如何动态添加子控件(动态添加TextBox控件)-控件新闻-慧都网

如何动态添加子控件(动态添加TextBox控件)

翻译|其它|编辑：郝浩|2007-09-25 11:23:18.000|阅读 2051 次

概述：

<%...@ Page Language="C#" AutoEventWireup="true" CodeFile="InQuiryAdd2.aspx.cs" Inherits="InQuiryManager_InQuiryAdd2" %>

<!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>娣诲姞璋冩煡淇℃伅</title>
    <link href="../CSS/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <table style="width: 100%">
            <tr>
                <td colspan="2"  bgcolor="#5D7B9D" ">
             <div class="v12WhiteB" style="padding-top: 3px;">
                <a id="A2" href="#"><font color="white">娣诲姞闂</font></a></div>
                </td>
                <asp:Label ID="Label1" runat="server" ForeColor="Red" Width="300px"></asp:Label><asp:Label ID="Lbl_WrongMessage" runat="server" ForeColor="Red" Width="300px"></asp:Label></tr>
            <tr>
                <td>
                    <asp:Label ID="Lbl_InQuiryQuestion" runat="server" Height="11px" Text="鏍囥€€棰? Width="67px"></asp:Label></td>
                <td>
                    <asp:TextBox ID="Txt_InQuiryQuestion" runat="server" CssClass="ipt120px" Width="218px"></asp:TextBox></td>
            </tr>
            <tr>
                <td>
    <asp:Label ID="Lbl_IsShow" runat="server" Text="鏄惁鏄剧ず"></asp:Label></td>
                <td>
                    <asp:RadioButton ID="Rad_Yes" runat="server" GroupName="isshow" Text="  鏄? " />
                    <asp:RadioButton ID="Rad_No" runat="server" GroupName="isshow" Text="  鍚?" /></td>
            </tr>
            <tr>
                <td>
                    <asp:Label ID="Lbl_CheckType" runat="server" Text="閫夐」绫诲瀷"></asp:Label></td>
                <td>
                    <asp:RadioButton ID="Rad_CheckOne" runat="server" GroupName="CheckType" Text="鍗曢€? />
                    <asp:RadioButton ID="Rad_CheckMore" runat="server" GroupName="CheckType" Text="澶氶€? /></td>
            </tr>
            <tr>
                <td colspan="2" bgcolor="#5D7B9D">
                       <div class="v12WhiteB" style="padding-top: 3px;">
                   <a id="A1" href="#"><font color="white">娣诲姞閫夐」</font></a></div>
                </td>
            </tr>
            <tr>
                <td>
                    <asp:DataList ID="DataList1" runat="server" OnItemCreated="DataList1_ItemCreated">

                    </asp:DataList></td>
                <td>
                    <asp:Button ID="btn_AddQuestion" runat="server" Text="娣诲姞閫夐」" OnClick="btn_AddQuestion_Click" CssClass="btn80px" /></td>
            </tr>
            <tr>
                <td align="center">
                    <asp:Button ID="btn_Save" runat="server" Text="鎻愪氦" OnClick="btn_Save_Click" Width="100px" CssClass="btn80px" /></td>
                <td align="center">
                    <asp:Button ID="btn_Reset" runat="server" OnClick="btn_Reset_Click" Text="閲嶇疆" Width="100px" CssClass="btn80px" /></td>
            </tr>
            <tr>
                <td align="center" colspan="2">
                    </td>
            </tr>
        </table>

    </div>
    </form>
</body>
</html>

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;
using BigOA.Logic;

public partial class InQuiryManager_InQuiryAdd2 : System.Web.UI.Page
...{
    protected void Page_Load(object sender, EventArgs e)
    ...{
        if (!this.IsPostBack)
        ...{
            DataTable dt = new DataTable();
            dt.Columns.Add("newcolumns");
            for (int i = 0; i < 3; i++)
            ...{
                DataRow row = dt.NewRow();
                dt.Rows.Add(row);
            }
            this.DataList1.DataSource = dt;
            this.DataList1.DataBind();
            ViewState["dt"] = dt;
        }
    }
    protected void btn_AddQuestion_Click(object sender, EventArgs e)
    ...{
        DataTable dt = (DataTable)ViewState["dt"];
        for (int i = 0; i < this.DataList1.Items.Count; i++)
        ...{
            TextBox tb = (TextBox)this.DataList1.Items[i].Controls[0];
            dt.Rows[i][0] = tb.Text;
        }

        DataRow row = dt.NewRow();
        row[0] = "";
        dt.Rows.Add(row);
        ViewState["dt"] = dt;
        this.DataList1.DataSource = dt;
        this.DataList1.DataBind();
    }
    protected void DataList1_ItemCreated(object sender, DataListItemEventArgs e)
    ...{
        DataRowView drv = (DataRowView)(e.Item.DataItem);

        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        ...{
            TextBox tmptxt = new TextBox();

            if (drv != null)
            ...{
                tmptxt.Text = drv[0].ToString();
            }
            tmptxt.MaxLength = 80;
            e.Item.Controls.Add(tmptxt);
        }
    }
    protected void btn_Save_Click(object sender, EventArgs e)
    ...{

        try
        ...{
            Lbl_WrongMessage.Text = "";
            InQuiryQuestion QuiryQuestion = new InQuiryQuestion();
            if (Txt_InQuiryQuestion.Text.Trim() != "")
            ...{
                QuiryQuestion.Title = Txt_InQuiryQuestion.Text.ToString();
            }
            else
            ...{
                throw new Exception("璋冩煡鏍囬涓嶈兘涓虹┖锛?);
            }
            if (Rad_Yes.Checked || Rad_No.Checked)
            ...{
                if (Rad_Yes.Checked)
                ...{
                    QuiryQuestion.IsShow = "鏄?;
                }
                else
                ...{
                    QuiryQuestion.IsShow = "鍚?;
                }
            }
            else
            ...{
                throw new Exception("鏄惁鏄剧ず鑷冲皯瑕侀€夋嫨涓€椤癸紒");
            }
            if (Rad_CheckMore.Checked || Rad_CheckOne.Checked)
            ...{
                if (Rad_CheckMore.Checked)
                ...{
                    QuiryQuestion.CheckType = "澶氶€?;
                }
                else
                ...{
                    QuiryQuestion.CheckType = "鍗曢€?;
                }
            }
            else
            ...{
                throw new Exception("绫诲瀷鑷冲皯瑕侀€夋嫨涓€椤癸紒");
            }

            for (int i = 0; i < this.DataList1.Items.Count; i++)
            ...{
                TextBox txt_tmp = (TextBox)this.DataList1.Items[i].Controls[0];
                if (txt_tmp.Text.Trim() == "")
                ...{
                    txt_tmp.Focus();
                    throw new Exception("鎮ㄦ病鏈夊～鍐欒皟鏌ラ€夐」!");

                }
            }

            int id = QuiryQuestion.Insert();

            for (int i = 0; i < this.DataList1.Items.Count; i++)
            ...{
                TextBox txt_answer = (TextBox)this.DataList1.Items[i].Controls[0];
                SaveAnswer(id, txt_answer.Text);
            }

            Page.ClientScript.RegisterStartupScript(typeof(string), "", "<script language='javascript'>alert('娣诲姞鎴愬姛');window.location.href=window.location.href;</script>");
            Txt_InQuiryQuestion.Text = "";
            Rad_No.Checked = false;
            Rad_Yes.Checked = false;
            Rad_CheckMore.Checked = false;
            Rad_CheckOne.Checked = false;
        }
        catch (Exception ex)
        ...{
            Lbl_WrongMessage.Text = ex.Message.ToString();
        }
    }

    private void SaveAnswer(int questionID, string answer)
    ...{
        try
        ...{
            Lbl_WrongMessage.Text = "";
            InQuiryAnswer QuiryAnswer = new InQuiryAnswer();
            QuiryAnswer.Answer = answer;
            QuiryAnswer.InQuiryQuestionID = questionID;
            QuiryAnswer.Insert();
        }
        catch (Exception ex)
        ...{
            Lbl_WrongMessage.Text = ex.Message.ToString();
        }
    }
    protected void btn_Reset_Click(object sender, EventArgs e)
    ...{

        Lbl_WrongMessage.Text = "";
        Txt_InQuiryQuestion.Text = "";
        Rad_Yes.Checked = false;
        Rad_No.Checked = false;
        Rad_CheckMore.Checked = false;
        Rad_CheckOne.Checked = false;
        Page.ClientScript.RegisterStartupScript(typeof(string), "", "<script language='javascript'>window.location.href=window.location.href;</script>");

    }
}