Javascript 如何从listview中的dropdownlist中获取所选值？

我在ListView中有一个DropDownList。。我想在单击按钮时获取数据。这是我的密码

ı尝试了一些功能，但我做不到

这是aspx页面

   <asp:ListView ID="ListView1" runat="server"    OnItemCommand="ListView2_ItemCommand"  OnItemDataBound="ListView1_ItemDataBound">
        <ItemTemplate>
            <div class="ortdadiv">
        <div class="urundiv">

            <div class="resimdiv">
                <div class="resimdivic">
                    <img runat="server" id="img1" src='<%# Eval("UrunResim_Path") %>' width="250" height="250" class="resim" />
                </div>
                <div class="resimlbldiv">

                    <asp:Label ID="Label3" runat="server" Text='<%# Eval("UrunADI") %>' CssClass="resimlbl"></asp:Label>


                </div>

            </div>
        </div>

        <div class="ddldiv">
            <asp:DropDownList ID="DropDownList1"  OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"   runat="server" CssClass="ddl" AutoPostBack="False" AppendDataBoundItems="true" DataTextField="sayılartxt"
                DataValueField="sayılar">
                <asp:ListItem Value="0">-- ADET SEÇ --</asp:ListItem>
            </asp:DropDownList>
            <asp:DropDownList ID="DropDownList2" runat="server"  CssClass="ddl" AutoPostBack="False" AppendDataBoundItems="true" >
                <asp:ListItem Value="0">-- MF SEÇ --</asp:ListItem>
            </asp:DropDownList>

            <asp:Button ID="Button1" runat="server" OnCommand="ButtonComand"     CommandName='<%# Eval("UrunADI") %>' Text="EKLE" CssClass="btn"    />


        </div>
    </div>
        </ItemTemplate>`enter code here`
    </asp:ListView>

'width=“250”height=“250”class=“resim”/>
--阿黛特·塞切赫--
--MF SEÇ--
`在这里输入代码`