How to bind textboxes based on selection of dropdownlist??

Question

Hi I have table named tbl_Employee having columns Employee_name,Emp_ID,Emp_Salary,Emp_State,Emp_Mobile Number.

 

Now I have an aspx page where I used a dropdownlist and binded with the dtabase which when we click we get all Employee name from that dropdownlist.

Here is the code:-

  protected void Page_Load(object sender, EventArgs e){if (!this.IsPostBack){string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;using (SqlConnection con = new SqlConnection(constr)){using (SqlCommand cmd = new SqlCommand("SELECT EmpId, Name FROM tblEmployee")){cmd.CommandType = CommandType.Text;cmd.Connection = con;con.Open();ddlEmployee.DataSource = cmd.ExecuteReader();ddlEmployee.DataTextField = "Name";ddlEmployee.DataValueField = "EmpId";ddlEmployee.DataBind();con.Close();}}ddlEmployee.Items.Insert(0, new ListItem("--Select Employee--", "0"));}}

 Now on the same page I have 3 textbox named txtname, txtMobile, and txtState. So I want to bind the value from database to those textbox on selection of particular employee to that drop downlist.

 

For Ex. If have selected Empname 'ABC' those 3 textboxes should be bind with the value of ABC name, ABC mobile and his State.

How do I do that?? Do I have to use Jquery??

Please help me.