如何在不刷新页面的情况下更改所选索引 [英] How to make the selected index change without refreshing the page

问题描述

在我的应用程序中，我使用的是下拉列表，我已返回所选的索引更改事件，以使某些控件显示为true和false.我已使用更新面板来不刷新整个页面.但是，当我选择下拉菜单时，页面每次都会刷新.在我的应用程序中，我使用了7个updatepanels.
谁能解决我的问题.这是代码:

Hi,

In my application I am using the dropdownlist for that I have return the selected index change event for making some controls to visible true and false. I have used the update panel for not refreshing the whole page. But when I select the dropdown the page is refreshing for every time. In my application I have used 7 updatepanels.
Can anyone solve my problem. Here is the code:

<tr>
       <td>
        <asp:UpdatePanel id="UpdatePanel1" runat="server" UpdateMode="Conditional">
    <contenttemplate>
       <table align="center">




                <tr>

    <td align="left" >
        <asp:Label id="lblPriorityId" runat="server" CssClass="css_normalLabel"

            Text="Priority:" ></asp:Label></td>
    <td align="left" >
                <asp:DropDownList ID="ddlPriorityId" runat="server" CssClass="css_dropdown"

                    TabIndex="27" Width="100px">
                    <asp:ListItem value="S">Standard</asp:ListItem>
                    <asp:ListItem value="H">High</asp:ListItem>
                </asp:DropDownList></td>
                <td align="right">
            <asp:Label id="lblDecideToBidId" runat="server" CssClass="css_normalLabel"

            Text="Bid Manager Decision:" ></asp:Label></td>
                    <td align="left"

                        >
                <asp:DropDownList ID="ddlDecideToBidId" runat="server" CssClass="css_dropdown"

                            TabIndex="28" AutoPostBack="true"  OnSelectedIndexChanged="ddlDecideToBidId_SelectedIndexChanged"

                            Width="100px">

                    <asp:ListItem value="Y">Go</asp:ListItem>
                    <asp:ListItem value="N">No Go</asp:ListItem>
                </asp:DropDownList>

        </td></tr>

        <tr><td align="left">
<asp:Label ID="lblBidOwner" CssClass="css_normalLabel"  runat="server"

         Text="Bid Owner:"></asp:Label>
        </td><td align="left" >
            <asp:RadioButtonList ID="rdbBidowner" runat="server" CssClass="css_radiobutton_list"

                OnSelectedIndexChanged="rdbBidOwner_SelectedIndexChanged"

                RepeatDirection="Horizontal" AutoPostBack="True" Width="150px" TabIndex="29" >
                <asp:ListItem Value="S">Self</asp:ListItem>
                <asp:ListItem Value="B">Bid Engineer</asp:ListItem>
            </asp:RadioButtonList>
            </td>
            <td align="left">
             <asp:DropDownList ID="drpBidEngineer"  runat="server"

                 CssClass="css_dropdown" Visible="false" TabIndex="30" Width="100px">
            </asp:DropDownList>
        </td>
        </tr>


        </table>
        </contenttemplate>
       </asp:UpdatePanel>
       </td>
       </tr>

在Advance中感谢

Thanks in Advance

推荐答案

您必须b使用updatepanel的下拉菜单

you must b using drop down out side of updatepanel

在DropDownList字段.这不会刷新页面.

Use RenderMode=''Partial'' in DropDownList field. This will not refresh page.

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