动态用户控件的添加及取值-西宁威势网络科技有限公司

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动态用户控件的添加及取值

文章作者：来源于互联网发布时间：2011/9/15 14:33:34 浏览次数：2979 次

用户控件ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="AddAttribute.ascx.cs" Inherits="Controls_AddAttribute" %>
<center>
<table border="1" cellpadding="0" cellspacing="2" width="100%">


                 <tr>

                    <td style="width: 189px; height: 25px" align="right">
                        属性名称：</td>
                    <td style="height: 25px" align="left">
                        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></td>

                </tr>
                 <tr>

                    <td style="width: 189px; height: 25px" align="right">
                        属性说明：</td>
                    <td style="height: 25px" align="left">
                        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
                        </td>

                </tr>

</table>

</center>

using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class Controls_AddAttribute : System.Web.UI.UserControl
{

    protected void Page_Load(object sender, EventArgs e)
    {
        this.TextBox1.Text = "ok";
        this.TextBox2.Text = "A";
    }

}

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Mall_AttributeManage.aspx.cs" Inherits="Manage_Mall_Mall_AttributeManage" %>

<%@ Register Src="http://www.cnblogs.com/Controls/AddAttribute.ascx" TagName="AddAttribute" TagPrefix="uc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>属性管理</title>
    <link rel="stylesheet" href="../css/common.css" type="text/css" />

</head>
<body>
    <form id="form1" runat="server">
    <div>
    <center>


             <table border="1" cellpadding="0" cellspacing="2" width="100%">

                <tr>

                    <td colspan="2" style="background-color:#507CD1;">
                        <asp:Label ID="Label1" runat="server" Text="Label" Width="705px"></asp:Label></td>

                </tr>
                 <tr>

                    <td style="width: 189px; height: 25px" align="right">
                        选择父类：</td>
                    <td style="height: 25px" align="left">
                        <asp:DropDownList ID="DropDownList1" runat="server" Width="150px">
                        </asp:DropDownList></td>

                </tr>
                 <asp:Panel ID="AddPanel" runat="server" Width="100%"></asp:Panel>
                </table>
                <table border="1" cellpadding="0" cellspacing="2" width="100%">

                <tr>

                    <td style="width: 275px" align="right"><asp:Button ID="btnSubmit" runat="server" CssClass="btn" Height="26px" Text="提  交" Width="80px" OnClick="btnAdd_Click" /></td>
                    <td style="width: 61px"></td>
                    <td align="left"><asp:Button ID="btnAdd" runat="server" CssClass="btn" Height="26px" Text="添加属性" Width="80px" /></td>

                </tr>

             </table>




       </center>
    </div>
    <asp:HiddenField ID="hfCount" runat="server" Value="0" />
    </form>
</body>
</html>

页面cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class Manage_Mall_Mall_AttributeManage : System.Web.UI.Page
{
    private int _count = 0;

    protected override void OnInit(EventArgs e)
    {

        base.OnInit(e);

        // 取得以前已创建控件的个数

        if (!String.IsNullOrEmpty(this.Request["hfCount"]))
        {

            _count = Convert.ToInt32(this.Request["hfCount"]);


        }

        // 假如按下“Add”按钮,那么count加一

        string target = this.Request["btnAdd"];
        //Response.Write(this.Request["hfCount"] + "//" + target);
        if (target == "添加属性")
        {

            _count++;

        }

        // 动态创建控件

        for (int i = 0; i < _count; i++)
        {
            // 这里以TextBox为例,实际上需要创建的是WebPartZone

            //TextBox newTextbox = new TextBox();
            //newTextbox.ID = "TXT" + i.ToString();
            //this.AddPanel.Controls.Add(newTextbox);

            Control c = LoadControl("http://www.cnblogs.com/Controls/AddAttribute.ascx");
            c.ID = "uc" + i.ToString();

            this.AddPanel.Controls.Add(c);

            //Add();
        }

    }
    protected void Page_Load(object sender, EventArgs e)
    {
        hfCount.Value = _count.ToString();
    }
    protected void btnAdd_Click(object sender, EventArgs e)
    {
        for (int i = 0; i < _count; i++)
        {
            TextBox txt1=(TextBox)this.AddPanel.FindControl("uc"+i.ToString()).FindControl("TextBox1");
            TextBox txt2=(TextBox)this.AddPanel.FindControl("uc"+i.ToString()).FindControl("TextBox2");
            this.Label1.Text += "/"+txt1.Text.Trim() + "///" + txt2.Text.Trim();
        }
    }

}

前台页面aspx

用户控件cs

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