我们可以从ASP分配selectedvalue吗？隐藏领域的下拉？ [英] can we assign selectedvalue from ASP. dropdown to Hidden field?

问题描述

你好专家



我有一个下拉和隐藏字段。我想在隐藏字段值文字中分配选定的下拉值。

Hello Experts

I have a drop down and hidden field. I want to assign the selected value of Drop down in the hidden field value literal.

<asp:DropDownList ID="ddlTireLn" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlTireLn_SelectedIndex"

                               DataTextField="I001TRLN" DataValueField="I001TRLN" Height="16px" Width="100%">
                            </asp:DropDownList>
                            <input type="hidden" name="TirelineSearch" value="<asp:Literal id='litTirelineSearch' runat='server' />" />

有谁能告诉我如何实现这个目标？

Can anyone tell me how to achieve this?

推荐答案

<asp:DropDownList ID="ddlTireLn" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlTireLn_SelectedIndex"

    DataTextField="I001TRLN" DataValueField="I001TRLN" Height="16px" Width="100%">
</asp:DropDownList>
<asp:HiddenField ID="TirelineSearch" runat="server" />

protected void ddlTireLn_SelectedIndex(object sender, EventArgs e)
{
    TirelineSearch.Value = ddlTireLn.SelectedValue;
}

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