Question

正在将新的用户控制编码下调我的代码是

        <%@ Control Language="C#" AutoEventWireup="true" CodeFile="StylishDDL.ascx.cs" Inherits="JDropDown.Controls_StylishDDL" %>   
     <script src="Jquery/jquery-1.3.2.min.js" type="text/javascript"></script>
        <script src="Jquery/jquery.selectbox-0.5.js" type="text/javascript"></script> 
        <script type="text/javascript">
                    $(document).ready(function () {
                        $( #ddlStytlish ).selectbox();
                    });
        </script>
        <asp:DropDownList ID="ddlStytlish" runat="server" ClientIDMode="Static">
        </asp:DropDownList>

namespace JDropDown
{
    public partial class Controls_StylishDDL : UserControl
    {
        public string _selectedvalue = "";
        public int _selectedIndex = 0;
        public Controls_StylishDDL( )
        {

        }
        public Controls_StylishDDL(int selectedIndex , string selectedval)
        {
            SelectedIndx = selectedIndex;
            SelectedVal = selectedval;
        }

        public string SelectedVal
        {
            get
            {
                _selectedvalue = this.ddlStytlish.SelectedValue;
                return _selectedvalue;
            }
            set { _selectedvalue = value; }
        }

        public int SelectedIndx
        {
            get
            {
                _selectedIndex = this.ddlStytlish.SelectedIndex;
                return this._selectedIndex;
            }

            set { this._selectedIndex = value; }
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            this.ddlStytlish.AutoPostBack = false;
            LoadStates();
        }

当我使用此控件时, 它工作正常, 除了它被删除的索引总是 0, 选中的值总是无效。

Answer 1

对于用户控制,有两种持续状态的选择:

用户控制属性只是环绕其中包含的控件属性(这些属性保持其状态)
用户控制维持了自己的状态

在此情况下, 用户控制( 更像是另一控件周围的包装纸) 正在读取取取时 {} 中的下载列表中的一些属性, 但它并没有将其放回 {} 。 } 一种选项是 : {}

public string SelectedVal
{
    get
    {
        _selectedvalue = this.ddlStytlish.SelectedValue;
        return _selectedvalue;
    }
    set 
    { 
        _selectedvalue = value; 
        this.ddlStytlish.SelectedValue = value; 
    }
}

另一个选择是维持用户控制特性,

http://www.asp.net/web-forms/vicens/how-do-i/how-do-do-i/how-do-persist-the-state-a-user-control-during-during- a-pack" rel=“nofollow'>http://www.asp.net/web-forms/vivices/how-do-i/how-do-i-persist-the-state-state-a-user-control-during-a-pack backpack

友情链接