private void ddlOpeningBankBind()
{
AccountAdapter aa = new AccountAdapter();
DataSet ds = aa.getSettlementListForDDL();
DataRow dr = ds.Tables[0].NewRow();
dr["opening_bank"] = "请选择";
dr["account_name"] = "请选择";
ds.Tables[0].Rows.InsertAt(dr, 0);
ddl_opening_bank.DataTextField = "opening_bank";
ddl_opening_bank.DataValueField = "opening_bank";
ddl_opening_bank.DataSource = ds;
ddl_opening_bank.DataBind();
DropDownList2.DataTextField = "opening_bank";
DropDownList2.DataValueField = "opening_bank";
DropDownList2.DataSource = ds;
DropDownList2.DataBind();
}