c-------tehran

Supose combobox text=a then I want to display following corresponding data in textbox1 and textbox2

textbox1.text=1
textbox2.text=london
(the first row of data)