Dropdownlist Performance issue while binding more than 15000

Question

Hello,

While binding more than 15000 rows into dropdownlist then page is hanged up. I am using the mentioned below code for this.

ddlList1.DataSource = ds.Tables[0];

ddlList1.DataTextField = "EmpID";

ddlList1.DataValueField = "EmpName";

ddlList1.DataBind();

Can anyone please help me for trouble out this problem.