为什么我的asp:textbox的text值还是旧的?

我的服务器控件textbox,赋值text属性,完全没有问题.但是读的时候有问题了。用户更改了text内容，但是，我通过text属性，得到的，还是原来的值。郁闷啊。

解决方案 »

  1.   

    <%@ Page language="c#" ValidateRequest=false  Codebehind="Admin_Announcement_Edit.aspx.cs" AutoEventWireup="false" Inherits="Org.Lacl.Lacl.Admin_Announcement_Edit" %>
    <%@ Register TagPrefix="FTB" Namespace="FreeTextBoxControls" Assembly="FreeTextBox" %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
    <HTML>
    <HEAD>
    <title>Admin_Announcement_Edit</title>
    <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
    <meta name="CODE_LANGUAGE" Content="C#">
    <meta name="vs_defaultClientScript" content="JavaScript">
    <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
    </HEAD>
    <body>
    <form id="Form1" method="post" runat="server">
    <FONT face="宋体">
    <P>
    <asp:Label id="Labelannouncement_id" runat="server">编号</asp:Label>
    <asp:TextBox id="TextBoxannouncement_id" runat="server" ReadOnly="True"></asp:TextBox>
    <asp:Label id="Labelannouncement_title" runat="server">标题</asp:Label>
    <asp:TextBox id="TextBoxannouncement_title" runat="server"></asp:TextBox><BR>
    <asp:Label id="Labelannouncement_datetime" runat="server">时间</asp:Label>
    <asp:TextBox id="TextBoxannouncement_datetime" runat="server" ReadOnly="True"></asp:TextBox>
    <asp:Label id="Labelannouncement_auther" runat="server">作者</asp:Label>
    <asp:TextBox id="TextBoxannouncement_auther" runat="server" ReadOnly="True"></asp:TextBox><BR>
    <asp:Label id="Labelannouncement_isfront" runat="server">作者</asp:Label>
    <asp:CheckBox id="CheckBoxannouncement_isfront" runat="server"></asp:CheckBox>
    <asp:Label id="Labelannouncement_content" runat="server">内容</asp:Label><BR>
    <FTB:FreeTextBox id="FreeTextBoxannouncement_content" runat="Server" /><BR>
    <asp:Button id="ButtonSave" runat="server" Text="保存"></asp:Button>
    <asp:Button id="ButtonDelete" runat="server" Text="删除"></asp:Button>
    <asp:Button id="ButtonAdd" runat="server" Text="添加"></asp:Button></P>
    </FONT>
    </form>
    </body>
    </HTML>
      

  2.   

    using System;
    using System.Collections;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Web;
    using System.Web.SessionState;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.HtmlControls;namespace Org.Lacl.Lacl
    {
    /// <summary>
    /// Admin_Announcement_Edit 的摘要说明。
    /// </summary>
    public class Admin_Announcement_Edit : System.Web.UI.Page
    {
    protected System.Web.UI.WebControls.TextBox TextBoxannouncement_id;
    protected System.Web.UI.WebControls.TextBox TextBoxannouncement_title;
    protected System.Web.UI.WebControls.TextBox TextBoxannouncement_datetime;
    protected System.Web.UI.WebControls.TextBox TextBoxannouncement_auther;
    protected System.Web.UI.WebControls.Label Labelannouncement_auther;
    protected System.Web.UI.WebControls.Label Labelannouncement_datetime;
    protected System.Web.UI.WebControls.Label Labelannouncement_title;
    protected System.Web.UI.WebControls.Label Labelannouncement_content;
    protected FreeTextBoxControls.FreeTextBox FreeTextBoxannouncement_content;
    protected System.Web.UI.WebControls.Label Labelannouncement_isfront;
    protected System.Web.UI.WebControls.CheckBox CheckBoxannouncement_isfront;
    protected System.Web.UI.WebControls.Button ButtonSave;
    protected System.Web.UI.WebControls.Button ButtonDelete;
    protected System.Web.UI.WebControls.Button ButtonAdd;
    protected System.Web.UI.WebControls.Label Labelannouncement_id;

    private void Page_Load(object sender, System.EventArgs e)
    {
    if(Page.Request.QueryString["announcement_id"]!= String.Empty )
    {
    System.Data.IDbConnection DbConn=Utility.GetDBConnection();
    DbConn.Open();
    System.Data.IDbCommand DbCmd=DbConn.CreateCommand();
    DbCmd.CommandText
    ="SELECT announcement_id,announcement_title,announcement_datetime,announcement_auther,announcement_isfront,announcement_content from lacl.announcement where announcement_id='"
    +Page.Request.QueryString["announcement_id"]
    +"'  limit 1";
    System.Data.IDataReader dataReader=DbCmd.ExecuteReader();
    while(dataReader.Read())
    {
    this.TextBoxannouncement_id.Text=dataReader.GetString(0);
                        this.TextBoxannouncement_title.Text=dataReader.GetString(1);
    this.TextBoxannouncement_datetime.Text=dataReader.GetString(2);
    this.TextBoxannouncement_auther.Text=dataReader.GetString(3);
    this.CheckBoxannouncement_isfront.Checked=dataReader.GetBoolean(4);
    this.FreeTextBoxannouncement_content.Text=dataReader.GetString(5);
    }
    dataReader.Close();
    }
    }
    #region Web 窗体设计器生成的代码
    override protected void OnInit(EventArgs e)
    {
    //
    // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
    //
    InitializeComponent();
    base.OnInit(e);
    }

    /// <summary>
    /// 设计器支持所需的方法 - 不要使用代码编辑器修改
    /// 此方法的内容。
    /// </summary>
    private void InitializeComponent()
    {    
    this.ButtonSave.Click += new System.EventHandler(this.ButtonSave_Click);
    this.Load += new System.EventHandler(this.Page_Load); }
    #endregion private void ButtonSave_Click(object sender, System.EventArgs e)
    {
    System.Data.IDbConnection DbConn=Utility.GetDBConnection();
    DbConn.Open();
    System.Data.IDbCommand DbCmd=DbConn.CreateCommand();
    DbCmd.CommandText
    ="UPDATE lacl.announcement SET announcement_title='"
    +this.TextBoxannouncement_title.Text
    +"',announcement_content='"
    +this.FreeTextBoxannouncement_content.HtmlStrippedText
    +"' where announcement_id='"
    +this.TextBoxannouncement_id.Text
    +"'";
    Page.Response.Write(DbCmd.CommandText);
    DbCmd.ExecuteNonQuery();
    }
    }
    }